Below are the 5808 trading days of historical prices for ALGN.
# | Exchange | Symbol | Date | Open | High | Low | Close | 5808 | NASDAQ | ALGN | Fri, Mar 1, 2024 | 301.36 | 304.63 | 297.24 | 300.01 | 5807 | NASDAQ | ALGN | Thu, Feb 29, 2024 | 303.10 | 306.80 | 301.65 | 302.42 | 5806 | NASDAQ | ALGN | Wed, Feb 28, 2024 | 308.87 | 309.40 | 302.06 | 302.39 | 5805 | NASDAQ | ALGN | Tue, Feb 27, 2024 | 311.79 | 313.71 | 308.14 | 313.06 | 5804 | NASDAQ | ALGN | Mon, Feb 26, 2024 | 312.90 | 316.91 | 310.74 | 310.84 | 5803 | NASDAQ | ALGN | Fri, Feb 23, 2024 | 315.35 | 321.83 | 314.06 | 316.88 | 5802 | NASDAQ | ALGN | Thu, Feb 22, 2024 | 305.44 | 317.25 | 303.58 | 316.56 | 5801 | NASDAQ | ALGN | Wed, Feb 21, 2024 | 307.81 | 309.11 | 300.08 | 304.65 | 5800 | NASDAQ | ALGN | Tue, Feb 20, 2024 | 304.33 | 314.70 | 303.01 | 313.53 | 5799 | NASDAQ | ALGN | Fri, Feb 16, 2024 | 307.19 | 314.32 | 305.08 | 308.77 | 5798 | NASDAQ | ALGN | Thu, Feb 15, 2024 | 307.36 | 312.48 | 305.43 | 309.77 | 5797 | NASDAQ | ALGN | Wed, Feb 14, 2024 | 295.33 | 303.13 | 293.30 | 302.75 | 5796 | NASDAQ | ALGN | Tue, Feb 13, 2024 | 290.97 | 296.17 | 288.34 | 292.32 | 5795 | NASDAQ | ALGN | Mon, Feb 12, 2024 | 294.71 | 303.88 | 294.71 | 302.44 | 5794 | NASDAQ | ALGN | Fri, Feb 9, 2024 | 292.83 | 298.54 | 291.06 | 296.37 | 5793 | NASDAQ | ALGN | Thu, Feb 8, 2024 | 285.37 | 296.60 | 283.67 | 295.00 | 5792 | NASDAQ | ALGN | Wed, Feb 7, 2024 | 288.18 | 291.04 | 282.59 | 284.73 | 5791 | NASDAQ | ALGN | Tue, Feb 6, 2024 | 276.50 | 293.92 | 276.02 | 288.44 | 5790 | NASDAQ | ALGN | Mon, Feb 5, 2024 | 272.06 | 276.42 | 267.93 | 275.58 | 5789 | NASDAQ | ALGN | Fri, Feb 2, 2024 | 270.00 | 277.29 | 263.85 | 273.90 | 5788 | NASDAQ | ALGN | Thu, Feb 1, 2024 | 303.00 | 308.00 | 266.30 | 273.38 | 5787 | NASDAQ | ALGN | Wed, Jan 31, 2024 | 264.55 | 274.00 | 262.00 | 267.32 | 5786 | NASDAQ | ALGN | Tue, Jan 30, 2024 | 267.78 | 271.00 | 264.05 | 264.74 | 5785 | NASDAQ | ALGN | Mon, Jan 29, 2024 | 263.14 | 274.80 | 263.14 | 270.39 | 5784 | NASDAQ | ALGN | Fri, Jan 26, 2024 | 264.55 | 269.85 | 262.60 | 264.28 | 5783 | NASDAQ | ALGN | Thu, Jan 25, 2024 | 261.34 | 262.57 | 254.28 | 262.11 | 5782 | NASDAQ | ALGN | Wed, Jan 24, 2024 | 269.00 | 269.00 | 257.05 | 257.07 | 5781 | NASDAQ | ALGN | Tue, Jan 23, 2024 | 274.10 | 274.10 | 264.26 | 266.43 | 5780 | NASDAQ | ALGN | Mon, Jan 22, 2024 | 269.00 | 273.38 | 266.05 | 271.61 | 5779 | NASDAQ | ALGN | Fri, Jan 19, 2024 | 264.20 | 267.21 | 260.45 | 266.34 | 5778 | NASDAQ | ALGN | Thu, Jan 18, 2024 | 264.09 | 264.68 | 259.22 | 264.51 | 5777 | NASDAQ | ALGN | Wed, Jan 17, 2024 | 261.00 | 264.79 | 256.81 | 259.56 | 5776 | NASDAQ | ALGN | Tue, Jan 16, 2024 | 268.50 | 268.92 | 264.58 | 267.46 | 5775 | NASDAQ | ALGN | Fri, Jan 12, 2024 | 276.36 | 279.15 | 270.13 | 271.64 | 5774 | NASDAQ | ALGN | Thu, Jan 11, 2024 | 276.89 | 280.22 | 273.85 | 276.36 | 5773 | NASDAQ | ALGN | Wed, Jan 10, 2024 | 277.00 | 279.94 | 271.22 | 276.79 | 5772 | NASDAQ | ALGN | Tue, Jan 9, 2024 | 269.34 | 281.94 | 268.68 | 277.52 | 5771 | NASDAQ | ALGN | Mon, Jan 8, 2024 | 264.81 | 275.00 | 263.78 | 273.94 | 5770 | NASDAQ | ALGN | Fri, Jan 5, 2024 | 259.00 | 269.75 | 259.00 | 264.68 | 5769 | NASDAQ | ALGN | Thu, Jan 4, 2024 | 255.00 | 263.19 | 253.20 | 261.36 | 5768 | NASDAQ | ALGN | Wed, Jan 3, 2024 | 263.59 | 263.72 | 250.28 | 256.22 | 5767 | NASDAQ | ALGN | Tue, Jan 2, 2024 | 271.00 | 272.86 | 266.07 | 268.92 | 5766 | NASDAQ | ALGN | Fri, Dec 29, 2023 | 275.13 | 278.00 | 272.99 | 274.00 | 5765 | NASDAQ | ALGN | Thu, Dec 28, 2023 | 274.63 | 279.00 | 274.14 | 276.67 | 5764 | NASDAQ | ALGN | Wed, Dec 27, 2023 | 274.19 | 276.22 | 272.72 | 275.28 | 5763 | NASDAQ | ALGN | Tue, Dec 26, 2023 | 272.46 | 276.51 | 269.34 | 274.19 | 5762 | NASDAQ | ALGN | Fri, Dec 22, 2023 | 275.40 | 276.09 | 269.15 | 271.87 | 5761 | NASDAQ | ALGN | Thu, Dec 21, 2023 | 267.19 | 274.84 | 267.01 | 274.10 | 5760 | NASDAQ | ALGN | Wed, Dec 20, 2023 | 266.18 | 271.09 | 261.78 | 262.08 | 5759 | NASDAQ | ALGN | Tue, Dec 19, 2023 | 262.72 | 270.31 | 262.66 | 268.31 | 5758 | NASDAQ | ALGN | Mon, Dec 18, 2023 | 254.52 | 267.22 | 253.60 | 261.69 | 5757 | NASDAQ | ALGN | Fri, Dec 15, 2023 | 257.28 | 262.62 | 251.57 | 255.01 | 5756 | NASDAQ | ALGN | Thu, Dec 14, 2023 | 245.00 | 264.58 | 245.00 | 257.02 | 5755 | NASDAQ | ALGN | Wed, Dec 13, 2023 | 218.15 | 231.54 | 217.32 | 231.36 | 5754 | NASDAQ | ALGN | Tue, Dec 12, 2023 | 219.36 | 219.49 | 212.87 | 217.47 | 5753 | NASDAQ | ALGN | Mon, Dec 11, 2023 | 215.00 | 221.67 | 214.80 | 218.68 | 5752 | NASDAQ | ALGN | Fri, Dec 8, 2023 | 215.86 | 222.05 | 214.90 | 221.23 | 5751 | NASDAQ | ALGN | Thu, Dec 7, 2023 | 216.82 | 218.49 | 214.11 | 216.61 | 5750 | NASDAQ | ALGN | Wed, Dec 6, 2023 | 218.25 | 219.00 | 215.32 | 216.87 | 5749 | NASDAQ | ALGN | Tue, Dec 5, 2023 | 217.17 | 217.98 | 211.80 | 215.35 | 5748 | NASDAQ | ALGN | Mon, Dec 4, 2023 | 218.00 | 220.80 | 214.93 | 219.60 | 5747 | NASDAQ | ALGN | Fri, Dec 1, 2023 | 213.30 | 225.19 | 212.41 | 220.45 | 5746 | NASDAQ | ALGN | Thu, Nov 30, 2023 | 216.73 | 217.85 | 211.63 | 213.80 | 5745 | NASDAQ | ALGN | Wed, Nov 29, 2023 | 217.00 | 221.65 | 215.94 | 216.48 | 5744 | NASDAQ | ALGN | Tue, Nov 28, 2023 | 216.75 | 216.75 | 212.56 | 214.14 | 5743 | NASDAQ | ALGN | Mon, Nov 27, 2023 | 217.73 | 218.46 | 215.74 | 216.75 | 5742 | NASDAQ | ALGN | Fri, Nov 24, 2023 | 218.11 | 220.95 | 217.79 | 219.48 | 5741 | NASDAQ | ALGN | Wed, Nov 22, 2023 | 217.37 | 221.17 | 216.75 | 217.29 | 5740 | NASDAQ | ALGN | Tue, Nov 21, 2023 | 215.55 | 216.08 | 213.08 | 215.30 | 5739 | NASDAQ | ALGN | Mon, Nov 20, 2023 | 206.10 | 216.03 | 206.10 | 215.24 | 5738 | NASDAQ | ALGN | Fri, Nov 17, 2023 | 204.51 | 208.13 | 203.00 | 206.64 | 5737 | NASDAQ | ALGN | Thu, Nov 16, 2023 | 209.61 | 212.98 | 202.60 | 203.12 | 5736 | NASDAQ | ALGN | Wed, Nov 15, 2023 | 203.50 | 212.96 | 203.50 | 205.06 | 5735 | NASDAQ | ALGN | Tue, Nov 14, 2023 | 199.79 | 205.70 | 198.84 | 202.72 | 5734 | NASDAQ | ALGN | Mon, Nov 13, 2023 | 191.20 | 193.46 | 190.75 | 191.22 | 5733 | NASDAQ | ALGN | Fri, Nov 10, 2023 | 189.81 | 192.69 | 186.01 | 192.13 | 5732 | NASDAQ | ALGN | Thu, Nov 9, 2023 | 194.97 | 194.97 | 186.12 | 187.34 | 5731 | NASDAQ | ALGN | Wed, Nov 8, 2023 | 197.67 | 197.67 | 192.04 | 193.62 | 5730 | NASDAQ | ALGN | Tue, Nov 7, 2023 | 198.07 | 199.65 | 196.02 | 197.52 | 5729 | NASDAQ | ALGN | Mon, Nov 6, 2023 | 202.00 | 202.64 | 197.10 | 197.77 | 5728 | NASDAQ | ALGN | Fri, Nov 3, 2023 | 194.60 | 202.97 | 194.60 | 197.44 | 5727 | NASDAQ | ALGN | Thu, Nov 2, 2023 | 188.95 | 193.51 | 184.89 | 192.32 | 5726 | NASDAQ | ALGN | Wed, Nov 1, 2023 | 183.74 | 184.06 | 178.52 | 183.21 | 5725 | NASDAQ | ALGN | Tue, Oct 31, 2023 | 188.09 | 189.54 | 183.50 | 184.59 | 5724 | NASDAQ | ALGN | Mon, Oct 30, 2023 | 192.66 | 194.12 | 176.34 | 186.74 | 5723 | NASDAQ | ALGN | Fri, Oct 27, 2023 | 192.51 | 197.47 | 185.55 | 190.94 | 5722 | NASDAQ | ALGN | Thu, Oct 26, 2023 | 196.90 | 201.06 | 187.21 | 190.56 | 5721 | NASDAQ | ALGN | Wed, Oct 25, 2023 | 263.00 | 264.45 | 252.33 | 253.69 | 5720 | NASDAQ | ALGN | Tue, Oct 24, 2023 | 264.64 | 267.93 | 262.75 | 265.46 | 5719 | NASDAQ | ALGN | Mon, Oct 23, 2023 | 266.68 | 269.62 | 265.25 | 265.72 | 5718 | NASDAQ | ALGN | Fri, Oct 20, 2023 | 271.27 | 272.90 | 266.67 | 269.88 | 5717 | NASDAQ | ALGN | Thu, Oct 19, 2023 | 271.57 | 275.29 | 268.96 | 270.29 | 5716 | NASDAQ | ALGN | Wed, Oct 18, 2023 | 272.43 | 274.73 | 269.09 | 272.40 | 5715 | NASDAQ | ALGN | Tue, Oct 17, 2023 | 270.93 | 278.38 | 270.93 | 276.76 | 5714 | NASDAQ | ALGN | Mon, Oct 16, 2023 | 269.97 | 275.39 | 264.64 | 272.36 | 5713 | NASDAQ | ALGN | Fri, Oct 13, 2023 | 268.00 | 270.73 | 263.56 | 265.99 | 5712 | NASDAQ | ALGN | Thu, Oct 12, 2023 | 278.00 | 278.20 | 265.62 | 268.00 | 5711 | NASDAQ | ALGN | Wed, Oct 11, 2023 | 285.04 | 286.94 | 276.09 | 277.52 | 5710 | NASDAQ | ALGN | Tue, Oct 10, 2023 | 285.03 | 291.69 | 282.48 | 286.51 | 5709 | NASDAQ | ALGN | Mon, Oct 9, 2023 | 280.81 | 284.77 | 277.00 | 283.94 | 5708 | NASDAQ | ALGN | Fri, Oct 6, 2023 | 276.28 | 287.68 | 275.37 | 284.64 | 5707 | NASDAQ | ALGN | Thu, Oct 5, 2023 | 291.70 | 292.00 | 276.49 | 280.18 | 5706 | NASDAQ | ALGN | Wed, Oct 4, 2023 | 292.03 | 292.44 | 286.47 | 291.70 | 5705 | NASDAQ | ALGN | Tue, Oct 3, 2023 | 296.05 | 301.77 | 288.41 | 290.61 | 5704 | NASDAQ | ALGN | Mon, Oct 2, 2023 | 302.97 | 305.36 | 296.03 | 299.76 | 5703 | NASDAQ | ALGN | Fri, Sep 29, 2023 | 309.37 | 311.79 | 303.57 | 305.32 | 5702 | NASDAQ | ALGN | Thu, Sep 28, 2023 | 300.91 | 310.75 | 300.91 | 307.51 | 5701 | NASDAQ | ALGN | Wed, Sep 27, 2023 | 300.00 | 303.93 | 297.12 | 301.68 | 5700 | NASDAQ | ALGN | Tue, Sep 26, 2023 | 296.31 | 300.99 | 295.33 | 299.01 | 5699 | NASDAQ | ALGN | Mon, Sep 25, 2023 | 298.08 | 298.55 | 293.42 | 298.02 | 5698 | NASDAQ | ALGN | Fri, Sep 22, 2023 | 301.71 | 303.96 | 297.09 | 298.56 | 5697 | NASDAQ | ALGN | Thu, Sep 21, 2023 | 305.70 | 305.70 | 298.87 | 300.28 | 5696 | NASDAQ | ALGN | Wed, Sep 20, 2023 | 318.21 | 319.00 | 309.44 | 309.50 | 5695 | NASDAQ | ALGN | Tue, Sep 19, 2023 | 324.30 | 326.07 | 316.68 | 318.00 | 5694 | NASDAQ | ALGN | Mon, Sep 18, 2023 | 331.13 | 332.49 | 325.08 | 325.32 | 5693 | NASDAQ | ALGN | Fri, Sep 15, 2023 | 332.42 | 335.73 | 326.49 | 332.09 | 5692 | NASDAQ | ALGN | Thu, Sep 14, 2023 | 329.38 | 334.43 | 325.07 | 332.84 | 5691 | NASDAQ | ALGN | Wed, Sep 13, 2023 | 320.79 | 324.54 | 316.32 | 322.41 | 5690 | NASDAQ | ALGN | Tue, Sep 12, 2023 | 330.97 | 334.24 | 321.66 | 322.29 | 5689 | NASDAQ | ALGN | Mon, Sep 11, 2023 | 335.18 | 335.18 | 335.18 | 335.18 | 5688 | NASDAQ | ALGN | Fri, Sep 8, 2023 | 339.61 | 342.00 | 330.36 | 332.26 | 5687 | NASDAQ | ALGN | Thu, Sep 7, 2023 | 367.71 | 367.71 | 339.77 | 340.93 | 5686 | NASDAQ | ALGN | Wed, Sep 6, 2023 | 367.86 | 370.41 | 365.25 | 369.70 | 5685 | NASDAQ | ALGN | Tue, Sep 5, 2023 | 374.90 | 374.90 | 367.00 | 368.63 | 5684 | NASDAQ | ALGN | Fri, Sep 1, 2023 | 375.14 | 375.68 | 369.01 | 374.90 | 5683 | NASDAQ | ALGN | Thu, Aug 31, 2023 | 372.50 | 374.46 | 369.71 | 370.14 | 5682 | NASDAQ | ALGN | Wed, Aug 30, 2023 | 371.11 | 374.87 | 369.61 | 370.86 | 5681 | NASDAQ | ALGN | Tue, Aug 29, 2023 | 358.15 | 368.00 | 356.91 | 367.62 | 5680 | NASDAQ | ALGN | Mon, Aug 28, 2023 | 360.49 | 360.73 | 356.45 | 358.66 | 5679 | NASDAQ | ALGN | Fri, Aug 25, 2023 | 351.00 | 357.02 | 348.44 | 356.35 | 5678 | NASDAQ | ALGN | Thu, Aug 24, 2023 | 366.72 | 369.50 | 350.53 | 350.71 | 5677 | NASDAQ | ALGN | Wed, Aug 23, 2023 | 353.55 | 362.87 | 353.55 | 359.48 | 5676 | NASDAQ | ALGN | Tue, Aug 22, 2023 | 342.52 | 353.50 | 342.00 | 351.63 | 5675 | NASDAQ | ALGN | Mon, Aug 21, 2023 | 351.00 | 351.94 | 342.28 | 342.59 | 5674 | NASDAQ | ALGN | Fri, Aug 18, 2023 | 345.49 | 352.43 | 344.25 | 350.36 | 5673 | NASDAQ | ALGN | Thu, Aug 17, 2023 | 360.61 | 360.61 | 348.02 | 349.18 | 5672 | NASDAQ | ALGN | Wed, Aug 16, 2023 | 359.57 | 361.57 | 357.73 | 358.54 | 5671 | NASDAQ | ALGN | Tue, Aug 15, 2023 | 359.84 | 364.70 | 356.21 | 361.05 | 5670 | NASDAQ | ALGN | Mon, Aug 14, 2023 | 351.33 | 360.67 | 349.65 | 360.49 | 5669 | NASDAQ | ALGN | Fri, Aug 11, 2023 | 343.90 | 354.56 | 342.20 | 352.88 | 5668 | NASDAQ | ALGN | Thu, Aug 10, 2023 | 354.35 | 357.14 | 345.88 | 347.23 | 5667 | NASDAQ | ALGN | Wed, Aug 9, 2023 | 358.73 | 359.88 | 352.67 | 352.80 | 5666 | NASDAQ | ALGN | Tue, Aug 8, 2023 | 357.57 | 359.13 | 353.53 | 357.75 | 5665 | NASDAQ | ALGN | Mon, Aug 7, 2023 | 361.86 | 364.61 | 358.30 | 361.25 | 5664 | NASDAQ | ALGN | Fri, Aug 4, 2023 | 366.99 | 369.71 | 359.72 | 361.44 | 5663 | NASDAQ | ALGN | Thu, Aug 3, 2023 | 363.22 | 367.40 | 362.19 | 366.24 | 5662 | NASDAQ | ALGN | Wed, Aug 2, 2023 | 372.00 | 372.65 | 363.30 | 367.40 | 5661 | NASDAQ | ALGN | Tue, Aug 1, 2023 | 374.68 | 379.73 | 372.61 | 376.62 | 5660 | NASDAQ | ALGN | Mon, Jul 31, 2023 | 384.90 | 384.90 | 376.01 | 377.89 | 5659 | NASDAQ | ALGN | Fri, Jul 28, 2023 | 396.37 | 397.00 | 378.22 | 381.90 | 5658 | NASDAQ | ALGN | Thu, Jul 27, 2023 | 403.83 | 413.20 | 379.52 | 385.31 | 5657 | NASDAQ | ALGN | Wed, Jul 26, 2023 | 329.59 | 340.48 | 328.06 | 339.85 | 5656 | NASDAQ | ALGN | Tue, Jul 25, 2023 | 335.51 | 337.19 | 324.89 | 332.14 | 5655 | NASDAQ | ALGN | Mon, Jul 24, 2023 | 337.25 | 338.37 | 332.99 | 337.01 | 5654 | NASDAQ | ALGN | Fri, Jul 21, 2023 | 332.83 | 340.03 | 331.55 | 337.37 | 5653 | NASDAQ | ALGN | Thu, Jul 20, 2023 | 340.76 | 340.76 | 330.74 | 330.99 | 5652 | NASDAQ | ALGN | Wed, Jul 19, 2023 | 355.00 | 355.11 | 340.33 | 342.58 | 5651 | NASDAQ | ALGN | Tue, Jul 18, 2023 | 359.00 | 361.03 | 353.62 | 360.62 | 5650 | NASDAQ | ALGN | Mon, Jul 17, 2023 | 362.53 | 371.99 | 360.39 | 370.36 | 5649 | NASDAQ | ALGN | Fri, Jul 14, 2023 | 367.51 | 371.39 | 366.15 | 366.88 | 5648 | NASDAQ | ALGN | Thu, Jul 13, 2023 | 358.98 | 368.06 | 357.56 | 367.56 | 5647 | NASDAQ | ALGN | Wed, Jul 12, 2023 | 355.31 | 358.85 | 349.02 | 357.60 | 5646 | NASDAQ | ALGN | Tue, Jul 11, 2023 | 343.90 | 351.08 | 343.71 | 350.10 | 5645 | NASDAQ | ALGN | Mon, Jul 10, 2023 | 330.89 | 343.82 | 330.89 | 343.70 | 5644 | NASDAQ | ALGN | Fri, Jul 7, 2023 | 331.11 | 335.61 | 328.71 | 329.54 | 5643 | NASDAQ | ALGN | Thu, Jul 6, 2023 | 330.08 | 331.76 | 323.53 | 330.92 | 5642 | NASDAQ | ALGN | Wed, Jul 5, 2023 | 339.73 | 339.73 | 327.19 | 336.82 | 5641 | NASDAQ | ALGN | Mon, Jul 3, 2023 | 350.70 | 351.38 | 340.00 | 344.59 | 5640 | NASDAQ | ALGN | Fri, Jun 30, 2023 | 344.73 | 356.24 | 344.30 | 353.64 | 5639 | NASDAQ | ALGN | Thu, Jun 29, 2023 | 345.00 | 349.67 | 337.76 | 341.79 | 5638 | NASDAQ | ALGN | Wed, Jun 28, 2023 | 341.30 | 348.86 | 340.19 | 345.07 | 5637 | NASDAQ | ALGN | Tue, Jun 27, 2023 | 333.29 | 341.92 | 328.99 | 340.69 | 5636 | NASDAQ | ALGN | Mon, Jun 26, 2023 | 328.01 | 335.74 | 327.67 | 331.46 | 5635 | NASDAQ | ALGN | Fri, Jun 23, 2023 | 329.03 | 331.06 | 325.00 | 328.83 | 5634 | NASDAQ | ALGN | Thu, Jun 22, 2023 | 331.10 | 335.10 | 326.41 | 334.40 | 5633 | NASDAQ | ALGN | Wed, Jun 21, 2023 | 330.81 | 334.15 | 328.03 | 330.71 | 5632 | NASDAQ | ALGN | Tue, Jun 20, 2023 | 327.02 | 333.05 | 320.53 | 331.43 | 5631 | NASDAQ | ALGN | Fri, Jun 16, 2023 | 334.95 | 335.87 | 326.52 | 330.29 | 5630 | NASDAQ | ALGN | Thu, Jun 15, 2023 | 322.04 | 334.57 | 321.28 | 333.19 | 5629 | NASDAQ | ALGN | Wed, Jun 14, 2023 | 324.11 | 328.49 | 317.72 | 322.46 | 5628 | NASDAQ | ALGN | Tue, Jun 13, 2023 | 315.00 | 328.99 | 313.20 | 322.02 | 5627 | NASDAQ | ALGN | Mon, Jun 12, 2023 | 304.81 | 311.72 | 301.89 | 311.29 | 5626 | NASDAQ | ALGN | Fri, Jun 9, 2023 | 304.60 | 309.66 | 301.99 | 304.44 | 5625 | NASDAQ | ALGN | Thu, Jun 8, 2023 | 300.29 | 308.32 | 300.29 | 306.76 | 5624 | NASDAQ | ALGN | Wed, Jun 7, 2023 | 306.07 | 311.74 | 300.73 | 301.73 | 5623 | NASDAQ | ALGN | Tue, Jun 6, 2023 | 303.72 | 308.65 | 301.97 | 304.68 | 5622 | NASDAQ | ALGN | Mon, Jun 5, 2023 | 302.00 | 306.85 | 301.48 | 305.15 | 5621 | NASDAQ | ALGN | Fri, Jun 2, 2023 | 299.74 | 302.68 | 296.02 | 302.00 | 5620 | NASDAQ | ALGN | Thu, Jun 1, 2023 | 283.65 | 298.64 | 282.29 | 297.20 | 5619 | NASDAQ | ALGN | Wed, May 31, 2023 | 281.86 | 283.33 | 273.47 | 282.66 | 5618 | NASDAQ | ALGN | Tue, May 30, 2023 | 283.79 | 287.06 | 281.86 | 284.95 | 5617 | NASDAQ | ALGN | Fri, May 26, 2023 | 280.82 | 286.98 | 279.85 | 285.39 | 5616 | NASDAQ | ALGN | Thu, May 25, 2023 | 282.96 | 284.89 | 277.76 | 280.08 | 5615 | NASDAQ | ALGN | Wed, May 24, 2023 | 281.45 | 284.02 | 278.04 | 281.23 | 5614 | NASDAQ | ALGN | Tue, May 23, 2023 | 295.90 | 303.10 | 281.29 | 282.55 | 5613 | NASDAQ | ALGN | Mon, May 22, 2023 | 291.04 | 304.36 | 290.22 | 300.83 | 5612 | NASDAQ | ALGN | Fri, May 19, 2023 | 293.39 | 293.94 | 287.73 | 290.99 | 5611 | NASDAQ | ALGN | Thu, May 18, 2023 | 290.92 | 296.20 | 287.69 | 293.42 | 5610 | NASDAQ | ALGN | Wed, May 17, 2023 | 293.76 | 293.97 | 285.19 | 291.36 | 5609 | NASDAQ | ALGN | Tue, May 16, 2023 | 294.15 | 295.34 | 289.87 | 292.30 | 5608 | NASDAQ | ALGN | Mon, May 15, 2023 | 293.00 | 300.37 | 291.10 | 297.28 | 5607 | NASDAQ | ALGN | Fri, May 12, 2023 | 296.78 | 297.80 | 291.30 | 293.71 | 5606 | NASDAQ | ALGN | Thu, May 11, 2023 | 303.43 | 303.60 | 291.79 | 296.08 | 5605 | NASDAQ | ALGN | Wed, May 10, 2023 | 307.00 | 308.36 | 302.42 | 305.26 | 5604 | NASDAQ | ALGN | Tue, May 9, 2023 | 303.01 | 304.57 | 298.51 | 302.74 | 5603 | NASDAQ | ALGN | Mon, May 8, 2023 | 311.80 | 312.29 | 302.77 | 306.07 | 5602 | NASDAQ | ALGN | Fri, May 5, 2023 | 306.69 | 314.25 | 306.26 | 313.64 | 5601 | NASDAQ | ALGN | Thu, May 4, 2023 | 301.20 | 304.30 | 297.83 | 304.11 | 5600 | NASDAQ | ALGN | Wed, May 3, 2023 | 306.85 | 310.51 | 302.38 | 303.11 | 5599 | NASDAQ | ALGN | Tue, May 2, 2023 | 317.15 | 319.56 | 305.40 | 306.84 | 5598 | NASDAQ | ALGN | Mon, May 1, 2023 | 324.89 | 326.51 | 314.52 | 317.33 | 5597 | NASDAQ | ALGN | Fri, Apr 28, 2023 | 317.02 | 326.31 | 316.73 | 325.30 | 5596 | NASDAQ | ALGN | Thu, Apr 27, 2023 | 321.95 | 326.55 | 309.00 | 317.73 | 5595 | NASDAQ | ALGN | Wed, Apr 26, 2023 | 351.83 | 355.21 | 348.12 | 354.55 | 5594 | NASDAQ | ALGN | Tue, Apr 25, 2023 | 359.83 | 362.23 | 351.06 | 351.52 | 5593 | NASDAQ | ALGN | Mon, Apr 24, 2023 | 355.14 | 363.27 | 352.33 | 363.06 | 5592 | NASDAQ | ALGN | Fri, Apr 21, 2023 | 353.64 | 356.48 | 351.07 | 355.14 | 5591 | NASDAQ | ALGN | Thu, Apr 20, 2023 | 351.94 | 357.98 | 351.59 | 352.39 | 5590 | NASDAQ | ALGN | Wed, Apr 19, 2023 | 345.09 | 357.87 | 345.09 | 356.37 | 5589 | NASDAQ | ALGN | Tue, Apr 18, 2023 | 353.37 | 355.87 | 346.09 | 348.05 | 5588 | NASDAQ | ALGN | Mon, Apr 17, 2023 | 343.17 | 348.14 | 341.71 | 347.69 | 5587 | NASDAQ | ALGN | Fri, Apr 14, 2023 | 341.67 | 346.48 | 337.73 | 342.27 | 5586 | NASDAQ | ALGN | Thu, Apr 13, 2023 | 336.68 | 341.57 | 334.63 | 341.35 | 5585 | NASDAQ | ALGN | Wed, Apr 12, 2023 | 342.38 | 343.22 | 331.73 | 332.25 | 5584 | NASDAQ | ALGN | Tue, Apr 11, 2023 | 331.47 | 342.20 | 331.47 | 339.00 | 5583 | NASDAQ | ALGN | Mon, Apr 10, 2023 | 319.58 | 330.80 | 316.62 | 330.66 | 5582 | NASDAQ | ALGN | Thu, Apr 6, 2023 | 315.67 | 324.63 | 312.47 | 323.14 | 5581 | NASDAQ | ALGN | Wed, Apr 5, 2023 | 324.44 | 324.44 | 314.16 | 317.02 | 5580 | NASDAQ | ALGN | Tue, Apr 4, 2023 | 329.50 | 333.01 | 325.08 | 326.85 | 5579 | NASDAQ | ALGN | Mon, Apr 3, 2023 | 333.29 | 335.08 | 324.30 | 327.35 | 5578 | NASDAQ | ALGN | Fri, Mar 31, 2023 | 315.04 | 335.15 | 315.00 | 334.14 | 5577 | NASDAQ | ALGN | Thu, Mar 30, 2023 | 311.19 | 314.55 | 309.51 | 311.85 | 5576 | NASDAQ | ALGN | Wed, Mar 29, 2023 | 309.37 | 310.05 | 303.71 | 306.21 | 5575 | NASDAQ | ALGN | Tue, Mar 28, 2023 | 306.43 | 309.87 | 304.31 | 305.29 | 5574 | NASDAQ | ALGN | Mon, Mar 27, 2023 | 308.25 | 311.92 | 301.86 | 305.95 | 5573 | NASDAQ | ALGN | Fri, Mar 24, 2023 | 309.70 | 311.31 | 300.86 | 306.70 | 5572 | NASDAQ | ALGN | Thu, Mar 23, 2023 | 314.06 | 319.54 | 307.35 | 311.48 | 5571 | NASDAQ | ALGN | Wed, Mar 22, 2023 | 327.00 | 327.00 | 312.08 | 312.31 | 5570 | NASDAQ | ALGN | Tue, Mar 21, 2023 | 319.98 | 330.71 | 318.01 | 327.64 | 5569 | NASDAQ | ALGN | Mon, Mar 20, 2023 | 320.19 | 321.63 | 314.45 | 316.36 | 5568 | NASDAQ | ALGN | Fri, Mar 17, 2023 | 325.09 | 326.49 | 317.67 | 320.87 | 5567 | NASDAQ | ALGN | Thu, Mar 16, 2023 | 317.69 | 327.98 | 314.56 | 326.40 | 5566 | NASDAQ | ALGN | Wed, Mar 15, 2023 | 313.04 | 318.61 | 307.65 | 318.17 | 5565 | NASDAQ | ALGN | Tue, Mar 14, 2023 | 322.17 | 326.79 | 316.12 | 320.76 | 5564 | NASDAQ | ALGN | Mon, Mar 13, 2023 | 311.41 | 322.88 | 307.37 | 315.41 | 5563 | NASDAQ | ALGN | Fri, Mar 10, 2023 | 321.97 | 322.50 | 306.71 | 312.79 | 5562 | NASDAQ | ALGN | Thu, Mar 9, 2023 | 333.12 | 336.63 | 321.00 | 321.64 | 5561 | NASDAQ | ALGN | Wed, Mar 8, 2023 | 333.59 | 334.81 | 327.90 | 332.26 | 5560 | NASDAQ | ALGN | Tue, Mar 7, 2023 | 337.02 | 341.81 | 333.41 | 334.78 | 5559 | NASDAQ | ALGN | Mon, Mar 6, 2023 | 337.40 | 357.00 | 334.95 | 335.80 | 5558 | NASDAQ | ALGN | Fri, Mar 3, 2023 | 314.53 | 335.67 | 314.53 | 334.56 | 5557 | NASDAQ | ALGN | Thu, Mar 2, 2023 | 303.22 | 313.62 | 303.17 | 313.21 | 5556 | NASDAQ | ALGN | Wed, Mar 1, 2023 | 307.50 | 310.63 | 302.20 | 308.53 | 5555 | NASDAQ | ALGN | Tue, Feb 28, 2023 | 303.55 | 313.11 | 303.55 | 309.50 | 5554 | NASDAQ | ALGN | Mon, Feb 27, 2023 | 309.30 | 311.16 | 303.15 | 304.64 | 5553 | NASDAQ | ALGN | Fri, Feb 24, 2023 | 297.47 | 306.78 | 297.26 | 306.28 | 5552 | NASDAQ | ALGN | Thu, Feb 23, 2023 | 304.34 | 306.72 | 297.51 | 305.46 | 5551 | NASDAQ | ALGN | Wed, Feb 22, 2023 | 303.81 | 308.43 | 300.65 | 302.72 | 5550 | NASDAQ | ALGN | Tue, Feb 21, 2023 | 313.00 | 315.35 | 303.75 | 304.00 | 5549 | NASDAQ | ALGN | Fri, Feb 17, 2023 | 322.16 | 322.19 | 312.61 | 316.71 | 5548 | NASDAQ | ALGN | Thu, Feb 16, 2023 | 331.68 | 336.51 | 323.73 | 326.17 | 5547 | NASDAQ | ALGN | Wed, Feb 15, 2023 | 327.98 | 339.10 | 327.70 | 338.39 | 5546 | NASDAQ | ALGN | Tue, Feb 14, 2023 | 324.39 | 334.28 | 320.12 | 331.52 | 5545 | NASDAQ | ALGN | Mon, Feb 13, 2023 | 319.25 | 325.54 | 315.45 | 325.26 | 5544 | NASDAQ | ALGN | Fri, Feb 10, 2023 | 321.38 | 322.68 | 310.38 | 315.81 | 5543 | NASDAQ | ALGN | Thu, Feb 9, 2023 | 336.48 | 337.57 | 320.45 | 321.38 | 5542 | NASDAQ | ALGN | Wed, Feb 8, 2023 | 341.64 | 343.55 | 333.00 | 334.83 | 5541 | NASDAQ | ALGN | Tue, Feb 7, 2023 | 341.03 | 346.75 | 332.80 | 345.07 | 5540 | NASDAQ | ALGN | Mon, Feb 6, 2023 | 348.00 | 364.76 | 341.82 | 342.46 | 5539 | NASDAQ | ALGN | Fri, Feb 3, 2023 | 350.41 | 352.84 | 341.00 | 343.10 | 5538 | NASDAQ | ALGN | Thu, Feb 2, 2023 | 336.50 | 368.87 | 332.60 | 359.88 | 5537 | NASDAQ | ALGN | Wed, Feb 1, 2023 | 270.29 | 284.14 | 268.94 | 282.53 | 5536 | NASDAQ | ALGN | Tue, Jan 31, 2023 | 265.26 | 269.78 | 265.00 | 269.73 | 5535 | NASDAQ | ALGN | Mon, Jan 30, 2023 | 263.50 | 268.55 | 261.50 | 265.82 | 5534 | NASDAQ | ALGN | Fri, Jan 27, 2023 | 260.00 | 270.00 | 259.02 | 269.20 | 5533 | NASDAQ | ALGN | Thu, Jan 26, 2023 | 255.86 | 263.10 | 254.99 | 262.95 | 5532 | NASDAQ | ALGN | Wed, Jan 25, 2023 | 246.82 | 252.47 | 245.64 | 252.08 | 5531 | NASDAQ | ALGN | Tue, Jan 24, 2023 | 250.08 | 258.31 | 250.08 | 252.63 | 5530 | NASDAQ | ALGN | Mon, Jan 23, 2023 | 246.12 | 253.85 | 244.84 | 251.38 | 5529 | NASDAQ | ALGN | Fri, Jan 20, 2023 | 237.78 | 243.30 | 235.84 | 243.01 | 5528 | NASDAQ | ALGN | Thu, Jan 19, 2023 | 242.07 | 242.72 | 230.18 | 236.30 | 5527 | NASDAQ | ALGN | Wed, Jan 18, 2023 | 247.28 | 254.71 | 246.05 | 246.80 | 5526 | NASDAQ | ALGN | Tue, Jan 17, 2023 | 238.78 | 246.44 | 237.88 | 246.04 | 5525 | NASDAQ | ALGN | Fri, Jan 13, 2023 | 233.17 | 240.15 | 232.28 | 239.76 | 5524 | NASDAQ | ALGN | Thu, Jan 12, 2023 | 234.16 | 237.24 | 228.34 | 235.58 | 5523 | NASDAQ | ALGN | Wed, Jan 11, 2023 | 234.00 | 238.15 | 231.21 | 234.16 | 5522 | NASDAQ | ALGN | Tue, Jan 10, 2023 | 227.17 | 233.45 | 227.17 | 232.25 | 5521 | NASDAQ | ALGN | Mon, Jan 9, 2023 | 224.03 | 230.35 | 222.08 | 227.67 | 5520 | NASDAQ | ALGN | Fri, Jan 6, 2023 | 222.10 | 222.99 | 212.87 | 220.77 | 5519 | NASDAQ | ALGN | Thu, Jan 5, 2023 | 221.89 | 222.92 | 216.90 | 219.82 | 5518 | NASDAQ | ALGN | Wed, Jan 4, 2023 | 217.26 | 225.23 | 215.14 | 224.63 | 5517 | NASDAQ | ALGN | Tue, Jan 3, 2023 | 215.46 | 219.53 | 208.29 | 212.28 | 5516 | NASDAQ | ALGN | Fri, Dec 30, 2022 | 208.10 | 211.31 | 206.71 | 210.90 | 5515 | NASDAQ | ALGN | Thu, Dec 29, 2022 | 203.61 | 214.20 | 201.61 | 212.14 | 5514 | NASDAQ | ALGN | Wed, Dec 28, 2022 | 204.80 | 206.53 | 200.39 | 201.58 | 5513 | NASDAQ | ALGN | Tue, Dec 27, 2022 | 203.23 | 207.12 | 200.16 | 204.59 | 5512 | NASDAQ | ALGN | Fri, Dec 23, 2022 | 201.58 | 203.88 | 198.25 | 203.67 | 5511 | NASDAQ | ALGN | Thu, Dec 22, 2022 | 202.28 | 203.63 | 196.88 | 203.49 | 5510 | NASDAQ | ALGN | Wed, Dec 21, 2022 | 201.04 | 204.39 | 200.16 | 204.28 | 5509 | NASDAQ | ALGN | Tue, Dec 20, 2022 | 196.30 | 203.64 | 195.86 | 200.75 | 5508 | NASDAQ | ALGN | Mon, Dec 19, 2022 | 197.90 | 202.81 | 197.81 | 198.76 | 5507 | NASDAQ | ALGN | Fri, Dec 16, 2022 | 198.25 | 200.00 | 193.00 | 198.21 | 5506 | NASDAQ | ALGN | Thu, Dec 15, 2022 | 191.74 | 216.04 | 186.74 | 201.97 | 5505 | NASDAQ | ALGN | Wed, Dec 14, 2022 | 197.32 | 202.00 | 193.52 | 195.81 | 5504 | NASDAQ | ALGN | Tue, Dec 13, 2022 | 205.81 | 207.49 | 195.89 | 198.58 | 5503 | NASDAQ | ALGN | Mon, Dec 12, 2022 | 190.95 | 196.44 | 188.40 | 195.01 | 5502 | NASDAQ | ALGN | Fri, Dec 9, 2022 | 190.52 | 193.54 | 188.48 | 188.81 | 5501 | NASDAQ | ALGN | Thu, Dec 8, 2022 | 188.53 | 192.02 | 186.05 | 190.46 | 5500 | NASDAQ | ALGN | Wed, Dec 7, 2022 | 185.67 | 189.09 | 184.66 | 187.33 | 5499 | NASDAQ | ALGN | Tue, Dec 6, 2022 | 186.76 | 187.23 | 183.26 | 186.04 | 5498 | NASDAQ | ALGN | Mon, Dec 5, 2022 | 195.00 | 195.84 | 187.54 | 187.91 | 5497 | NASDAQ | ALGN | Fri, Dec 2, 2022 | 197.03 | 200.00 | 195.93 | 198.41 | 5496 | NASDAQ | ALGN | Thu, Dec 1, 2022 | 197.59 | 202.24 | 195.70 | 201.77 | 5495 | NASDAQ | ALGN | Wed, Nov 30, 2022 | 192.39 | 196.74 | 184.69 | 196.66 | 5494 | NASDAQ | ALGN | Tue, Nov 29, 2022 | 188.86 | 194.05 | 187.36 | 191.83 | 5493 | NASDAQ | ALGN | Mon, Nov 28, 2022 | 194.69 | 197.86 | 189.07 | 189.78 | 5492 | NASDAQ | ALGN | Fri, Nov 25, 2022 | 194.82 | 196.28 | 190.99 | 194.67 | 5491 | NASDAQ | ALGN | Wed, Nov 23, 2022 | 192.33 | 199.17 | 191.04 | 196.28 | 5490 | NASDAQ | ALGN | Tue, Nov 22, 2022 | 192.90 | 192.90 | 188.01 | 191.39 | 5489 | NASDAQ | ALGN | Mon, Nov 21, 2022 | 190.38 | 194.25 | 189.00 | 191.63 | 5488 | NASDAQ | ALGN | Fri, Nov 18, 2022 | 200.00 | 201.15 | 191.74 | 193.56 | 5487 | NASDAQ | ALGN | Thu, Nov 17, 2022 | 195.58 | 196.63 | 191.71 | 194.96 | 5486 | NASDAQ | ALGN | Wed, Nov 16, 2022 | 212.84 | 212.90 | 200.18 | 201.39 | 5485 | NASDAQ | ALGN | Tue, Nov 15, 2022 | 215.55 | 220.30 | 211.87 | 212.92 | 5484 | NASDAQ | ALGN | Mon, Nov 14, 2022 | 214.74 | 214.99 | 210.06 | 210.33 | 5483 | NASDAQ | ALGN | Fri, Nov 11, 2022 | 197.80 | 221.62 | 195.95 | 218.98 | 5482 | NASDAQ | ALGN | Thu, Nov 10, 2022 | 186.96 | 196.71 | 186.50 | 196.48 | 5481 | NASDAQ | ALGN | Wed, Nov 9, 2022 | 179.72 | 179.72 | 174.13 | 174.58 | 5480 | NASDAQ | ALGN | Tue, Nov 8, 2022 | 181.40 | 185.48 | 175.34 | 180.40 | 5479 | NASDAQ | ALGN | Mon, Nov 7, 2022 | 182.80 | 184.35 | 178.93 | 181.37 | 5478 | NASDAQ | ALGN | Fri, Nov 4, 2022 | 182.54 | 182.61 | 175.93 | 180.93 | 5477 | NASDAQ | ALGN | Thu, Nov 3, 2022 | 176.39 | 177.34 | 172.05 | 175.83 | 5476 | NASDAQ | ALGN | Wed, Nov 2, 2022 | 192.44 | 193.27 | 178.91 | 179.08 | 5475 | NASDAQ | ALGN | Tue, Nov 1, 2022 | 197.55 | 202.42 | 192.53 | 193.06 | 5474 | NASDAQ | ALGN | Mon, Oct 31, 2022 | 190.00 | 201.56 | 190.00 | 194.30 | 5473 | NASDAQ | ALGN | Fri, Oct 28, 2022 | 180.23 | 190.45 | 179.25 | 188.62 | 5472 | NASDAQ | ALGN | Thu, Oct 27, 2022 | 188.89 | 188.89 | 176.00 | 181.53 | 5471 | NASDAQ | ALGN | Wed, Oct 26, 2022 | 219.17 | 229.56 | 217.98 | 221.64 | 5470 | NASDAQ | ALGN | Tue, Oct 25, 2022 | 212.39 | 221.72 | 212.39 | 217.98 | 5469 | NASDAQ | ALGN | Mon, Oct 24, 2022 | 207.97 | 211.51 | 204.87 | 211.39 | 5468 | NASDAQ | ALGN | Fri, Oct 21, 2022 | 196.58 | 208.45 | 192.63 | 207.67 | 5467 | NASDAQ | ALGN | Thu, Oct 20, 2022 | 204.01 | 208.06 | 197.78 | 198.28 | 5466 | NASDAQ | ALGN | Wed, Oct 19, 2022 | 207.17 | 210.07 | 203.57 | 204.98 | 5465 | NASDAQ | ALGN | Tue, Oct 18, 2022 | 219.47 | 222.37 | 207.99 | 210.00 | 5464 | NASDAQ | ALGN | Mon, Oct 17, 2022 | 205.61 | 213.49 | 203.26 | 211.44 | 5463 | NASDAQ | ALGN | Fri, Oct 14, 2022 | 216.79 | 217.73 | 201.09 | 201.63 | 5462 | NASDAQ | ALGN | Thu, Oct 13, 2022 | 200.02 | 214.37 | 197.87 | 212.31 | 5461 | NASDAQ | ALGN | Wed, Oct 12, 2022 | 207.98 | 209.58 | 203.21 | 208.05 | 5460 | NASDAQ | ALGN | Tue, Oct 11, 2022 | 206.77 | 213.10 | 202.01 | 208.45 | 5459 | NASDAQ | ALGN | Mon, Oct 10, 2022 | 213.17 | 213.79 | 205.00 | 207.38 | 5458 | NASDAQ | ALGN | Fri, Oct 7, 2022 | 217.46 | 220.09 | 210.39 | 211.58 | 5457 | NASDAQ | ALGN | Thu, Oct 6, 2022 | 229.16 | 233.64 | 222.05 | 222.36 | 5456 | NASDAQ | ALGN | Wed, Oct 5, 2022 | 225.81 | 230.45 | 221.45 | 228.81 | 5455 | NASDAQ | ALGN | Tue, Oct 4, 2022 | 221.67 | 230.27 | 220.83 | 229.91 | 5454 | NASDAQ | ALGN | Mon, Oct 3, 2022 | 209.14 | 217.32 | 206.00 | 215.64 | 5453 | NASDAQ | ALGN | Fri, Sep 30, 2022 | 211.96 | 218.31 | 206.76 | 207.11 | 5452 | NASDAQ | ALGN | Thu, Sep 29, 2022 | 208.57 | 211.50 | 204.32 | 211.01 | 5451 | NASDAQ | ALGN | Wed, Sep 28, 2022 | 216.60 | 216.70 | 206.67 | 212.10 | 5450 | NASDAQ | ALGN | Tue, Sep 27, 2022 | 223.68 | 225.81 | 212.42 | 214.22 | 5449 | NASDAQ | ALGN | Mon, Sep 26, 2022 | 222.43 | 228.10 | 217.19 | 219.64 | 5448 | NASDAQ | ALGN | Fri, Sep 23, 2022 | 215.52 | 222.93 | 213.24 | 222.43 | 5447 | NASDAQ | ALGN | Thu, Sep 22, 2022 | 224.14 | 225.66 | 214.68 | 217.95 | 5446 | NASDAQ | ALGN | Wed, Sep 21, 2022 | 232.22 | 240.20 | 225.81 | 226.68 | 5445 | NASDAQ | ALGN | Tue, Sep 20, 2022 | 239.56 | 240.45 | 231.31 | 232.22 | 5444 | NASDAQ | ALGN | Mon, Sep 19, 2022 | 244.58 | 247.63 | 235.20 | 244.19 | 5443 | NASDAQ | ALGN | Fri, Sep 16, 2022 | 247.80 | 250.36 | 242.25 | 249.02 | 5442 | NASDAQ | ALGN | Thu, Sep 15, 2022 | 244.02 | 260.31 | 244.02 | 252.00 | 5441 | NASDAQ | ALGN | Wed, Sep 14, 2022 | 246.89 | 252.12 | 243.42 | 246.74 | 5440 | NASDAQ | ALGN | Tue, Sep 13, 2022 | 255.00 | 255.17 | 246.45 | 247.06 | 5439 | NASDAQ | ALGN | Mon, Sep 12, 2022 | 264.29 | 272.15 | 264.03 | 267.79 | 5438 | NASDAQ | ALGN | Fri, Sep 9, 2022 | 259.09 | 264.93 | 259.09 | 263.11 | 5437 | NASDAQ | ALGN | Thu, Sep 8, 2022 | 245.37 | 258.25 | 244.03 | 257.30 | 5436 | NASDAQ | ALGN | Wed, Sep 7, 2022 | 239.23 | 250.29 | 237.66 | 249.94 | 5435 | NASDAQ | ALGN | Tue, Sep 6, 2022 | 244.55 | 244.81 | 234.55 | 238.99 | 5434 | NASDAQ | ALGN | Fri, Sep 2, 2022 | 249.54 | 250.94 | 241.92 | 244.51 | 5433 | NASDAQ | ALGN | Thu, Sep 1, 2022 | 238.96 | 245.97 | 234.01 | 245.74 | 5432 | NASDAQ | ALGN | Wed, Aug 31, 2022 | 250.21 | 252.50 | 243.00 | 243.70 | 5431 | NASDAQ | ALGN | Tue, Aug 30, 2022 | 250.59 | 254.00 | 242.91 | 246.68 | 5430 | NASDAQ | ALGN | Mon, Aug 29, 2022 | 250.00 | 255.49 | 246.70 | 247.99 | 5429 | NASDAQ | ALGN | Fri, Aug 26, 2022 | 271.96 | 271.96 | 252.12 | 252.45 | 5428 | NASDAQ | ALGN | Thu, Aug 25, 2022 | 265.64 | 273.24 | 265.61 | 272.99 | 5427 | NASDAQ | ALGN | Wed, Aug 24, 2022 | 252.68 | 262.92 | 251.60 | 261.70 | 5426 | NASDAQ | ALGN | Tue, Aug 23, 2022 | 255.63 | 258.30 | 251.16 | 252.23 | 5425 | NASDAQ | ALGN | Mon, Aug 22, 2022 | 263.14 | 266.82 | 255.08 | 256.05 | 5424 | NASDAQ | ALGN | Fri, Aug 19, 2022 | 277.56 | 279.56 | 268.74 | 269.82 | 5423 | NASDAQ | ALGN | Thu, Aug 18, 2022 | 277.22 | 282.01 | 273.55 | 281.66 | 5422 | NASDAQ | ALGN | Wed, Aug 17, 2022 | 284.01 | 286.99 | 272.73 | 277.66 | 5421 | NASDAQ | ALGN | Tue, Aug 16, 2022 | 283.35 | 291.91 | 272.31 | 289.04 | 5420 | NASDAQ | ALGN | Mon, Aug 15, 2022 | 288.68 | 292.87 | 284.52 | 286.19 | 5419 | NASDAQ | ALGN | Fri, Aug 12, 2022 | 288.94 | 290.93 | 285.14 | 289.00 | 5418 | NASDAQ | ALGN | Thu, Aug 11, 2022 | 291.90 | 297.92 | 286.23 | 287.38 | 5417 | NASDAQ | ALGN | Wed, Aug 10, 2022 | 283.34 | 287.90 | 279.44 | 287.81 | 5416 | NASDAQ | ALGN | Tue, Aug 9, 2022 | 288.35 | 288.35 | 271.95 | 273.64 | 5415 | NASDAQ | ALGN | Mon, Aug 8, 2022 | 295.19 | 302.97 | 291.40 | 293.06 | 5414 | NASDAQ | ALGN | Fri, Aug 5, 2022 | 286.82 | 294.20 | 283.28 | 293.89 | 5413 | NASDAQ | ALGN | Thu, Aug 4, 2022 | 286.63 | 296.25 | 285.00 | 293.73 | 5412 | NASDAQ | ALGN | Wed, Aug 3, 2022 | 284.00 | 287.99 | 279.00 | 286.21 | 5411 | NASDAQ | ALGN | Tue, Aug 2, 2022 | 278.02 | 285.15 | 275.54 | 281.23 | 5410 | NASDAQ | ALGN | Mon, Aug 1, 2022 | 278.33 | 289.98 | 276.69 | 282.82 | 5409 | NASDAQ | ALGN | Fri, Jul 29, 2022 | 277.59 | 283.54 | 274.03 | 280.97 | 5408 | NASDAQ | ALGN | Thu, Jul 28, 2022 | 270.55 | 283.83 | 255.90 | 282.25 | 5407 | NASDAQ | ALGN | Wed, Jul 27, 2022 | 256.57 | 265.72 | 255.31 | 262.61 | 5406 | NASDAQ | ALGN | Tue, Jul 26, 2022 | 253.16 | 253.16 | 247.11 | 251.86 | 5405 | NASDAQ | ALGN | Mon, Jul 25, 2022 | 265.30 | 266.64 | 250.22 | 252.07 | 5404 | NASDAQ | ALGN | Fri, Jul 22, 2022 | 278.70 | 281.23 | 262.00 | 265.88 | 5403 | NASDAQ | ALGN | Thu, Jul 21, 2022 | 275.47 | 286.46 | 273.09 | 284.24 | 5402 | NASDAQ | ALGN | Wed, Jul 20, 2022 | 265.74 | 282.91 | 265.34 | 274.49 | 5401 | NASDAQ | ALGN | Tue, Jul 19, 2022 | 259.11 | 269.84 | 257.00 | 267.31 | 5400 | NASDAQ | ALGN | Mon, Jul 18, 2022 | 257.78 | 261.85 | 252.79 | 254.08 | 5399 | NASDAQ | ALGN | Fri, Jul 15, 2022 | 252.02 | 256.09 | 247.27 | 254.88 | 5398 | NASDAQ | ALGN | Thu, Jul 14, 2022 | 245.15 | 248.97 | 240.05 | 247.18 | 5397 | NASDAQ | ALGN | Wed, Jul 13, 2022 | 242.64 | 254.03 | 238.30 | 249.86 | 5396 | NASDAQ | ALGN | Tue, Jul 12, 2022 | 251.36 | 254.30 | 245.91 | 248.98 | 5395 | NASDAQ | ALGN | Mon, Jul 11, 2022 | 257.97 | 261.54 | 247.86 | 249.48 | 5394 | NASDAQ | ALGN | Fri, Jul 8, 2022 | 254.27 | 269.46 | 252.28 | 261.52 | 5393 | NASDAQ | ALGN | Thu, Jul 7, 2022 | 251.84 | 260.19 | 250.52 | 259.64 | 5392 | NASDAQ | ALGN | Wed, Jul 6, 2022 | 254.22 | 256.04 | 247.42 | 249.54 | 5391 | NASDAQ | ALGN | Tue, Jul 5, 2022 | 243.50 | 255.27 | 239.18 | 254.11 | 5390 | NASDAQ | ALGN | Fri, Jul 1, 2022 | 237.03 | 247.67 | 235.28 | 247.34 | 5389 | NASDAQ | ALGN | Thu, Jun 30, 2022 | 240.67 | 243.65 | 232.62 | 236.67 | 5388 | NASDAQ | ALGN | Wed, Jun 29, 2022 | 243.87 | 244.19 | 236.81 | 242.15 | 5387 | NASDAQ | ALGN | Tue, Jun 28, 2022 | 251.51 | 254.76 | 241.43 | 241.92 | 5386 | NASDAQ | ALGN | Mon, Jun 27, 2022 | 258.76 | 259.79 | 249.10 | 250.17 | 5385 | NASDAQ | ALGN | Fri, Jun 24, 2022 | 253.08 | 258.93 | 252.51 | 258.75 | 5384 | NASDAQ | ALGN | Thu, Jun 23, 2022 | 237.98 | 252.57 | 236.62 | 251.12 | 5383 | NASDAQ | ALGN | Wed, Jun 22, 2022 | 226.48 | 240.80 | 225.86 | 235.09 | 5382 | NASDAQ | ALGN | Tue, Jun 21, 2022 | 241.14 | 241.99 | 229.97 | 230.31 | 5381 | NASDAQ | ALGN | Fri, Jun 17, 2022 | 230.96 | 240.32 | 230.84 | 234.47 | 5380 | NASDAQ | ALGN | Thu, Jun 16, 2022 | 235.59 | 239.22 | 228.35 | 229.82 | 5379 | NASDAQ | ALGN | Wed, Jun 15, 2022 | 240.99 | 249.53 | 237.12 | 243.78 | 5378 | NASDAQ | ALGN | Tue, Jun 14, 2022 | 245.03 | 245.63 | 235.55 | 238.08 | 5377 | NASDAQ | ALGN | Mon, Jun 13, 2022 | 246.89 | 251.97 | 242.67 | 244.01 | 5376 | NASDAQ | ALGN | Fri, Jun 10, 2022 | 257.40 | 259.34 | 251.63 | 257.06 | 5375 | NASDAQ | ALGN | Thu, Jun 9, 2022 | 268.72 | 273.91 | 262.13 | 262.55 | 5374 | NASDAQ | ALGN | Wed, Jun 8, 2022 | 275.42 | 277.71 | 272.32 | 273.13 | 5373 | NASDAQ | ALGN | Tue, Jun 7, 2022 | 265.76 | 275.75 | 265.76 | 273.51 | 5372 | NASDAQ | ALGN | Mon, Jun 6, 2022 | 280.87 | 281.50 | 266.62 | 269.01 | 5371 | NASDAQ | ALGN | Fri, Jun 3, 2022 | 278.66 | 280.46 | 272.85 | 273.60 | 5370 | NASDAQ | ALGN | Thu, Jun 2, 2022 | 266.76 | 287.05 | 264.54 | 284.87 | 5369 | NASDAQ | ALGN | Wed, Jun 1, 2022 | 281.07 | 283.27 | 263.48 | 265.17 | 5368 | NASDAQ | ALGN | Tue, May 31, 2022 | 284.70 | 286.40 | 272.17 | 277.64 | 5367 | NASDAQ | ALGN | Fri, May 27, 2022 | 276.03 | 284.57 | 275.62 | 284.57 | 5366 | NASDAQ | ALGN | Thu, May 26, 2022 | 274.42 | 279.15 | 268.15 | 274.83 | 5365 | NASDAQ | ALGN | Wed, May 25, 2022 | 267.15 | 281.48 | 266.69 | 276.57 | 5364 | NASDAQ | ALGN | Tue, May 24, 2022 | 273.17 | 274.21 | 265.01 | 270.18 | 5363 | NASDAQ | ALGN | Mon, May 23, 2022 | 278.46 | 279.55 | 266.05 | 278.71 | 5362 | NASDAQ | ALGN | Fri, May 20, 2022 | 280.00 | 282.41 | 267.01 | 275.04 | 5361 | NASDAQ | ALGN | Thu, May 19, 2022 | 267.07 | 278.80 | 265.51 | 273.89 | 5360 | NASDAQ | ALGN | Wed, May 18, 2022 | 276.50 | 277.41 | 267.31 | 269.11 | 5359 | NASDAQ | ALGN | Tue, May 17, 2022 | 279.96 | 285.46 | 273.99 | 280.59 | 5358 | NASDAQ | ALGN | Mon, May 16, 2022 | 274.66 | 281.62 | 270.12 | 274.20 | 5357 | NASDAQ | ALGN | Fri, May 13, 2022 | 264.42 | 276.84 | 264.42 | 275.52 | 5356 | NASDAQ | ALGN | Thu, May 12, 2022 | 253.82 | 265.40 | 250.64 | 259.53 | 5355 | NASDAQ | ALGN | Wed, May 11, 2022 | 258.77 | 269.59 | 255.00 | 256.11 | 5354 | NASDAQ | ALGN | Tue, May 10, 2022 | 273.50 | 279.60 | 254.48 | 258.13 | 5353 | NASDAQ | ALGN | Mon, May 9, 2022 | 274.22 | 277.67 | 265.30 | 268.96 | 5352 | NASDAQ | ALGN | Fri, May 6, 2022 | 285.85 | 286.34 | 271.53 | 280.41 | 5351 | NASDAQ | ALGN | Thu, May 5, 2022 | 305.79 | 309.00 | 280.05 | 283.72 | 5350 | NASDAQ | ALGN | Wed, May 4, 2022 | 300.03 | 311.62 | 286.70 | 310.89 | 5349 | NASDAQ | ALGN | Tue, May 3, 2022 | 304.02 | 311.92 | 297.05 | 301.02 | 5348 | NASDAQ | ALGN | Mon, May 2, 2022 | 292.48 | 310.97 | 288.02 | 308.88 | 5347 | NASDAQ | ALGN | Fri, Apr 29, 2022 | 303.33 | 319.09 | 288.88 | 289.91 | 5346 | NASDAQ | ALGN | Thu, Apr 28, 2022 | 282.00 | 306.96 | 270.37 | 304.66 | 5345 | NASDAQ | ALGN | Wed, Apr 27, 2022 | 365.02 | 378.98 | 357.22 | 360.43 | 5344 | NASDAQ | ALGN | Tue, Apr 26, 2022 | 363.22 | 365.54 | 353.93 | 361.30 | 5343 | NASDAQ | ALGN | Mon, Apr 25, 2022 | 363.45 | 371.16 | 354.86 | 368.86 | 5342 | NASDAQ | ALGN | Fri, Apr 22, 2022 | 380.57 | 381.60 | 360.17 | 360.57 | 5341 | NASDAQ | ALGN | Thu, Apr 21, 2022 | 421.74 | 425.03 | 382.31 | 383.63 | 5340 | NASDAQ | ALGN | Wed, Apr 20, 2022 | 427.78 | 431.27 | 418.20 | 419.18 | 5339 | NASDAQ | ALGN | Tue, Apr 19, 2022 | 403.17 | 426.71 | 403.01 | 424.54 | 5338 | NASDAQ | ALGN | Mon, Apr 18, 2022 | 408.02 | 409.66 | 401.21 | 405.88 | 5337 | NASDAQ | ALGN | Thu, Apr 14, 2022 | 416.00 | 417.87 | 407.37 | 409.82 | 5336 | NASDAQ | ALGN | Wed, Apr 13, 2022 | 409.02 | 420.18 | 407.01 | 416.91 | 5335 | NASDAQ | ALGN | Tue, Apr 12, 2022 | 414.06 | 430.44 | 401.08 | 406.23 | 5334 | NASDAQ | ALGN | Mon, Apr 11, 2022 | 414.00 | 425.43 | 408.85 | 409.69 | 5333 | NASDAQ | ALGN | Fri, Apr 8, 2022 | 418.98 | 426.63 | 411.43 | 420.56 | 5332 | NASDAQ | ALGN | Thu, Apr 7, 2022 | 418.79 | 426.70 | 415.13 | 422.18 | 5331 | NASDAQ | ALGN | Wed, Apr 6, 2022 | 429.66 | 429.66 | 412.69 | 421.74 | 5330 | NASDAQ | ALGN | Tue, Apr 5, 2022 | 446.87 | 446.87 | 434.58 | 436.80 | 5329 | NASDAQ | ALGN | Mon, Apr 4, 2022 | 445.43 | 451.19 | 439.22 | 445.39 | 5328 | NASDAQ | ALGN | Fri, Apr 1, 2022 | 439.42 | 448.13 | 438.95 | 446.41 | 5327 | NASDAQ | ALGN | Thu, Mar 31, 2022 | 444.96 | 451.61 | 435.78 | 436.00 | 5326 | NASDAQ | ALGN | Wed, Mar 30, 2022 | 449.65 | 450.32 | 437.97 | 442.17 | 5325 | NASDAQ | ALGN | Tue, Mar 29, 2022 | 442.57 | 458.25 | 441.42 | 452.94 | 5324 | NASDAQ | ALGN | Mon, Mar 28, 2022 | 435.08 | 438.31 | 426.59 | 434.00 | 5323 | NASDAQ | ALGN | Fri, Mar 25, 2022 | 439.05 | 439.99 | 418.67 | 430.44 | 5322 | NASDAQ | ALGN | Thu, Mar 24, 2022 | 438.85 | 438.85 | 422.20 | 436.26 | 5321 | NASDAQ | ALGN | Wed, Mar 23, 2022 | 451.22 | 452.74 | 435.77 | 437.06 | 5320 | NASDAQ | ALGN | Tue, Mar 22, 2022 | 434.81 | 461.79 | 434.81 | 457.03 | 5319 | NASDAQ | ALGN | Mon, Mar 21, 2022 | 436.43 | 446.79 | 423.92 | 432.47 | 5318 | NASDAQ | ALGN | Fri, Mar 18, 2022 | 426.01 | 444.23 | 421.07 | 442.87 | 5317 | NASDAQ | ALGN | Thu, Mar 17, 2022 | 417.66 | 427.35 | 414.01 | 425.48 | 5316 | NASDAQ | ALGN | Wed, Mar 16, 2022 | 402.34 | 421.01 | 400.01 | 420.65 | 5315 | NASDAQ | ALGN | Tue, Mar 15, 2022 | 381.09 | 392.63 | 375.00 | 390.73 | 5314 | NASDAQ | ALGN | Mon, Mar 14, 2022 | 403.21 | 403.21 | 372.62 | 378.09 | 5313 | NASDAQ | ALGN | Fri, Mar 11, 2022 | 438.16 | 438.16 | 400.00 | 400.67 | 5312 | NASDAQ | ALGN | Thu, Mar 10, 2022 | 428.27 | 434.81 | 417.00 | 430.09 | 5311 | NASDAQ | ALGN | Wed, Mar 9, 2022 | 433.22 | 444.84 | 426.31 | 442.05 | 5310 | NASDAQ | ALGN | Tue, Mar 8, 2022 | 430.00 | 433.00 | 411.80 | 415.01 | 5309 | NASDAQ | ALGN | Mon, Mar 7, 2022 | 464.00 | 468.80 | 434.64 | 435.57 | 5308 | NASDAQ | ALGN | Fri, Mar 4, 2022 | 474.78 | 475.16 | 452.98 | 464.48 | 5307 | NASDAQ | ALGN | Thu, Mar 3, 2022 | 501.22 | 502.24 | 475.37 | 477.45 | 5306 | NASDAQ | ALGN | Wed, Mar 2, 2022 | 505.17 | 505.20 | 481.82 | 496.14 | 5305 | NASDAQ | ALGN | Tue, Mar 1, 2022 | 508.73 | 509.83 | 490.93 | 500.97 | 5304 | NASDAQ | ALGN | Mon, Feb 28, 2022 | 503.94 | 513.12 | 499.31 | 511.46 | 5303 | NASDAQ | ALGN | Fri, Feb 25, 2022 | 506.21 | 512.88 | 497.22 | 512.56 | 5302 | NASDAQ | ALGN | Thu, Feb 24, 2022 | 468.58 | 511.50 | 464.01 | 509.15 | 5301 | NASDAQ | ALGN | Wed, Feb 23, 2022 | 496.33 | 501.51 | 481.25 | 482.66 | 5300 | NASDAQ | ALGN | Tue, Feb 22, 2022 | 492.56 | 510.86 | 490.01 | 494.11 | 5299 | NASDAQ | ALGN | Fri, Feb 18, 2022 | 504.03 | 510.64 | 494.74 | 498.65 | 5298 | NASDAQ | ALGN | Thu, Feb 17, 2022 | 521.01 | 523.71 | 501.06 | 501.76 | 5297 | NASDAQ | ALGN | Wed, Feb 16, 2022 | 526.17 | 529.49 | 514.23 | 526.38 | 5296 | NASDAQ | ALGN | Tue, Feb 15, 2022 | 515.00 | 528.95 | 513.38 | 528.24 | 5295 | NASDAQ | ALGN | Mon, Feb 14, 2022 | 510.53 | 514.55 | 500.18 | 505.67 | 5294 | NASDAQ | ALGN | Fri, Feb 11, 2022 | 528.38 | 534.47 | 505.50 | 509.10 | 5293 | NASDAQ | ALGN | Thu, Feb 10, 2022 | 525.99 | 552.00 | 524.19 | 532.36 | 5292 | NASDAQ | ALGN | Wed, Feb 9, 2022 | 522.31 | 548.99 | 522.31 | 545.94 | 5291 | NASDAQ | ALGN | Tue, Feb 8, 2022 | 496.15 | 516.72 | 491.00 | 515.49 | 5290 | NASDAQ | ALGN | Mon, Feb 7, 2022 | 490.00 | 509.41 | 489.08 | 500.22 | 5289 | NASDAQ | ALGN | Fri, Feb 4, 2022 | 496.89 | 497.36 | 474.27 | 489.86 | 5288 | NASDAQ | ALGN | Thu, Feb 3, 2022 | 480.36 | 518.00 | 479.47 | 503.31 | 5287 | NASDAQ | ALGN | Wed, Feb 2, 2022 | 511.24 | 521.84 | 498.00 | 505.62 | 5286 | NASDAQ | ALGN | Tue, Feb 1, 2022 | 494.18 | 510.45 | 494.18 | 508.56 | 5285 | NASDAQ | ALGN | Mon, Jan 31, 2022 | 479.22 | 498.69 | 478.00 | 494.96 | 5284 | NASDAQ | ALGN | Fri, Jan 28, 2022 | 454.72 | 467.50 | 442.37 | 463.96 | 5283 | NASDAQ | ALGN | Thu, Jan 27, 2022 | 467.70 | 476.76 | 451.62 | 455.62 | 5282 | NASDAQ | ALGN | Wed, Jan 26, 2022 | 475.00 | 491.48 | 451.62 | 457.36 | 5281 | NASDAQ | ALGN | Tue, Jan 25, 2022 | 464.05 | 477.79 | 458.07 | 467.99 | 5280 | NASDAQ | ALGN | Mon, Jan 24, 2022 | 453.74 | 475.32 | 432.09 | 474.43 | 5279 | NASDAQ | ALGN | Fri, Jan 21, 2022 | 486.49 | 488.67 | 462.32 | 462.78 | 5278 | NASDAQ | ALGN | Thu, Jan 20, 2022 | 502.27 | 518.41 | 489.80 | 490.71 | 5277 | NASDAQ | ALGN | Wed, Jan 19, 2022 | 491.79 | 506.99 | 486.11 | 497.59 | 5276 | NASDAQ | ALGN | Tue, Jan 18, 2022 | 509.25 | 511.99 | 487.50 | 489.56 | 5275 | NASDAQ | ALGN | Fri, Jan 14, 2022 | 519.93 | 529.41 | 510.83 | 524.63 | 5274 | NASDAQ | ALGN | Thu, Jan 13, 2022 | 542.67 | 547.97 | 523.01 | 524.78 | 5273 | NASDAQ | ALGN | Wed, Jan 12, 2022 | 562.24 | 562.26 | 534.52 | 539.47 | 5272 | NASDAQ | ALGN | Tue, Jan 11, 2022 | 547.45 | 561.56 | 535.32 | 559.64 | 5271 | NASDAQ | ALGN | Mon, Jan 10, 2022 | 533.02 | 549.56 | 524.34 | 548.91 | 5270 | NASDAQ | ALGN | Fri, Jan 7, 2022 | 567.13 | 567.13 | 545.86 | 546.99 | 5269 | NASDAQ | ALGN | Thu, Jan 6, 2022 | 575.48 | 587.49 | 563.60 | 567.62 | 5268 | NASDAQ | ALGN | Wed, Jan 5, 2022 | 616.95 | 621.04 | 578.25 | 578.84 | 5267 | NASDAQ | ALGN | Tue, Jan 4, 2022 | 645.86 | 652.19 | 617.37 | 623.50 | 5266 | NASDAQ | ALGN | Mon, Jan 3, 2022 | 656.30 | 658.50 | 641.12 | 648.05 | 5265 | NASDAQ | ALGN | Fri, Dec 31, 2021 | 659.47 | 674.89 | 655.62 | 657.18 | 5264 | NASDAQ | ALGN | Thu, Dec 30, 2021 | 658.57 | 671.01 | 656.44 | 662.22 | 5263 | NASDAQ | ALGN | Wed, Dec 29, 2021 | 649.92 | 660.00 | 649.92 | 653.34 | 5262 | NASDAQ | ALGN | Tue, Dec 28, 2021 | 667.47 | 668.82 | 652.33 | 656.37 | 5261 | NASDAQ | ALGN | Mon, Dec 27, 2021 | 656.72 | 663.62 | 651.79 | 661.07 | 5260 | NASDAQ | ALGN | Thu, Dec 23, 2021 | 648.28 | 663.61 | 647.21 | 653.98 | 5259 | NASDAQ | ALGN | Wed, Dec 22, 2021 | 623.20 | 646.60 | 616.87 | 645.89 | 5258 | NASDAQ | ALGN | Tue, Dec 21, 2021 | 601.48 | 630.84 | 599.87 | 628.72 | 5257 | NASDAQ | ALGN | Mon, Dec 20, 2021 | 597.83 | 599.95 | 581.30 | 593.94 | 5256 | NASDAQ | ALGN | Fri, Dec 17, 2021 | 592.47 | 619.00 | 586.91 | 609.06 | 5255 | NASDAQ | ALGN | Thu, Dec 16, 2021 | 610.01 | 611.32 | 592.41 | 595.06 | 5254 | NASDAQ | ALGN | Wed, Dec 15, 2021 | 605.73 | 610.20 | 591.06 | 602.01 | 5253 | NASDAQ | ALGN | Tue, Dec 14, 2021 | 620.20 | 631.82 | 598.93 | 605.73 | 5252 | NASDAQ | ALGN | Mon, Dec 13, 2021 | 665.72 | 666.50 | 628.77 | 629.91 | 5251 | NASDAQ | ALGN | Fri, Dec 10, 2021 | 672.56 | 683.83 | 660.59 | 668.12 | 5250 | NASDAQ | ALGN | Thu, Dec 9, 2021 | 670.00 | 688.60 | 670.00 | 673.59 | 5249 | NASDAQ | ALGN | Wed, Dec 8, 2021 | 670.27 | 676.94 | 663.67 | 675.22 | 5248 | NASDAQ | ALGN | Tue, Dec 7, 2021 | 649.16 | 675.21 | 648.66 | 666.72 | 5247 | NASDAQ | ALGN | Mon, Dec 6, 2021 | 622.00 | 641.28 | 615.00 | 638.92 | 5246 | NASDAQ | ALGN | Fri, Dec 3, 2021 | 629.36 | 632.57 | 605.49 | 619.75 | 5245 | NASDAQ | ALGN | Thu, Dec 2, 2021 | 602.80 | 628.73 | 595.07 | 624.93 | 5244 | NASDAQ | ALGN | Wed, Dec 1, 2021 | 622.92 | 624.00 | 601.73 | 602.29 | 5243 | NASDAQ | ALGN | Tue, Nov 30, 2021 | 632.61 | 638.94 | 607.47 | 611.53 | 5242 | NASDAQ | ALGN | Mon, Nov 29, 2021 | 636.86 | 642.14 | 629.54 | 634.47 | 5241 | NASDAQ | ALGN | Fri, Nov 26, 2021 | 653.20 | 654.15 | 627.00 | 634.22 | 5240 | NASDAQ | ALGN | Wed, Nov 24, 2021 | 653.16 | 657.74 | 642.55 | 653.20 | 5239 | NASDAQ | ALGN | Tue, Nov 23, 2021 | 665.97 | 666.47 | 650.40 | 657.26 | 5238 | NASDAQ | ALGN | Mon, Nov 22, 2021 | 678.34 | 682.98 | 665.36 | 669.68 | 5237 | NASDAQ | ALGN | Fri, Nov 19, 2021 | 685.55 | 691.96 | 679.18 | 683.29 | 5236 | NASDAQ | ALGN | Thu, Nov 18, 2021 | 692.54 | 695.94 | 677.96 | 683.83 | 5235 | NASDAQ | ALGN | Wed, Nov 17, 2021 | 689.06 | 698.81 | 680.34 | 692.32 | 5234 | NASDAQ | ALGN | Tue, Nov 16, 2021 | 682.42 | 691.95 | 679.00 | 689.06 | 5233 | NASDAQ | ALGN | Mon, Nov 15, 2021 | 692.06 | 692.06 | 674.51 | 680.19 | 5232 | NASDAQ | ALGN | Fri, Nov 12, 2021 | 688.99 | 693.34 | 686.31 | 687.80 | 5231 | NASDAQ | ALGN | Thu, Nov 11, 2021 | 696.99 | 697.89 | 681.66 | 685.91 | 5230 | NASDAQ | ALGN | Wed, Nov 10, 2021 | 702.17 | 709.98 | 687.10 | 689.61 | 5229 | NASDAQ | ALGN | Tue, Nov 9, 2021 | 711.18 | 713.33 | 699.48 | 711.02 | 5228 | NASDAQ | ALGN | Mon, Nov 8, 2021 | 690.47 | 711.61 | 682.88 | 710.87 | 5227 | NASDAQ | ALGN | Fri, Nov 5, 2021 | 680.40 | 687.27 | 675.43 | 687.19 | 5226 | NASDAQ | ALGN | Thu, Nov 4, 2021 | 673.46 | 680.79 | 670.87 | 679.26 | 5225 | NASDAQ | ALGN | Wed, Nov 3, 2021 | 667.06 | 675.75 | 657.87 | 673.61 | 5224 | NASDAQ | ALGN | Tue, Nov 2, 2021 | 663.00 | 678.72 | 649.19 | 667.06 | 5223 | NASDAQ | ALGN | Mon, Nov 1, 2021 | 631.50 | 667.10 | 631.50 | 661.46 | 5222 | NASDAQ | ALGN | Fri, Oct 29, 2021 | 629.18 | 629.18 | 619.70 | 624.37 | 5221 | NASDAQ | ALGN | Thu, Oct 28, 2021 | 658.39 | 662.00 | 607.28 | 631.80 | 5220 | NASDAQ | ALGN | Wed, Oct 27, 2021 | 591.28 | 615.25 | 583.38 | 604.39 | 5219 | NASDAQ | ALGN | Tue, Oct 26, 2021 | 594.66 | 603.34 | 586.80 | 593.30 | 5218 | NASDAQ | ALGN | Mon, Oct 25, 2021 | 590.00 | 597.00 | 583.65 | 589.81 | 5217 | NASDAQ | ALGN | Fri, Oct 22, 2021 | 599.00 | 600.15 | 586.90 | 590.56 | 5216 | NASDAQ | ALGN | Thu, Oct 21, 2021 | 611.19 | 618.01 | 597.60 | 599.49 | 5215 | NASDAQ | ALGN | Wed, Oct 20, 2021 | 597.06 | 608.73 | 592.52 | 608.20 | 5214 | NASDAQ | ALGN | Tue, Oct 19, 2021 | 601.39 | 603.68 | 592.66 | 594.27 | 5213 | NASDAQ | ALGN | Mon, Oct 18, 2021 | 586.45 | 596.99 | 580.11 | 595.13 | 5212 | NASDAQ | ALGN | Fri, Oct 15, 2021 | 605.25 | 606.95 | 587.06 | 589.61 | 5211 | NASDAQ | ALGN | Thu, Oct 14, 2021 | 600.99 | 604.00 | 586.19 | 597.72 | 5210 | NASDAQ | ALGN | Wed, Oct 13, 2021 | 608.61 | 608.61 | 572.51 | 596.22 | 5209 | NASDAQ | ALGN | Tue, Oct 12, 2021 | 632.00 | 632.38 | 621.87 | 627.43 | 5208 | NASDAQ | ALGN | Mon, Oct 11, 2021 | 638.00 | 644.28 | 631.14 | 631.85 | 5207 | NASDAQ | ALGN | Fri, Oct 8, 2021 | 663.97 | 664.45 | 641.82 | 643.56 | 5206 | NASDAQ | ALGN | Thu, Oct 7, 2021 | 653.62 | 671.90 | 653.62 | 661.41 | 5205 | NASDAQ | ALGN | Wed, Oct 6, 2021 | 640.60 | 651.35 | 638.59 | 650.65 | 5204 | NASDAQ | ALGN | Tue, Oct 5, 2021 | 643.81 | 657.16 | 642.19 | 648.58 | 5203 | NASDAQ | ALGN | Mon, Oct 4, 2021 | 658.60 | 659.38 | 637.56 | 640.40 | 5202 | NASDAQ | ALGN | Fri, Oct 1, 2021 | 672.00 | 674.95 | 648.20 | 662.06 | 5201 | NASDAQ | ALGN | Thu, Sep 30, 2021 | 684.62 | 684.62 | 665.41 | 665.43 | 5200 | NASDAQ | ALGN | Wed, Sep 29, 2021 | 679.40 | 683.12 | 671.44 | 673.06 | 5199 | NASDAQ | ALGN | Tue, Sep 28, 2021 | 692.07 | 692.74 | 672.65 | 677.32 | 5198 | NASDAQ | ALGN | Mon, Sep 27, 2021 | 716.59 | 720.07 | 693.39 | 701.04 | 5197 | NASDAQ | ALGN | Fri, Sep 24, 2021 | 718.47 | 726.30 | 715.29 | 725.24 | 5196 | NASDAQ | ALGN | Thu, Sep 23, 2021 | 723.00 | 737.45 | 720.18 | 727.11 | 5195 | NASDAQ | ALGN | Wed, Sep 22, 2021 | 713.31 | 725.27 | 701.21 | 716.61 | 5194 | NASDAQ | ALGN | Tue, Sep 21, 2021 | 717.14 | 721.00 | 704.61 | 709.15 | 5193 | NASDAQ | ALGN | Mon, Sep 20, 2021 | 708.02 | 713.69 | 698.03 | 709.64 | 5192 | NASDAQ | ALGN | Fri, Sep 17, 2021 | 728.90 | 730.61 | 715.00 | 719.38 | 5191 | NASDAQ | ALGN | Thu, Sep 16, 2021 | 712.98 | 731.20 | 710.35 | 728.29 | 5190 | NASDAQ | ALGN | Wed, Sep 15, 2021 | 706.06 | 713.85 | 692.23 | 710.31 | 5189 | NASDAQ | ALGN | Tue, Sep 14, 2021 | 718.36 | 724.64 | 703.60 | 706.45 | 5188 | NASDAQ | ALGN | Mon, Sep 13, 2021 | 726.54 | 726.54 | 695.63 | 710.68 | 5187 | NASDAQ | ALGN | Fri, Sep 10, 2021 | 730.22 | 731.24 | 718.75 | 720.67 | 5186 | NASDAQ | ALGN | Thu, Sep 9, 2021 | 734.46 | 735.17 | 723.78 | 726.41 | 5185 | NASDAQ | ALGN | Wed, Sep 8, 2021 | 716.98 | 733.33 | 715.12 | 729.92 | 5184 | NASDAQ | ALGN | Tue, Sep 7, 2021 | 719.80 | 720.51 | 706.00 | 716.21 | 5183 | NASDAQ | ALGN | Fri, Sep 3, 2021 | 729.87 | 729.87 | 711.98 | 721.50 | 5182 | NASDAQ | ALGN | Thu, Sep 2, 2021 | 721.59 | 731.73 | 719.00 | 729.03 | 5181 | NASDAQ | ALGN | Wed, Sep 1, 2021 | 713.14 | 719.83 | 708.79 | 718.72 | 5180 | NASDAQ | ALGN | Tue, Aug 31, 2021 | 702.01 | 710.68 | 700.28 | 709.00 | 5179 | NASDAQ | ALGN | Mon, Aug 30, 2021 | 706.42 | 712.80 | 698.68 | 702.11 | 5178 | NASDAQ | ALGN | Fri, Aug 27, 2021 | 699.32 | 709.15 | 696.00 | 701.85 | 5177 | NASDAQ | ALGN | Thu, Aug 26, 2021 | 714.65 | 717.75 | 692.90 | 696.56 | 5176 | NASDAQ | ALGN | Wed, Aug 25, 2021 | 713.25 | 721.45 | 711.72 | 716.90 | 5175 | NASDAQ | ALGN | Tue, Aug 24, 2021 | 696.34 | 715.74 | 696.34 | 712.84 | 5174 | NASDAQ | ALGN | Mon, Aug 23, 2021 | 687.38 | 699.53 | 686.86 | 697.50 | 5173 | NASDAQ | ALGN | Fri, Aug 20, 2021 | 681.40 | 684.26 | 672.81 | 681.57 | 5172 | NASDAQ | ALGN | Thu, Aug 19, 2021 | 671.03 | 685.53 | 669.64 | 679.86 | 5171 | NASDAQ | ALGN | Wed, Aug 18, 2021 | 680.82 | 690.96 | 672.73 | 675.26 | 5170 | NASDAQ | ALGN | Tue, Aug 17, 2021 | 690.78 | 690.78 | 669.31 | 680.89 | 5169 | NASDAQ | ALGN | Mon, Aug 16, 2021 | 684.20 | 690.84 | 681.19 | 690.75 | 5168 | NASDAQ | ALGN | Fri, Aug 13, 2021 | 700.86 | 704.85 | 685.69 | 691.19 | 5167 | NASDAQ | ALGN | Thu, Aug 12, 2021 | 687.72 | 705.84 | 683.59 | 704.27 | 5166 | NASDAQ | ALGN | Wed, Aug 11, 2021 | 690.23 | 692.12 | 676.24 | 687.78 | 5165 | NASDAQ | ALGN | Tue, Aug 10, 2021 | 689.57 | 691.81 | 674.19 | 687.38 | 5164 | NASDAQ | ALGN | Mon, Aug 9, 2021 | 693.50 | 695.00 | 684.90 | 686.56 | 5163 | NASDAQ | ALGN | Fri, Aug 6, 2021 | 696.74 | 700.79 | 684.00 | 693.67 | 5162 | NASDAQ | ALGN | Thu, Aug 5, 2021 | 711.00 | 714.15 | 694.12 | 699.22 | 5161 | NASDAQ | ALGN | Wed, Aug 4, 2021 | 698.90 | 712.98 | 698.58 | 708.01 | 5160 | NASDAQ | ALGN | Tue, Aug 3, 2021 | 700.42 | 706.07 | 687.56 | 701.34 | 5159 | NASDAQ | ALGN | Mon, Aug 2, 2021 | 700.00 | 713.70 | 695.60 | 700.00 | 5158 | NASDAQ | ALGN | Fri, Jul 30, 2021 | 675.60 | 697.87 | 673.00 | 695.80 | 5157 | NASDAQ | ALGN | Thu, Jul 29, 2021 | 634.36 | 682.59 | 634.00 | 676.98 | 5156 | NASDAQ | ALGN | Wed, Jul 28, 2021 | 624.14 | 630.00 | 616.58 | 621.87 | 5155 | NASDAQ | ALGN | Tue, Jul 27, 2021 | 632.74 | 638.20 | 617.67 | 625.51 | 5154 | NASDAQ | ALGN | Mon, Jul 26, 2021 | 636.01 | 636.62 | 623.56 | 635.58 | 5153 | NASDAQ | ALGN | Fri, Jul 23, 2021 | 624.90 | 640.41 | 624.90 | 638.28 | 5152 | NASDAQ | ALGN | Thu, Jul 22, 2021 | 623.39 | 628.99 | 615.92 | 627.92 | 5151 | NASDAQ | ALGN | Wed, Jul 21, 2021 | 615.53 | 621.47 | 603.50 | 619.65 | 5150 | NASDAQ | ALGN | Tue, Jul 20, 2021 | 596.04 | 620.37 | 589.24 | 615.71 | 5149 | NASDAQ | ALGN | Mon, Jul 19, 2021 | 609.37 | 609.37 | 591.56 | 595.56 | 5148 | NASDAQ | ALGN | Fri, Jul 16, 2021 | 623.39 | 628.35 | 613.52 | 616.12 | 5147 | NASDAQ | ALGN | Thu, Jul 15, 2021 | 633.89 | 638.27 | 609.36 | 621.70 | 5146 | NASDAQ | ALGN | Wed, Jul 14, 2021 | 647.50 | 653.86 | 631.73 | 635.09 | 5145 | NASDAQ | ALGN | Tue, Jul 13, 2021 | 642.86 | 647.83 | 636.45 | 642.40 | 5144 | NASDAQ | ALGN | Mon, Jul 12, 2021 | 631.70 | 644.89 | 623.75 | 642.86 | 5143 | NASDAQ | ALGN | Fri, Jul 9, 2021 | 621.92 | 638.48 | 613.71 | 627.19 | 5142 | NASDAQ | ALGN | Thu, Jul 8, 2021 | 604.93 | 620.53 | 598.02 | 616.79 | 5141 | NASDAQ | ALGN | Wed, Jul 7, 2021 | 609.01 | 617.27 | 604.01 | 612.22 | 5140 | NASDAQ | ALGN | Tue, Jul 6, 2021 | 624.04 | 626.96 | 592.13 | 604.67 | 5139 | NASDAQ | ALGN | Fri, Jul 2, 2021 | 624.81 | 625.36 | 615.36 | 624.17 | 5138 | NASDAQ | ALGN | Thu, Jul 1, 2021 | 609.31 | 619.04 | 607.59 | 618.96 | 5137 | NASDAQ | ALGN | Wed, Jun 30, 2021 | 608.73 | 616.08 | 603.54 | 611.00 | 5136 | NASDAQ | ALGN | Tue, Jun 29, 2021 | 623.00 | 624.55 | 611.57 | 612.80 | 5135 | NASDAQ | ALGN | Mon, Jun 28, 2021 | 618.45 | 629.35 | 614.43 | 621.52 | 5134 | NASDAQ | ALGN | Fri, Jun 25, 2021 | 623.00 | 625.65 | 607.32 | 614.98 | 5133 | NASDAQ | ALGN | Thu, Jun 24, 2021 | 609.64 | 627.44 | 608.00 | 617.39 | 5132 | NASDAQ | ALGN | Wed, Jun 23, 2021 | 602.39 | 608.61 | 596.00 | 605.82 | 5131 | NASDAQ | ALGN | Tue, Jun 22, 2021 | 611.51 | 611.81 | 598.11 | 604.71 | 5130 | NASDAQ | ALGN | Mon, Jun 21, 2021 | 604.94 | 615.18 | 597.84 | 611.54 | 5129 | NASDAQ | ALGN | Fri, Jun 18, 2021 | 609.78 | 617.11 | 599.34 | 601.64 | 5128 | NASDAQ | ALGN | Thu, Jun 17, 2021 | 596.80 | 616.66 | 595.82 | 613.33 | 5127 | NASDAQ | ALGN | Wed, Jun 16, 2021 | 599.20 | 601.88 | 587.59 | 599.60 | 5126 | NASDAQ | ALGN | Tue, Jun 15, 2021 | 609.38 | 613.15 | 596.12 | 600.05 | 5125 | NASDAQ | ALGN | Mon, Jun 14, 2021 | 613.59 | 614.95 | 601.20 | 605.77 | 5124 | NASDAQ | ALGN | Fri, Jun 11, 2021 | 611.99 | 615.80 | 605.64 | 611.54 | 5123 | NASDAQ | ALGN | Thu, Jun 10, 2021 | 585.81 | 612.56 | 582.55 | 612.15 | 5122 | NASDAQ | ALGN | Wed, Jun 9, 2021 | 593.00 | 595.65 | 583.67 | 585.50 | 5121 | NASDAQ | ALGN | Tue, Jun 8, 2021 | 582.08 | 591.94 | 579.15 | 589.76 | 5120 | NASDAQ | ALGN | Mon, Jun 7, 2021 | 579.44 | 585.95 | 575.29 | 580.27 | 5119 | NASDAQ | ALGN | Fri, Jun 4, 2021 | 574.45 | 586.00 | 572.53 | 582.35 | 5118 | NASDAQ | ALGN | Thu, Jun 3, 2021 | 567.28 | 576.56 | 563.87 | 566.96 | 5117 | NASDAQ | ALGN | Wed, Jun 2, 2021 | 592.82 | 592.82 | 573.85 | 575.49 | 5116 | NASDAQ | ALGN | Tue, Jun 1, 2021 | 592.44 | 596.76 | 585.11 | 593.48 | 5115 | NASDAQ | ALGN | Fri, May 28, 2021 | 605.00 | 609.14 | 589.73 | 590.15 | 5114 | NASDAQ | ALGN | Thu, May 27, 2021 | 595.00 | 603.17 | 586.51 | 599.77 | 5113 | NASDAQ | ALGN | Wed, May 26, 2021 | 593.00 | 599.49 | 591.26 | 596.69 | 5112 | NASDAQ | ALGN | Tue, May 25, 2021 | 605.15 | 610.49 | 592.95 | 594.95 | 5111 | NASDAQ | ALGN | Mon, May 24, 2021 | 596.90 | 611.00 | 594.10 | 604.45 | 5110 | NASDAQ | ALGN | Fri, May 21, 2021 | 594.10 | 601.39 | 587.81 | 591.75 | 5109 | NASDAQ | ALGN | Thu, May 20, 2021 | 575.00 | 590.53 | 574.19 | 587.90 | 5108 | NASDAQ | ALGN | Wed, May 19, 2021 | 557.42 | 572.31 | 551.01 | 571.49 | 5107 | NASDAQ | ALGN | Tue, May 18, 2021 | 567.10 | 582.71 | 565.51 | 569.50 | 5106 | NASDAQ | ALGN | Mon, May 17, 2021 | 562.10 | 567.53 | 554.97 | 559.52 | 5105 | NASDAQ | ALGN | Fri, May 14, 2021 | 562.55 | 572.50 | 555.98 | 569.04 | 5104 | NASDAQ | ALGN | Thu, May 13, 2021 | 557.58 | 559.95 | 546.02 | 553.62 | 5103 | NASDAQ | ALGN | Wed, May 12, 2021 | 553.42 | 557.58 | 547.51 | 548.64 | 5102 | NASDAQ | ALGN | Tue, May 11, 2021 | 539.91 | 570.12 | 536.23 | 566.26 | 5101 | NASDAQ | ALGN | Mon, May 10, 2021 | 596.16 | 596.16 | 551.28 | 554.50 | 5100 | NASDAQ | ALGN | Fri, May 7, 2021 | 586.08 | 604.00 | 586.08 | 598.34 | 5099 | NASDAQ | ALGN | Thu, May 6, 2021 | 568.69 | 584.95 | 560.58 | 584.72 | 5098 | NASDAQ | ALGN | Wed, May 5, 2021 | 587.00 | 587.24 | 568.26 | 569.25 | 5097 | NASDAQ | ALGN | Tue, May 4, 2021 | 594.18 | 594.18 | 560.50 | 582.15 | 5096 | NASDAQ | ALGN | Mon, May 3, 2021 | 599.14 | 610.12 | 595.60 | 599.77 | 5095 | NASDAQ | ALGN | Fri, Apr 30, 2021 | 597.76 | 615.75 | 594.22 | 595.53 | 5094 | NASDAQ | ALGN | Thu, Apr 29, 2021 | 643.16 | 647.20 | 590.44 | 604.34 | 5093 | NASDAQ | ALGN | Wed, Apr 28, 2021 | 616.12 | 623.11 | 611.65 | 613.36 | 5092 | NASDAQ | ALGN | Tue, Apr 27, 2021 | 620.41 | 625.79 | 613.73 | 621.76 | 5091 | NASDAQ | ALGN | Mon, Apr 26, 2021 | 620.98 | 625.61 | 613.55 | 617.24 | 5090 | NASDAQ | ALGN | Fri, Apr 23, 2021 | 616.00 | 624.79 | 616.00 | 620.12 | 5089 | NASDAQ | ALGN | Thu, Apr 22, 2021 | 621.52 | 627.53 | 609.75 | 615.31 | 5088 | NASDAQ | ALGN | Wed, Apr 21, 2021 | 595.63 | 618.00 | 593.18 | 616.08 | 5087 | NASDAQ | ALGN | Tue, Apr 20, 2021 | 603.85 | 604.50 | 588.29 | 596.20 | 5086 | NASDAQ | ALGN | Mon, Apr 19, 2021 | 608.31 | 610.00 | 593.67 | 603.72 | 5085 | NASDAQ | ALGN | Fri, Apr 16, 2021 | 607.14 | 608.00 | 599.02 | 606.33 | 5084 | NASDAQ | ALGN | Thu, Apr 15, 2021 | 598.57 | 608.20 | 598.57 | 606.23 | 5083 | NASDAQ | ALGN | Wed, Apr 14, 2021 | 595.70 | 604.17 | 589.26 | 594.93 | 5082 | NASDAQ | ALGN | Tue, Apr 13, 2021 | 602.49 | 608.02 | 591.63 | 595.63 | 5081 | NASDAQ | ALGN | Mon, Apr 12, 2021 | 593.59 | 602.07 | 585.66 | 601.11 | 5080 | NASDAQ | ALGN | Fri, Apr 9, 2021 | 576.52 | 592.99 | 575.00 | 592.56 | 5079 | NASDAQ | ALGN | Thu, Apr 8, 2021 | 558.87 | 577.92 | 556.82 | 575.75 | 5078 | NASDAQ | ALGN | Wed, Apr 7, 2021 | 556.01 | 559.38 | 545.95 | 552.56 | 5077 | NASDAQ | ALGN | Tue, Apr 6, 2021 | 551.54 | 563.96 | 547.56 | 553.84 | 5076 | NASDAQ | ALGN | Mon, Apr 5, 2021 | 550.33 | 554.49 | 544.51 | 547.94 | 5075 | NASDAQ | ALGN | Thu, Apr 1, 2021 | 546.24 | 557.15 | 544.00 | 545.05 | 5074 | NASDAQ | ALGN | Wed, Mar 31, 2021 | 532.00 | 545.21 | 529.25 | 541.53 | 5073 | NASDAQ | ALGN | Tue, Mar 30, 2021 | 516.22 | 526.11 | 511.13 | 524.33 | 5072 | NASDAQ | ALGN | Mon, Mar 29, 2021 | 523.19 | 526.79 | 502.23 | 516.00 | 5071 | NASDAQ | ALGN | Fri, Mar 26, 2021 | 518.81 | 528.78 | 511.97 | 528.34 | 5070 | NASDAQ | ALGN | Thu, Mar 25, 2021 | 502.06 | 520.24 | 498.00 | 517.87 | 5069 | NASDAQ | ALGN | Wed, Mar 24, 2021 | 521.00 | 522.49 | 504.58 | 506.17 | 5068 | NASDAQ | ALGN | Tue, Mar 23, 2021 | 528.32 | 531.93 | 517.18 | 518.88 | 5067 | NASDAQ | ALGN | Mon, Mar 22, 2021 | 532.34 | 538.91 | 528.19 | 530.60 | 5066 | NASDAQ | ALGN | Fri, Mar 19, 2021 | 520.97 | 533.81 | 513.02 | 529.46 | 5065 | NASDAQ | ALGN | Thu, Mar 18, 2021 | 527.91 | 533.41 | 512.25 | 514.36 | 5064 | NASDAQ | ALGN | Wed, Mar 17, 2021 | 532.38 | 546.49 | 527.26 | 540.01 | 5063 | NASDAQ | ALGN | Tue, Mar 16, 2021 | 566.41 | 566.65 | 539.11 | 542.54 | 5062 | NASDAQ | ALGN | Mon, Mar 15, 2021 | 551.09 | 560.18 | 540.61 | 558.85 | 5061 | NASDAQ | ALGN | Fri, Mar 12, 2021 | 538.65 | 538.65 | 529.23 | 536.44 | 5060 | NASDAQ | ALGN | Thu, Mar 11, 2021 | 529.31 | 544.92 | 523.90 | 544.00 | 5059 | NASDAQ | ALGN | Wed, Mar 10, 2021 | 527.44 | 534.82 | 509.21 | 511.79 | 5058 | NASDAQ | ALGN | Tue, Mar 9, 2021 | 511.16 | 527.02 | 511.16 | 515.87 | 5057 | NASDAQ | ALGN | Mon, Mar 8, 2021 | 532.28 | 538.20 | 494.45 | 496.07 | 5056 | NASDAQ | ALGN | Fri, Mar 5, 2021 | 525.00 | 539.94 | 504.03 | 536.46 | 5055 | NASDAQ | ALGN | Thu, Mar 4, 2021 | 523.70 | 535.21 | 510.00 | 520.45 | 5054 | NASDAQ | ALGN | Wed, Mar 3, 2021 | 559.00 | 560.00 | 525.77 | 527.43 | 5053 | NASDAQ | ALGN | Tue, Mar 2, 2021 | 565.00 | 576.35 | 558.00 | 563.21 | 5052 | NASDAQ | ALGN | Mon, Mar 1, 2021 | 567.57 | 577.80 | 557.79 | 565.11 | 5051 | NASDAQ | ALGN | Fri, Feb 26, 2021 | 561.46 | 574.98 | 554.20 | 567.11 | 5050 | NASDAQ | ALGN | Thu, Feb 25, 2021 | 578.87 | 581.67 | 547.73 | 556.11 | 5049 | NASDAQ | ALGN | Wed, Feb 24, 2021 | 560.13 | 577.44 | 553.85 | 573.26 | 5048 | NASDAQ | ALGN | Tue, Feb 23, 2021 | 563.28 | 572.61 | 552.91 | 567.81 | 5047 | NASDAQ | ALGN | Mon, Feb 22, 2021 | 590.37 | 596.89 | 578.12 | 579.54 | 5046 | NASDAQ | ALGN | Fri, Feb 19, 2021 | 595.91 | 601.93 | 593.15 | 599.25 | 5045 | NASDAQ | ALGN | Thu, Feb 18, 2021 | 596.07 | 600.09 | 584.55 | 594.99 | 5044 | NASDAQ | ALGN | Wed, Feb 17, 2021 | 603.67 | 611.96 | 589.00 | 599.53 | 5043 | NASDAQ | ALGN | Tue, Feb 16, 2021 | 612.69 | 615.76 | 604.07 | 614.21 | 5042 | NASDAQ | ALGN | Fri, Feb 12, 2021 | 601.86 | 609.99 | 595.16 | 609.58 | 5041 | NASDAQ | ALGN | Thu, Feb 11, 2021 | 611.77 | 611.77 | 591.15 | 599.00 | 5040 | NASDAQ | ALGN | Wed, Feb 10, 2021 | 618.07 | 618.07 | 598.21 | 605.78 | 5039 | NASDAQ | ALGN | Tue, Feb 9, 2021 | 601.39 | 618.84 | 601.39 | 615.00 | 5038 | NASDAQ | ALGN | Mon, Feb 8, 2021 | 622.19 | 630.04 | 595.78 | 602.44 | 5037 | NASDAQ | ALGN | Fri, Feb 5, 2021 | 622.09 | 624.54 | 614.01 | 620.45 | 5036 | NASDAQ | ALGN | Thu, Feb 4, 2021 | 607.50 | 634.46 | 600.95 | 615.16 | 5035 | NASDAQ | ALGN | Wed, Feb 3, 2021 | 557.49 | 557.49 | 541.17 | 546.18 | 5034 | NASDAQ | ALGN | Tue, Feb 2, 2021 | 551.78 | 567.83 | 548.01 | 557.77 | 5033 | NASDAQ | ALGN | Mon, Feb 1, 2021 | 539.93 | 544.75 | 527.02 | 543.05 | 5032 | NASDAQ | ALGN | Fri, Jan 29, 2021 | 525.16 | 530.55 | 517.55 | 525.38 | 5031 | NASDAQ | ALGN | Thu, Jan 28, 2021 | 509.36 | 547.57 | 509.36 | 536.58 | 5030 | NASDAQ | ALGN | Wed, Jan 27, 2021 | 519.33 | 527.69 | 507.77 | 509.64 | 5029 | NASDAQ | ALGN | Tue, Jan 26, 2021 | 541.27 | 545.00 | 530.06 | 535.10 | 5028 | NASDAQ | ALGN | Mon, Jan 25, 2021 | 533.39 | 540.74 | 510.11 | 539.47 | 5027 | NASDAQ | ALGN | Fri, Jan 22, 2021 | 546.85 | 546.85 | 531.17 | 534.08 | 5026 | NASDAQ | ALGN | Thu, Jan 21, 2021 | 563.97 | 565.32 | 543.32 | 543.81 | 5025 | NASDAQ | ALGN | Wed, Jan 20, 2021 | 568.84 | 575.92 | 560.07 | 564.37 | 5024 | NASDAQ | ALGN | Tue, Jan 19, 2021 | 574.72 | 574.72 | 545.08 | 557.41 | 5023 | NASDAQ | ALGN | Fri, Jan 15, 2021 | 553.19 | 569.66 | 548.00 | 567.23 | 5022 | NASDAQ | ALGN | Thu, Jan 14, 2021 | 546.51 | 561.12 | 543.01 | 554.64 | 5021 | NASDAQ | ALGN | Wed, Jan 13, 2021 | 551.26 | 553.76 | 543.91 | 551.14 | 5020 | NASDAQ | ALGN | Tue, Jan 12, 2021 | 552.34 | 562.39 | 548.41 | 552.88 | 5019 | NASDAQ | ALGN | Mon, Jan 11, 2021 | 565.01 | 566.10 | 551.83 | 557.04 | 5018 | NASDAQ | ALGN | Fri, Jan 8, 2021 | 561.63 | 579.50 | 559.00 | 570.53 | 5017 | NASDAQ | ALGN | Thu, Jan 7, 2021 | 547.78 | 561.35 | 544.27 | 558.36 | 5016 | NASDAQ | ALGN | Wed, Jan 6, 2021 | 534.33 | 546.48 | 531.46 | 540.39 | 5015 | NASDAQ | ALGN | Tue, Jan 5, 2021 | 526.97 | 544.07 | 526.77 | 543.65 | 5014 | NASDAQ | ALGN | Mon, Jan 4, 2021 | 549.61 | 560.00 | 519.70 | 526.46 | 5013 | NASDAQ | ALGN | Thu, Dec 31, 2020 | 526.87 | 535.40 | 523.33 | 534.38 | 5012 | NASDAQ | ALGN | Wed, Dec 30, 2020 | 522.29 | 527.97 | 519.75 | 524.32 | 5011 | NASDAQ | ALGN | Tue, Dec 29, 2020 | 524.92 | 525.77 | 512.80 | 520.45 | 5010 | NASDAQ | ALGN | Mon, Dec 28, 2020 | 532.32 | 532.74 | 518.84 | 520.86 | 5009 | NASDAQ | ALGN | Thu, Dec 24, 2020 | 528.14 | 529.21 | 521.13 | 528.03 | 5008 | NASDAQ | ALGN | Wed, Dec 23, 2020 | 540.52 | 543.65 | 524.99 | 525.00 | 5007 | NASDAQ | ALGN | Tue, Dec 22, 2020 | 531.99 | 536.60 | 527.60 | 536.59 | 5006 | NASDAQ | ALGN | Mon, Dec 21, 2020 | 518.09 | 531.60 | 513.34 | 530.71 | 5005 | NASDAQ | ALGN | Fri, Dec 18, 2020 | 533.01 | 535.00 | 521.65 | 529.92 | 5004 | NASDAQ | ALGN | Thu, Dec 17, 2020 | 522.00 | 527.25 | 516.95 | 526.72 | 5003 | NASDAQ | ALGN | Wed, Dec 16, 2020 | 511.08 | 520.38 | 510.27 | 516.34 | 5002 | NASDAQ | ALGN | Tue, Dec 15, 2020 | 511.80 | 519.06 | 502.60 | 516.30 | 5001 | NASDAQ | ALGN | Mon, Dec 14, 2020 | 510.90 | 522.34 | 502.31 | 504.31 | 5000 | NASDAQ | ALGN | Fri, Dec 11, 2020 | 507.00 | 509.50 | 498.26 | 507.08 | 4999 | NASDAQ | ALGN | Thu, Dec 10, 2020 | 506.89 | 511.32 | 499.57 | 508.39 | 4998 | NASDAQ | ALGN | Wed, Dec 9, 2020 | 516.24 | 520.88 | 507.31 | 509.01 | 4997 | NASDAQ | ALGN | Tue, Dec 8, 2020 | 516.75 | 518.17 | 509.27 | 515.76 | 4996 | NASDAQ | ALGN | Mon, Dec 7, 2020 | 521.90 | 524.61 | 515.50 | 517.71 | 4995 | NASDAQ | ALGN | Fri, Dec 4, 2020 | 511.96 | 524.88 | 510.32 | 521.72 | 4994 | NASDAQ | ALGN | Thu, Dec 3, 2020 | 506.24 | 516.30 | 505.31 | 511.00 | 4993 | NASDAQ | ALGN | Wed, Dec 2, 2020 | 496.57 | 507.64 | 491.79 | 505.48 | 4992 | NASDAQ | ALGN | Tue, Dec 1, 2020 | 487.46 | 508.96 | 485.60 | 500.10 | 4991 | NASDAQ | ALGN | Mon, Nov 30, 2020 | 472.40 | 483.88 | 471.31 | 481.29 | 4990 | NASDAQ | ALGN | Fri, Nov 27, 2020 | 470.92 | 477.17 | 468.14 | 475.50 | 4989 | NASDAQ | ALGN | Wed, Nov 25, 2020 | 470.69 | 474.61 | 465.76 | 473.69 | 4988 | NASDAQ | ALGN | Tue, Nov 24, 2020 | 483.01 | 486.00 | 465.46 | 475.10 | 4987 | NASDAQ | ALGN | Mon, Nov 23, 2020 | 452.15 | 479.54 | 449.47 | 476.58 | 4986 | NASDAQ | ALGN | Fri, Nov 20, 2020 | 443.39 | 452.57 | 439.86 | 446.45 | 4985 | NASDAQ | ALGN | Thu, Nov 19, 2020 | 443.54 | 447.14 | 439.71 | 441.35 | 4984 | NASDAQ | ALGN | Wed, Nov 18, 2020 | 449.06 | 455.15 | 442.87 | 444.61 | 4983 | NASDAQ | ALGN | Tue, Nov 17, 2020 | 452.00 | 456.41 | 444.75 | 451.38 | 4982 | NASDAQ | ALGN | Mon, Nov 16, 2020 | 463.24 | 466.75 | 450.89 | 457.17 | 4981 | NASDAQ | ALGN | Fri, Nov 13, 2020 | 455.77 | 461.17 | 452.25 | 457.26 | 4980 | NASDAQ | ALGN | Thu, Nov 12, 2020 | 455.72 | 464.85 | 449.03 | 452.76 | 4979 | NASDAQ | ALGN | Wed, Nov 11, 2020 | 464.70 | 469.59 | 456.48 | 461.78 | 4978 | NASDAQ | ALGN | Tue, Nov 10, 2020 | 484.48 | 484.48 | 457.61 | 464.32 | 4977 | NASDAQ | ALGN | Mon, Nov 9, 2020 | 501.00 | 507.05 | 476.79 | 476.99 | 4976 | NASDAQ | ALGN | Fri, Nov 6, 2020 | 490.45 | 491.50 | 476.12 | 477.85 | 4975 | NASDAQ | ALGN | Thu, Nov 5, 2020 | 486.47 | 498.67 | 486.47 | 491.91 | 4974 | NASDAQ | ALGN | Wed, Nov 4, 2020 | 472.23 | 484.50 | 471.01 | 483.46 | 4973 | NASDAQ | ALGN | Tue, Nov 3, 2020 | 460.23 | 465.66 | 453.16 | 465.01 | 4972 | NASDAQ | ALGN | Mon, Nov 2, 2020 | 432.10 | 458.44 | 430.37 | 458.44 | 4971 | NASDAQ | ALGN | Fri, Oct 30, 2020 | 432.00 | 435.90 | 417.36 | 426.08 | 4970 | NASDAQ | ALGN | Thu, Oct 29, 2020 | 436.60 | 442.86 | 428.88 | 436.57 | 4969 | NASDAQ | ALGN | Wed, Oct 28, 2020 | 447.81 | 450.48 | 439.00 | 439.51 | 4968 | NASDAQ | ALGN | Tue, Oct 27, 2020 | 455.35 | 469.91 | 450.92 | 455.09 | 4967 | NASDAQ | ALGN | Mon, Oct 26, 2020 | 462.73 | 475.37 | 447.93 | 454.51 | 4966 | NASDAQ | ALGN | Fri, Oct 23, 2020 | 451.34 | 470.43 | 444.77 | 469.56 | 4965 | NASDAQ | ALGN | Thu, Oct 22, 2020 | 424.32 | 459.00 | 424.00 | 453.23 | 4964 | NASDAQ | ALGN | Wed, Oct 21, 2020 | 334.20 | 338.68 | 328.97 | 335.81 | 4963 | NASDAQ | ALGN | Tue, Oct 20, 2020 | 330.14 | 339.68 | 327.91 | 334.60 | 4962 | NASDAQ | ALGN | Mon, Oct 19, 2020 | 339.00 | 343.21 | 322.87 | 326.84 | 4961 | NASDAQ | ALGN | Fri, Oct 16, 2020 | 338.89 | 343.00 | 335.08 | 336.52 | 4960 | NASDAQ | ALGN | Thu, Oct 15, 2020 | 330.11 | 338.12 | 330.00 | 336.67 | 4959 | NASDAQ | ALGN | Wed, Oct 14, 2020 | 333.53 | 337.20 | 328.39 | 333.10 | 4958 | NASDAQ | ALGN | Tue, Oct 13, 2020 | 334.48 | 336.26 | 329.02 | 330.82 | 4957 | NASDAQ | ALGN | Mon, Oct 12, 2020 | 334.99 | 339.77 | 330.90 | 335.75 | 4956 | NASDAQ | ALGN | Fri, Oct 9, 2020 | 331.39 | 331.86 | 325.18 | 328.64 | 4955 | NASDAQ | ALGN | Thu, Oct 8, 2020 | 325.59 | 328.56 | 321.86 | 327.57 | 4954 | NASDAQ | ALGN | Wed, Oct 7, 2020 | 320.40 | 327.09 | 320.40 | 323.62 | 4953 | NASDAQ | ALGN | Tue, Oct 6, 2020 | 322.19 | 327.91 | 315.24 | 316.08 | 4952 | NASDAQ | ALGN | Mon, Oct 5, 2020 | 317.63 | 320.31 | 312.72 | 319.51 | 4951 | NASDAQ | ALGN | Fri, Oct 2, 2020 | 312.02 | 319.13 | 310.03 | 314.89 | 4950 | NASDAQ | ALGN | Thu, Oct 1, 2020 | 333.64 | 333.64 | 313.86 | 317.61 | 4949 | NASDAQ | ALGN | Wed, Sep 30, 2020 | 322.56 | 332.88 | 320.29 | 327.36 | 4948 | NASDAQ | ALGN | Tue, Sep 29, 2020 | 323.90 | 328.92 | 320.00 | 320.17 | 4947 | NASDAQ | ALGN | Mon, Sep 28, 2020 | 324.93 | 328.78 | 320.99 | 322.86 | 4946 | NASDAQ | ALGN | Fri, Sep 25, 2020 | 310.03 | 320.95 | 307.17 | 317.93 | 4945 | NASDAQ | ALGN | Thu, Sep 24, 2020 | 306.15 | 316.43 | 297.44 | 311.88 | 4944 | NASDAQ | ALGN | Wed, Sep 23, 2020 | 322.04 | 325.00 | 307.38 | 308.32 | 4943 | NASDAQ | ALGN | Tue, Sep 22, 2020 | 326.76 | 327.02 | 313.98 | 322.57 | 4942 | NASDAQ | ALGN | Mon, Sep 21, 2020 | 314.79 | 322.56 | 302.04 | 322.30 | 4941 | NASDAQ | ALGN | Fri, Sep 18, 2020 | 329.60 | 333.13 | 314.97 | 320.97 | 4940 | NASDAQ | ALGN | Thu, Sep 17, 2020 | 323.37 | 329.26 | 319.02 | 328.03 | 4939 | NASDAQ | ALGN | Wed, Sep 16, 2020 | 338.23 | 340.29 | 328.74 | 329.86 | 4938 | NASDAQ | ALGN | Tue, Sep 15, 2020 | 326.93 | 339.73 | 324.73 | 335.24 | 4937 | NASDAQ | ALGN | Mon, Sep 14, 2020 | 319.49 | 326.60 | 319.49 | 323.46 | 4936 | NASDAQ | ALGN | Fri, Sep 11, 2020 | 328.95 | 333.00 | 314.00 | 317.66 | 4935 | NASDAQ | ALGN | Thu, Sep 10, 2020 | 324.06 | 333.07 | 324.00 | 327.95 | 4934 | NASDAQ | ALGN | Wed, Sep 9, 2020 | 310.07 | 328.84 | 310.07 | 323.92 | 4933 | NASDAQ | ALGN | Tue, Sep 8, 2020 | 299.99 | 313.81 | 299.03 | 309.22 | 4932 | NASDAQ | ALGN | Fri, Sep 4, 2020 | 318.00 | 318.00 | 299.33 | 309.00 | 4931 | NASDAQ | ALGN | Thu, Sep 3, 2020 | 324.45 | 325.00 | 310.68 | 314.52 | 4930 | NASDAQ | ALGN | Wed, Sep 2, 2020 | 307.72 | 324.88 | 306.64 | 324.43 | 4929 | NASDAQ | ALGN | Tue, Sep 1, 2020 | 297.10 | 307.25 | 293.33 | 305.43 | 4928 | NASDAQ | ALGN | Mon, Aug 31, 2020 | 300.21 | 300.94 | 295.03 | 296.98 | 4927 | NASDAQ | ALGN | Fri, Aug 28, 2020 | 306.00 | 306.24 | 299.80 | 300.58 | 4926 | NASDAQ | ALGN | Thu, Aug 27, 2020 | 300.27 | 310.35 | 299.26 | 305.64 | 4925 | NASDAQ | ALGN | Wed, Aug 26, 2020 | 294.12 | 301.93 | 291.23 | 300.70 | 4924 | NASDAQ | ALGN | Tue, Aug 25, 2020 | 296.03 | 297.27 | 289.52 | 296.68 | 4923 | NASDAQ | ALGN | Mon, Aug 24, 2020 | 297.31 | 303.35 | 293.13 | 295.08 | 4922 | NASDAQ | ALGN | Fri, Aug 21, 2020 | 296.27 | 299.84 | 293.63 | 294.29 | 4921 | NASDAQ | ALGN | Thu, Aug 20, 2020 | 300.00 | 302.10 | 295.23 | 297.25 | 4920 | NASDAQ | ALGN | Wed, Aug 19, 2020 | 307.48 | 308.45 | 301.07 | 301.51 | 4919 | NASDAQ | ALGN | Tue, Aug 18, 2020 | 310.87 | 311.00 | 304.58 | 306.07 | 4918 | NASDAQ | ALGN | Mon, Aug 17, 2020 | 310.67 | 314.89 | 308.82 | 309.52 | 4917 | NASDAQ | ALGN | Fri, Aug 14, 2020 | 311.01 | 312.89 | 305.72 | 306.96 | 4916 | NASDAQ | ALGN | Thu, Aug 13, 2020 | 308.56 | 316.28 | 306.99 | 312.22 | 4915 | NASDAQ | ALGN | Wed, Aug 12, 2020 | 306.27 | 309.75 | 303.88 | 307.98 | 4914 | NASDAQ | ALGN | Tue, Aug 11, 2020 | 304.95 | 311.43 | 302.60 | 304.13 | 4913 | NASDAQ | ALGN | Mon, Aug 10, 2020 | 305.37 | 307.21 | 298.86 | 302.91 | 4912 | NASDAQ | ALGN | Fri, Aug 7, 2020 | 301.10 | 309.10 | 299.99 | 305.81 | 4911 | NASDAQ | ALGN | Thu, Aug 6, 2020 | 294.52 | 301.90 | 292.34 | 301.80 | 4910 | NASDAQ | ALGN | Wed, Aug 5, 2020 | 289.70 | 299.66 | 287.23 | 298.51 | 4909 | NASDAQ | ALGN | Tue, Aug 4, 2020 | 286.65 | 289.29 | 279.83 | 288.27 | 4908 | NASDAQ | ALGN | Mon, Aug 3, 2020 | 296.01 | 297.75 | 287.00 | 287.36 | 4907 | NASDAQ | ALGN | Fri, Jul 31, 2020 | 297.43 | 297.60 | 288.53 | 293.82 | 4906 | NASDAQ | ALGN | Thu, Jul 30, 2020 | 296.83 | 296.83 | 289.73 | 296.13 | 4905 | NASDAQ | ALGN | Wed, Jul 29, 2020 | 299.07 | 306.49 | 299.07 | 300.24 | 4904 | NASDAQ | ALGN | Tue, Jul 28, 2020 | 307.87 | 308.47 | 299.06 | 299.11 | 4903 | NASDAQ | ALGN | Mon, Jul 27, 2020 | 296.40 | 309.46 | 294.57 | 308.75 | 4902 | NASDAQ | ALGN | Fri, Jul 24, 2020 | 298.06 | 303.30 | 293.93 | 298.14 | 4901 | NASDAQ | ALGN | Thu, Jul 23, 2020 | 305.50 | 314.40 | 296.73 | 299.05 | 4900 | NASDAQ | ALGN | Wed, Jul 22, 2020 | 315.00 | 319.50 | 312.49 | 317.97 | 4899 | NASDAQ | ALGN | Tue, Jul 21, 2020 | 316.12 | 319.20 | 312.19 | 315.33 | 4898 | NASDAQ | ALGN | Mon, Jul 20, 2020 | 310.47 | 315.46 | 309.04 | 312.97 | 4897 | NASDAQ | ALGN | Fri, Jul 17, 2020 | 312.83 | 326.36 | 310.33 | 322.30 | 4896 | NASDAQ | ALGN | Thu, Jul 16, 2020 | 308.81 | 313.77 | 305.87 | 309.00 | 4895 | NASDAQ | ALGN | Wed, Jul 15, 2020 | 303.52 | 321.49 | 302.00 | 314.30 | 4894 | NASDAQ | ALGN | Tue, Jul 14, 2020 | 269.04 | 299.96 | 267.63 | 299.62 | 4893 | NASDAQ | ALGN | Mon, Jul 13, 2020 | 274.93 | 279.46 | 269.45 | 270.24 | 4892 | NASDAQ | ALGN | Fri, Jul 10, 2020 | 273.60 | 274.00 | 269.93 | 273.29 | 4891 | NASDAQ | ALGN | Thu, Jul 9, 2020 | 278.67 | 279.81 | 268.77 | 274.08 | 4890 | NASDAQ | ALGN | Wed, Jul 8, 2020 | 274.35 | 279.29 | 272.25 | 278.39 | 4889 | NASDAQ | ALGN | Tue, Jul 7, 2020 | 281.88 | 284.49 | 274.41 | 274.71 | 4888 | NASDAQ | ALGN | Mon, Jul 6, 2020 | 284.15 | 288.13 | 279.94 | 282.44 | 4887 | NASDAQ | ALGN | Thu, Jul 2, 2020 | 279.15 | 285.60 | 276.65 | 279.93 | 4886 | NASDAQ | ALGN | Wed, Jul 1, 2020 | 275.95 | 280.61 | 272.56 | 273.84 | 4885 | NASDAQ | ALGN | Tue, Jun 30, 2020 | 266.67 | 275.81 | 264.37 | 274.44 | 4884 | NASDAQ | ALGN | Mon, Jun 29, 2020 | 265.34 | 268.00 | 259.16 | 266.48 | 4883 | NASDAQ | ALGN | Fri, Jun 26, 2020 | 258.03 | 265.90 | 254.69 | 263.14 | 4882 | NASDAQ | ALGN | Thu, Jun 25, 2020 | 255.44 | 258.31 | 251.11 | 257.43 | 4881 | NASDAQ | ALGN | Wed, Jun 24, 2020 | 261.97 | 265.57 | 253.29 | 257.65 | 4880 | NASDAQ | ALGN | Tue, Jun 23, 2020 | 263.11 | 268.88 | 262.97 | 267.41 | 4879 | NASDAQ | ALGN | Mon, Jun 22, 2020 | 261.85 | 262.43 | 255.79 | 260.50 | 4878 | NASDAQ | ALGN | Fri, Jun 19, 2020 | 269.06 | 271.06 | 257.05 | 260.91 | 4877 | NASDAQ | ALGN | Thu, Jun 18, 2020 | 261.09 | 268.00 | 258.39 | 264.61 | 4876 | NASDAQ | ALGN | Wed, Jun 17, 2020 | 269.10 | 269.10 | 261.12 | 262.21 | 4875 | NASDAQ | ALGN | Tue, Jun 16, 2020 | 268.23 | 273.83 | 260.02 | 264.79 | 4874 | NASDAQ | ALGN | Mon, Jun 15, 2020 | 244.96 | 259.83 | 241.57 | 258.80 | 4873 | NASDAQ | ALGN | Fri, Jun 12, 2020 | 250.64 | 257.34 | 243.94 | 251.40 | 4872 | NASDAQ | ALGN | Thu, Jun 11, 2020 | 254.44 | 255.00 | 237.24 | 238.28 | 4871 | NASDAQ | ALGN | Wed, Jun 10, 2020 | 280.00 | 283.91 | 266.61 | 267.56 | 4870 | NASDAQ | ALGN | Tue, Jun 9, 2020 | 286.00 | 287.51 | 279.42 | 279.71 | 4869 | NASDAQ | ALGN | Mon, Jun 8, 2020 | 286.31 | 292.04 | 285.21 | 289.75 | 4868 | NASDAQ | ALGN | Fri, Jun 5, 2020 | 267.85 | 288.88 | 267.05 | 288.21 | 4867 | NASDAQ | ALGN | Thu, Jun 4, 2020 | 268.11 | 271.00 | 258.83 | 260.07 | 4866 | NASDAQ | ALGN | Wed, Jun 3, 2020 | 265.00 | 272.94 | 263.13 | 268.35 | 4865 | NASDAQ | ALGN | Tue, Jun 2, 2020 | 253.09 | 263.83 | 251.00 | 263.79 | 4864 | NASDAQ | ALGN | Mon, Jun 1, 2020 | 247.34 | 250.85 | 243.80 | 250.55 | 4863 | NASDAQ | ALGN | Fri, May 29, 2020 | 247.67 | 252.85 | 242.60 | 245.62 | 4862 | NASDAQ | ALGN | Thu, May 28, 2020 | 253.08 | 254.98 | 248.01 | 249.18 | 4861 | NASDAQ | ALGN | Wed, May 27, 2020 | 251.36 | 252.36 | 238.44 | 251.41 | 4860 | NASDAQ | ALGN | Tue, May 26, 2020 | 252.30 | 255.65 | 244.65 | 247.90 | 4859 | NASDAQ | ALGN | Fri, May 22, 2020 | 237.23 | 245.50 | 235.35 | 243.74 | 4858 | NASDAQ | ALGN | Thu, May 21, 2020 | 235.00 | 240.09 | 232.23 | 235.96 | 4857 | NASDAQ | ALGN | Wed, May 20, 2020 | 227.98 | 240.72 | 226.15 | 236.02 | 4856 | NASDAQ | ALGN | Tue, May 19, 2020 | 229.42 | 229.98 | 224.29 | 224.37 | 4855 | NASDAQ | ALGN | Mon, May 18, 2020 | 213.25 | 234.34 | 210.00 | 229.42 | 4854 | NASDAQ | ALGN | Fri, May 15, 2020 | 201.08 | 205.65 | 199.56 | 203.67 | 4853 | NASDAQ | ALGN | Thu, May 14, 2020 | 196.66 | 206.26 | 195.56 | 206.09 | 4852 | NASDAQ | ALGN | Wed, May 13, 2020 | 204.19 | 205.07 | 197.54 | 200.98 | 4851 | NASDAQ | ALGN | Tue, May 12, 2020 | 216.37 | 216.64 | 206.44 | 206.45 | 4850 | NASDAQ | ALGN | Mon, May 11, 2020 | 207.71 | 217.65 | 206.43 | 214.30 | 4849 | NASDAQ | ALGN | Fri, May 8, 2020 | 217.29 | 217.76 | 207.02 | 210.03 | 4848 | NASDAQ | ALGN | Thu, May 7, 2020 | 218.41 | 221.99 | 210.50 | 213.50 | 4847 | NASDAQ | ALGN | Wed, May 6, 2020 | 210.31 | 218.58 | 209.02 | 215.93 | 4846 | NASDAQ | ALGN | Tue, May 5, 2020 | 214.81 | 219.99 | 207.58 | 208.61 | 4845 | NASDAQ | ALGN | Mon, May 4, 2020 | 199.40 | 210.31 | 197.14 | 210.14 | 4844 | NASDAQ | ALGN | Fri, May 1, 2020 | 208.08 | 209.02 | 201.01 | 203.26 | 4843 | NASDAQ | ALGN | Thu, Apr 30, 2020 | 215.00 | 219.94 | 206.40 | 214.85 | 4842 | NASDAQ | ALGN | Wed, Apr 29, 2020 | 206.41 | 227.44 | 205.60 | 220.58 | 4841 | NASDAQ | ALGN | Tue, Apr 28, 2020 | 201.52 | 208.00 | 198.25 | 203.51 | 4840 | NASDAQ | ALGN | Mon, Apr 27, 2020 | 193.45 | 196.99 | 192.41 | 196.67 | 4839 | NASDAQ | ALGN | Fri, Apr 24, 2020 | 189.71 | 194.22 | 186.65 | 191.97 | 4838 | NASDAQ | ALGN | Thu, Apr 23, 2020 | 190.34 | 195.99 | 187.76 | 188.57 | 4837 | NASDAQ | ALGN | Wed, Apr 22, 2020 | 190.90 | 197.26 | 187.64 | 190.03 | 4836 | NASDAQ | ALGN | Tue, Apr 21, 2020 | 191.08 | 193.82 | 184.67 | 187.26 | 4835 | NASDAQ | ALGN | Mon, Apr 20, 2020 | 189.77 | 205.00 | 188.39 | 196.71 | 4834 | NASDAQ | ALGN | Fri, Apr 17, 2020 | 188.37 | 193.38 | 183.99 | 193.00 | 4833 | NASDAQ | ALGN | Thu, Apr 16, 2020 | 185.77 | 187.57 | 178.70 | 180.34 | 4832 | NASDAQ | ALGN | Wed, Apr 15, 2020 | 182.11 | 186.87 | 181.17 | 183.83 | 4831 | NASDAQ | ALGN | Tue, Apr 14, 2020 | 189.11 | 193.44 | 187.04 | 190.00 | 4830 | NASDAQ | ALGN | Mon, Apr 13, 2020 | 189.34 | 190.43 | 178.90 | 185.72 | 4829 | NASDAQ | ALGN | Thu, Apr 9, 2020 | 183.87 | 197.99 | 181.86 | 193.19 | 4828 | NASDAQ | ALGN | Wed, Apr 8, 2020 | 176.84 | 185.94 | 174.43 | 184.41 | 4827 | NASDAQ | ALGN | Tue, Apr 7, 2020 | 189.70 | 194.75 | 172.44 | 174.55 | 4826 | NASDAQ | ALGN | Mon, Apr 6, 2020 | 167.05 | 177.88 | 164.04 | 176.74 | 4825 | NASDAQ | ALGN | Fri, Apr 3, 2020 | 151.37 | 158.96 | 151.37 | 154.20 | 4824 | NASDAQ | ALGN | Thu, Apr 2, 2020 | 155.07 | 160.70 | 150.38 | 152.07 | 4823 | NASDAQ | ALGN | Wed, Apr 1, 2020 | 164.09 | 170.62 | 153.19 | 157.20 | 4822 | NASDAQ | ALGN | Tue, Mar 31, 2020 | 177.99 | 182.54 | 169.76 | 173.95 | 4821 | NASDAQ | ALGN | Mon, Mar 30, 2020 | 174.69 | 180.79 | 170.33 | 179.92 | 4820 | NASDAQ | ALGN | Fri, Mar 27, 2020 | 180.50 | 182.01 | 173.39 | 177.04 | 4819 | NASDAQ | ALGN | Thu, Mar 26, 2020 | 182.90 | 200.62 | 182.50 | 191.64 | 4818 | NASDAQ | ALGN | Wed, Mar 25, 2020 | 170.37 | 194.48 | 168.01 | 183.68 | 4817 | NASDAQ | ALGN | Tue, Mar 24, 2020 | 149.53 | 165.80 | 146.54 | 165.28 | 4816 | NASDAQ | ALGN | Mon, Mar 23, 2020 | 146.25 | 148.66 | 133.00 | 137.72 | 4815 | NASDAQ | ALGN | Fri, Mar 20, 2020 | 144.95 | 157.94 | 142.62 | 144.50 | 4814 | NASDAQ | ALGN | Thu, Mar 19, 2020 | 141.29 | 146.79 | 127.88 | 142.23 | 4813 | NASDAQ | ALGN | Wed, Mar 18, 2020 | 158.79 | 163.83 | 135.00 | 145.76 | 4812 | NASDAQ | ALGN | Tue, Mar 17, 2020 | 165.43 | 171.68 | 147.08 | 169.25 | 4811 | NASDAQ | ALGN | Mon, Mar 16, 2020 | 170.65 | 172.90 | 161.38 | 161.72 | 4810 | NASDAQ | ALGN | Fri, Mar 13, 2020 | 190.00 | 195.97 | 179.05 | 195.88 | 4809 | NASDAQ | ALGN | Thu, Mar 12, 2020 | 182.23 | 194.40 | 174.57 | 180.12 | 4808 | NASDAQ | ALGN | Wed, Mar 11, 2020 | 221.43 | 223.15 | 199.46 | 202.18 | 4807 | NASDAQ | ALGN | Tue, Mar 10, 2020 | 221.56 | 229.67 | 216.85 | 228.16 | 4806 | NASDAQ | ALGN | Mon, Mar 9, 2020 | 209.26 | 221.50 | 202.95 | 216.84 | 4805 | NASDAQ | ALGN | Fri, Mar 6, 2020 | 219.77 | 226.58 | 218.80 | 225.17 | 4804 | NASDAQ | ALGN | Thu, Mar 5, 2020 | 229.54 | 236.58 | 226.52 | 230.69 | 4803 | NASDAQ | ALGN | Wed, Mar 4, 2020 | 228.32 | 234.99 | 225.14 | 234.70 | 4802 | NASDAQ | ALGN | Tue, Mar 3, 2020 | 229.44 | 238.68 | 222.00 | 224.56 | 4801 | NASDAQ | ALGN | Mon, Mar 2, 2020 | 218.91 | 230.49 | 212.94 | 230.22 | 4800 | NASDAQ | ALGN | Fri, Feb 28, 2020 | 215.33 | 220.47 | 211.01 | 218.35 | 4799 | NASDAQ | ALGN | Thu, Feb 27, 2020 | 222.25 | 234.40 | 217.07 | 223.97 | 4798 | NASDAQ | ALGN | Wed, Feb 26, 2020 | 232.69 | 236.69 | 226.75 | 227.54 | 4797 | NASDAQ | ALGN | Tue, Feb 25, 2020 | 241.45 | 242.51 | 229.25 | 229.61 | 4796 | NASDAQ | ALGN | Mon, Feb 24, 2020 | 245.36 | 248.99 | 238.50 | 240.11 | 4795 | NASDAQ | ALGN | Fri, Feb 21, 2020 | 270.80 | 270.80 | 258.50 | 260.26 | 4794 | NASDAQ | ALGN | Thu, Feb 20, 2020 | 277.24 | 277.24 | 270.00 | 272.49 | 4793 | NASDAQ | ALGN | Wed, Feb 19, 2020 | 271.26 | 277.68 | 271.26 | 277.15 | 4792 | NASDAQ | ALGN | Tue, Feb 18, 2020 | 273.00 | 273.50 | 264.70 | 269.93 | 4791 | NASDAQ | ALGN | Fri, Feb 14, 2020 | 274.25 | 277.48 | 270.03 | 274.95 | 4790 | NASDAQ | ALGN | Thu, Feb 13, 2020 | 271.11 | 275.20 | 265.47 | 272.97 | 4789 | NASDAQ | ALGN | Wed, Feb 12, 2020 | 265.18 | 276.11 | 265.18 | 273.61 | 4788 | NASDAQ | ALGN | Tue, Feb 11, 2020 | 259.51 | 265.85 | 259.29 | 264.46 | 4787 | NASDAQ | ALGN | Mon, Feb 10, 2020 | 257.75 | 259.35 | 253.21 | 259.03 | 4786 | NASDAQ | ALGN | Fri, Feb 7, 2020 | 265.00 | 265.00 | 258.09 | 258.67 | 4785 | NASDAQ | ALGN | Thu, Feb 6, 2020 | 267.99 | 267.99 | 261.44 | 266.76 | 4784 | NASDAQ | ALGN | Wed, Feb 5, 2020 | 260.05 | 269.34 | 258.00 | 267.50 | 4783 | NASDAQ | ALGN | Tue, Feb 4, 2020 | 256.93 | 257.86 | 254.12 | 256.52 | 4782 | NASDAQ | ALGN | Mon, Feb 3, 2020 | 257.50 | 259.62 | 251.88 | 253.02 | 4781 | NASDAQ | ALGN | Fri, Jan 31, 2020 | 260.96 | 261.49 | 251.52 | 257.10 | 4780 | NASDAQ | ALGN | Thu, Jan 30, 2020 | 248.74 | 264.45 | 248.35 | 262.89 | 4779 | NASDAQ | ALGN | Wed, Jan 29, 2020 | 266.19 | 268.92 | 261.51 | 261.60 | 4778 | NASDAQ | ALGN | Tue, Jan 28, 2020 | 265.81 | 268.68 | 262.56 | 267.82 | 4777 | NASDAQ | ALGN | Mon, Jan 27, 2020 | 264.00 | 264.42 | 252.50 | 260.91 | 4776 | NASDAQ | ALGN | Fri, Jan 24, 2020 | 272.11 | 278.39 | 269.43 | 269.98 | 4775 | NASDAQ | ALGN | Thu, Jan 23, 2020 | 280.01 | 280.01 | 269.61 | 270.78 | 4774 | NASDAQ | ALGN | Wed, Jan 22, 2020 | 274.89 | 281.80 | 274.89 | 279.31 | 4773 | NASDAQ | ALGN | Tue, Jan 21, 2020 | 280.56 | 282.00 | 272.29 | 273.17 | 4772 | NASDAQ | ALGN | Fri, Jan 17, 2020 | 285.69 | 287.77 | 278.64 | 280.70 | 4771 | NASDAQ | ALGN | Thu, Jan 16, 2020 | 271.84 | 285.24 | 271.84 | 285.03 | 4770 | NASDAQ | ALGN | Wed, Jan 15, 2020 | 285.69 | 287.26 | 269.46 | 274.10 | 4769 | NASDAQ | ALGN | Tue, Jan 14, 2020 | 286.18 | 294.91 | 282.01 | 287.61 | 4768 | NASDAQ | ALGN | Mon, Jan 13, 2020 | 295.65 | 299.87 | 293.07 | 298.07 | 4767 | NASDAQ | ALGN | Fri, Jan 10, 2020 | 297.21 | 299.07 | 292.63 | 293.33 | 4766 | NASDAQ | ALGN | Thu, Jan 9, 2020 | 290.77 | 301.65 | 290.00 | 296.54 | 4765 | NASDAQ | ALGN | Wed, Jan 8, 2020 | 284.14 | 287.69 | 281.00 | 286.00 | 4764 | NASDAQ | ALGN | Tue, Jan 7, 2020 | 285.92 | 286.45 | 281.47 | 283.06 | 4763 | NASDAQ | ALGN | Mon, Jan 6, 2020 | 276.68 | 286.18 | 276.41 | 285.88 | 4762 | NASDAQ | ALGN | Fri, Jan 3, 2020 | 279.10 | 282.02 | 278.68 | 280.44 | 4761 | NASDAQ | ALGN | Thu, Jan 2, 2020 | 281.20 | 284.14 | 278.61 | 283.68 | 4760 | NASDAQ | ALGN | Tue, Dec 31, 2019 | 275.17 | 280.68 | 275.17 | 279.04 | 4759 | NASDAQ | ALGN | Mon, Dec 30, 2019 | 277.83 | 279.33 | 274.71 | 275.63 | 4758 | NASDAQ | ALGN | Fri, Dec 27, 2019 | 278.75 | 279.90 | 275.21 | 277.64 | 4757 | NASDAQ | ALGN | Thu, Dec 26, 2019 | 277.43 | 279.54 | 276.16 | 278.26 | 4756 | NASDAQ | ALGN | Tue, Dec 24, 2019 | 276.92 | 278.82 | 274.62 | 277.89 | 4755 | NASDAQ | ALGN | Mon, Dec 23, 2019 | 273.38 | 278.81 | 272.07 | 278.14 | 4754 | NASDAQ | ALGN | Fri, Dec 20, 2019 | 275.32 | 275.32 | 270.15 | 272.89 | 4753 | NASDAQ | ALGN | Thu, Dec 19, 2019 | 272.18 | 276.94 | 271.01 | 273.75 | 4752 | NASDAQ | ALGN | Wed, Dec 18, 2019 | 269.48 | 274.03 | 268.85 | 272.61 | 4751 | NASDAQ | ALGN | Tue, Dec 17, 2019 | 269.68 | 270.29 | 266.75 | 268.29 | 4750 | NASDAQ | ALGN | Mon, Dec 16, 2019 | 267.34 | 271.98 | 267.34 | 270.01 | 4749 | NASDAQ | ALGN | Fri, Dec 13, 2019 | 268.15 | 268.15 | 257.43 | 266.06 | 4748 | NASDAQ | ALGN | Thu, Dec 12, 2019 | 275.90 | 276.34 | 266.29 | 268.39 | 4747 | NASDAQ | ALGN | Wed, Dec 11, 2019 | 273.85 | 278.93 | 273.13 | 275.23 | 4746 | NASDAQ | ALGN | Tue, Dec 10, 2019 | 273.05 | 274.16 | 269.50 | 273.65 | 4745 | NASDAQ | ALGN | Mon, Dec 9, 2019 | 275.21 | 277.21 | 273.18 | 273.46 | 4744 | NASDAQ | ALGN | Fri, Dec 6, 2019 | 276.45 | 278.49 | 274.11 | 275.72 | 4743 | NASDAQ | ALGN | Thu, Dec 5, 2019 | 279.02 | 279.05 | 273.57 | 274.53 | 4742 | NASDAQ | ALGN | Wed, Dec 4, 2019 | 277.26 | 279.50 | 275.82 | 277.71 | 4741 | NASDAQ | ALGN | Tue, Dec 3, 2019 | 271.12 | 276.60 | 266.11 | 276.36 | 4740 | NASDAQ | ALGN | Mon, Dec 2, 2019 | 276.54 | 278.99 | 269.54 | 274.34 | 4739 | NASDAQ | ALGN | Fri, Nov 29, 2019 | 278.85 | 279.80 | 276.03 | 277.34 | 4738 | NASDAQ | ALGN | Wed, Nov 27, 2019 | 279.01 | 280.72 | 278.08 | 279.62 | 4737 | NASDAQ | ALGN | Tue, Nov 26, 2019 | 277.67 | 281.57 | 277.20 | 277.70 | 4736 | NASDAQ | ALGN | Mon, Nov 25, 2019 | 276.00 | 279.88 | 275.03 | 278.07 | 4735 | NASDAQ | ALGN | Fri, Nov 22, 2019 | 271.07 | 275.74 | 268.70 | 274.40 | 4734 | NASDAQ | ALGN | Thu, Nov 21, 2019 | 269.00 | 273.00 | 267.43 | 272.14 | 4733 | NASDAQ | ALGN | Wed, Nov 20, 2019 | 269.84 | 271.39 | 264.96 | 268.77 | 4732 | NASDAQ | ALGN | Tue, Nov 19, 2019 | 269.60 | 272.86 | 266.22 | 271.60 | 4731 | NASDAQ | ALGN | Mon, Nov 18, 2019 | 266.60 | 269.43 | 265.00 | 268.51 | 4730 | NASDAQ | ALGN | Fri, Nov 15, 2019 | 260.48 | 265.24 | 259.20 | 263.92 | 4729 | NASDAQ | ALGN | Thu, Nov 14, 2019 | 260.26 | 262.03 | 259.00 | 260.44 | 4728 | NASDAQ | ALGN | Wed, Nov 13, 2019 | 257.32 | 261.00 | 255.27 | 259.63 | 4727 | NASDAQ | ALGN | Tue, Nov 12, 2019 | 258.42 | 262.50 | 257.07 | 258.97 | 4726 | NASDAQ | ALGN | Mon, Nov 11, 2019 | 258.69 | 260.72 | 257.51 | 258.60 | 4725 | NASDAQ | ALGN | Fri, Nov 8, 2019 | 258.18 | 261.28 | 255.65 | 259.92 | 4724 | NASDAQ | ALGN | Thu, Nov 7, 2019 | 257.92 | 261.60 | 253.33 | 258.94 | 4723 | NASDAQ | ALGN | Wed, Nov 6, 2019 | 257.83 | 260.49 | 255.11 | 256.16 | 4722 | NASDAQ | ALGN | Tue, Nov 5, 2019 | 258.87 | 260.20 | 255.15 | 257.91 | 4721 | NASDAQ | ALGN | Mon, Nov 4, 2019 | 258.25 | 260.17 | 255.11 | 258.77 | 4720 | NASDAQ | ALGN | Fri, Nov 1, 2019 | 254.31 | 261.87 | 253.02 | 257.04 | 4719 | NASDAQ | ALGN | Thu, Oct 31, 2019 | 251.32 | 253.41 | 246.16 | 252.29 | 4718 | NASDAQ | ALGN | Wed, Oct 30, 2019 | 255.65 | 255.65 | 247.54 | 252.71 | 4717 | NASDAQ | ALGN | Tue, Oct 29, 2019 | 250.04 | 257.63 | 248.26 | 256.12 | 4716 | NASDAQ | ALGN | Mon, Oct 28, 2019 | 243.36 | 253.45 | 241.76 | 250.42 | 4715 | NASDAQ | ALGN | Fri, Oct 25, 2019 | 245.84 | 246.40 | 240.23 | 243.38 | 4714 | NASDAQ | ALGN | Thu, Oct 24, 2019 | 237.30 | 251.70 | 233.41 | 249.47 | 4713 | NASDAQ | ALGN | Wed, Oct 23, 2019 | 213.19 | 218.17 | 210.73 | 217.50 | 4712 | NASDAQ | ALGN | Tue, Oct 22, 2019 | 210.98 | 215.60 | 207.03 | 213.60 | 4711 | NASDAQ | ALGN | Mon, Oct 21, 2019 | 214.88 | 215.60 | 209.60 | 210.04 | 4710 | NASDAQ | ALGN | Fri, Oct 18, 2019 | 214.68 | 216.43 | 210.28 | 213.88 | 4709 | NASDAQ | ALGN | Thu, Oct 17, 2019 | 212.23 | 215.20 | 209.22 | 213.92 | 4708 | NASDAQ | ALGN | Wed, Oct 16, 2019 | 208.98 | 212.65 | 208.10 | 211.56 | 4707 | NASDAQ | ALGN | Tue, Oct 15, 2019 | 208.02 | 209.48 | 205.06 | 209.25 | 4706 | NASDAQ | ALGN | Mon, Oct 14, 2019 | 200.16 | 206.70 | 199.80 | 205.15 | 4705 | NASDAQ | ALGN | Fri, Oct 11, 2019 | 195.51 | 202.52 | 194.00 | 200.16 | 4704 | NASDAQ | ALGN | Thu, Oct 10, 2019 | 189.25 | 194.19 | 189.17 | 194.17 | 4703 | NASDAQ | ALGN | Wed, Oct 9, 2019 | 186.08 | 191.56 | 185.65 | 189.21 | 4702 | NASDAQ | ALGN | Tue, Oct 8, 2019 | 183.43 | 186.07 | 181.26 | 184.30 | 4701 | NASDAQ | ALGN | Mon, Oct 7, 2019 | 177.85 | 186.49 | 177.18 | 184.51 | 4700 | NASDAQ | ALGN | Fri, Oct 4, 2019 | 184.59 | 187.67 | 180.12 | 181.59 | 4699 | NASDAQ | ALGN | Thu, Oct 3, 2019 | 179.90 | 184.86 | 175.52 | 184.77 | 4698 | NASDAQ | ALGN | Wed, Oct 2, 2019 | 181.44 | 182.00 | 176.36 | 179.75 | 4697 | NASDAQ | ALGN | Tue, Oct 1, 2019 | 181.22 | 183.34 | 179.53 | 182.30 | 4696 | NASDAQ | ALGN | Mon, Sep 30, 2019 | 176.51 | 181.85 | 176.51 | 180.92 | 4695 | NASDAQ | ALGN | Fri, Sep 27, 2019 | 179.59 | 181.84 | 175.18 | 175.84 | 4694 | NASDAQ | ALGN | Thu, Sep 26, 2019 | 183.27 | 185.00 | 176.63 | 178.99 | 4693 | NASDAQ | ALGN | Wed, Sep 25, 2019 | 184.51 | 184.51 | 180.37 | 183.63 | 4692 | NASDAQ | ALGN | Tue, Sep 24, 2019 | 185.18 | 186.57 | 182.24 | 183.05 | 4691 | NASDAQ | ALGN | Mon, Sep 23, 2019 | 186.37 | 186.83 | 182.51 | 183.89 | 4690 | NASDAQ | ALGN | Fri, Sep 20, 2019 | 180.80 | 188.16 | 179.50 | 186.54 | 4689 | NASDAQ | ALGN | Thu, Sep 19, 2019 | 176.00 | 180.89 | 175.75 | 180.36 | 4688 | NASDAQ | ALGN | Wed, Sep 18, 2019 | 177.59 | 178.02 | 171.85 | 175.80 | 4687 | NASDAQ | ALGN | Tue, Sep 17, 2019 | 179.37 | 180.65 | 177.39 | 177.65 | 4686 | NASDAQ | ALGN | Mon, Sep 16, 2019 | 176.46 | 179.54 | 176.16 | 179.37 | 4685 | NASDAQ | ALGN | Fri, Sep 13, 2019 | 176.01 | 179.49 | 175.00 | 177.47 | 4684 | NASDAQ | ALGN | Thu, Sep 12, 2019 | 181.65 | 184.55 | 174.06 | 174.62 | 4683 | NASDAQ | ALGN | Wed, Sep 11, 2019 | 177.90 | 181.85 | 175.27 | 179.77 | 4682 | NASDAQ | ALGN | Tue, Sep 10, 2019 | 172.89 | 179.35 | 171.32 | 177.80 | 4681 | NASDAQ | ALGN | Mon, Sep 9, 2019 | 175.93 | 176.20 | 169.84 | 173.16 | 4680 | NASDAQ | ALGN | Fri, Sep 6, 2019 | 178.65 | 179.13 | 174.38 | 175.06 | 4679 | NASDAQ | ALGN | Thu, Sep 5, 2019 | 178.73 | 182.36 | 176.86 | 177.11 | 4678 | NASDAQ | ALGN | Wed, Sep 4, 2019 | 180.35 | 180.72 | 174.24 | 176.38 | 4677 | NASDAQ | ALGN | Tue, Sep 3, 2019 | 182.23 | 182.50 | 177.25 | 177.91 | 4676 | NASDAQ | ALGN | Fri, Aug 30, 2019 | 182.00 | 186.21 | 180.55 | 183.11 | 4675 | NASDAQ | ALGN | Thu, Aug 29, 2019 | 178.46 | 181.25 | 178.30 | 179.95 | 4674 | NASDAQ | ALGN | Wed, Aug 28, 2019 | 172.50 | 178.83 | 172.11 | 177.31 | 4673 | NASDAQ | ALGN | Tue, Aug 27, 2019 | 175.92 | 177.24 | 173.06 | 173.80 | 4672 | NASDAQ | ALGN | Mon, Aug 26, 2019 | 177.17 | 179.08 | 173.30 | 175.19 | 4671 | NASDAQ | ALGN | Fri, Aug 23, 2019 | 177.84 | 179.15 | 173.80 | 175.04 | 4670 | NASDAQ | ALGN | Thu, Aug 22, 2019 | 177.91 | 181.41 | 177.45 | 178.97 | 4669 | NASDAQ | ALGN | Wed, Aug 21, 2019 | 176.07 | 177.52 | 175.02 | 176.39 | 4668 | NASDAQ | ALGN | Tue, Aug 20, 2019 | 177.24 | 178.16 | 174.30 | 174.50 | 4667 | NASDAQ | ALGN | Mon, Aug 19, 2019 | 180.00 | 181.33 | 176.59 | 177.62 | 4666 | NASDAQ | ALGN | Fri, Aug 16, 2019 | 175.93 | 178.34 | 175.46 | 177.29 | 4665 | NASDAQ | ALGN | Thu, Aug 15, 2019 | 175.61 | 176.78 | 172.62 | 174.37 | 4664 | NASDAQ | ALGN | Wed, Aug 14, 2019 | 179.22 | 179.86 | 174.09 | 174.29 | 4663 | NASDAQ | ALGN | Tue, Aug 13, 2019 | 178.97 | 183.80 | 178.63 | 182.00 | 4662 | NASDAQ | ALGN | Mon, Aug 12, 2019 | 181.26 | 182.77 | 178.60 | 179.68 | 4661 | NASDAQ | ALGN | Fri, Aug 9, 2019 | 186.14 | 189.37 | 183.06 | 183.33 | 4660 | NASDAQ | ALGN | Thu, Aug 8, 2019 | 185.20 | 189.75 | 185.20 | 188.28 | 4659 | NASDAQ | ALGN | Wed, Aug 7, 2019 | 186.13 | 186.13 | 181.95 | 183.90 | 4658 | NASDAQ | ALGN | Tue, Aug 6, 2019 | 189.07 | 192.33 | 186.51 | 188.44 | 4657 | NASDAQ | ALGN | Mon, Aug 5, 2019 | 194.40 | 194.40 | 186.29 | 188.37 | 4656 | NASDAQ | ALGN | Fri, Aug 2, 2019 | 201.55 | 205.40 | 198.68 | 199.38 | 4655 | NASDAQ | ALGN | Thu, Aug 1, 2019 | 209.09 | 209.99 | 200.26 | 202.35 | 4654 | NASDAQ | ALGN | Wed, Jul 31, 2019 | 208.00 | 214.50 | 206.27 | 209.08 | 4653 | NASDAQ | ALGN | Tue, Jul 30, 2019 | 194.65 | 204.05 | 194.02 | 203.25 | 4652 | NASDAQ | ALGN | Mon, Jul 29, 2019 | 199.18 | 199.64 | 189.60 | 196.05 | 4651 | NASDAQ | ALGN | Fri, Jul 26, 2019 | 203.26 | 203.52 | 195.71 | 198.84 | 4650 | NASDAQ | ALGN | Thu, Jul 25, 2019 | 219.28 | 219.71 | 197.11 | 200.90 | 4649 | NASDAQ | ALGN | Wed, Jul 24, 2019 | 272.00 | 279.95 | 270.11 | 275.16 | 4648 | NASDAQ | ALGN | Tue, Jul 23, 2019 | 274.88 | 276.14 | 269.29 | 272.96 | 4647 | NASDAQ | ALGN | Mon, Jul 22, 2019 | 281.43 | 283.26 | 274.01 | 274.47 | 4646 | NASDAQ | ALGN | Fri, Jul 19, 2019 | 284.57 | 288.36 | 280.00 | 281.21 | 4645 | NASDAQ | ALGN | Thu, Jul 18, 2019 | 283.47 | 288.81 | 281.51 | 283.37 | 4644 | NASDAQ | ALGN | Wed, Jul 17, 2019 | 281.68 | 286.28 | 281.00 | 283.91 | 4643 | NASDAQ | ALGN | Tue, Jul 16, 2019 | 284.65 | 284.90 | 279.99 | 281.07 | 4642 | NASDAQ | ALGN | Mon, Jul 15, 2019 | 283.57 | 286.91 | 280.56 | 284.30 | 4641 | NASDAQ | ALGN | Fri, Jul 12, 2019 | 284.02 | 285.17 | 278.73 | 283.91 | 4640 | NASDAQ | ALGN | Thu, Jul 11, 2019 | 290.00 | 290.78 | 280.15 | 282.59 | 4639 | NASDAQ | ALGN | Wed, Jul 10, 2019 | 278.20 | 287.95 | 278.20 | 286.65 | 4638 | NASDAQ | ALGN | Tue, Jul 9, 2019 | 269.63 | 275.92 | 269.63 | 275.41 | 4637 | NASDAQ | ALGN | Mon, Jul 8, 2019 | 270.50 | 273.89 | 268.89 | 272.24 | 4636 | NASDAQ | ALGN | Fri, Jul 5, 2019 | 274.11 | 276.94 | 268.66 | 273.29 | 4635 | NASDAQ | ALGN | Wed, Jul 3, 2019 | 272.33 | 277.47 | 271.38 | 275.00 | 4634 | NASDAQ | ALGN | Tue, Jul 2, 2019 | 272.65 | 276.22 | 269.57 | 270.90 | 4633 | NASDAQ | ALGN | Mon, Jul 1, 2019 | 280.64 | 283.33 | 271.25 | 271.68 | 4632 | NASDAQ | ALGN | Fri, Jun 28, 2019 | 270.05 | 274.17 | 263.70 | 273.70 | 4631 | NASDAQ | ALGN | Thu, Jun 27, 2019 | 269.08 | 273.42 | 268.29 | 269.95 | 4630 | NASDAQ | ALGN | Wed, Jun 26, 2019 | 277.24 | 277.24 | 267.36 | 268.08 | 4629 | NASDAQ | ALGN | Tue, Jun 25, 2019 | 282.27 | 283.87 | 274.86 | 276.02 | 4628 | NASDAQ | ALGN | Mon, Jun 24, 2019 | 283.50 | 286.75 | 279.46 | 282.16 | 4627 | NASDAQ | ALGN | Fri, Jun 21, 2019 | 294.91 | 294.91 | 283.15 | 283.56 | 4626 | NASDAQ | ALGN | Thu, Jun 20, 2019 | 302.03 | 302.03 | 294.30 | 295.67 | 4625 | NASDAQ | ALGN | Wed, Jun 19, 2019 | 290.30 | 298.17 | 287.13 | 296.84 | 4624 | NASDAQ | ALGN | Tue, Jun 18, 2019 | 293.23 | 297.05 | 288.95 | 290.06 | 4623 | NASDAQ | ALGN | Mon, Jun 17, 2019 | 306.66 | 306.66 | 282.40 | 288.68 | 4622 | NASDAQ | ALGN | Fri, Jun 14, 2019 | 312.08 | 312.08 | 305.02 | 305.70 | 4621 | NASDAQ | ALGN | Thu, Jun 13, 2019 | 312.82 | 313.88 | 307.26 | 311.07 | 4620 | NASDAQ | ALGN | Wed, Jun 12, 2019 | 309.30 | 312.17 | 304.65 | 312.00 | 4619 | NASDAQ | ALGN | Tue, Jun 11, 2019 | 315.41 | 316.71 | 304.55 | 308.88 | 4618 | NASDAQ | ALGN | Mon, Jun 10, 2019 | 309.34 | 319.17 | 309.34 | 315.03 | 4617 | NASDAQ | ALGN | Fri, Jun 7, 2019 | 309.43 | 314.00 | 306.63 | 307.66 | 4616 | NASDAQ | ALGN | Thu, Jun 6, 2019 | 302.03 | 308.59 | 298.48 | 306.36 | 4615 | NASDAQ | ALGN | Wed, Jun 5, 2019 | 301.92 | 303.74 | 295.32 | 302.57 | 4614 | NASDAQ | ALGN | Tue, Jun 4, 2019 | 288.16 | 298.08 | 286.63 | 297.24 | 4613 | NASDAQ | ALGN | Mon, Jun 3, 2019 | 282.86 | 285.27 | 276.05 | 283.32 | 4612 | NASDAQ | ALGN | Fri, May 31, 2019 | 277.88 | 289.61 | 272.60 | 284.35 | 4611 | NASDAQ | ALGN | Thu, May 30, 2019 | 297.89 | 303.90 | 293.78 | 296.68 | 4610 | NASDAQ | ALGN | Wed, May 29, 2019 | 302.37 | 302.37 | 293.82 | 297.41 | 4609 | NASDAQ | ALGN | Tue, May 28, 2019 | 311.07 | 317.34 | 304.31 | 304.81 | 4608 | NASDAQ | ALGN | Fri, May 24, 2019 | 309.59 | 312.90 | 306.82 | 311.47 | 4607 | NASDAQ | ALGN | Thu, May 23, 2019 | 315.13 | 315.82 | 305.59 | 307.85 | 4606 | NASDAQ | ALGN | Wed, May 22, 2019 | 321.04 | 323.00 | 315.89 | 318.82 | 4605 | NASDAQ | ALGN | Tue, May 21, 2019 | 322.50 | 326.21 | 319.14 | 319.68 | 4604 | NASDAQ | ALGN | Mon, May 20, 2019 | 319.55 | 322.69 | 313.58 | 319.68 | 4603 | NASDAQ | ALGN | Fri, May 17, 2019 | 328.20 | 330.72 | 321.71 | 322.61 | 4602 | NASDAQ | ALGN | Thu, May 16, 2019 | 326.00 | 334.64 | 326.00 | 330.87 | 4601 | NASDAQ | ALGN | Wed, May 15, 2019 | 319.00 | 328.66 | 316.01 | 325.71 | 4600 | NASDAQ | ALGN | Tue, May 14, 2019 | 312.25 | 323.18 | 312.08 | 320.09 | 4599 | NASDAQ | ALGN | Mon, May 13, 2019 | 312.27 | 317.94 | 308.15 | 310.15 | 4598 | NASDAQ | ALGN | Fri, May 10, 2019 | 322.15 | 324.77 | 314.00 | 321.93 | 4597 | NASDAQ | ALGN | Thu, May 9, 2019 | 318.55 | 325.57 | 313.73 | 323.25 | 4596 | NASDAQ | ALGN | Wed, May 8, 2019 | 324.27 | 325.00 | 318.52 | 322.87 | 4595 | NASDAQ | ALGN | Tue, May 7, 2019 | 324.19 | 328.44 | 320.68 | 325.51 | 4594 | NASDAQ | ALGN | Mon, May 6, 2019 | 320.80 | 329.59 | 317.20 | 329.46 | 4593 | NASDAQ | ALGN | Fri, May 3, 2019 | 328.86 | 333.17 | 327.27 | 331.08 | 4592 | NASDAQ | ALGN | Thu, May 2, 2019 | 320.70 | 332.00 | 318.56 | 325.88 | 4591 | NASDAQ | ALGN | Wed, May 1, 2019 | 325.26 | 327.86 | 320.51 | 321.34 | 4590 | NASDAQ | ALGN | Tue, Apr 30, 2019 | 318.52 | 325.37 | 318.00 | 324.68 | 4589 | NASDAQ | ALGN | Mon, Apr 29, 2019 | 318.24 | 321.35 | 315.62 | 317.50 | 4588 | NASDAQ | ALGN | Fri, Apr 26, 2019 | 298.75 | 318.19 | 297.90 | 317.98 | 4587 | NASDAQ | ALGN | Thu, Apr 25, 2019 | 294.10 | 316.00 | 286.61 | 296.74 | 4586 | NASDAQ | ALGN | Wed, Apr 24, 2019 | 296.00 | 298.32 | 291.73 | 297.08 | 4585 | NASDAQ | ALGN | Tue, Apr 23, 2019 | 292.10 | 298.85 | 289.01 | 296.08 | 4584 | NASDAQ | ALGN | Mon, Apr 22, 2019 | 279.38 | 292.33 | 278.15 | 290.63 | 4583 | NASDAQ | ALGN | Thu, Apr 18, 2019 | 276.33 | 281.50 | 272.36 | 281.49 | 4582 | NASDAQ | ALGN | Wed, Apr 17, 2019 | 290.09 | 290.80 | 271.66 | 273.68 | 4581 | NASDAQ | ALGN | Tue, Apr 16, 2019 | 293.59 | 295.63 | 285.04 | 288.38 | 4580 | NASDAQ | ALGN | Mon, Apr 15, 2019 | 293.83 | 299.04 | 291.16 | 292.55 | 4579 | NASDAQ | ALGN | Fri, Apr 12, 2019 | 290.62 | 297.87 | 290.62 | 293.08 | 4578 | NASDAQ | ALGN | Thu, Apr 11, 2019 | 290.92 | 292.20 | 286.68 | 289.66 | 4577 | NASDAQ | ALGN | Wed, Apr 10, 2019 | 286.39 | 291.82 | 286.29 | 290.12 | 4576 | NASDAQ | ALGN | Tue, Apr 9, 2019 | 290.00 | 290.00 | 283.01 | 285.25 | 4575 | NASDAQ | ALGN | Mon, Apr 8, 2019 | 295.55 | 295.70 | 289.75 | 292.71 | 4574 | NASDAQ | ALGN | Fri, Apr 5, 2019 | 291.00 | 301.09 | 291.00 | 295.88 | 4573 | NASDAQ | ALGN | Thu, Apr 4, 2019 | 289.92 | 291.11 | 283.19 | 287.96 | 4572 | NASDAQ | ALGN | Wed, Apr 3, 2019 | 293.44 | 296.00 | 288.62 | 289.27 | 4571 | NASDAQ | ALGN | Tue, Apr 2, 2019 | 285.75 | 292.69 | 284.10 | 292.03 | 4570 | NASDAQ | ALGN | Mon, Apr 1, 2019 | 287.44 | 290.89 | 281.52 | 285.15 | 4569 | NASDAQ | ALGN | Fri, Mar 29, 2019 | 281.36 | 284.61 | 277.79 | 284.33 | 4568 | NASDAQ | ALGN | Thu, Mar 28, 2019 | 270.24 | 274.70 | 266.54 | 273.91 | 4567 | NASDAQ | ALGN | Wed, Mar 27, 2019 | 274.27 | 276.04 | 262.87 | 268.96 | 4566 | NASDAQ | ALGN | Tue, Mar 26, 2019 | 275.25 | 277.45 | 272.77 | 274.27 | 4565 | NASDAQ | ALGN | Mon, Mar 25, 2019 | 269.75 | 274.32 | 266.00 | 271.02 | 4564 | NASDAQ | ALGN | Fri, Mar 22, 2019 | 279.64 | 279.64 | 269.23 | 269.62 | 4563 | NASDAQ | ALGN | Thu, Mar 21, 2019 | 265.45 | 281.63 | 265.35 | 280.73 | 4562 | NASDAQ | ALGN | Wed, Mar 20, 2019 | 258.93 | 266.06 | 258.01 | 265.68 | 4561 | NASDAQ | ALGN | Tue, Mar 19, 2019 | 256.43 | 260.93 | 256.03 | 259.29 | 4560 | NASDAQ | ALGN | Mon, Mar 18, 2019 | 252.70 | 254.12 | 248.17 | 253.73 | 4559 | NASDAQ | ALGN | Fri, Mar 15, 2019 | 248.48 | 256.83 | 247.94 | 252.33 | 4558 | NASDAQ | ALGN | Thu, Mar 14, 2019 | 249.93 | 251.40 | 244.55 | 247.59 | 4557 | NASDAQ | ALGN | Wed, Mar 13, 2019 | 251.28 | 254.03 | 247.49 | 252.13 | 4556 | NASDAQ | ALGN | Tue, Mar 12, 2019 | 243.96 | 251.67 | 243.00 | 250.84 | 4555 | NASDAQ | ALGN | Mon, Mar 11, 2019 | 231.56 | 243.94 | 231.56 | 243.36 | 4554 | NASDAQ | ALGN | Fri, Mar 8, 2019 | 228.64 | 231.73 | 224.58 | 230.84 | 4553 | NASDAQ | ALGN | Thu, Mar 7, 2019 | 231.00 | 233.08 | 227.26 | 230.75 | 4552 | NASDAQ | ALGN | Wed, Mar 6, 2019 | 237.79 | 240.50 | 229.62 | 231.45 | 4551 | NASDAQ | ALGN | Tue, Mar 5, 2019 | 244.94 | 244.94 | 233.90 | 239.22 | 4550 | NASDAQ | ALGN | Mon, Mar 4, 2019 | 264.37 | 266.21 | 252.30 | 256.31 | 4549 | NASDAQ | ALGN | Fri, Mar 1, 2019 | 261.24 | 264.46 | 258.96 | 263.35 | 4548 | NASDAQ | ALGN | Thu, Feb 28, 2019 | 258.08 | 259.75 | 254.55 | 258.97 | 4547 | NASDAQ | ALGN | Wed, Feb 27, 2019 | 258.23 | 262.16 | 257.29 | 258.25 | 4546 | NASDAQ | ALGN | Tue, Feb 26, 2019 | 261.13 | 262.35 | 256.33 | 259.79 | 4545 | NASDAQ | ALGN | Mon, Feb 25, 2019 | 255.52 | 263.64 | 255.52 | 262.35 | 4544 | NASDAQ | ALGN | Fri, Feb 22, 2019 | 251.52 | 254.24 | 248.85 | 253.99 | 4543 | NASDAQ | ALGN | Thu, Feb 21, 2019 | 252.98 | 252.98 | 247.46 | 250.23 | 4542 | NASDAQ | ALGN | Wed, Feb 20, 2019 | 255.23 | 256.49 | 250.91 | 253.79 | 4541 | NASDAQ | ALGN | Tue, Feb 19, 2019 | 254.96 | 257.59 | 254.01 | 255.24 | 4540 | NASDAQ | ALGN | Fri, Feb 15, 2019 | 253.04 | 255.68 | 251.39 | 254.96 | 4539 | NASDAQ | ALGN | Thu, Feb 14, 2019 | 247.04 | 252.91 | 246.47 | 250.75 | 4538 | NASDAQ | ALGN | Wed, Feb 13, 2019 | 256.99 | 259.93 | 248.84 | 251.85 | 4537 | NASDAQ | ALGN | Tue, Feb 12, 2019 | 246.80 | 256.77 | 246.36 | 254.32 | 4536 | NASDAQ | ALGN | Mon, Feb 11, 2019 | 242.86 | 247.54 | 242.07 | 244.57 | 4535 | NASDAQ | ALGN | Fri, Feb 8, 2019 | 236.78 | 241.41 | 234.23 | 241.26 | 4534 | NASDAQ | ALGN | Thu, Feb 7, 2019 | 241.89 | 244.55 | 238.26 | 239.45 | 4533 | NASDAQ | ALGN | Wed, Feb 6, 2019 | 244.00 | 246.46 | 240.70 | 244.04 | 4532 | NASDAQ | ALGN | Tue, Feb 5, 2019 | 241.85 | 246.20 | 241.42 | 243.51 | 4531 | NASDAQ | ALGN | Mon, Feb 4, 2019 | 243.91 | 245.23 | 239.70 | 244.54 | 4530 | NASDAQ | ALGN | Fri, Feb 1, 2019 | 248.08 | 248.75 | 239.00 | 244.00 | 4529 | NASDAQ | ALGN | Thu, Jan 31, 2019 | 233.57 | 249.24 | 231.76 | 248.95 | 4528 | NASDAQ | ALGN | Wed, Jan 30, 2019 | 208.74 | 234.44 | 207.99 | 232.83 | 4527 | NASDAQ | ALGN | Tue, Jan 29, 2019 | 222.16 | 223.84 | 216.52 | 222.03 | 4526 | NASDAQ | ALGN | Mon, Jan 28, 2019 | 224.50 | 225.92 | 220.15 | 221.49 | 4525 | NASDAQ | ALGN | Fri, Jan 25, 2019 | 222.61 | 228.97 | 221.48 | 227.22 | 4524 | NASDAQ | ALGN | Thu, Jan 24, 2019 | 218.25 | 224.08 | 218.25 | 220.67 | 4523 | NASDAQ | ALGN | Wed, Jan 23, 2019 | 217.00 | 221.21 | 215.14 | 217.22 | 4522 | NASDAQ | ALGN | Tue, Jan 22, 2019 | 220.68 | 221.65 | 213.90 | 216.16 | 4521 | NASDAQ | ALGN | Fri, Jan 18, 2019 | 216.00 | 223.60 | 212.89 | 220.09 | 4520 | NASDAQ | ALGN | Thu, Jan 17, 2019 | 206.87 | 215.85 | 206.78 | 212.67 | 4519 | NASDAQ | ALGN | Wed, Jan 16, 2019 | 197.07 | 208.51 | 195.38 | 206.79 | 4518 | NASDAQ | ALGN | Tue, Jan 15, 2019 | 194.90 | 197.50 | 191.93 | 195.05 | 4517 | NASDAQ | ALGN | Mon, Jan 14, 2019 | 196.54 | 198.34 | 193.23 | 193.94 | 4516 | NASDAQ | ALGN | Fri, Jan 11, 2019 | 201.60 | 201.60 | 195.63 | 198.25 | 4515 | NASDAQ | ALGN | Thu, Jan 10, 2019 | 198.99 | 205.99 | 194.12 | 202.64 | 4514 | NASDAQ | ALGN | Wed, Jan 9, 2019 | 194.26 | 207.00 | 194.26 | 200.32 | 4513 | NASDAQ | ALGN | Tue, Jan 8, 2019 | 191.35 | 194.99 | 187.59 | 192.95 | 4512 | NASDAQ | ALGN | Mon, Jan 7, 2019 | 187.41 | 190.77 | 184.51 | 189.92 | 4511 | NASDAQ | ALGN | Fri, Jan 4, 2019 | 181.68 | 190.39 | 177.93 | 186.71 | 4510 | NASDAQ | ALGN | Thu, Jan 3, 2019 | 200.03 | 200.77 | 183.62 | 184.78 | 4509 | NASDAQ | ALGN | Wed, Jan 2, 2019 | 205.32 | 207.16 | 200.54 | 202.12 | 4508 | NASDAQ | ALGN | Mon, Dec 31, 2018 | 209.89 | 214.18 | 206.68 | 209.43 | 4507 | NASDAQ | ALGN | Fri, Dec 28, 2018 | 212.86 | 212.86 | 206.00 | 208.29 | 4506 | NASDAQ | ALGN | Thu, Dec 27, 2018 | 207.00 | 211.33 | 201.49 | 211.33 | 4505 | NASDAQ | ALGN | Wed, Dec 26, 2018 | 194.71 | 212.30 | 194.24 | 210.99 | 4504 | NASDAQ | ALGN | Mon, Dec 24, 2018 | 196.57 | 198.19 | 190.75 | 193.72 | 4503 | NASDAQ | ALGN | Fri, Dec 21, 2018 | 199.14 | 201.05 | 193.28 | 199.17 | 4502 | NASDAQ | ALGN | Thu, Dec 20, 2018 | 201.19 | 204.70 | 191.24 | 197.78 | 4501 | NASDAQ | ALGN | Wed, Dec 19, 2018 | 209.14 | 212.88 | 198.51 | 201.56 | 4500 | NASDAQ | ALGN | Tue, Dec 18, 2018 | 209.84 | 213.32 | 206.51 | 209.50 | 4499 | NASDAQ | ALGN | Mon, Dec 17, 2018 | 213.03 | 213.98 | 205.22 | 206.97 | 4498 | NASDAQ | ALGN | Fri, Dec 14, 2018 | 214.27 | 217.45 | 212.01 | 215.57 | 4497 | NASDAQ | ALGN | Thu, Dec 13, 2018 | 218.82 | 221.46 | 212.94 | 217.23 | 4496 | NASDAQ | ALGN | Wed, Dec 12, 2018 | 225.08 | 226.90 | 219.13 | 219.29 | 4495 | NASDAQ | ALGN | Tue, Dec 11, 2018 | 220.07 | 223.80 | 218.02 | 220.27 | 4494 | NASDAQ | ALGN | Mon, Dec 10, 2018 | 209.79 | 218.17 | 208.99 | 216.66 | 4493 | NASDAQ | ALGN | Fri, Dec 7, 2018 | 217.39 | 220.40 | 208.87 | 210.28 | 4492 | NASDAQ | ALGN | Thu, Dec 6, 2018 | 211.11 | 219.38 | 210.11 | 219.34 | 4491 | NASDAQ | ALGN | Tue, Dec 4, 2018 | 234.22 | 234.36 | 218.31 | 220.95 | 4490 | NASDAQ | ALGN | Mon, Dec 3, 2018 | 234.40 | 235.92 | 228.00 | 235.70 | 4489 | NASDAQ | ALGN | Fri, Nov 30, 2018 | 227.69 | 232.97 | 224.72 | 229.89 | 4488 | NASDAQ | ALGN | Thu, Nov 29, 2018 | 234.53 | 235.50 | 224.13 | 228.70 | 4487 | NASDAQ | ALGN | Wed, Nov 28, 2018 | 222.25 | 236.35 | 222.02 | 235.59 | 4486 | NASDAQ | ALGN | Tue, Nov 27, 2018 | 221.79 | 225.39 | 219.63 | 220.71 | 4485 | NASDAQ | ALGN | Mon, Nov 26, 2018 | 221.92 | 229.37 | 221.10 | 223.38 | 4484 | NASDAQ | ALGN | Fri, Nov 23, 2018 | 214.88 | 220.56 | 214.21 | 218.87 | 4483 | NASDAQ | ALGN | Wed, Nov 21, 2018 | 213.94 | 219.75 | 212.24 | 215.72 | 4482 | NASDAQ | ALGN | Tue, Nov 20, 2018 | 189.03 | 212.82 | 188.57 | 210.10 | 4481 | NASDAQ | ALGN | Mon, Nov 19, 2018 | 223.85 | 223.95 | 203.70 | 204.43 | 4480 | NASDAQ | ALGN | Fri, Nov 16, 2018 | 220.76 | 228.80 | 218.71 | 225.41 | 4479 | NASDAQ | ALGN | Thu, Nov 15, 2018 | 219.52 | 223.45 | 216.01 | 222.77 | 4478 | NASDAQ | ALGN | Wed, Nov 14, 2018 | 221.90 | 225.19 | 217.35 | 219.99 | 4477 | NASDAQ | ALGN | Tue, Nov 13, 2018 | 219.00 | 225.21 | 217.30 | 219.32 | 4476 | NASDAQ | ALGN | Mon, Nov 12, 2018 | 231.97 | 232.99 | 214.62 | 217.29 | 4475 | NASDAQ | ALGN | Fri, Nov 9, 2018 | 243.42 | 244.62 | 226.37 | 235.96 | 4474 | NASDAQ | ALGN | Thu, Nov 8, 2018 | 245.54 | 246.80 | 240.95 | 245.67 | 4473 | NASDAQ | ALGN | Wed, Nov 7, 2018 | 231.72 | 248.50 | 230.77 | 245.31 | 4472 | NASDAQ | ALGN | Tue, Nov 6, 2018 | 227.50 | 231.23 | 225.43 | 229.37 | 4471 | NASDAQ | ALGN | Mon, Nov 5, 2018 | 227.77 | 229.64 | 221.54 | 228.12 | 4470 | NASDAQ | ALGN | Fri, Nov 2, 2018 | 233.53 | 239.48 | 227.02 | 229.75 | 4469 | NASDAQ | ALGN | Thu, Nov 1, 2018 | 222.27 | 231.38 | 220.54 | 230.95 | 4468 | NASDAQ | ALGN | Wed, Oct 31, 2018 | 226.49 | 229.76 | 220.26 | 221.20 | 4467 | NASDAQ | ALGN | Tue, Oct 30, 2018 | 216.80 | 225.62 | 215.00 | 223.01 | 4466 | NASDAQ | ALGN | Mon, Oct 29, 2018 | 234.76 | 235.49 | 212.02 | 217.94 | 4465 | NASDAQ | ALGN | Fri, Oct 26, 2018 | 228.00 | 237.59 | 218.01 | 230.13 | 4464 | NASDAQ | ALGN | Thu, Oct 25, 2018 | 231.23 | 235.50 | 203.12 | 232.07 | 4463 | NASDAQ | ALGN | Wed, Oct 24, 2018 | 311.08 | 315.98 | 290.21 | 290.83 | 4462 | NASDAQ | ALGN | Tue, Oct 23, 2018 | 305.90 | 313.30 | 295.78 | 311.69 | 4461 | NASDAQ | ALGN | Mon, Oct 22, 2018 | 313.70 | 318.01 | 306.01 | 314.22 | 4460 | NASDAQ | ALGN | Fri, Oct 19, 2018 | 326.29 | 327.71 | 310.46 | 312.79 | 4459 | NASDAQ | ALGN | Thu, Oct 18, 2018 | 331.85 | 333.22 | 317.52 | 323.06 | 4458 | NASDAQ | ALGN | Wed, Oct 17, 2018 | 338.81 | 339.95 | 329.01 | 332.83 | 4457 | NASDAQ | ALGN | Tue, Oct 16, 2018 | 321.25 | 335.34 | 320.65 | 334.94 | 4456 | NASDAQ | ALGN | Mon, Oct 15, 2018 | 326.53 | 327.48 | 316.42 | 317.43 | 4455 | NASDAQ | ALGN | Fri, Oct 12, 2018 | 326.13 | 329.18 | 317.12 | 327.50 | 4454 | NASDAQ | ALGN | Thu, Oct 11, 2018 | 312.30 | 325.37 | 309.18 | 312.86 | 4453 | NASDAQ | ALGN | Wed, Oct 10, 2018 | 336.28 | 336.62 | 315.33 | 316.03 | 4452 | NASDAQ | ALGN | Tue, Oct 9, 2018 | 341.59 | 346.77 | 336.02 | 340.97 | 4451 | NASDAQ | ALGN | Mon, Oct 8, 2018 | 350.12 | 352.95 | 333.08 | 342.87 | 4450 | NASDAQ | ALGN | Fri, Oct 5, 2018 | 356.20 | 364.79 | 345.24 | 353.11 | 4449 | NASDAQ | ALGN | Thu, Oct 4, 2018 | 373.57 | 375.14 | 355.38 | 357.89 | 4448 | NASDAQ | ALGN | Wed, Oct 3, 2018 | 379.94 | 381.00 | 372.47 | 375.26 | 4447 | NASDAQ | ALGN | Tue, Oct 2, 2018 | 390.52 | 390.52 | 374.56 | 376.17 | 4446 | NASDAQ | ALGN | Mon, Oct 1, 2018 | 393.36 | 397.85 | 390.00 | 391.52 | 4445 | NASDAQ | ALGN | Fri, Sep 28, 2018 | 389.85 | 395.23 | 387.96 | 391.22 | 4444 | NASDAQ | ALGN | Thu, Sep 27, 2018 | 391.00 | 395.16 | 387.68 | 389.97 | 4443 | NASDAQ | ALGN | Wed, Sep 26, 2018 | 392.73 | 395.16 | 386.04 | 389.23 | 4442 | NASDAQ | ALGN | Tue, Sep 25, 2018 | 390.00 | 398.88 | 389.08 | 392.98 | 4441 | NASDAQ | ALGN | Mon, Sep 24, 2018 | 379.00 | 391.92 | 377.31 | 388.96 | 4440 | NASDAQ | ALGN | Fri, Sep 21, 2018 | 381.84 | 384.24 | 378.43 | 380.84 | 4439 | NASDAQ | ALGN | Thu, Sep 20, 2018 | 381.19 | 385.48 | 375.93 | 379.84 | 4438 | NASDAQ | ALGN | Wed, Sep 19, 2018 | 386.40 | 388.67 | 377.14 | 379.94 | 4437 | NASDAQ | ALGN | Tue, Sep 18, 2018 | 378.38 | 386.89 | 378.38 | 385.96 | 4436 | NASDAQ | ALGN | Mon, Sep 17, 2018 | 390.54 | 393.98 | 377.56 | 378.37 | 4435 | NASDAQ | ALGN | Fri, Sep 14, 2018 | 383.31 | 391.60 | 381.99 | 390.16 | 4434 | NASDAQ | ALGN | Thu, Sep 13, 2018 | 383.87 | 388.79 | 377.55 | 379.64 | 4433 | NASDAQ | ALGN | Wed, Sep 12, 2018 | 382.90 | 385.24 | 374.24 | 381.83 | 4432 | NASDAQ | ALGN | Tue, Sep 11, 2018 | 373.36 | 382.98 | 371.00 | 382.80 | 4431 | NASDAQ | ALGN | Mon, Sep 10, 2018 | 370.89 | 376.49 | 367.41 | 374.78 | 4430 | NASDAQ | ALGN | Fri, Sep 7, 2018 | 368.76 | 374.52 | 365.20 | 368.64 | 4429 | NASDAQ | ALGN | Thu, Sep 6, 2018 | 373.55 | 376.61 | 367.09 | 370.82 | 4428 | NASDAQ | ALGN | Wed, Sep 5, 2018 | 384.92 | 384.92 | 366.08 | 372.91 | 4427 | NASDAQ | ALGN | Tue, Sep 4, 2018 | 386.64 | 388.90 | 381.11 | 385.33 | 4426 | NASDAQ | ALGN | Fri, Aug 31, 2018 | 388.43 | 392.69 | 384.51 | 386.49 | 4425 | NASDAQ | ALGN | Thu, Aug 30, 2018 | 383.08 | 391.37 | 383.00 | 387.05 | 4424 | NASDAQ | ALGN | Wed, Aug 29, 2018 | 384.40 | 391.25 | 382.26 | 385.43 | 4423 | NASDAQ | ALGN | Tue, Aug 28, 2018 | 382.56 | 390.19 | 378.16 | 382.25 | 4422 | NASDAQ | ALGN | Mon, Aug 27, 2018 | 370.00 | 383.70 | 369.12 | 381.87 | 4421 | NASDAQ | ALGN | Fri, Aug 24, 2018 | 365.09 | 370.56 | 363.27 | 367.60 | 4420 | NASDAQ | ALGN | Thu, Aug 23, 2018 | 361.00 | 366.72 | 360.93 | 363.59 | 4419 | NASDAQ | ALGN | Wed, Aug 22, 2018 | 354.02 | 362.20 | 352.39 | 361.36 | 4418 | NASDAQ | ALGN | Tue, Aug 21, 2018 | 353.01 | 357.40 | 351.52 | 355.89 | 4417 | NASDAQ | ALGN | Mon, Aug 20, 2018 | 358.00 | 358.92 | 351.88 | 352.28 | 4416 | NASDAQ | ALGN | Fri, Aug 17, 2018 | 350.11 | 358.71 | 342.30 | 357.30 | 4415 | NASDAQ | ALGN | Thu, Aug 16, 2018 | 353.00 | 355.00 | 344.35 | 351.20 | 4414 | NASDAQ | ALGN | Wed, Aug 15, 2018 | 366.73 | 368.49 | 349.80 | 350.45 | 4413 | NASDAQ | ALGN | Tue, Aug 14, 2018 | 361.28 | 368.80 | 361.28 | 368.66 | 4412 | NASDAQ | ALGN | Mon, Aug 13, 2018 | 364.48 | 369.04 | 361.54 | 362.28 | 4411 | NASDAQ | ALGN | Fri, Aug 10, 2018 | 363.71 | 369.67 | 362.48 | 364.53 | 4410 | NASDAQ | ALGN | Thu, Aug 9, 2018 | 366.81 | 371.61 | 363.50 | 366.87 | 4409 | NASDAQ | ALGN | Wed, Aug 8, 2018 | 366.13 | 367.35 | 363.31 | 366.21 | 4408 | NASDAQ | ALGN | Tue, Aug 7, 2018 | 369.55 | 373.66 | 365.00 | 365.58 | 4407 | NASDAQ | ALGN | Mon, Aug 6, 2018 | 362.11 | 370.45 | 362.11 | 369.55 | 4406 | NASDAQ | ALGN | Fri, Aug 3, 2018 | 368.52 | 369.49 | 356.13 | 363.51 | 4405 | NASDAQ | ALGN | Thu, Aug 2, 2018 | 351.00 | 369.02 | 350.51 | 367.92 | 4404 | NASDAQ | ALGN | Wed, Aug 1, 2018 | 356.65 | 361.29 | 352.60 | 353.70 | 4403 | NASDAQ | ALGN | Tue, Jul 31, 2018 | 348.88 | 358.56 | 341.91 | 356.65 | 4402 | NASDAQ | ALGN | Mon, Jul 30, 2018 | 353.50 | 356.03 | 341.24 | 348.58 | 4401 | NASDAQ | ALGN | Fri, Jul 27, 2018 | 364.51 | 365.55 | 349.13 | 353.77 | 4400 | NASDAQ | ALGN | Thu, Jul 26, 2018 | 377.61 | 380.00 | 354.74 | 363.02 | 4399 | NASDAQ | ALGN | Wed, Jul 25, 2018 | 374.69 | 383.46 | 373.00 | 381.77 | 4398 | NASDAQ | ALGN | Tue, Jul 24, 2018 | 378.96 | 384.75 | 369.76 | 372.59 | 4397 | NASDAQ | ALGN | Mon, Jul 23, 2018 | 375.50 | 385.00 | 368.74 | 377.50 | 4396 | NASDAQ | ALGN | Fri, Jul 20, 2018 | 371.06 | 378.98 | 369.58 | 375.38 | 4395 | NASDAQ | ALGN | Thu, Jul 19, 2018 | 369.88 | 373.49 | 365.00 | 370.32 | 4394 | NASDAQ | ALGN | Wed, Jul 18, 2018 | 373.86 | 375.33 | 367.81 | 372.31 | 4393 | NASDAQ | ALGN | Tue, Jul 17, 2018 | 359.59 | 371.05 | 357.46 | 370.53 | 4392 | NASDAQ | ALGN | Mon, Jul 16, 2018 | 365.00 | 366.32 | 358.02 | 362.28 | 4391 | NASDAQ | ALGN | Fri, Jul 13, 2018 | 364.00 | 368.97 | 361.29 | 363.45 | 4390 | NASDAQ | ALGN | Thu, Jul 12, 2018 | 350.31 | 363.04 | 350.31 | 362.82 | 4389 | NASDAQ | ALGN | Wed, Jul 11, 2018 | 346.98 | 352.40 | 345.50 | 348.87 | 4388 | NASDAQ | ALGN | Tue, Jul 10, 2018 | 350.00 | 352.83 | 347.25 | 351.45 | 4387 | NASDAQ | ALGN | Mon, Jul 9, 2018 | 350.58 | 354.12 | 345.44 | 348.97 | 4386 | NASDAQ | ALGN | Fri, Jul 6, 2018 | 341.39 | 349.70 | 338.80 | 347.47 | 4385 | NASDAQ | ALGN | Thu, Jul 5, 2018 | 342.18 | 343.23 | 333.57 | 341.38 | 4384 | NASDAQ | ALGN | Tue, Jul 3, 2018 | 341.10 | 344.52 | 337.11 | 338.68 | 4383 | NASDAQ | ALGN | Mon, Jul 2, 2018 | 334.90 | 341.05 | 332.01 | 340.28 | 4382 | NASDAQ | ALGN | Fri, Jun 29, 2018 | 345.71 | 346.13 | 341.70 | 342.14 | 4381 | NASDAQ | ALGN | Thu, Jun 28, 2018 | 340.57 | 345.90 | 334.44 | 343.80 | 4380 | NASDAQ | ALGN | Wed, Jun 27, 2018 | 352.42 | 356.47 | 342.26 | 342.78 | 4379 | NASDAQ | ALGN | Tue, Jun 26, 2018 | 349.27 | 357.69 | 348.30 | 352.42 | 4378 | NASDAQ | ALGN | Mon, Jun 25, 2018 | 350.00 | 350.47 | 341.28 | 346.30 | 4377 | NASDAQ | ALGN | Fri, Jun 22, 2018 | 361.57 | 363.96 | 347.15 | 353.27 | 4376 | NASDAQ | ALGN | Thu, Jun 21, 2018 | 365.66 | 369.00 | 359.15 | 359.60 | 4375 | NASDAQ | ALGN | Wed, Jun 20, 2018 | 368.01 | 369.20 | 362.69 | 364.70 | 4374 | NASDAQ | ALGN | Tue, Jun 19, 2018 | 366.20 | 369.08 | 358.67 | 365.24 | 4373 | NASDAQ | ALGN | Mon, Jun 18, 2018 | 361.01 | 371.55 | 357.11 | 370.10 | 4372 | NASDAQ | ALGN | Fri, Jun 15, 2018 | 364.81 | 366.89 | 358.27 | 362.66 | 4371 | NASDAQ | ALGN | Thu, Jun 14, 2018 | 364.35 | 370.47 | 363.70 | 366.27 | 4370 | NASDAQ | ALGN | Wed, Jun 13, 2018 | 356.00 | 365.76 | 354.59 | 363.49 | 4369 | NASDAQ | ALGN | Tue, Jun 12, 2018 | 349.60 | 355.98 | 349.29 | 354.25 | 4368 | NASDAQ | ALGN | Mon, Jun 11, 2018 | 345.28 | 349.79 | 343.72 | 348.44 | 4367 | NASDAQ | ALGN | Fri, Jun 8, 2018 | 337.03 | 347.44 | 333.00 | 346.67 | 4366 | NASDAQ | ALGN | Thu, Jun 7, 2018 | 346.86 | 347.85 | 333.30 | 339.32 | 4365 | NASDAQ | ALGN | Wed, Jun 6, 2018 | 347.25 | 347.97 | 342.83 | 346.37 | 4364 | NASDAQ | ALGN | Tue, Jun 5, 2018 | 343.21 | 346.55 | 341.54 | 346.08 | 4363 | NASDAQ | ALGN | Mon, Jun 4, 2018 | 335.54 | 343.88 | 333.22 | 343.20 | 4362 | NASDAQ | ALGN | Fri, Jun 1, 2018 | 333.17 | 335.35 | 325.28 | 333.09 | 4361 | NASDAQ | ALGN | Thu, May 31, 2018 | 331.70 | 338.50 | 330.21 | 331.95 | 4360 | NASDAQ | ALGN | Wed, May 30, 2018 | 327.92 | 333.34 | 327.23 | 331.45 | 4359 | NASDAQ | ALGN | Tue, May 29, 2018 | 318.19 | 326.82 | 317.86 | 326.18 | 4358 | NASDAQ | ALGN | Fri, May 25, 2018 | 318.08 | 322.67 | 316.38 | 318.54 | 4357 | NASDAQ | ALGN | Thu, May 24, 2018 | 310.13 | 318.59 | 308.01 | 317.04 | 4356 | NASDAQ | ALGN | Wed, May 23, 2018 | 297.86 | 308.67 | 297.17 | 308.20 | 4355 | NASDAQ | ALGN | Tue, May 22, 2018 | 305.96 | 306.11 | 294.00 | 297.86 | 4354 | NASDAQ | ALGN | Mon, May 21, 2018 | 300.00 | 304.99 | 299.47 | 302.46 | 4353 | NASDAQ | ALGN | Fri, May 18, 2018 | 293.49 | 299.46 | 292.76 | 298.00 | 4352 | NASDAQ | ALGN | Thu, May 17, 2018 | 289.52 | 294.91 | 287.73 | 292.72 | 4351 | NASDAQ | ALGN | Wed, May 16, 2018 | 283.50 | 292.82 | 281.61 | 287.96 | 4350 | NASDAQ | ALGN | Tue, May 15, 2018 | 283.53 | 284.26 | 276.81 | 283.77 | 4349 | NASDAQ | ALGN | Mon, May 14, 2018 | 286.99 | 296.47 | 284.75 | 286.42 | 4348 | NASDAQ | ALGN | Fri, May 11, 2018 | 278.29 | 288.36 | 277.99 | 286.49 | 4347 | NASDAQ | ALGN | Thu, May 10, 2018 | 268.01 | 280.25 | 267.13 | 277.73 | 4346 | NASDAQ | ALGN | Wed, May 9, 2018 | 265.49 | 270.60 | 265.49 | 268.00 | 4345 | NASDAQ | ALGN | Tue, May 8, 2018 | 263.54 | 266.08 | 260.23 | 265.46 | 4344 | NASDAQ | ALGN | Mon, May 7, 2018 | 259.25 | 267.04 | 259.23 | 265.03 | 4343 | NASDAQ | ALGN | Fri, May 4, 2018 | 251.99 | 260.26 | 246.38 | 258.97 | 4342 | NASDAQ | ALGN | Thu, May 3, 2018 | 249.00 | 255.41 | 244.40 | 255.14 | 4341 | NASDAQ | ALGN | Wed, May 2, 2018 | 250.40 | 252.93 | 249.17 | 249.47 | 4340 | NASDAQ | ALGN | Tue, May 1, 2018 | 249.21 | 252.69 | 247.51 | 251.34 | 4339 | NASDAQ | ALGN | Mon, Apr 30, 2018 | 258.63 | 258.63 | 249.58 | 249.85 | 4338 | NASDAQ | ALGN | Fri, Apr 27, 2018 | 259.99 | 260.84 | 251.48 | 257.90 | 4337 | NASDAQ | ALGN | Thu, Apr 26, 2018 | 261.99 | 266.10 | 242.71 | 259.89 | 4336 | NASDAQ | ALGN | Wed, Apr 25, 2018 | 238.47 | 245.78 | 234.40 | 245.63 | 4335 | NASDAQ | ALGN | Tue, Apr 24, 2018 | 248.62 | 251.47 | 235.83 | 239.66 | 4334 | NASDAQ | ALGN | Mon, Apr 23, 2018 | 248.63 | 251.37 | 245.01 | 247.20 | 4333 | NASDAQ | ALGN | Fri, Apr 20, 2018 | 253.38 | 256.66 | 245.41 | 247.07 | 4332 | NASDAQ | ALGN | Thu, Apr 19, 2018 | 265.82 | 267.02 | 250.27 | 252.78 | 4331 | NASDAQ | ALGN | Wed, Apr 18, 2018 | 274.00 | 280.23 | 270.57 | 277.05 | 4330 | NASDAQ | ALGN | Tue, Apr 17, 2018 | 269.17 | 274.52 | 267.78 | 272.65 | 4329 | NASDAQ | ALGN | Mon, Apr 16, 2018 | 264.77 | 268.32 | 263.02 | 265.50 | 4328 | NASDAQ | ALGN | Fri, Apr 13, 2018 | 266.22 | 267.21 | 259.50 | 261.72 | 4327 | NASDAQ | ALGN | Thu, Apr 12, 2018 | 259.62 | 264.88 | 258.47 | 263.76 | 4326 | NASDAQ | ALGN | Wed, Apr 11, 2018 | 255.58 | 260.46 | 254.53 | 257.02 | 4325 | NASDAQ | ALGN | Tue, Apr 10, 2018 | 254.17 | 259.96 | 252.34 | 258.27 | 4324 | NASDAQ | ALGN | Mon, Apr 9, 2018 | 248.37 | 255.26 | 247.62 | 249.06 | 4323 | NASDAQ | ALGN | Fri, Apr 6, 2018 | 252.40 | 255.72 | 243.20 | 245.23 | 4322 | NASDAQ | ALGN | Thu, Apr 5, 2018 | 251.32 | 259.73 | 251.32 | 255.35 | 4321 | NASDAQ | ALGN | Wed, Apr 4, 2018 | 239.72 | 250.02 | 238.50 | 248.93 | 4320 | NASDAQ | ALGN | Tue, Apr 3, 2018 | 244.01 | 248.09 | 240.08 | 243.62 | 4319 | NASDAQ | ALGN | Mon, Apr 2, 2018 | 251.00 | 254.80 | 238.17 | 242.69 | 4318 | NASDAQ | ALGN | Thu, Mar 29, 2018 | 245.98 | 257.47 | 243.08 | 251.13 | 4317 | NASDAQ | ALGN | Wed, Mar 28, 2018 | 248.52 | 248.90 | 241.03 | 244.42 | 4316 | NASDAQ | ALGN | Tue, Mar 27, 2018 | 263.98 | 264.74 | 245.82 | 248.30 | 4315 | NASDAQ | ALGN | Mon, Mar 26, 2018 | 254.00 | 261.87 | 250.15 | 261.52 | 4314 | NASDAQ | ALGN | Fri, Mar 23, 2018 | 260.13 | 265.84 | 250.28 | 250.92 | 4313 | NASDAQ | ALGN | Thu, Mar 22, 2018 | 266.55 | 269.80 | 260.00 | 260.13 | 4312 | NASDAQ | ALGN | Wed, Mar 21, 2018 | 270.67 | 271.99 | 267.20 | 270.14 | 4311 | NASDAQ | ALGN | Tue, Mar 20, 2018 | 266.92 | 270.67 | 264.77 | 270.40 | 4310 | NASDAQ | ALGN | Mon, Mar 19, 2018 | 268.65 | 274.40 | 262.13 | 265.39 | 4309 | NASDAQ | ALGN | Fri, Mar 16, 2018 | 273.76 | 274.15 | 267.57 | 270.41 | 4308 | NASDAQ | ALGN | Thu, Mar 15, 2018 | 272.23 | 276.14 | 269.76 | 272.87 | 4307 | NASDAQ | ALGN | Wed, Mar 14, 2018 | 271.29 | 274.07 | 269.27 | 272.48 | 4306 | NASDAQ | ALGN | Tue, Mar 13, 2018 | 276.56 | 276.98 | 267.29 | 269.71 | 4305 | NASDAQ | ALGN | Mon, Mar 12, 2018 | 272.07 | 277.32 | 271.13 | 275.61 | 4304 | NASDAQ | ALGN | Fri, Mar 9, 2018 | 270.00 | 273.22 | 269.99 | 271.74 | 4303 | NASDAQ | ALGN | Thu, Mar 8, 2018 | 264.92 | 268.69 | 263.57 | 268.18 | 4302 | NASDAQ | ALGN | Wed, Mar 7, 2018 | 252.46 | 263.92 | 252.13 | 262.90 | 4301 | NASDAQ | ALGN | Tue, Mar 6, 2018 | 256.01 | 257.39 | 252.16 | 255.97 | 4300 | NASDAQ | ALGN | Mon, Mar 5, 2018 | 252.84 | 256.64 | 247.64 | 255.49 | 4299 | NASDAQ | ALGN | Fri, Mar 2, 2018 | 243.65 | 254.89 | 241.30 | 253.71 | 4298 | NASDAQ | ALGN | Thu, Mar 1, 2018 | 255.00 | 259.84 | 244.15 | 245.55 | 4297 | NASDAQ | ALGN | Wed, Feb 28, 2018 | 264.90 | 267.78 | 262.44 | 262.52 | 4296 | NASDAQ | ALGN | Tue, Feb 27, 2018 | 265.48 | 267.27 | 263.50 | 263.87 | 4295 | NASDAQ | ALGN | Mon, Feb 26, 2018 | 266.80 | 268.40 | 262.42 | 266.58 | 4294 | NASDAQ | ALGN | Fri, Feb 23, 2018 | 261.99 | 266.80 | 258.14 | 265.07 | 4293 | NASDAQ | ALGN | Thu, Feb 22, 2018 | 254.16 | 262.33 | 253.26 | 259.68 | 4292 | NASDAQ | ALGN | Wed, Feb 21, 2018 | 255.36 | 262.82 | 252.00 | 252.14 | 4291 | NASDAQ | ALGN | Tue, Feb 20, 2018 | 250.57 | 259.75 | 250.50 | 255.45 | 4290 | NASDAQ | ALGN | Fri, Feb 16, 2018 | 253.85 | 255.39 | 249.04 | 251.50 | 4289 | NASDAQ | ALGN | Thu, Feb 15, 2018 | 250.00 | 253.71 | 245.39 | 252.77 | 4288 | NASDAQ | ALGN | Wed, Feb 14, 2018 | 231.98 | 246.90 | 231.35 | 246.34 | 4287 | NASDAQ | ALGN | Tue, Feb 13, 2018 | 230.76 | 236.70 | 229.68 | 233.73 | 4286 | NASDAQ | ALGN | Mon, Feb 12, 2018 | 233.25 | 235.00 | 225.91 | 233.13 | 4285 | NASDAQ | ALGN | Fri, Feb 9, 2018 | 223.75 | 232.41 | 219.11 | 229.37 | 4284 | NASDAQ | ALGN | Thu, Feb 8, 2018 | 233.57 | 233.96 | 220.70 | 220.71 | 4283 | NASDAQ | ALGN | Wed, Feb 7, 2018 | 241.00 | 242.22 | 233.60 | 234.33 | 4282 | NASDAQ | ALGN | Tue, Feb 6, 2018 | 232.71 | 245.65 | 228.00 | 241.45 | 4281 | NASDAQ | ALGN | Mon, Feb 5, 2018 | 252.21 | 259.14 | 241.66 | 242.40 | 4280 | NASDAQ | ALGN | Fri, Feb 2, 2018 | 251.57 | 262.57 | 250.86 | 257.38 | 4279 | NASDAQ | ALGN | Thu, Feb 1, 2018 | 261.59 | 262.65 | 252.20 | 255.57 | 4278 | NASDAQ | ALGN | Wed, Jan 31, 2018 | 261.01 | 270.60 | 248.21 | 262.00 | 4277 | NASDAQ | ALGN | Tue, Jan 30, 2018 | 270.45 | 272.00 | 245.00 | 270.08 | 4276 | NASDAQ | ALGN | Mon, Jan 29, 2018 | 284.45 | 284.97 | 268.16 | 276.77 | 4275 | NASDAQ | ALGN | Fri, Jan 26, 2018 | 275.16 | 287.32 | 273.27 | 283.97 | 4274 | NASDAQ | ALGN | Thu, Jan 25, 2018 | 273.70 | 276.23 | 270.00 | 273.56 | 4273 | NASDAQ | ALGN | Wed, Jan 24, 2018 | 273.52 | 274.39 | 267.60 | 272.28 | 4272 | NASDAQ | ALGN | Tue, Jan 23, 2018 | 267.00 | 276.99 | 266.88 | 272.16 | 4271 | NASDAQ | ALGN | Mon, Jan 22, 2018 | 269.64 | 271.73 | 258.92 | 267.10 | 4270 | NASDAQ | ALGN | Fri, Jan 19, 2018 | 268.10 | 269.75 | 263.20 | 269.46 | 4269 | NASDAQ | ALGN | Thu, Jan 18, 2018 | 272.25 | 272.69 | 266.51 | 270.70 | 4268 | NASDAQ | ALGN | Wed, Jan 17, 2018 | 265.16 | 273.60 | 264.25 | 272.25 | 4267 | NASDAQ | ALGN | Tue, Jan 16, 2018 | 262.12 | 268.18 | 260.56 | 263.88 | 4266 | NASDAQ | ALGN | Fri, Jan 12, 2018 | 254.10 | 259.95 | 250.01 | 258.43 | 4265 | NASDAQ | ALGN | Thu, Jan 11, 2018 | 248.00 | 253.20 | 246.01 | 252.91 | 4264 | NASDAQ | ALGN | Wed, Jan 10, 2018 | 249.15 | 250.89 | 243.28 | 248.31 | 4263 | NASDAQ | ALGN | Tue, Jan 9, 2018 | 250.00 | 253.64 | 250.00 | 251.44 | 4262 | NASDAQ | ALGN | Mon, Jan 8, 2018 | 242.00 | 250.99 | 241.04 | 248.90 | 4261 | NASDAQ | ALGN | Fri, Jan 5, 2018 | 234.88 | 243.30 | 234.22 | 241.07 | 4260 | NASDAQ | ALGN | Thu, Jan 4, 2018 | 234.90 | 235.66 | 230.25 | 233.30 | 4259 | NASDAQ | ALGN | Wed, Jan 3, 2018 | 226.06 | 231.48 | 225.01 | 231.20 | 4258 | NASDAQ | ALGN | Tue, Jan 2, 2018 | 222.61 | 226.19 | 220.36 | 224.62 | 4257 | NASDAQ | ALGN | Fri, Dec 29, 2017 | 225.99 | 227.66 | 222.09 | 222.19 | 4256 | NASDAQ | ALGN | Thu, Dec 28, 2017 | 227.79 | 227.79 | 222.61 | 226.48 | 4255 | NASDAQ | ALGN | Wed, Dec 27, 2017 | 223.22 | 229.01 | 223.12 | 226.45 | 4254 | NASDAQ | ALGN | Tue, Dec 26, 2017 | 222.36 | 224.42 | 220.26 | 223.54 | 4253 | NASDAQ | ALGN | Fri, Dec 22, 2017 | 216.37 | 224.01 | 212.86 | 223.12 | 4252 | NASDAQ | ALGN | Thu, Dec 21, 2017 | 234.29 | 235.13 | 217.55 | 218.76 | 4251 | NASDAQ | ALGN | Wed, Dec 20, 2017 | 235.86 | 236.24 | 232.66 | 233.65 | 4250 | NASDAQ | ALGN | Tue, Dec 19, 2017 | 235.47 | 236.53 | 234.21 | 235.05 | 4249 | NASDAQ | ALGN | Mon, Dec 18, 2017 | 234.35 | 236.92 | 232.67 | 235.47 | 4248 | NASDAQ | ALGN | Fri, Dec 15, 2017 | 235.34 | 235.34 | 231.50 | 233.55 | 4247 | NASDAQ | ALGN | Thu, Dec 14, 2017 | 235.81 | 237.90 | 232.84 | 233.80 | 4246 | NASDAQ | ALGN | Wed, Dec 13, 2017 | 234.53 | 237.50 | 234.53 | 235.63 | 4245 | NASDAQ | ALGN | Tue, Dec 12, 2017 | 234.80 | 238.60 | 233.88 | 234.37 | 4244 | NASDAQ | ALGN | Mon, Dec 11, 2017 | 237.42 | 239.02 | 232.78 | 233.66 | 4243 | NASDAQ | ALGN | Fri, Dec 8, 2017 | 242.72 | 245.81 | 235.05 | 238.43 | 4242 | NASDAQ | ALGN | Thu, Dec 7, 2017 | 236.11 | 242.17 | 232.50 | 241.38 | 4241 | NASDAQ | ALGN | Wed, Dec 6, 2017 | 228.16 | 233.74 | 225.74 | 233.01 | 4240 | NASDAQ | ALGN | Tue, Dec 5, 2017 | 225.02 | 233.82 | 224.30 | 227.36 | 4239 | NASDAQ | ALGN | Mon, Dec 4, 2017 | 257.83 | 257.99 | 222.74 | 225.80 | 4238 | NASDAQ | ALGN | Fri, Dec 1, 2017 | 259.35 | 261.00 | 244.82 | 254.07 | 4237 | NASDAQ | ALGN | Thu, Nov 30, 2017 | 259.96 | 262.79 | 254.24 | 260.88 | 4236 | NASDAQ | ALGN | Wed, Nov 29, 2017 | 264.40 | 264.64 | 254.02 | 258.37 | 4235 | NASDAQ | ALGN | Tue, Nov 28, 2017 | 264.40 | 266.41 | 259.00 | 264.23 | 4234 | NASDAQ | ALGN | Mon, Nov 27, 2017 | 255.78 | 263.90 | 255.54 | 262.42 | 4233 | NASDAQ | ALGN | Fri, Nov 24, 2017 | 254.32 | 255.73 | 253.44 | 254.76 | 4232 | NASDAQ | ALGN | Wed, Nov 22, 2017 | 255.41 | 257.35 | 251.57 | 254.38 | 4231 | NASDAQ | ALGN | Tue, Nov 21, 2017 | 257.67 | 258.88 | 252.03 | 256.43 | 4230 | NASDAQ | ALGN | Mon, Nov 20, 2017 | 254.64 | 258.61 | 253.67 | 255.51 | 4229 | NASDAQ | ALGN | Fri, Nov 17, 2017 | 254.74 | 255.77 | 251.50 | 253.89 | 4228 | NASDAQ | ALGN | Thu, Nov 16, 2017 | 251.76 | 255.98 | 249.18 | 254.92 | 4227 | NASDAQ | ALGN | Wed, Nov 15, 2017 | 252.24 | 253.64 | 243.00 | 249.19 | 4226 | NASDAQ | ALGN | Tue, Nov 14, 2017 | 251.78 | 256.10 | 251.00 | 254.02 | 4225 | NASDAQ | ALGN | Mon, Nov 13, 2017 | 249.29 | 257.60 | 248.29 | 253.73 | 4224 | NASDAQ | ALGN | Fri, Nov 10, 2017 | 249.38 | 251.02 | 246.26 | 249.46 | 4223 | NASDAQ | ALGN | Thu, Nov 9, 2017 | 251.80 | 254.19 | 245.53 | 249.63 | 4222 | NASDAQ | ALGN | Wed, Nov 8, 2017 | 246.00 | 253.65 | 246.00 | 252.74 | 4221 | NASDAQ | ALGN | Tue, Nov 7, 2017 | 245.00 | 246.84 | 243.66 | 246.46 | 4220 | NASDAQ | ALGN | Mon, Nov 6, 2017 | 244.02 | 246.83 | 238.59 | 244.50 | 4219 | NASDAQ | ALGN | Fri, Nov 3, 2017 | 233.85 | 242.55 | 233.85 | 241.35 | 4218 | NASDAQ | ALGN | Thu, Nov 2, 2017 | 235.38 | 237.95 | 233.00 | 233.47 | 4217 | NASDAQ | ALGN | Wed, Nov 1, 2017 | 243.00 | 244.60 | 232.31 | 234.95 | 4216 | NASDAQ | ALGN | Tue, Oct 31, 2017 | 235.10 | 240.66 | 235.05 | 238.98 | 4215 | NASDAQ | ALGN | Mon, Oct 30, 2017 | 234.35 | 243.27 | 233.36 | 235.57 | 4214 | NASDAQ | ALGN | Fri, Oct 27, 2017 | 225.64 | 239.83 | 223.56 | 235.94 | 4213 | NASDAQ | ALGN | Thu, Oct 26, 2017 | 202.59 | 207.65 | 199.45 | 202.98 | 4212 | NASDAQ | ALGN | Wed, Oct 25, 2017 | 203.00 | 203.89 | 200.27 | 201.75 | 4211 | NASDAQ | ALGN | Tue, Oct 24, 2017 | 202.76 | 205.07 | 198.44 | 203.72 | 4210 | NASDAQ | ALGN | Mon, Oct 23, 2017 | 205.45 | 205.99 | 202.46 | 202.76 | 4209 | NASDAQ | ALGN | Fri, Oct 20, 2017 | 196.67 | 201.70 | 196.67 | 200.88 | 4208 | NASDAQ | ALGN | Thu, Oct 19, 2017 | 194.23 | 196.89 | 191.80 | 196.85 | 4207 | NASDAQ | ALGN | Wed, Oct 18, 2017 | 194.72 | 196.00 | 193.62 | 194.23 | 4206 | NASDAQ | ALGN | Tue, Oct 17, 2017 | 193.46 | 196.04 | 192.65 | 194.27 | 4205 | NASDAQ | ALGN | Mon, Oct 16, 2017 | 193.01 | 195.60 | 192.21 | 193.37 | 4204 | NASDAQ | ALGN | Fri, Oct 13, 2017 | 192.58 | 193.94 | 191.35 | 192.81 | 4203 | NASDAQ | ALGN | Thu, Oct 12, 2017 | 192.79 | 194.84 | 192.20 | 192.38 | 4202 | NASDAQ | ALGN | Wed, Oct 11, 2017 | 188.22 | 193.19 | 188.22 | 192.46 | 4201 | NASDAQ | ALGN | Tue, Oct 10, 2017 | 188.53 | 189.92 | 188.13 | 188.67 | 4200 | NASDAQ | ALGN | Mon, Oct 9, 2017 | 186.83 | 189.28 | 185.49 | 188.13 | 4199 | NASDAQ | ALGN | Fri, Oct 6, 2017 | 186.99 | 191.78 | 186.15 | 187.04 | 4198 | NASDAQ | ALGN | Thu, Oct 5, 2017 | 185.44 | 187.49 | 185.21 | 186.61 | 4197 | NASDAQ | ALGN | Wed, Oct 4, 2017 | 186.41 | 186.87 | 184.67 | 185.98 | 4196 | NASDAQ | ALGN | Tue, Oct 3, 2017 | 187.75 | 188.38 | 185.20 | 186.45 | 4195 | NASDAQ | ALGN | Mon, Oct 2, 2017 | 187.16 | 187.98 | 185.05 | 187.22 | 4194 | NASDAQ | ALGN | Fri, Sep 29, 2017 | 183.60 | 186.62 | 182.06 | 186.27 | 4193 | NASDAQ | ALGN | Thu, Sep 28, 2017 | 184.50 | 184.77 | 180.31 | 183.04 | 4192 | NASDAQ | ALGN | Wed, Sep 27, 2017 | 184.49 | 186.81 | 183.21 | 184.78 | 4191 | NASDAQ | ALGN | Tue, Sep 26, 2017 | 185.61 | 186.10 | 183.04 | 184.20 | 4190 | NASDAQ | ALGN | Mon, Sep 25, 2017 | 187.40 | 187.46 | 183.53 | 184.89 | 4189 | NASDAQ | ALGN | Fri, Sep 22, 2017 | 186.20 | 188.24 | 186.05 | 188.00 | 4188 | NASDAQ | ALGN | Thu, Sep 21, 2017 | 188.76 | 189.39 | 184.75 | 186.32 | 4187 | NASDAQ | ALGN | Wed, Sep 20, 2017 | 187.83 | 189.01 | 186.54 | 188.78 | 4186 | NASDAQ | ALGN | Tue, Sep 19, 2017 | 189.07 | 190.04 | 186.04 | 187.18 | 4185 | NASDAQ | ALGN | Mon, Sep 18, 2017 | 185.95 | 188.97 | 185.06 | 188.34 | 4184 | NASDAQ | ALGN | Fri, Sep 15, 2017 | 184.50 | 185.60 | 183.16 | 184.50 | 4183 | NASDAQ | ALGN | Thu, Sep 14, 2017 | 183.42 | 185.49 | 182.10 | 184.86 | 4182 | NASDAQ | ALGN | Wed, Sep 13, 2017 | 185.18 | 185.87 | 183.26 | 183.57 | 4181 | NASDAQ | ALGN | Tue, Sep 12, 2017 | 184.80 | 186.10 | 182.55 | 185.66 | 4180 | NASDAQ | ALGN | Mon, Sep 11, 2017 | 185.61 | 185.61 | 181.49 | 184.12 | 4179 | NASDAQ | ALGN | Fri, Sep 8, 2017 | 179.80 | 181.99 | 179.08 | 181.44 | 4178 | NASDAQ | ALGN | Thu, Sep 7, 2017 | 176.56 | 180.55 | 174.44 | 179.99 | 4177 | NASDAQ | ALGN | Wed, Sep 6, 2017 | 180.00 | 180.36 | 175.37 | 176.63 | 4176 | NASDAQ | ALGN | Tue, Sep 5, 2017 | 176.42 | 179.96 | 176.42 | 179.33 | 4175 | NASDAQ | ALGN | Fri, Sep 1, 2017 | 176.81 | 177.40 | 173.88 | 176.38 | 4174 | NASDAQ | ALGN | Thu, Aug 31, 2017 | 175.05 | 177.07 | 173.94 | 176.74 | 4173 | NASDAQ | ALGN | Wed, Aug 30, 2017 | 173.55 | 174.91 | 172.91 | 174.88 | 4172 | NASDAQ | ALGN | Tue, Aug 29, 2017 | 173.03 | 174.61 | 172.27 | 173.99 | 4171 | NASDAQ | ALGN | Mon, Aug 28, 2017 | 173.02 | 175.93 | 173.02 | 175.11 | 4170 | NASDAQ | ALGN | Fri, Aug 25, 2017 | 175.41 | 176.20 | 171.55 | 172.55 | 4169 | NASDAQ | ALGN | Thu, Aug 24, 2017 | 174.00 | 175.96 | 173.35 | 175.31 | 4168 | NASDAQ | ALGN | Wed, Aug 23, 2017 | 172.33 | 173.84 | 170.79 | 172.85 | 4167 | NASDAQ | ALGN | Tue, Aug 22, 2017 | 167.97 | 173.00 | 166.64 | 172.55 | 4166 | NASDAQ | ALGN | Mon, Aug 21, 2017 | 168.51 | 169.64 | 165.18 | 167.98 | 4165 | NASDAQ | ALGN | Fri, Aug 18, 2017 | 169.96 | 172.18 | 167.27 | 168.61 | 4164 | NASDAQ | ALGN | Thu, Aug 17, 2017 | 177.90 | 177.90 | 169.13 | 169.36 | 4163 | NASDAQ | ALGN | Wed, Aug 16, 2017 | 178.89 | 179.76 | 176.81 | 178.46 | 4162 | NASDAQ | ALGN | Tue, Aug 15, 2017 | 174.88 | 178.58 | 174.18 | 177.97 | 4161 | NASDAQ | ALGN | Mon, Aug 14, 2017 | 173.91 | 175.36 | 173.68 | 174.16 | 4160 | NASDAQ | ALGN | Fri, Aug 11, 2017 | 171.76 | 175.16 | 171.48 | 173.56 | 4159 | NASDAQ | ALGN | Thu, Aug 10, 2017 | 174.92 | 174.92 | 171.15 | 171.23 | 4158 | NASDAQ | ALGN | Wed, Aug 9, 2017 | 173.84 | 176.44 | 172.37 | 175.77 | 4157 | NASDAQ | ALGN | Tue, Aug 8, 2017 | 173.89 | 176.84 | 173.35 | 173.62 | 4156 | NASDAQ | ALGN | Mon, Aug 7, 2017 | 169.49 | 174.82 | 169.49 | 174.01 | 4155 | NASDAQ | ALGN | Fri, Aug 4, 2017 | 170.88 | 171.00 | 168.57 | 169.30 | 4154 | NASDAQ | ALGN | Thu, Aug 3, 2017 | 168.09 | 170.62 | 167.59 | 170.46 | 4153 | NASDAQ | ALGN | Wed, Aug 2, 2017 | 170.28 | 171.05 | 166.38 | 167.99 | 4152 | NASDAQ | ALGN | Tue, Aug 1, 2017 | 167.41 | 171.65 | 167.37 | 169.43 | 4151 | NASDAQ | ALGN | Mon, Jul 31, 2017 | 173.34 | 173.75 | 166.11 | 167.23 | 4150 | NASDAQ | ALGN | Fri, Jul 28, 2017 | 168.10 | 173.79 | 160.37 | 173.06 | 4149 | NASDAQ | ALGN | Thu, Jul 27, 2017 | 160.52 | 160.65 | 155.55 | 157.26 | 4148 | NASDAQ | ALGN | Wed, Jul 26, 2017 | 158.66 | 159.93 | 157.37 | 158.69 | 4147 | NASDAQ | ALGN | Tue, Jul 25, 2017 | 161.81 | 161.81 | 158.45 | 158.56 | 4146 | NASDAQ | ALGN | Mon, Jul 24, 2017 | 158.67 | 161.81 | 158.65 | 161.19 | 4145 | NASDAQ | ALGN | Fri, Jul 21, 2017 | 160.31 | 160.93 | 158.42 | 158.87 | 4144 | NASDAQ | ALGN | Thu, Jul 20, 2017 | 159.50 | 160.54 | 158.10 | 160.17 | 4143 | NASDAQ | ALGN | Wed, Jul 19, 2017 | 157.09 | 159.45 | 156.76 | 159.28 | 4142 | NASDAQ | ALGN | Tue, Jul 18, 2017 | 155.99 | 156.75 | 155.11 | 156.02 | 4141 | NASDAQ | ALGN | Mon, Jul 17, 2017 | 155.01 | 157.86 | 154.90 | 156.21 | 4140 | NASDAQ | ALGN | Fri, Jul 14, 2017 | 152.14 | 154.82 | 152.12 | 154.30 | 4139 | NASDAQ | ALGN | Thu, Jul 13, 2017 | 153.13 | 153.65 | 150.76 | 152.19 | 4138 | NASDAQ | ALGN | Wed, Jul 12, 2017 | 152.07 | 152.93 | 151.14 | 152.51 | 4137 | NASDAQ | ALGN | Tue, Jul 11, 2017 | 151.56 | 152.26 | 150.33 | 151.59 | 4136 | NASDAQ | ALGN | Mon, Jul 10, 2017 | 152.10 | 153.48 | 150.56 | 151.58 | 4135 | NASDAQ | ALGN | Fri, Jul 7, 2017 | 150.98 | 152.80 | 150.92 | 151.95 | 4134 | NASDAQ | ALGN | Thu, Jul 6, 2017 | 151.12 | 151.48 | 149.50 | 149.74 | 4133 | NASDAQ | ALGN | Wed, Jul 5, 2017 | 151.52 | 152.80 | 149.16 | 151.94 | 4132 | NASDAQ | ALGN | Mon, Jul 3, 2017 | 151.06 | 152.23 | 148.95 | 149.03 | 4131 | NASDAQ | ALGN | Fri, Jun 30, 2017 | 148.33 | 150.95 | 148.33 | 150.12 | 4130 | NASDAQ | ALGN | Thu, Jun 29, 2017 | 151.50 | 152.09 | 148.01 | 148.62 | 4129 | NASDAQ | ALGN | Wed, Jun 28, 2017 | 150.19 | 152.59 | 149.62 | 152.24 | 4128 | NASDAQ | ALGN | Tue, Jun 27, 2017 | 151.15 | 152.83 | 148.94 | 149.34 | 4127 | NASDAQ | ALGN | Mon, Jun 26, 2017 | 153.66 | 154.79 | 151.45 | 151.67 | 4126 | NASDAQ | ALGN | Fri, Jun 23, 2017 | 154.85 | 154.85 | 151.24 | 153.50 | 4125 | NASDAQ | ALGN | Thu, Jun 22, 2017 | 150.07 | 150.98 | 148.85 | 149.69 | 4124 | NASDAQ | ALGN | Wed, Jun 21, 2017 | 147.16 | 149.77 | 147.15 | 149.42 | 4123 | NASDAQ | ALGN | Tue, Jun 20, 2017 | 150.08 | 150.84 | 146.77 | 146.99 | 4122 | NASDAQ | ALGN | Mon, Jun 19, 2017 | 146.32 | 152.14 | 146.25 | 149.70 | 4121 | NASDAQ | ALGN | Fri, Jun 16, 2017 | 144.78 | 145.51 | 144.01 | 145.26 | 4120 | NASDAQ | ALGN | Thu, Jun 15, 2017 | 142.95 | 144.17 | 142.01 | 144.02 | 4119 | NASDAQ | ALGN | Wed, Jun 14, 2017 | 145.38 | 145.81 | 142.99 | 144.30 | 4118 | NASDAQ | ALGN | Tue, Jun 13, 2017 | 144.17 | 146.03 | 142.04 | 144.38 | 4117 | NASDAQ | ALGN | Mon, Jun 12, 2017 | 147.34 | 147.79 | 139.00 | 143.41 | 4116 | NASDAQ | ALGN | Fri, Jun 9, 2017 | 152.16 | 153.93 | 146.11 | 148.85 | 4115 | NASDAQ | ALGN | Thu, Jun 8, 2017 | 149.25 | 151.91 | 148.46 | 151.82 | 4114 | NASDAQ | ALGN | Wed, Jun 7, 2017 | 149.15 | 149.64 | 148.57 | 149.13 | 4113 | NASDAQ | ALGN | Tue, Jun 6, 2017 | 148.74 | 149.53 | 147.40 | 148.62 | 4112 | NASDAQ | ALGN | Mon, Jun 5, 2017 | 150.00 | 150.56 | 148.60 | 148.83 | 4111 | NASDAQ | ALGN | Fri, Jun 2, 2017 | 146.57 | 150.36 | 146.52 | 149.70 | 4110 | NASDAQ | ALGN | Thu, Jun 1, 2017 | 146.36 | 147.00 | 144.04 | 145.91 | 4109 | NASDAQ | ALGN | Wed, May 31, 2017 | 144.59 | 146.00 | 142.60 | 145.20 | 4108 | NASDAQ | ALGN | Tue, May 30, 2017 | 142.56 | 144.45 | 141.70 | 143.33 | 4107 | NASDAQ | ALGN | Fri, May 26, 2017 | 141.40 | 143.09 | 140.24 | 142.10 | 4106 | NASDAQ | ALGN | Thu, May 25, 2017 | 138.71 | 141.94 | 138.71 | 141.39 | 4105 | NASDAQ | ALGN | Wed, May 24, 2017 | 138.78 | 139.26 | 137.78 | 138.65 | 4104 | NASDAQ | ALGN | Tue, May 23, 2017 | 137.93 | 138.31 | 136.26 | 138.22 | 4103 | NASDAQ | ALGN | Mon, May 22, 2017 | 139.23 | 139.42 | 138.04 | 138.10 | 4102 | NASDAQ | ALGN | Fri, May 19, 2017 | 138.00 | 138.99 | 137.70 | 138.43 | 4101 | NASDAQ | ALGN | Thu, May 18, 2017 | 136.00 | 138.84 | 135.59 | 137.69 | 4100 | NASDAQ | ALGN | Wed, May 17, 2017 | 137.53 | 137.89 | 134.68 | 136.08 | 4099 | NASDAQ | ALGN | Tue, May 16, 2017 | 138.83 | 139.12 | 137.50 | 138.61 | 4098 | NASDAQ | ALGN | Mon, May 15, 2017 | 138.90 | 139.95 | 138.16 | 138.46 | 4097 | NASDAQ | ALGN | Fri, May 12, 2017 | 137.24 | 139.23 | 137.14 | 138.67 | 4096 | NASDAQ | ALGN | Thu, May 11, 2017 | 136.51 | 137.61 | 135.85 | 137.46 | 4095 | NASDAQ | ALGN | Wed, May 10, 2017 | 137.96 | 138.36 | 135.81 | 137.01 | 4094 | NASDAQ | ALGN | Tue, May 9, 2017 | 137.97 | 138.97 | 137.23 | 138.17 | 4093 | NASDAQ | ALGN | Mon, May 8, 2017 | 138.25 | 138.77 | 136.32 | 137.00 | 4092 | NASDAQ | ALGN | Fri, May 5, 2017 | 141.69 | 141.85 | 137.77 | 138.03 | 4091 | NASDAQ | ALGN | Thu, May 4, 2017 | 132.21 | 142.18 | 132.02 | 141.89 | 4090 | NASDAQ | ALGN | Wed, May 3, 2017 | 134.50 | 135.84 | 131.32 | 131.97 | 4089 | NASDAQ | ALGN | Tue, May 2, 2017 | 133.56 | 135.30 | 133.38 | 134.12 | 4088 | NASDAQ | ALGN | Mon, May 1, 2017 | 135.39 | 136.33 | 133.03 | 133.68 | 4087 | NASDAQ | ALGN | Fri, Apr 28, 2017 | 139.79 | 145.24 | 133.71 | 134.62 | 4086 | NASDAQ | ALGN | Thu, Apr 27, 2017 | 119.96 | 120.41 | 119.16 | 120.09 | 4085 | NASDAQ | ALGN | Wed, Apr 26, 2017 | 119.24 | 120.06 | 118.45 | 119.74 | 4084 | NASDAQ | ALGN | Tue, Apr 25, 2017 | 121.47 | 121.79 | 118.37 | 118.78 | 4083 | NASDAQ | ALGN | Mon, Apr 24, 2017 | 120.02 | 120.88 | 119.05 | 120.34 | 4082 | NASDAQ | ALGN | Fri, Apr 21, 2017 | 119.10 | 120.02 | 118.08 | 118.44 | 4081 | NASDAQ | ALGN | Thu, Apr 20, 2017 | 117.50 | 119.19 | 116.32 | 118.87 | 4080 | NASDAQ | ALGN | Wed, Apr 19, 2017 | 116.65 | 117.98 | 116.57 | 117.55 | 4079 | NASDAQ | ALGN | Tue, Apr 18, 2017 | 114.94 | 116.40 | 114.74 | 116.32 | 4078 | NASDAQ | ALGN | Mon, Apr 17, 2017 | 113.96 | 115.31 | 113.82 | 115.18 | 4077 | NASDAQ | ALGN | Thu, Apr 13, 2017 | 113.97 | 114.72 | 113.40 | 113.73 | 4076 | NASDAQ | ALGN | Wed, Apr 12, 2017 | 115.16 | 115.50 | 113.93 | 114.11 | 4075 | NASDAQ | ALGN | Tue, Apr 11, 2017 | 114.82 | 115.25 | 114.10 | 114.95 | 4074 | NASDAQ | ALGN | Mon, Apr 10, 2017 | 115.25 | 115.25 | 114.27 | 114.73 | 4073 | NASDAQ | ALGN | Fri, Apr 7, 2017 | 114.76 | 115.74 | 114.66 | 114.74 | 4072 | NASDAQ | ALGN | Thu, Apr 6, 2017 | 114.77 | 115.36 | 114.18 | 115.19 | 4071 | NASDAQ | ALGN | Wed, Apr 5, 2017 | 115.94 | 116.45 | 114.72 | 114.80 | 4070 | NASDAQ | ALGN | Tue, Apr 4, 2017 | 116.56 | 116.99 | 115.25 | 115.61 | 4069 | NASDAQ | ALGN | Mon, Apr 3, 2017 | 115.13 | 116.75 | 114.80 | 116.36 | 4068 | NASDAQ | ALGN | Fri, Mar 31, 2017 | 113.70 | 115.20 | 113.46 | 114.71 | 4067 | NASDAQ | ALGN | Thu, Mar 30, 2017 | 114.59 | 114.98 | 113.75 | 113.96 | 4066 | NASDAQ | ALGN | Wed, Mar 29, 2017 | 113.81 | 114.92 | 113.25 | 114.23 | 4065 | NASDAQ | ALGN | Tue, Mar 28, 2017 | 113.76 | 114.35 | 113.22 | 113.90 | 4064 | NASDAQ | ALGN | Mon, Mar 27, 2017 | 113.42 | 114.49 | 112.21 | 114.02 | 4063 | NASDAQ | ALGN | Fri, Mar 24, 2017 | 112.64 | 114.99 | 112.64 | 113.87 | 4062 | NASDAQ | ALGN | Thu, Mar 23, 2017 | 111.93 | 113.33 | 111.35 | 112.55 | 4061 | NASDAQ | ALGN | Wed, Mar 22, 2017 | 110.95 | 112.49 | 110.25 | 111.99 | 4060 | NASDAQ | ALGN | Tue, Mar 21, 2017 | 113.77 | 114.29 | 110.58 | 111.06 | 4059 | NASDAQ | ALGN | Mon, Mar 20, 2017 | 112.25 | 113.31 | 111.65 | 113.23 | 4058 | NASDAQ | ALGN | Fri, Mar 17, 2017 | 110.89 | 113.00 | 110.56 | 111.85 | 4057 | NASDAQ | ALGN | Thu, Mar 16, 2017 | 110.65 | 111.40 | 109.76 | 110.47 | 4056 | NASDAQ | ALGN | Wed, Mar 15, 2017 | 107.59 | 110.87 | 107.12 | 110.31 | 4055 | NASDAQ | ALGN | Tue, Mar 14, 2017 | 107.84 | 107.84 | 106.62 | 107.48 | 4054 | NASDAQ | ALGN | Mon, Mar 13, 2017 | 105.47 | 108.27 | 105.47 | 107.99 | 4053 | NASDAQ | ALGN | Fri, Mar 10, 2017 | 105.84 | 105.92 | 104.40 | 105.32 | 4052 | NASDAQ | ALGN | Thu, Mar 9, 2017 | 104.09 | 105.59 | 103.22 | 105.36 | 4051 | NASDAQ | ALGN | Wed, Mar 8, 2017 | 103.65 | 104.59 | 103.39 | 103.72 | 4050 | NASDAQ | ALGN | Tue, Mar 7, 2017 | 102.47 | 103.82 | 102.02 | 103.15 | 4049 | NASDAQ | ALGN | Mon, Mar 6, 2017 | 104.10 | 104.70 | 102.18 | 102.74 | 4048 | NASDAQ | ALGN | Fri, Mar 3, 2017 | 104.20 | 104.25 | 103.12 | 104.04 | 4047 | NASDAQ | ALGN | Thu, Mar 2, 2017 | 104.09 | 104.53 | 103.16 | 104.12 | 4046 | NASDAQ | ALGN | Wed, Mar 1, 2017 | 103.77 | 104.42 | 102.67 | 103.83 | 4045 | NASDAQ | ALGN | Tue, Feb 28, 2017 | 102.27 | 103.83 | 102.27 | 102.76 | 4044 | NASDAQ | ALGN | Mon, Feb 27, 2017 | 102.57 | 103.24 | 102.11 | 102.26 | 4043 | NASDAQ | ALGN | Fri, Feb 24, 2017 | 100.57 | 103.04 | 100.57 | 102.89 | 4042 | NASDAQ | ALGN | Thu, Feb 23, 2017 | 101.21 | 101.65 | 100.27 | 101.16 | 4041 | NASDAQ | ALGN | Wed, Feb 22, 2017 | 100.61 | 101.20 | 100.03 | 101.09 | 4040 | NASDAQ | ALGN | Tue, Feb 21, 2017 | 102.28 | 102.90 | 101.06 | 101.86 | 4039 | NASDAQ | ALGN | Fri, Feb 17, 2017 | 100.35 | 101.83 | 99.60 | 101.77 | 4038 | NASDAQ | ALGN | Thu, Feb 16, 2017 | 100.00 | 100.76 | 99.62 | 100.42 | 4037 | NASDAQ | ALGN | Wed, Feb 15, 2017 | 98.27 | 100.12 | 98.17 | 99.96 | 4036 | NASDAQ | ALGN | Tue, Feb 14, 2017 | 97.67 | 99.28 | 97.31 | 98.39 | 4035 | NASDAQ | ALGN | Mon, Feb 13, 2017 | 96.92 | 98.02 | 96.40 | 97.61 | 4034 | NASDAQ | ALGN | Fri, Feb 10, 2017 | 95.96 | 97.22 | 95.17 | 96.97 | 4033 | NASDAQ | ALGN | Thu, Feb 9, 2017 | 94.20 | 96.49 | 94.20 | 95.98 | 4032 | NASDAQ | ALGN | Wed, Feb 8, 2017 | 93.25 | 94.19 | 92.61 | 94.17 | 4031 | NASDAQ | ALGN | Tue, Feb 7, 2017 | 94.31 | 94.50 | 93.09 | 93.65 | 4030 | NASDAQ | ALGN | Mon, Feb 6, 2017 | 96.00 | 96.24 | 93.30 | 93.85 | 4029 | NASDAQ | ALGN | Fri, Feb 3, 2017 | 95.43 | 96.52 | 94.14 | 95.82 | 4028 | NASDAQ | ALGN | Thu, Feb 2, 2017 | 97.38 | 98.54 | 94.72 | 95.13 | 4027 | NASDAQ | ALGN | Wed, Feb 1, 2017 | 97.00 | 102.00 | 95.43 | 97.25 | 4026 | NASDAQ | ALGN | Tue, Jan 31, 2017 | 89.72 | 91.75 | 89.32 | 91.69 | 4025 | NASDAQ | ALGN | Mon, Jan 30, 2017 | 89.64 | 90.09 | 88.56 | 89.98 | 4024 | NASDAQ | ALGN | Fri, Jan 27, 2017 | 91.67 | 92.47 | 89.96 | 90.93 | 4023 | NASDAQ | ALGN | Thu, Jan 26, 2017 | 93.46 | 93.56 | 91.84 | 92.23 | 4022 | NASDAQ | ALGN | Wed, Jan 25, 2017 | 91.88 | 93.60 | 91.76 | 93.41 | 4021 | NASDAQ | ALGN | Tue, Jan 24, 2017 | 92.53 | 92.67 | 90.78 | 91.65 | 4020 | NASDAQ | ALGN | Mon, Jan 23, 2017 | 91.58 | 92.47 | 91.44 | 92.04 | 4019 | NASDAQ | ALGN | Fri, Jan 20, 2017 | 90.89 | 92.03 | 90.86 | 91.70 | 4018 | NASDAQ | ALGN | Thu, Jan 19, 2017 | 91.51 | 91.85 | 90.21 | 90.55 | 4017 | NASDAQ | ALGN | Wed, Jan 18, 2017 | 95.79 | 96.11 | 93.83 | 94.42 | 4016 | NASDAQ | ALGN | Tue, Jan 17, 2017 | 95.47 | 96.17 | 94.63 | 95.34 | 4015 | NASDAQ | ALGN | Fri, Jan 13, 2017 | 95.65 | 96.64 | 95.28 | 96.01 | 4014 | NASDAQ | ALGN | Thu, Jan 12, 2017 | 95.57 | 95.85 | 94.40 | 95.55 | 4013 | NASDAQ | ALGN | Wed, Jan 11, 2017 | 96.07 | 96.76 | 95.06 | 96.00 | 4012 | NASDAQ | ALGN | Tue, Jan 10, 2017 | 94.61 | 96.79 | 94.15 | 96.13 | 4011 | NASDAQ | ALGN | Mon, Jan 9, 2017 | 94.13 | 95.87 | 93.51 | 94.79 | 4010 | NASDAQ | ALGN | Fri, Jan 6, 2017 | 94.82 | 95.74 | 93.60 | 94.08 | 4009 | NASDAQ | ALGN | Thu, Jan 5, 2017 | 97.52 | 97.77 | 94.41 | 94.82 | 4008 | NASDAQ | ALGN | Wed, Jan 4, 2017 | 96.85 | 98.82 | 96.80 | 97.77 | 4007 | NASDAQ | ALGN | Tue, Jan 3, 2017 | 96.49 | 98.33 | 95.80 | 96.96 | 4006 | NASDAQ | ALGN | Fri, Dec 30, 2016 | 97.12 | 97.35 | 95.84 | 96.13 | 4005 | NASDAQ | ALGN | Thu, Dec 29, 2016 | 97.09 | 97.59 | 96.55 | 96.96 | 4004 | NASDAQ | ALGN | Wed, Dec 28, 2016 | 98.60 | 99.24 | 96.50 | 96.80 | 4003 | NASDAQ | ALGN | Tue, Dec 27, 2016 | 98.71 | 99.45 | 98.59 | 98.66 | 4002 | NASDAQ | ALGN | Fri, Dec 23, 2016 | 98.39 | 98.69 | 97.91 | 98.50 | 4001 | NASDAQ | ALGN | Thu, Dec 22, 2016 | 98.93 | 99.16 | 97.99 | 98.21 | 4000 | NASDAQ | ALGN | Wed, Dec 21, 2016 | 99.76 | 99.76 | 98.35 | 98.71 | 3999 | NASDAQ | ALGN | Tue, Dec 20, 2016 | 100.13 | 100.90 | 99.05 | 99.39 | 3998 | NASDAQ | ALGN | Mon, Dec 19, 2016 | 101.56 | 102.10 | 100.09 | 100.25 | 3997 | NASDAQ | ALGN | Fri, Dec 16, 2016 | 100.18 | 101.79 | 100.02 | 101.14 | 3996 | NASDAQ | ALGN | Thu, Dec 15, 2016 | 98.93 | 100.59 | 98.25 | 100.27 | 3995 | NASDAQ | ALGN | Wed, Dec 14, 2016 | 99.05 | 99.93 | 98.05 | 98.60 | 3994 | NASDAQ | ALGN | Tue, Dec 13, 2016 | 99.69 | 100.50 | 97.94 | 99.15 | 3993 | NASDAQ | ALGN | Mon, Dec 12, 2016 | 97.99 | 99.48 | 97.62 | 98.53 | 3992 | NASDAQ | ALGN | Fri, Dec 9, 2016 | 99.84 | 100.67 | 98.43 | 98.62 | 3991 | NASDAQ | ALGN | Thu, Dec 8, 2016 | 97.89 | 99.58 | 97.47 | 99.30 | 3990 | NASDAQ | ALGN | Wed, Dec 7, 2016 | 98.17 | 98.22 | 95.25 | 98.14 | 3989 | NASDAQ | ALGN | Tue, Dec 6, 2016 | 94.65 | 96.37 | 92.74 | 96.24 | 3988 | NASDAQ | ALGN | Mon, Dec 5, 2016 | 93.26 | 94.71 | 93.21 | 94.01 | 3987 | NASDAQ | ALGN | Fri, Dec 2, 2016 | 92.30 | 94.16 | 92.25 | 92.46 | 3986 | NASDAQ | ALGN | Thu, Dec 1, 2016 | 93.12 | 93.68 | 91.46 | 92.54 | 3985 | NASDAQ | ALGN | Wed, Nov 30, 2016 | 95.00 | 95.45 | 92.31 | 93.05 | 3984 | NASDAQ | ALGN | Tue, Nov 29, 2016 | 95.95 | 96.23 | 94.94 | 95.51 | 3983 | NASDAQ | ALGN | Mon, Nov 28, 2016 | 96.33 | 98.11 | 95.01 | 95.34 | 3982 | NASDAQ | ALGN | Fri, Nov 25, 2016 | 96.44 | 96.88 | 95.73 | 96.19 | 3981 | NASDAQ | ALGN | Wed, Nov 23, 2016 | 94.05 | 96.08 | 94.05 | 95.55 | 3980 | NASDAQ | ALGN | Tue, Nov 22, 2016 | 95.00 | 95.11 | 93.19 | 94.46 | 3979 | NASDAQ | ALGN | Mon, Nov 21, 2016 | 94.75 | 97.10 | 94.25 | 96.18 | 3978 | NASDAQ | ALGN | Fri, Nov 18, 2016 | 97.73 | 98.62 | 94.80 | 94.84 | 3977 | NASDAQ | ALGN | Thu, Nov 17, 2016 | 93.75 | 97.28 | 93.72 | 97.24 | 3976 | NASDAQ | ALGN | Wed, Nov 16, 2016 | 93.42 | 95.34 | 93.21 | 94.04 | 3975 | NASDAQ | ALGN | Tue, Nov 15, 2016 | 90.52 | 94.56 | 90.52 | 93.95 | 3974 | NASDAQ | ALGN | Mon, Nov 14, 2016 | 92.06 | 92.87 | 89.99 | 90.22 | 3973 | NASDAQ | ALGN | Fri, Nov 11, 2016 | 90.51 | 92.15 | 89.82 | 91.54 | 3972 | NASDAQ | ALGN | Thu, Nov 10, 2016 | 91.77 | 92.62 | 88.74 | 90.60 | 3971 | NASDAQ | ALGN | Wed, Nov 9, 2016 | 87.77 | 91.38 | 87.19 | 90.88 | 3970 | NASDAQ | ALGN | Tue, Nov 8, 2016 | 89.89 | 91.96 | 86.72 | 88.79 | 3969 | NASDAQ | ALGN | Mon, Nov 7, 2016 | 87.14 | 88.69 | 86.38 | 87.86 | 3968 | NASDAQ | ALGN | Fri, Nov 4, 2016 | 86.09 | 86.54 | 85.56 | 85.73 | 3967 | NASDAQ | ALGN | Thu, Nov 3, 2016 | 85.71 | 87.01 | 85.42 | 86.08 | 3966 | NASDAQ | ALGN | Wed, Nov 2, 2016 | 84.48 | 86.73 | 84.21 | 85.21 | 3965 | NASDAQ | ALGN | Tue, Nov 1, 2016 | 85.86 | 86.73 | 83.77 | 84.56 | 3964 | NASDAQ | ALGN | Mon, Oct 31, 2016 | 85.31 | 86.35 | 83.63 | 85.92 | 3963 | NASDAQ | ALGN | Fri, Oct 28, 2016 | 83.80 | 86.63 | 83.30 | 85.17 | 3962 | NASDAQ | ALGN | Thu, Oct 27, 2016 | 84.90 | 84.90 | 83.27 | 84.14 | 3961 | NASDAQ | ALGN | Wed, Oct 26, 2016 | 87.00 | 87.00 | 84.18 | 84.52 | 3960 | NASDAQ | ALGN | Tue, Oct 25, 2016 | 89.99 | 89.99 | 87.12 | 87.50 | 3959 | NASDAQ | ALGN | Mon, Oct 24, 2016 | 90.00 | 91.05 | 89.04 | 89.26 | 3958 | NASDAQ | ALGN | Fri, Oct 21, 2016 | 90.50 | 90.62 | 88.86 | 89.50 | 3957 | NASDAQ | ALGN | Thu, Oct 20, 2016 | 91.00 | 91.61 | 90.67 | 91.53 | 3956 | NASDAQ | ALGN | Wed, Oct 19, 2016 | 91.11 | 91.52 | 90.25 | 91.01 | 3955 | NASDAQ | ALGN | Tue, Oct 18, 2016 | 90.90 | 91.18 | 90.29 | 90.41 | 3954 | NASDAQ | ALGN | Mon, Oct 17, 2016 | 90.72 | 91.27 | 89.35 | 89.79 | 3953 | NASDAQ | ALGN | Fri, Oct 14, 2016 | 91.05 | 91.82 | 90.57 | 90.88 | 3952 | NASDAQ | ALGN | Thu, Oct 13, 2016 | 89.96 | 91.44 | 89.47 | 90.95 | 3951 | NASDAQ | ALGN | Wed, Oct 12, 2016 | 90.02 | 90.56 | 89.11 | 90.26 | 3950 | NASDAQ | ALGN | Tue, Oct 11, 2016 | 91.32 | 92.04 | 88.80 | 89.61 | 3949 | NASDAQ | ALGN | Mon, Oct 10, 2016 | 89.71 | 92.18 | 89.71 | 91.08 | 3948 | NASDAQ | ALGN | Fri, Oct 7, 2016 | 89.77 | 90.00 | 88.50 | 89.68 | 3947 | NASDAQ | ALGN | Thu, Oct 6, 2016 | 89.09 | 90.15 | 88.92 | 89.44 | 3946 | NASDAQ | ALGN | Wed, Oct 5, 2016 | 89.51 | 90.34 | 89.18 | 89.48 | 3945 | NASDAQ | ALGN | Tue, Oct 4, 2016 | 90.58 | 91.68 | 88.75 | 89.46 | 3944 | NASDAQ | ALGN | Mon, Oct 3, 2016 | 92.04 | 92.30 | 88.20 | 90.21 | 3943 | NASDAQ | ALGN | Fri, Sep 30, 2016 | 92.50 | 94.52 | 92.33 | 93.75 | 3942 | NASDAQ | ALGN | Thu, Sep 29, 2016 | 94.51 | 94.51 | 91.64 | 92.41 | 3941 | NASDAQ | ALGN | Wed, Sep 28, 2016 | 94.54 | 94.70 | 93.59 | 94.60 | 3940 | NASDAQ | ALGN | Tue, Sep 27, 2016 | 93.49 | 94.65 | 93.07 | 94.44 | 3939 | NASDAQ | ALGN | Mon, Sep 26, 2016 | 94.07 | 94.13 | 92.86 | 93.09 | 3938 | NASDAQ | ALGN | Fri, Sep 23, 2016 | 95.30 | 95.55 | 93.73 | 94.13 | 3937 | NASDAQ | ALGN | Thu, Sep 22, 2016 | 95.98 | 96.23 | 95.46 | 95.67 | 3936 | NASDAQ | ALGN | Wed, Sep 21, 2016 | 93.76 | 95.70 | 93.47 | 95.34 | 3935 | NASDAQ | ALGN | Tue, Sep 20, 2016 | 94.79 | 94.98 | 93.67 | 93.70 | 3934 | NASDAQ | ALGN | Mon, Sep 19, 2016 | 93.89 | 95.44 | 93.50 | 94.13 | 3933 | NASDAQ | ALGN | Fri, Sep 16, 2016 | 92.86 | 94.10 | 92.47 | 93.84 | 3932 | NASDAQ | ALGN | Thu, Sep 15, 2016 | 92.95 | 93.59 | 92.04 | 92.93 | 3931 | NASDAQ | ALGN | Wed, Sep 14, 2016 | 92.10 | 92.59 | 91.45 | 92.35 | 3930 | NASDAQ | ALGN | Tue, Sep 13, 2016 | 92.61 | 93.60 | 91.32 | 91.98 | 3929 | NASDAQ | ALGN | Mon, Sep 12, 2016 | 91.57 | 93.35 | 91.02 | 93.12 | 3928 | NASDAQ | ALGN | Fri, Sep 9, 2016 | 94.57 | 95.44 | 91.51 | 91.79 | 3927 | NASDAQ | ALGN | Thu, Sep 8, 2016 | 96.25 | 96.90 | 95.20 | 95.40 | 3926 | NASDAQ | ALGN | Wed, Sep 7, 2016 | 95.38 | 96.48 | 95.38 | 96.29 | 3925 | NASDAQ | ALGN | Tue, Sep 6, 2016 | 96.23 | 96.57 | 94.39 | 95.26 | 3924 | NASDAQ | ALGN | Fri, Sep 2, 2016 | 94.43 | 95.94 | 94.43 | 95.78 | 3923 | NASDAQ | ALGN | Thu, Sep 1, 2016 | 93.20 | 93.92 | 92.40 | 93.76 | 3922 | NASDAQ | ALGN | Wed, Aug 31, 2016 | 93.05 | 93.44 | 92.34 | 92.90 | 3921 | NASDAQ | ALGN | Tue, Aug 30, 2016 | 93.51 | 93.72 | 92.45 | 93.19 | 3920 | NASDAQ | ALGN | Mon, Aug 29, 2016 | 92.98 | 93.82 | 92.74 | 93.45 | 3919 | NASDAQ | ALGN | Fri, Aug 26, 2016 | 92.10 | 93.79 | 92.10 | 92.67 | 3918 | NASDAQ | ALGN | Thu, Aug 25, 2016 | 92.40 | 92.71 | 90.57 | 92.02 | 3917 | NASDAQ | ALGN | Wed, Aug 24, 2016 | 93.60 | 93.63 | 92.18 | 92.41 | 3916 | NASDAQ | ALGN | Tue, Aug 23, 2016 | 94.50 | 94.60 | 93.27 | 93.61 | 3915 | NASDAQ | ALGN | Mon, Aug 22, 2016 | 94.52 | 95.40 | 94.22 | 94.40 | 3914 | NASDAQ | ALGN | Fri, Aug 19, 2016 | 94.47 | 95.59 | 94.02 | 94.82 | 3913 | NASDAQ | ALGN | Thu, Aug 18, 2016 | 92.49 | 95.23 | 92.49 | 94.71 | 3912 | NASDAQ | ALGN | Wed, Aug 17, 2016 | 94.82 | 95.00 | 92.33 | 93.03 | 3911 | NASDAQ | ALGN | Tue, Aug 16, 2016 | 95.83 | 95.93 | 94.63 | 94.71 | 3910 | NASDAQ | ALGN | Mon, Aug 15, 2016 | 95.62 | 96.13 | 94.86 | 96.00 | 3909 | NASDAQ | ALGN | Fri, Aug 12, 2016 | 94.84 | 95.78 | 94.56 | 95.65 | 3908 | NASDAQ | ALGN | Thu, Aug 11, 2016 | 93.38 | 95.05 | 93.37 | 94.63 | 3907 | NASDAQ | ALGN | Wed, Aug 10, 2016 | 93.47 | 93.90 | 93.12 | 93.37 | 3906 | NASDAQ | ALGN | Tue, Aug 9, 2016 | 91.98 | 93.27 | 91.87 | 93.16 | 3905 | NASDAQ | ALGN | Mon, Aug 8, 2016 | 92.21 | 92.40 | 91.47 | 91.80 | 3904 | NASDAQ | ALGN | Fri, Aug 5, 2016 | 92.00 | 92.61 | 91.42 | 91.83 | 3903 | NASDAQ | ALGN | Thu, Aug 4, 2016 | 91.98 | 92.40 | 90.68 | 91.72 | 3902 | NASDAQ | ALGN | Wed, Aug 3, 2016 | 90.52 | 92.04 | 90.02 | 91.95 | 3901 | NASDAQ | ALGN | Tue, Aug 2, 2016 | 89.32 | 90.61 | 89.26 | 90.38 | 3900 | NASDAQ | ALGN | Mon, Aug 1, 2016 | 89.49 | 90.10 | 88.65 | 89.69 | 3899 | NASDAQ | ALGN | Fri, Jul 29, 2016 | 85.25 | 89.58 | 85.15 | 89.15 | 3898 | NASDAQ | ALGN | Thu, Jul 28, 2016 | 85.36 | 86.20 | 84.40 | 85.28 | 3897 | NASDAQ | ALGN | Wed, Jul 27, 2016 | 85.57 | 85.77 | 84.56 | 85.15 | 3896 | NASDAQ | ALGN | Tue, Jul 26, 2016 | 84.15 | 85.66 | 84.15 | 85.61 | 3895 | NASDAQ | ALGN | Mon, Jul 25, 2016 | 84.63 | 84.67 | 83.77 | 84.17 | 3894 | NASDAQ | ALGN | Fri, Jul 22, 2016 | 83.00 | 84.60 | 82.60 | 84.59 | 3893 | NASDAQ | ALGN | Thu, Jul 21, 2016 | 83.68 | 84.12 | 82.31 | 82.72 | 3892 | NASDAQ | ALGN | Wed, Jul 20, 2016 | 83.59 | 83.91 | 83.34 | 83.41 | 3891 | NASDAQ | ALGN | Tue, Jul 19, 2016 | 83.20 | 83.35 | 82.74 | 82.98 | 3890 | NASDAQ | ALGN | Mon, Jul 18, 2016 | 82.40 | 82.98 | 82.40 | 82.87 | 3889 | NASDAQ | ALGN | Fri, Jul 15, 2016 | 83.35 | 83.96 | 82.00 | 82.42 | 3888 | NASDAQ | ALGN | Thu, Jul 14, 2016 | 83.65 | 83.92 | 82.96 | 83.25 | 3887 | NASDAQ | ALGN | Wed, Jul 13, 2016 | 84.37 | 84.80 | 82.90 | 83.06 | 3886 | NASDAQ | ALGN | Tue, Jul 12, 2016 | 83.98 | 84.75 | 83.77 | 84.37 | 3885 | NASDAQ | ALGN | Mon, Jul 11, 2016 | 83.49 | 83.77 | 82.93 | 83.37 | 3884 | NASDAQ | ALGN | Fri, Jul 8, 2016 | 82.21 | 83.30 | 81.92 | 82.93 | 3883 | NASDAQ | ALGN | Thu, Jul 7, 2016 | 82.18 | 83.18 | 81.38 | 81.89 | 3882 | NASDAQ | ALGN | Wed, Jul 6, 2016 | 80.71 | 81.90 | 80.50 | 81.25 | 3881 | NASDAQ | ALGN | Tue, Jul 5, 2016 | 82.55 | 82.63 | 80.30 | 80.87 | 3880 | NASDAQ | ALGN | Fri, Jul 1, 2016 | 80.74 | 82.57 | 80.31 | 82.54 | 3879 | NASDAQ | ALGN | Thu, Jun 30, 2016 | 79.91 | 80.57 | 79.37 | 80.55 | 3878 | NASDAQ | ALGN | Wed, Jun 29, 2016 | 79.35 | 79.99 | 78.96 | 79.85 | 3877 | NASDAQ | ALGN | Tue, Jun 28, 2016 | 77.87 | 78.65 | 77.40 | 78.62 | 3876 | NASDAQ | ALGN | Mon, Jun 27, 2016 | 78.33 | 79.24 | 77.07 | 77.21 | 3875 | NASDAQ | ALGN | Fri, Jun 24, 2016 | 78.85 | 80.18 | 78.14 | 79.00 | 3874 | NASDAQ | ALGN | Thu, Jun 23, 2016 | 81.19 | 81.98 | 79.89 | 81.82 | 3873 | NASDAQ | ALGN | Wed, Jun 22, 2016 | 79.39 | 80.53 | 78.84 | 80.42 | 3872 | NASDAQ | ALGN | Tue, Jun 21, 2016 | 79.51 | 79.94 | 78.94 | 79.34 | 3871 | NASDAQ | ALGN | Mon, Jun 20, 2016 | 80.17 | 81.00 | 79.61 | 79.67 | 3870 | NASDAQ | ALGN | Fri, Jun 17, 2016 | 79.20 | 79.66 | 78.53 | 79.17 | 3869 | NASDAQ | ALGN | Thu, Jun 16, 2016 | 78.95 | 79.58 | 78.31 | 79.35 | 3868 | NASDAQ | ALGN | Wed, Jun 15, 2016 | 79.39 | 79.63 | 78.95 | 79.25 | 3867 | NASDAQ | ALGN | Tue, Jun 14, 2016 | 78.00 | 79.12 | 77.70 | 78.96 | 3866 | NASDAQ | ALGN | Mon, Jun 13, 2016 | 78.61 | 79.56 | 78.24 | 78.25 | 3865 | NASDAQ | ALGN | Fri, Jun 10, 2016 | 78.95 | 79.24 | 78.57 | 78.83 | 3864 | NASDAQ | ALGN | Thu, Jun 9, 2016 | 79.10 | 79.78 | 78.98 | 79.69 | 3863 | NASDAQ | ALGN | Wed, Jun 8, 2016 | 78.97 | 79.58 | 78.40 | 79.37 | 3862 | NASDAQ | ALGN | Tue, Jun 7, 2016 | 78.84 | 79.30 | 78.35 | 78.84 | 3861 | NASDAQ | ALGN | Mon, Jun 6, 2016 | 78.41 | 79.02 | 77.91 | 78.70 | 3860 | NASDAQ | ALGN | Fri, Jun 3, 2016 | 79.60 | 79.60 | 78.28 | 78.40 | 3859 | NASDAQ | ALGN | Thu, Jun 2, 2016 | 79.02 | 79.64 | 79.00 | 79.63 | 3858 | NASDAQ | ALGN | Wed, Jun 1, 2016 | 78.92 | 79.66 | 78.45 | 79.22 | 3857 | NASDAQ | ALGN | Tue, May 31, 2016 | 79.18 | 79.79 | 78.72 | 78.83 | 3856 | NASDAQ | ALGN | Fri, May 27, 2016 | 78.59 | 79.58 | 78.29 | 79.18 | 3855 | NASDAQ | ALGN | Thu, May 26, 2016 | 79.02 | 79.10 | 78.06 | 78.74 | 3854 | NASDAQ | ALGN | Wed, May 25, 2016 | 78.83 | 79.46 | 78.29 | 79.00 | 3853 | NASDAQ | ALGN | Tue, May 24, 2016 | 78.04 | 78.94 | 77.54 | 78.78 | 3852 | NASDAQ | ALGN | Mon, May 23, 2016 | 77.70 | 78.28 | 77.19 | 77.38 | 3851 | NASDAQ | ALGN | Fri, May 20, 2016 | 76.48 | 78.25 | 76.14 | 77.43 | 3850 | NASDAQ | ALGN | Thu, May 19, 2016 | 75.62 | 77.09 | 74.92 | 75.97 | 3849 | NASDAQ | ALGN | Wed, May 18, 2016 | 75.90 | 77.11 | 75.52 | 76.03 | 3848 | NASDAQ | ALGN | Tue, May 17, 2016 | 77.13 | 77.32 | 75.76 | 75.96 | 3847 | NASDAQ | ALGN | Mon, May 16, 2016 | 76.40 | 77.60 | 76.36 | 76.98 | 3846 | NASDAQ | ALGN | Fri, May 13, 2016 | 75.47 | 76.80 | 75.47 | 76.08 | 3845 | NASDAQ | ALGN | Thu, May 12, 2016 | 76.40 | 77.19 | 75.14 | 75.72 | 3844 | NASDAQ | ALGN | Wed, May 11, 2016 | 77.09 | 77.19 | 76.01 | 76.33 | 3843 | NASDAQ | ALGN | Tue, May 10, 2016 | 76.30 | 77.09 | 75.99 | 76.56 | 3842 | NASDAQ | ALGN | Mon, May 9, 2016 | 74.48 | 76.52 | 74.48 | 75.58 | 3841 | NASDAQ | ALGN | Fri, May 6, 2016 | 75.05 | 75.63 | 73.85 | 74.70 | 3840 | NASDAQ | ALGN | Thu, May 5, 2016 | 74.36 | 76.29 | 74.26 | 75.56 | 3839 | NASDAQ | ALGN | Wed, May 4, 2016 | 74.40 | 75.08 | 74.05 | 74.80 | 3838 | NASDAQ | ALGN | Tue, May 3, 2016 | 74.10 | 75.41 | 73.97 | 74.90 | 3837 | NASDAQ | ALGN | Mon, May 2, 2016 | 72.56 | 75.11 | 72.39 | 75.10 | 3836 | NASDAQ | ALGN | Fri, Apr 29, 2016 | 75.05 | 75.69 | 70.03 | 72.19 | 3835 | NASDAQ | ALGN | Thu, Apr 28, 2016 | 74.42 | 75.74 | 73.41 | 73.70 | 3834 | NASDAQ | ALGN | Wed, Apr 27, 2016 | 74.04 | 74.99 | 73.65 | 74.78 | 3833 | NASDAQ | ALGN | Tue, Apr 26, 2016 | 74.73 | 75.17 | 74.05 | 74.70 | 3832 | NASDAQ | ALGN | Mon, Apr 25, 2016 | 73.79 | 74.52 | 73.54 | 74.28 | 3831 | NASDAQ | ALGN | Fri, Apr 22, 2016 | 73.30 | 73.88 | 72.94 | 73.87 | 3830 | NASDAQ | ALGN | Thu, Apr 21, 2016 | 73.73 | 74.20 | 73.04 | 73.30 | 3829 | NASDAQ | ALGN | Wed, Apr 20, 2016 | 73.42 | 74.03 | 72.48 | 73.55 | 3828 | NASDAQ | ALGN | Tue, Apr 19, 2016 | 74.07 | 74.13 | 72.71 | 72.90 | 3827 | NASDAQ | ALGN | Mon, Apr 18, 2016 | 73.45 | 74.03 | 73.13 | 73.63 | 3826 | NASDAQ | ALGN | Fri, Apr 15, 2016 | 72.98 | 73.67 | 72.75 | 73.47 | 3825 | NASDAQ | ALGN | Thu, Apr 14, 2016 | 73.16 | 73.43 | 72.62 | 73.13 | 3824 | NASDAQ | ALGN | Wed, Apr 13, 2016 | 73.22 | 73.49 | 72.87 | 73.09 | 3823 | NASDAQ | ALGN | Tue, Apr 12, 2016 | 73.37 | 73.70 | 72.71 | 73.09 | 3822 | NASDAQ | ALGN | Mon, Apr 11, 2016 | 73.25 | 74.21 | 72.99 | 73.32 | 3821 | NASDAQ | ALGN | Fri, Apr 8, 2016 | 73.17 | 73.32 | 72.36 | 73.06 | 3820 | NASDAQ | ALGN | Thu, Apr 7, 2016 | 73.57 | 73.62 | 72.30 | 72.49 | 3819 | NASDAQ | ALGN | Wed, Apr 6, 2016 | 72.09 | 73.58 | 71.91 | 73.55 | 3818 | NASDAQ | ALGN | Tue, Apr 5, 2016 | 73.34 | 73.34 | 73.34 | 72.18 | 3817 | NASDAQ | ALGN | Mon, Apr 4, 2016 | 73.30 | 73.83 | 72.29 | 73.34 | 3816 | NASDAQ | ALGN | Fri, Apr 1, 2016 | 72.57 | 73.46 | 71.90 | 73.02 | 3815 | NASDAQ | ALGN | Thu, Mar 31, 2016 | 72.00 | 73.55 | 71.97 | 72.01 | 3814 | NASDAQ | ALGN | Wed, Mar 30, 2016 | 72.53 | 73.43 | 71.94 | 72.01 | 3813 | NASDAQ | ALGN | Tue, Mar 29, 2016 | 70.06 | 72.63 | 69.71 | 70.35 | 3812 | NASDAQ | ALGN | Mon, Mar 28, 2016 | 70.34 | 70.68 | 69.70 | 70.35 | 3811 | NASDAQ | ALGN | Thu, Mar 24, 2016 | 69.78 | 69.78 | 69.50 | 70.23 | 3810 | NASDAQ | ALGN | Wed, Mar 23, 2016 | 69.91 | 70.40 | 69.51 | 69.78 | 3809 | NASDAQ | ALGN | Tue, Mar 22, 2016 | 68.71 | 69.88 | 68.44 | 69.82 | 3808 | NASDAQ | ALGN | Mon, Mar 21, 2016 | 69.22 | 69.88 | 68.46 | 68.80 | 3807 | NASDAQ | ALGN | Fri, Mar 18, 2016 | 68.50 | 69.43 | 68.25 | 68.90 | 3806 | NASDAQ | ALGN | Thu, Mar 17, 2016 | 68.67 | 69.24 | 66.79 | 68.47 | 3805 | NASDAQ | ALGN | Wed, Mar 16, 2016 | 70.60 | 72.83 | 70.41 | 72.64 | 3804 | NASDAQ | ALGN | Tue, Mar 15, 2016 | 72.21 | 72.21 | 72.21 | 71.04 | 3803 | NASDAQ | ALGN | Mon, Mar 14, 2016 | 71.58 | 72.56 | 71.12 | 72.21 | 3802 | NASDAQ | ALGN | Fri, Mar 11, 2016 | 71.22 | 72.75 | 70.84 | 72.30 | 3801 | NASDAQ | ALGN | Thu, Mar 10, 2016 | 70.69 | 70.69 | 70.69 | 70.42 | 3800 | NASDAQ | ALGN | Wed, Mar 9, 2016 | 70.60 | 70.60 | 70.60 | 70.69 | 3799 | NASDAQ | ALGN | Tue, Mar 8, 2016 | 71.07 | 71.51 | 69.84 | 71.55 | 3798 | NASDAQ | ALGN | Mon, Mar 7, 2016 | 70.35 | 71.65 | 69.84 | 71.55 | 3797 | NASDAQ | ALGN | Fri, Mar 4, 2016 | 69.44 | 69.44 | 69.44 | 70.39 | 3796 | NASDAQ | ALGN | Thu, Mar 3, 2016 | 68.51 | 68.51 | 68.51 | 69.44 | 3795 | NASDAQ | ALGN | Wed, Mar 2, 2016 | 67.98 | 68.62 | 66.72 | 67.86 | 3794 | NASDAQ | ALGN | Tue, Mar 1, 2016 | 66.03 | 66.03 | 66.03 | 67.86 | 3793 | NASDAQ | ALGN | Mon, Feb 29, 2016 | 65.32 | 66.25 | 65.08 | 65.40 | 3792 | NASDAQ | ALGN | Fri, Feb 26, 2016 | 64.20 | 65.62 | 64.16 | 65.40 | 3791 | NASDAQ | ALGN | Thu, Feb 25, 2016 | 63.50 | 64.50 | 62.25 | 64.46 | 3790 | NASDAQ | ALGN | Wed, Feb 24, 2016 | 62.24 | 63.55 | 61.49 | 63.32 | 3789 | NASDAQ | ALGN | Tue, Feb 23, 2016 | 63.42 | 64.50 | 62.82 | 62.94 | 3788 | NASDAQ | ALGN | Mon, Feb 22, 2016 | 63.77 | 64.66 | 63.68 | 64.33 | 3787 | NASDAQ | ALGN | Fri, Feb 19, 2016 | 62.35 | 63.44 | 61.44 | 63.29 | 3786 | NASDAQ | ALGN | Thu, Feb 18, 2016 | 63.62 | 63.83 | 62.39 | 62.88 | 3785 | NASDAQ | ALGN | Wed, Feb 17, 2016 | 62.07 | 63.66 | 61.06 | 63.10 | 3784 | NASDAQ | ALGN | Tue, Feb 16, 2016 | 59.61 | 61.95 | 58.96 | 61.87 | 3783 | NASDAQ | ALGN | Fri, Feb 12, 2016 | 59.74 | 59.95 | 58.00 | 58.78 | 3782 | NASDAQ | ALGN | Thu, Feb 11, 2016 | 59.21 | 59.72 | 57.75 | 58.79 | 3781 | NASDAQ | ALGN | Wed, Feb 10, 2016 | 59.21 | 62.68 | 58.69 | 60.13 | 3780 | NASDAQ | ALGN | Tue, Feb 9, 2016 | 58.22 | 59.74 | 58.05 | 58.66 | 3779 | NASDAQ | ALGN | Mon, Feb 8, 2016 | 65.00 | 65.00 | 57.51 | 58.65 | 3778 | NASDAQ | ALGN | Fri, Feb 5, 2016 | 67.10 | 67.34 | 65.02 | 65.87 | 3777 | NASDAQ | ALGN | Thu, Feb 4, 2016 | 67.01 | 67.99 | 66.59 | 67.38 | 3776 | NASDAQ | ALGN | Wed, Feb 3, 2016 | 67.76 | 68.00 | 65.25 | 67.17 | 3775 | NASDAQ | ALGN | Tue, Feb 2, 2016 | 65.65 | 67.75 | 65.57 | 67.54 | 3774 | NASDAQ | ALGN | Mon, Feb 1, 2016 | 66.11 | 68.03 | 65.58 | 67.55 | 3773 | NASDAQ | ALGN | Fri, Jan 29, 2016 | 64.50 | 69.36 | 62.89 | 66.14 | 3772 | NASDAQ | ALGN | Thu, Jan 28, 2016 | 61.58 | 62.20 | 58.43 | 59.51 | 3771 | NASDAQ | ALGN | Wed, Jan 27, 2016 | 62.40 | 62.94 | 61.21 | 61.42 | 3770 | NASDAQ | ALGN | Tue, Jan 26, 2016 | 60.47 | 62.34 | 59.94 | 62.21 | 3769 | NASDAQ | ALGN | Mon, Jan 25, 2016 | 60.81 | 61.33 | 60.17 | 60.39 | 3768 | NASDAQ | ALGN | Fri, Jan 22, 2016 | 61.18 | 61.46 | 59.86 | 60.95 | 3767 | NASDAQ | ALGN | Thu, Jan 21, 2016 | 60.46 | 61.35 | 59.88 | 60.73 | 3766 | NASDAQ | ALGN | Wed, Jan 20, 2016 | 59.16 | 60.94 | 57.31 | 60.33 | 3765 | NASDAQ | ALGN | Tue, Jan 19, 2016 | 60.27 | 61.05 | 59.31 | 59.77 | 3764 | NASDAQ | ALGN | Fri, Jan 15, 2016 | 58.70 | 59.86 | 57.83 | 59.86 | 3763 | NASDAQ | ALGN | Thu, Jan 14, 2016 | 59.31 | 60.52 | 58.18 | 59.99 | 3762 | NASDAQ | ALGN | Wed, Jan 13, 2016 | 61.89 | 62.03 | 58.68 | 58.86 | 3761 | NASDAQ | ALGN | Tue, Jan 12, 2016 | 61.00 | 62.21 | 60.61 | 61.77 | 3760 | NASDAQ | ALGN | Mon, Jan 11, 2016 | 64.78 | 64.95 | 60.44 | 61.00 | 3759 | NASDAQ | ALGN | Fri, Jan 8, 2016 | 64.38 | 66.10 | 63.94 | 64.53 | 3758 | NASDAQ | ALGN | Thu, Jan 7, 2016 | 63.53 | 64.89 | 62.91 | 63.50 | 3757 | NASDAQ | ALGN | Wed, Jan 6, 2016 | 64.11 | 65.82 | 64.03 | 64.87 | 3756 | NASDAQ | ALGN | Tue, Jan 5, 2016 | 64.64 | 67.00 | 64.64 | 64.95 | 3755 | NASDAQ | ALGN | Mon, Jan 4, 2016 | 64.99 | 65.00 | 63.43 | 64.27 | 3754 | NASDAQ | ALGN | Thu, Dec 31, 2015 | 66.50 | 67.37 | 65.79 | 65.85 | 3753 | NASDAQ | ALGN | Wed, Dec 30, 2015 | 66.41 | 66.64 | 66.07 | 66.10 | 3752 | NASDAQ | ALGN | Tue, Dec 29, 2015 | 66.93 | 67.37 | 66.01 | 66.37 | 3751 | NASDAQ | ALGN | Mon, Dec 28, 2015 | 65.10 | 66.49 | 65.10 | 66.34 | 3750 | NASDAQ | ALGN | Thu, Dec 24, 2015 | 65.36 | 65.73 | 65.22 | 65.39 | 3749 | NASDAQ | ALGN | Wed, Dec 23, 2015 | 65.75 | 65.91 | 63.84 | 65.12 | 3748 | NASDAQ | ALGN | Tue, Dec 22, 2015 | 64.72 | 65.85 | 64.10 | 65.42 | 3747 | NASDAQ | ALGN | Mon, Dec 21, 2015 | 64.46 | 64.68 | 63.73 | 64.21 | 3746 | NASDAQ | ALGN | Fri, Dec 18, 2015 | 64.41 | 64.72 | 63.85 | 64.16 | 3745 | NASDAQ | ALGN | Thu, Dec 17, 2015 | 65.75 | 65.94 | 64.11 | 64.77 | 3744 | NASDAQ | ALGN | Wed, Dec 16, 2015 | 66.11 | 66.31 | 63.19 | 65.76 | 3743 | NASDAQ | ALGN | Tue, Dec 15, 2015 | 65.69 | 66.16 | 64.58 | 65.84 | 3742 | NASDAQ | ALGN | Mon, Dec 14, 2015 | 65.20 | 65.69 | 64.40 | 65.04 | 3741 | NASDAQ | ALGN | Fri, Dec 11, 2015 | 64.69 | 65.35 | 64.03 | 65.09 | 3740 | NASDAQ | ALGN | Thu, Dec 10, 2015 | 65.04 | 66.35 | 64.46 | 65.03 | 3739 | NASDAQ | ALGN | Wed, Dec 9, 2015 | 66.17 | 66.96 | 64.52 | 64.84 | 3738 | NASDAQ | ALGN | Tue, Dec 8, 2015 | 66.23 | 66.72 | 65.13 | 66.58 | 3737 | NASDAQ | ALGN | Mon, Dec 7, 2015 | 65.71 | 66.59 | 65.06 | 66.47 | 3736 | NASDAQ | ALGN | Fri, Dec 4, 2015 | 65.80 | 66.29 | 64.52 | 65.56 | 3735 | NASDAQ | ALGN | Thu, Dec 3, 2015 | 68.33 | 68.42 | 65.58 | 65.82 | 3734 | NASDAQ | ALGN | Wed, Dec 2, 2015 | 67.34 | 68.33 | 67.09 | 67.93 | 3733 | NASDAQ | ALGN | Tue, Dec 1, 2015 | 66.86 | 67.23 | 66.15 | 67.09 | 3732 | NASDAQ | ALGN | Mon, Nov 30, 2015 | 67.79 | 68.00 | 66.45 | 66.74 | 3731 | NASDAQ | ALGN | Fri, Nov 27, 2015 | 67.73 | 67.97 | 67.25 | 67.65 | 3730 | NASDAQ | ALGN | Wed, Nov 25, 2015 | 67.46 | 67.97 | 67.22 | 67.76 | 3729 | NASDAQ | ALGN | Tue, Nov 24, 2015 | 67.00 | 67.30 | 66.19 | 67.25 | 3728 | NASDAQ | ALGN | Mon, Nov 23, 2015 | 67.04 | 67.68 | 66.92 | 67.21 | 3727 | NASDAQ | ALGN | Fri, Nov 20, 2015 | 67.36 | 67.96 | 66.92 | 67.19 | 3726 | NASDAQ | ALGN | Thu, Nov 19, 2015 | 66.38 | 67.46 | 66.00 | 67.39 | 3725 | NASDAQ | ALGN | Wed, Nov 18, 2015 | 66.63 | 66.72 | 65.14 | 66.33 | 3724 | NASDAQ | ALGN | Tue, Nov 17, 2015 | 65.33 | 66.41 | 65.11 | 65.28 | 3723 | NASDAQ | ALGN | Mon, Nov 16, 2015 | 63.65 | 65.23 | 63.05 | 65.15 | 3722 | NASDAQ | ALGN | Fri, Nov 13, 2015 | 64.00 | 64.36 | 63.60 | 63.67 | 3721 | NASDAQ | ALGN | Thu, Nov 12, 2015 | 65.04 | 65.60 | 63.88 | 64.00 | 3720 | NASDAQ | ALGN | Wed, Nov 11, 2015 | 66.00 | 66.19 | 65.43 | 65.59 | 3719 | NASDAQ | ALGN | Tue, Nov 10, 2015 | 66.66 | 67.11 | 64.69 | 66.10 | 3718 | NASDAQ | ALGN | Mon, Nov 9, 2015 | 66.93 | 67.98 | 66.57 | 67.08 | 3717 | NASDAQ | ALGN | Fri, Nov 6, 2015 | 66.16 | 67.19 | 65.94 | 67.17 | 3716 | NASDAQ | ALGN | Thu, Nov 5, 2015 | 66.60 | 66.80 | 65.78 | 66.39 | 3715 | NASDAQ | ALGN | Wed, Nov 4, 2015 | 67.18 | 67.31 | 65.98 | 66.53 | 3714 | NASDAQ | ALGN | Tue, Nov 3, 2015 | 66.20 | 66.96 | 65.61 | 66.93 | 3713 | NASDAQ | ALGN | Mon, Nov 2, 2015 | 65.76 | 67.08 | 65.15 | 66.37 | 3712 | NASDAQ | ALGN | Fri, Oct 30, 2015 | 65.39 | 65.97 | 64.56 | 65.46 | 3711 | NASDAQ | ALGN | Thu, Oct 29, 2015 | 66.47 | 66.47 | 65.28 | 65.70 | 3710 | NASDAQ | ALGN | Wed, Oct 28, 2015 | 67.12 | 67.12 | 65.39 | 66.30 | 3709 | NASDAQ | ALGN | Tue, Oct 27, 2015 | 68.00 | 68.16 | 66.22 | 67.09 | 3708 | NASDAQ | ALGN | Mon, Oct 26, 2015 | 67.00 | 68.43 | 66.18 | 68.27 | 3707 | NASDAQ | ALGN | Fri, Oct 23, 2015 | 64.50 | 68.48 | 64.40 | 67.97 | 3706 | NASDAQ | ALGN | Thu, Oct 22, 2015 | 61.76 | 61.90 | 60.35 | 60.78 | 3705 | NASDAQ | ALGN | Wed, Oct 21, 2015 | 62.44 | 62.44 | 60.74 | 61.59 | 3704 | NASDAQ | ALGN | Tue, Oct 20, 2015 | 61.28 | 62.00 | 60.72 | 61.98 | 3703 | NASDAQ | ALGN | Mon, Oct 19, 2015 | 60.47 | 61.73 | 60.33 | 61.10 | 3702 | NASDAQ | ALGN | Fri, Oct 16, 2015 | 60.83 | 61.42 | 59.84 | 60.65 | 3701 | NASDAQ | ALGN | Thu, Oct 15, 2015 | 57.13 | 60.93 | 56.98 | 60.65 | 3700 | NASDAQ | ALGN | Wed, Oct 14, 2015 | 56.52 | 57.05 | 55.32 | 56.50 | 3699 | NASDAQ | ALGN | Tue, Oct 13, 2015 | 56.83 | 57.53 | 56.16 | 56.21 | 3698 | NASDAQ | ALGN | Mon, Oct 12, 2015 | 56.45 | 57.66 | 56.38 | 57.26 | 3697 | NASDAQ | ALGN | Fri, Oct 9, 2015 | 56.33 | 56.63 | 55.68 | 56.39 | 3696 | NASDAQ | ALGN | Thu, Oct 8, 2015 | 56.59 | 56.96 | 55.43 | 56.23 | 3695 | NASDAQ | ALGN | Wed, Oct 7, 2015 | 56.05 | 56.83 | 55.37 | 56.55 | 3694 | NASDAQ | ALGN | Tue, Oct 6, 2015 | 58.55 | 58.96 | 55.53 | 55.75 | 3693 | NASDAQ | ALGN | Mon, Oct 5, 2015 | 57.30 | 58.59 | 57.30 | 58.47 | 3692 | NASDAQ | ALGN | Fri, Oct 2, 2015 | 54.91 | 56.97 | 54.69 | 56.91 | 3691 | NASDAQ | ALGN | Thu, Oct 1, 2015 | 56.58 | 56.79 | 55.00 | 55.44 | 3690 | NASDAQ | ALGN | Wed, Sep 30, 2015 | 56.24 | 56.94 | 55.51 | 56.76 | 3689 | NASDAQ | ALGN | Tue, Sep 29, 2015 | 55.51 | 56.80 | 55.15 | 55.91 | 3688 | NASDAQ | ALGN | Mon, Sep 28, 2015 | 56.17 | 56.47 | 54.64 | 55.33 | 3687 | NASDAQ | ALGN | Fri, Sep 25, 2015 | 57.37 | 57.79 | 55.91 | 56.65 | 3686 | NASDAQ | ALGN | Thu, Sep 24, 2015 | 56.81 | 57.10 | 56.09 | 56.96 | 3685 | NASDAQ | ALGN | Wed, Sep 23, 2015 | 56.85 | 57.54 | 56.71 | 57.21 | 3684 | NASDAQ | ALGN | Tue, Sep 22, 2015 | 56.45 | 56.98 | 56.12 | 56.87 | 3683 | NASDAQ | ALGN | Mon, Sep 21, 2015 | 57.50 | 58.07 | 56.68 | 57.01 | 3682 | NASDAQ | ALGN | Fri, Sep 18, 2015 | 57.74 | 58.54 | 57.24 | 57.42 | 3681 | NASDAQ | ALGN | Thu, Sep 17, 2015 | 56.73 | 59.47 | 56.45 | 58.45 | 3680 | NASDAQ | ALGN | Wed, Sep 16, 2015 | 56.33 | 56.79 | 56.12 | 56.60 | 3679 | NASDAQ | ALGN | Tue, Sep 15, 2015 | 55.84 | 56.66 | 55.03 | 56.52 | 3678 | NASDAQ | ALGN | Mon, Sep 14, 2015 | 55.66 | 55.88 | 55.38 | 55.61 | 3677 | NASDAQ | ALGN | Fri, Sep 11, 2015 | 55.53 | 56.90 | 55.09 | 55.55 | 3676 | NASDAQ | ALGN | Thu, Sep 10, 2015 | 54.69 | 55.84 | 54.34 | 55.19 | 3675 | NASDAQ | ALGN | Wed, Sep 9, 2015 | 56.03 | 56.21 | 54.85 | 54.97 | 3674 | NASDAQ | ALGN | Tue, Sep 8, 2015 | 55.21 | 55.52 | 54.70 | 55.40 | 3673 | NASDAQ | ALGN | Fri, Sep 4, 2015 | 54.44 | 54.87 | 53.75 | 54.28 | 3672 | NASDAQ | ALGN | Thu, Sep 3, 2015 | 55.17 | 55.86 | 54.88 | 55.13 | 3671 | NASDAQ | ALGN | Wed, Sep 2, 2015 | 54.49 | 55.13 | 53.57 | 55.10 | 3670 | NASDAQ | ALGN | Tue, Sep 1, 2015 | 55.62 | 56.44 | 53.85 | 53.94 | 3669 | NASDAQ | ALGN | Mon, Aug 31, 2015 | 57.07 | 57.84 | 56.55 | 56.60 | 3668 | NASDAQ | ALGN | Fri, Aug 28, 2015 | 57.02 | 57.36 | 56.36 | 57.27 | 3667 | NASDAQ | ALGN | Thu, Aug 27, 2015 | 56.83 | 57.49 | 55.82 | 56.82 | 3666 | NASDAQ | ALGN | Wed, Aug 26, 2015 | 55.53 | 56.22 | 54.71 | 55.95 | 3665 | NASDAQ | ALGN | Tue, Aug 25, 2015 | 56.38 | 56.47 | 54.15 | 54.23 | 3664 | NASDAQ | ALGN | Mon, Aug 24, 2015 | 53.39 | 56.41 | 52.01 | 54.55 | 3663 | NASDAQ | ALGN | Fri, Aug 21, 2015 | 57.64 | 57.99 | 56.39 | 56.45 | 3662 | NASDAQ | ALGN | Thu, Aug 20, 2015 | 59.50 | 59.50 | 57.96 | 58.02 | 3661 | NASDAQ | ALGN | Wed, Aug 19, 2015 | 60.07 | 60.43 | 59.44 | 59.73 | 3660 | NASDAQ | ALGN | Tue, Aug 18, 2015 | 60.81 | 61.32 | 60.32 | 60.52 | 3659 | NASDAQ | ALGN | Mon, Aug 17, 2015 | 60.48 | 60.99 | 60.05 | 60.88 | 3658 | NASDAQ | ALGN | Fri, Aug 14, 2015 | 60.00 | 60.67 | 59.68 | 60.57 | 3657 | NASDAQ | ALGN | Thu, Aug 13, 2015 | 60.63 | 61.27 | 60.14 | 60.20 | 3656 | NASDAQ | ALGN | Wed, Aug 12, 2015 | 60.33 | 60.95 | 59.67 | 60.83 | 3655 | NASDAQ | ALGN | Tue, Aug 11, 2015 | 61.13 | 61.78 | 60.77 | 61.15 | 3654 | NASDAQ | ALGN | Mon, Aug 10, 2015 | 61.05 | 61.97 | 61.05 | 61.70 | 3653 | NASDAQ | ALGN | Fri, Aug 7, 2015 | 60.94 | 61.21 | 60.16 | 60.73 | 3652 | NASDAQ | ALGN | Thu, Aug 6, 2015 | 61.95 | 62.04 | 60.55 | 60.94 | 3651 | NASDAQ | ALGN | Wed, Aug 5, 2015 | 61.87 | 62.60 | 61.50 | 62.07 | 3650 | NASDAQ | ALGN | Tue, Aug 4, 2015 | 62.33 | 62.83 | 61.39 | 61.44 | 3649 | NASDAQ | ALGN | Mon, Aug 3, 2015 | 62.48 | 63.06 | 61.50 | 62.61 | 3648 | NASDAQ | ALGN | Fri, Jul 31, 2015 | 62.59 | 63.53 | 62.08 | 62.70 | 3647 | NASDAQ | ALGN | Thu, Jul 30, 2015 | 62.80 | 62.93 | 62.14 | 62.36 | 3646 | NASDAQ | ALGN | Wed, Jul 29, 2015 | 61.48 | 62.70 | 60.73 | 62.60 | 3645 | NASDAQ | ALGN | Tue, Jul 28, 2015 | 61.20 | 61.61 | 60.18 | 61.20 | 3644 | NASDAQ | ALGN | Mon, Jul 27, 2015 | 59.59 | 60.98 | 58.86 | 60.98 | 3643 | NASDAQ | ALGN | Fri, Jul 24, 2015 | 63.50 | 64.60 | 60.05 | 60.40 | 3642 | NASDAQ | ALGN | Thu, Jul 23, 2015 | 65.74 | 66.53 | 65.17 | 65.59 | 3641 | NASDAQ | ALGN | Wed, Jul 22, 2015 | 64.83 | 65.53 | 64.73 | 65.23 | 3640 | NASDAQ | ALGN | Tue, Jul 21, 2015 | 66.45 | 66.45 | 64.74 | 65.16 | 3639 | NASDAQ | ALGN | Mon, Jul 20, 2015 | 65.08 | 66.46 | 64.95 | 66.04 | 3638 | NASDAQ | ALGN | Fri, Jul 17, 2015 | 65.46 | 65.63 | 64.72 | 64.93 | 3637 | NASDAQ | ALGN | Thu, Jul 16, 2015 | 65.05 | 65.58 | 64.71 | 65.37 | 3636 | NASDAQ | ALGN | Wed, Jul 15, 2015 | 64.50 | 65.04 | 63.97 | 64.63 | 3635 | NASDAQ | ALGN | Tue, Jul 14, 2015 | 63.53 | 64.51 | 63.53 | 64.31 | 3634 | NASDAQ | ALGN | Mon, Jul 13, 2015 | 63.26 | 63.82 | 62.68 | 63.61 | 3633 | NASDAQ | ALGN | Fri, Jul 10, 2015 | 62.84 | 63.15 | 62.26 | 62.94 | 3632 | NASDAQ | ALGN | Thu, Jul 9, 2015 | 63.36 | 63.37 | 62.01 | 62.20 | 3631 | NASDAQ | ALGN | Wed, Jul 8, 2015 | 63.24 | 63.71 | 62.10 | 62.74 | 3630 | NASDAQ | ALGN | Tue, Jul 7, 2015 | 62.79 | 63.66 | 61.78 | 63.50 | 3629 | NASDAQ | ALGN | Mon, Jul 6, 2015 | 62.72 | 64.18 | 62.29 | 62.50 | 3628 | NASDAQ | ALGN | Thu, Jul 2, 2015 | 63.37 | 64.00 | 62.80 | 63.29 | 3627 | NASDAQ | ALGN | Wed, Jul 1, 2015 | 63.18 | 63.75 | 62.62 | 63.22 | 3626 | NASDAQ | ALGN | Tue, Jun 30, 2015 | 62.34 | 63.11 | 61.65 | 62.71 | 3625 | NASDAQ | ALGN | Mon, Jun 29, 2015 | 62.26 | 62.74 | 61.54 | 61.65 | 3624 | NASDAQ | ALGN | Fri, Jun 26, 2015 | 61.88 | 62.66 | 61.69 | 62.63 | 3623 | NASDAQ | ALGN | Thu, Jun 25, 2015 | 61.25 | 62.17 | 61.17 | 61.57 | 3622 | NASDAQ | ALGN | Wed, Jun 24, 2015 | 63.00 | 63.17 | 60.93 | 61.12 | 3621 | NASDAQ | ALGN | Tue, Jun 23, 2015 | 63.31 | 63.60 | 62.52 | 62.98 | 3620 | NASDAQ | ALGN | Mon, Jun 22, 2015 | 63.71 | 63.71 | 62.80 | 63.31 | 3619 | NASDAQ | ALGN | Fri, Jun 19, 2015 | 62.40 | 63.48 | 62.21 | 63.24 | 3618 | NASDAQ | ALGN | Thu, Jun 18, 2015 | 62.29 | 63.48 | 62.00 | 62.15 | 3617 | NASDAQ | ALGN | Wed, Jun 17, 2015 | 64.54 | 64.99 | 59.56 | 62.29 | 3616 | NASDAQ | ALGN | Tue, Jun 16, 2015 | 63.04 | 64.31 | 62.75 | 64.29 | 3615 | NASDAQ | ALGN | Mon, Jun 15, 2015 | 62.66 | 63.40 | 61.76 | 63.22 | 3614 | NASDAQ | ALGN | Fri, Jun 12, 2015 | 62.83 | 63.37 | 62.39 | 63.02 | 3613 | NASDAQ | ALGN | Thu, Jun 11, 2015 | 62.59 | 63.05 | 62.20 | 62.96 | 3612 | NASDAQ | ALGN | Wed, Jun 10, 2015 | 61.92 | 62.65 | 61.04 | 62.52 | 3611 | NASDAQ | ALGN | Tue, Jun 9, 2015 | 62.11 | 62.36 | 61.32 | 61.58 | 3610 | NASDAQ | ALGN | Mon, Jun 8, 2015 | 63.05 | 63.23 | 61.73 | 61.99 | 3609 | NASDAQ | ALGN | Fri, Jun 5, 2015 | 62.73 | 62.98 | 61.81 | 62.91 | 3608 | NASDAQ | ALGN | Thu, Jun 4, 2015 | 63.11 | 63.36 | 62.39 | 62.79 | 3607 | NASDAQ | ALGN | Wed, Jun 3, 2015 | 62.75 | 63.93 | 62.40 | 63.40 | 3606 | NASDAQ | ALGN | Tue, Jun 2, 2015 | 61.39 | 62.41 | 61.10 | 62.37 | 3605 | NASDAQ | ALGN | Mon, Jun 1, 2015 | 61.08 | 62.72 | 61.08 | 61.74 | 3604 | NASDAQ | ALGN | Fri, May 29, 2015 | 61.34 | 61.42 | 60.42 | 60.67 | 3603 | NASDAQ | ALGN | Thu, May 28, 2015 | 59.50 | 61.33 | 59.31 | 61.18 | 3602 | NASDAQ | ALGN | Wed, May 27, 2015 | 59.21 | 59.78 | 58.90 | 59.70 | 3601 | NASDAQ | ALGN | Tue, May 26, 2015 | 59.08 | 59.64 | 58.80 | 59.27 | 3600 | NASDAQ | ALGN | Fri, May 22, 2015 | 59.20 | 59.96 | 58.78 | 59.29 | 3599 | NASDAQ | ALGN | Thu, May 21, 2015 | 59.07 | 59.69 | 58.82 | 59.38 | 3598 | NASDAQ | ALGN | Wed, May 20, 2015 | 59.35 | 59.79 | 59.06 | 59.22 | 3597 | NASDAQ | ALGN | Tue, May 19, 2015 | 59.86 | 60.01 | 59.06 | 59.24 | 3596 | NASDAQ | ALGN | Mon, May 18, 2015 | 59.25 | 60.00 | 59.06 | 59.86 | 3595 | NASDAQ | ALGN | Fri, May 15, 2015 | 59.31 | 59.58 | 59.11 | 59.28 | 3594 | NASDAQ | ALGN | Thu, May 14, 2015 | 59.02 | 59.69 | 58.55 | 59.31 | 3593 | NASDAQ | ALGN | Wed, May 13, 2015 | 58.86 | 59.12 | 58.30 | 58.75 | 3592 | NASDAQ | ALGN | Tue, May 12, 2015 | 59.13 | 59.13 | 57.89 | 58.64 | 3591 | NASDAQ | ALGN | Mon, May 11, 2015 | 59.49 | 59.91 | 59.23 | 59.35 | 3590 | NASDAQ | ALGN | Fri, May 8, 2015 | 59.42 | 60.40 | 59.23 | 59.71 | 3589 | NASDAQ | ALGN | Thu, May 7, 2015 | 58.66 | 59.35 | 58.66 | 58.87 | 3588 | NASDAQ | ALGN | Wed, May 6, 2015 | 59.48 | 59.58 | 58.64 | 58.91 | 3587 | NASDAQ | ALGN | Tue, May 5, 2015 | 60.37 | 60.45 | 58.77 | 59.51 | 3586 | NASDAQ | ALGN | Mon, May 4, 2015 | 59.34 | 60.61 | 59.11 | 60.35 | 3585 | NASDAQ | ALGN | Fri, May 1, 2015 | 58.74 | 59.76 | 58.55 | 59.18 | 3584 | NASDAQ | ALGN | Thu, Apr 30, 2015 | 59.60 | 60.13 | 58.76 | 58.84 | 3583 | NASDAQ | ALGN | Wed, Apr 29, 2015 | 59.32 | 60.74 | 59.06 | 60.18 | 3582 | NASDAQ | ALGN | Tue, Apr 28, 2015 | 58.44 | 59.56 | 57.72 | 59.45 | 3581 | NASDAQ | ALGN | Mon, Apr 27, 2015 | 59.18 | 59.89 | 58.37 | 58.59 | 3580 | NASDAQ | ALGN | Fri, Apr 24, 2015 | 60.93 | 61.24 | 58.88 | 59.18 | 3579 | NASDAQ | ALGN | Thu, Apr 23, 2015 | 55.90 | 56.73 | 55.50 | 56.01 | 3578 | NASDAQ | ALGN | Wed, Apr 22, 2015 | 56.18 | 56.26 | 55.41 | 55.94 | 3577 | NASDAQ | ALGN | Tue, Apr 21, 2015 | 58.09 | 58.09 | 55.99 | 56.15 | 3576 | NASDAQ | ALGN | Mon, Apr 20, 2015 | 53.57 | 54.27 | 53.37 | 54.21 | 3575 | NASDAQ | ALGN | Fri, Apr 17, 2015 | 52.43 | 53.44 | 52.29 | 53.38 | 3574 | NASDAQ | ALGN | Thu, Apr 16, 2015 | 52.90 | 53.26 | 52.29 | 52.77 | 3573 | NASDAQ | ALGN | Wed, Apr 15, 2015 | 53.30 | 53.57 | 52.75 | 52.86 | 3572 | NASDAQ | ALGN | Tue, Apr 14, 2015 | 53.86 | 54.34 | 53.01 | 53.15 | 3571 | NASDAQ | ALGN | Mon, Apr 13, 2015 | 54.30 | 54.86 | 53.80 | 53.82 | 3570 | NASDAQ | ALGN | Fri, Apr 10, 2015 | 53.00 | 54.68 | 52.95 | 54.29 | 3569 | NASDAQ | ALGN | Thu, Apr 9, 2015 | 52.63 | 53.00 | 52.27 | 52.72 | 3568 | NASDAQ | ALGN | Wed, Apr 8, 2015 | 52.71 | 53.16 | 51.65 | 52.72 | 3567 | NASDAQ | ALGN | Tue, Apr 7, 2015 | 53.35 | 53.74 | 52.50 | 52.55 | 3566 | NASDAQ | ALGN | Mon, Apr 6, 2015 | 52.62 | 53.41 | 52.26 | 53.07 | 3565 | NASDAQ | ALGN | Thu, Apr 2, 2015 | 52.29 | 53.30 | 52.29 | 52.75 | 3564 | NASDAQ | ALGN | Wed, Apr 1, 2015 | 53.67 | 53.87 | 52.28 | 52.45 | 3563 | NASDAQ | ALGN | Tue, Mar 31, 2015 | 54.48 | 54.95 | 53.74 | 53.79 | 3562 | NASDAQ | ALGN | Mon, Mar 30, 2015 | 54.40 | 55.02 | 53.98 | 54.60 | 3561 | NASDAQ | ALGN | Fri, Mar 27, 2015 | 54.19 | 54.65 | 52.14 | 54.04 | 3560 | NASDAQ | ALGN | Thu, Mar 26, 2015 | 54.40 | 54.92 | 53.15 | 54.58 | 3559 | NASDAQ | ALGN | Wed, Mar 25, 2015 | 55.42 | 56.13 | 54.65 | 54.69 | 3558 | NASDAQ | ALGN | Tue, Mar 24, 2015 | 56.44 | 56.61 | 55.36 | 55.48 | 3557 | NASDAQ | ALGN | Mon, Mar 23, 2015 | 57.09 | 57.16 | 56.30 | 56.33 | 3556 | NASDAQ | ALGN | Fri, Mar 20, 2015 | 58.52 | 58.52 | 56.78 | 57.18 | 3555 | NASDAQ | ALGN | Thu, Mar 19, 2015 | 56.30 | 58.39 | 56.19 | 58.32 | 3554 | NASDAQ | ALGN | Wed, Mar 18, 2015 | 56.12 | 56.71 | 55.71 | 56.38 | 3553 | NASDAQ | ALGN | Tue, Mar 17, 2015 | 56.00 | 56.42 | 55.40 | 56.19 | 3552 | NASDAQ | ALGN | Mon, Mar 16, 2015 | 56.11 | 56.68 | 55.91 | 56.34 | 3551 | NASDAQ | ALGN | Fri, Mar 13, 2015 | 56.98 | 57.22 | 55.40 | 55.98 | 3550 | NASDAQ | ALGN | Thu, Mar 12, 2015 | 57.00 | 57.21 | 56.34 | 56.99 | 3549 | NASDAQ | ALGN | Wed, Mar 11, 2015 | 56.84 | 57.68 | 56.52 | 56.93 | 3548 | NASDAQ | ALGN | Tue, Mar 10, 2015 | 56.44 | 57.42 | 56.35 | 56.86 | 3547 | NASDAQ | ALGN | Mon, Mar 9, 2015 | 57.03 | 57.29 | 56.23 | 56.49 | 3546 | NASDAQ | ALGN | Fri, Mar 6, 2015 | 57.77 | 58.16 | 56.76 | 57.09 | 3545 | NASDAQ | ALGN | Thu, Mar 5, 2015 | 57.15 | 58.13 | 56.93 | 57.89 | 3544 | NASDAQ | ALGN | Wed, Mar 4, 2015 | 57.00 | 57.32 | 56.60 | 57.15 | 3543 | NASDAQ | ALGN | Tue, Mar 3, 2015 | 57.75 | 57.87 | 56.78 | 56.97 | 3542 | NASDAQ | ALGN | Mon, Mar 2, 2015 | 57.96 | 58.15 | 57.16 | 57.76 | 3541 | NASDAQ | ALGN | Fri, Feb 27, 2015 | 56.34 | 57.53 | 55.86 | 57.35 | 3540 | NASDAQ | ALGN | Thu, Feb 26, 2015 | 55.72 | 56.64 | 55.63 | 56.43 | 3539 | NASDAQ | ALGN | Wed, Feb 25, 2015 | 56.78 | 57.14 | 55.99 | 56.16 | 3538 | NASDAQ | ALGN | Tue, Feb 24, 2015 | 56.55 | 56.82 | 56.18 | 56.56 | 3537 | NASDAQ | ALGN | Mon, Feb 23, 2015 | 56.37 | 56.77 | 56.08 | 56.54 | 3536 | NASDAQ | ALGN | Fri, Feb 20, 2015 | 56.85 | 57.25 | 56.40 | 56.81 | 3535 | NASDAQ | ALGN | Thu, Feb 19, 2015 | 56.57 | 57.10 | 56.09 | 56.81 | 3534 | NASDAQ | ALGN | Wed, Feb 18, 2015 | 57.65 | 57.67 | 55.85 | 56.54 | 3533 | NASDAQ | ALGN | Tue, Feb 17, 2015 | 56.90 | 58.16 | 56.40 | 57.63 | 3532 | NASDAQ | ALGN | Fri, Feb 13, 2015 | 57.05 | 57.32 | 56.72 | 56.90 | 3531 | NASDAQ | ALGN | Thu, Feb 12, 2015 | 56.36 | 57.36 | 55.82 | 57.24 | 3530 | NASDAQ | ALGN | Wed, Feb 11, 2015 | 55.70 | 56.15 | 55.26 | 55.80 | 3529 | NASDAQ | ALGN | Tue, Feb 10, 2015 | 54.65 | 55.80 | 54.29 | 55.74 | 3528 | NASDAQ | ALGN | Mon, Feb 9, 2015 | 54.23 | 55.08 | 54.01 | 55.02 | 3527 | NASDAQ | ALGN | Fri, Feb 6, 2015 | 54.96 | 55.49 | 54.34 | 54.63 | 3526 | NASDAQ | ALGN | Thu, Feb 5, 2015 | 54.64 | 55.30 | 54.25 | 55.00 | 3525 | NASDAQ | ALGN | Wed, Feb 4, 2015 | 54.26 | 55.31 | 53.99 | 54.30 | 3524 | NASDAQ | ALGN | Tue, Feb 3, 2015 | 55.22 | 55.98 | 54.05 | 54.68 | 3523 | NASDAQ | ALGN | Mon, Feb 2, 2015 | 53.00 | 55.30 | 52.02 | 55.18 | 3522 | NASDAQ | ALGN | Fri, Jan 30, 2015 | 52.79 | 55.15 | 51.77 | 53.05 | 3521 | NASDAQ | ALGN | Thu, Jan 29, 2015 | 58.05 | 58.78 | 56.64 | 58.67 | 3520 | NASDAQ | ALGN | Wed, Jan 28, 2015 | 59.42 | 60.17 | 58.46 | 58.57 | 3519 | NASDAQ | ALGN | Tue, Jan 27, 2015 | 57.56 | 58.88 | 57.08 | 58.75 | 3518 | NASDAQ | ALGN | Mon, Jan 26, 2015 | 57.47 | 58.34 | 56.66 | 58.20 | 3517 | NASDAQ | ALGN | Fri, Jan 23, 2015 | 58.03 | 58.16 | 57.01 | 57.46 | 3516 | NASDAQ | ALGN | Thu, Jan 22, 2015 | 56.13 | 58.11 | 55.96 | 58.01 | 3515 | NASDAQ | ALGN | Wed, Jan 21, 2015 | 56.24 | 57.05 | 55.67 | 55.90 | 3514 | NASDAQ | ALGN | Tue, Jan 20, 2015 | 57.09 | 57.22 | 55.45 | 56.24 | 3513 | NASDAQ | ALGN | Fri, Jan 16, 2015 | 59.03 | 59.20 | 56.01 | 56.92 | 3512 | NASDAQ | ALGN | Thu, Jan 15, 2015 | 61.39 | 61.94 | 59.50 | 59.63 | 3511 | NASDAQ | ALGN | Wed, Jan 14, 2015 | 61.42 | 62.51 | 60.63 | 61.06 | 3510 | NASDAQ | ALGN | Tue, Jan 13, 2015 | 63.59 | 64.75 | 62.00 | 62.65 | 3509 | NASDAQ | ALGN | Mon, Jan 12, 2015 | 62.87 | 63.30 | 62.67 | 63.17 | 3508 | NASDAQ | ALGN | Fri, Jan 9, 2015 | 61.67 | 62.82 | 61.50 | 62.58 | 3507 | NASDAQ | ALGN | Thu, Jan 8, 2015 | 60.00 | 61.67 | 59.74 | 61.44 | 3506 | NASDAQ | ALGN | Wed, Jan 7, 2015 | 57.97 | 59.75 | 57.45 | 59.57 | 3505 | NASDAQ | ALGN | Tue, Jan 6, 2015 | 57.33 | 57.94 | 56.79 | 57.45 | 3504 | NASDAQ | ALGN | Mon, Jan 5, 2015 | 55.89 | 57.52 | 55.64 | 56.99 | 3503 | NASDAQ | ALGN | Fri, Jan 2, 2015 | 57.24 | 58.38 | 55.78 | 56.20 | 3502 | NASDAQ | ALGN | Wed, Dec 31, 2014 | 56.42 | 57.36 | 55.85 | 55.91 | 3501 | NASDAQ | ALGN | Tue, Dec 30, 2014 | 56.30 | 56.85 | 56.18 | 56.36 | 3500 | NASDAQ | ALGN | Mon, Dec 29, 2014 | 56.57 | 57.04 | 56.29 | 56.33 | 3499 | NASDAQ | ALGN | Fri, Dec 26, 2014 | 57.33 | 57.52 | 56.49 | 56.66 | 3498 | NASDAQ | ALGN | Wed, Dec 24, 2014 | 57.00 | 57.64 | 56.89 | 57.01 | 3497 | NASDAQ | ALGN | Tue, Dec 23, 2014 | 57.32 | 57.35 | 55.80 | 56.84 | 3496 | NASDAQ | ALGN | Mon, Dec 22, 2014 | 56.74 | 57.33 | 56.21 | 56.88 | 3495 | NASDAQ | ALGN | Fri, Dec 19, 2014 | 56.27 | 57.21 | 55.89 | 56.83 | 3494 | NASDAQ | ALGN | Thu, Dec 18, 2014 | 56.44 | 56.64 | 55.55 | 56.10 | 3493 | NASDAQ | ALGN | Wed, Dec 17, 2014 | 54.84 | 55.57 | 54.01 | 55.45 | 3492 | NASDAQ | ALGN | Tue, Dec 16, 2014 | 55.69 | 56.13 | 54.87 | 55.08 | 3491 | NASDAQ | ALGN | Mon, Dec 15, 2014 | 56.07 | 56.11 | 54.99 | 55.41 | 3490 | NASDAQ | ALGN | Fri, Dec 12, 2014 | 55.90 | 56.75 | 55.58 | 55.73 | 3489 | NASDAQ | ALGN | Thu, Dec 11, 2014 | 56.96 | 57.67 | 56.44 | 56.46 | 3488 | NASDAQ | ALGN | Wed, Dec 10, 2014 | 57.52 | 57.70 | 56.51 | 56.57 | 3487 | NASDAQ | ALGN | Tue, Dec 9, 2014 | 56.00 | 57.72 | 55.56 | 57.63 | 3486 | NASDAQ | ALGN | Mon, Dec 8, 2014 | 56.60 | 57.35 | 56.60 | 56.84 | 3485 | NASDAQ | ALGN | Fri, Dec 5, 2014 | 56.30 | 56.87 | 56.11 | 56.79 | 3484 | NASDAQ | ALGN | Thu, Dec 4, 2014 | 56.39 | 56.74 | 56.00 | 56.33 | 3483 | NASDAQ | ALGN | Wed, Dec 3, 2014 | 57.39 | 57.39 | 55.96 | 56.32 | 3482 | NASDAQ | ALGN | Tue, Dec 2, 2014 | 56.00 | 57.13 | 55.76 | 57.00 | 3481 | NASDAQ | ALGN | Mon, Dec 1, 2014 | 56.74 | 56.81 | 55.84 | 55.85 | 3480 | NASDAQ | ALGN | Fri, Nov 28, 2014 | 57.34 | 57.58 | 56.76 | 56.90 | 3479 | NASDAQ | ALGN | Wed, Nov 26, 2014 | 56.95 | 57.38 | 56.85 | 57.34 | 3478 | NASDAQ | ALGN | Tue, Nov 25, 2014 | 57.54 | 57.71 | 56.58 | 57.30 | 3477 | NASDAQ | ALGN | Mon, Nov 24, 2014 | 55.64 | 57.02 | 55.55 | 56.98 | 3476 | NASDAQ | ALGN | Fri, Nov 21, 2014 | 55.66 | 56.01 | 55.18 | 55.66 | 3475 | NASDAQ | ALGN | Thu, Nov 20, 2014 | 54.01 | 55.13 | 53.66 | 55.13 | 3474 | NASDAQ | ALGN | Wed, Nov 19, 2014 | 54.58 | 54.58 | 53.89 | 54.42 | 3473 | NASDAQ | ALGN | Tue, Nov 18, 2014 | 54.40 | 55.11 | 54.11 | 54.76 | 3472 | NASDAQ | ALGN | Mon, Nov 17, 2014 | 54.37 | 54.91 | 54.07 | 54.25 | 3471 | NASDAQ | ALGN | Fri, Nov 14, 2014 | 54.62 | 54.92 | 54.08 | 54.27 | 3470 | NASDAQ | ALGN | Thu, Nov 13, 2014 | 54.81 | 54.95 | 54.27 | 54.50 | 3469 | NASDAQ | ALGN | Wed, Nov 12, 2014 | 53.11 | 54.91 | 53.11 | 54.86 | 3468 | NASDAQ | ALGN | Tue, Nov 11, 2014 | 52.28 | 53.60 | 52.01 | 53.57 | 3467 | NASDAQ | ALGN | Mon, Nov 10, 2014 | 52.63 | 53.21 | 52.01 | 52.37 | 3466 | NASDAQ | ALGN | Fri, Nov 7, 2014 | 52.77 | 52.80 | 52.14 | 52.39 | 3465 | NASDAQ | ALGN | Thu, Nov 6, 2014 | 51.81 | 52.70 | 51.64 | 52.63 | 3464 | NASDAQ | ALGN | Wed, Nov 5, 2014 | 52.57 | 52.98 | 51.71 | 51.84 | 3463 | NASDAQ | ALGN | Tue, Nov 4, 2014 | 51.95 | 52.42 | 51.76 | 52.23 | 3462 | NASDAQ | ALGN | Mon, Nov 3, 2014 | 52.77 | 53.05 | 51.79 | 51.81 | 3461 | NASDAQ | ALGN | Fri, Oct 31, 2014 | 52.49 | 52.88 | 52.06 | 52.62 | 3460 | NASDAQ | ALGN | Thu, Oct 30, 2014 | 51.90 | 52.31 | 51.27 | 51.95 | 3459 | NASDAQ | ALGN | Wed, Oct 29, 2014 | 52.10 | 52.45 | 51.65 | 52.18 | 3458 | NASDAQ | ALGN | Tue, Oct 28, 2014 | 51.32 | 52.83 | 50.94 | 52.21 | 3457 | NASDAQ | ALGN | Mon, Oct 27, 2014 | 51.02 | 51.47 | 50.79 | 51.32 | 3456 | NASDAQ | ALGN | Fri, Oct 24, 2014 | 51.92 | 53.23 | 50.56 | 51.50 | 3455 | NASDAQ | ALGN | Thu, Oct 23, 2014 | 48.60 | 49.61 | 48.29 | 49.04 | 3454 | NASDAQ | ALGN | Wed, Oct 22, 2014 | 48.98 | 49.02 | 47.94 | 47.98 | 3453 | NASDAQ | ALGN | Tue, Oct 21, 2014 | 47.87 | 48.90 | 47.87 | 48.80 | 3452 | NASDAQ | ALGN | Mon, Oct 20, 2014 | 48.32 | 48.48 | 46.82 | 47.59 | 3451 | NASDAQ | ALGN | Fri, Oct 17, 2014 | 45.80 | 46.03 | 45.12 | 45.38 | 3450 | NASDAQ | ALGN | Thu, Oct 16, 2014 | 44.12 | 45.43 | 44.03 | 45.16 | 3449 | NASDAQ | ALGN | Wed, Oct 15, 2014 | 43.68 | 44.95 | 43.27 | 44.56 | 3448 | NASDAQ | ALGN | Tue, Oct 14, 2014 | 45.21 | 45.87 | 44.16 | 44.37 | 3447 | NASDAQ | ALGN | Mon, Oct 13, 2014 | 45.11 | 46.96 | 44.76 | 44.96 | 3446 | NASDAQ | ALGN | Fri, Oct 10, 2014 | 46.56 | 47.02 | 45.19 | 45.22 | 3445 | NASDAQ | ALGN | Thu, Oct 9, 2014 | 47.58 | 47.77 | 46.61 | 46.63 | 3444 | NASDAQ | ALGN | Wed, Oct 8, 2014 | 46.92 | 47.87 | 46.50 | 47.79 | 3443 | NASDAQ | ALGN | Tue, Oct 7, 2014 | 47.64 | 47.86 | 47.02 | 47.03 | 3442 | NASDAQ | ALGN | Mon, Oct 6, 2014 | 48.76 | 48.93 | 47.83 | 47.86 | 3441 | NASDAQ | ALGN | Fri, Oct 3, 2014 | 48.95 | 49.05 | 48.02 | 48.49 | 3440 | NASDAQ | ALGN | Thu, Oct 2, 2014 | 49.94 | 50.11 | 47.61 | 48.80 | 3439 | NASDAQ | ALGN | Wed, Oct 1, 2014 | 51.81 | 51.86 | 50.00 | 50.07 | 3438 | NASDAQ | ALGN | Tue, Sep 30, 2014 | 53.23 | 53.51 | 51.66 | 51.68 | 3437 | NASDAQ | ALGN | Mon, Sep 29, 2014 | 52.52 | 53.43 | 52.52 | 53.12 | 3436 | NASDAQ | ALGN | Fri, Sep 26, 2014 | 52.97 | 53.42 | 52.46 | 53.19 | 3435 | NASDAQ | ALGN | Thu, Sep 25, 2014 | 53.59 | 53.91 | 52.76 | 52.83 | 3434 | NASDAQ | ALGN | Wed, Sep 24, 2014 | 53.04 | 53.87 | 52.70 | 53.80 | 3433 | NASDAQ | ALGN | Tue, Sep 23, 2014 | 53.64 | 53.92 | 52.91 | 52.93 | 3432 | NASDAQ | ALGN | Mon, Sep 22, 2014 | 54.60 | 54.97 | 53.88 | 53.94 | 3431 | NASDAQ | ALGN | Fri, Sep 19, 2014 | 54.48 | 54.97 | 54.37 | 54.88 | 3430 | NASDAQ | ALGN | Thu, Sep 18, 2014 | 54.09 | 54.77 | 53.79 | 54.37 | 3429 | NASDAQ | ALGN | Wed, Sep 17, 2014 | 54.25 | 54.44 | 53.50 | 53.90 | 3428 | NASDAQ | ALGN | Tue, Sep 16, 2014 | 53.70 | 54.27 | 53.04 | 54.17 | 3427 | NASDAQ | ALGN | Mon, Sep 15, 2014 | 54.91 | 55.17 | 53.61 | 53.78 | 3426 | NASDAQ | ALGN | Fri, Sep 12, 2014 | 55.33 | 55.71 | 54.76 | 54.90 | 3425 | NASDAQ | ALGN | Thu, Sep 11, 2014 | 55.13 | 55.58 | 55.02 | 55.55 | 3424 | NASDAQ | ALGN | Wed, Sep 10, 2014 | 54.82 | 55.54 | 54.82 | 55.32 | 3423 | NASDAQ | ALGN | Tue, Sep 9, 2014 | 55.57 | 55.91 | 54.80 | 54.90 | 3422 | NASDAQ | ALGN | Mon, Sep 8, 2014 | 55.31 | 55.62 | 55.01 | 55.58 | 3421 | NASDAQ | ALGN | Fri, Sep 5, 2014 | 55.23 | 55.66 | 54.78 | 55.31 | 3420 | NASDAQ | ALGN | Thu, Sep 4, 2014 | 55.50 | 55.81 | 54.92 | 55.31 | 3419 | NASDAQ | ALGN | Wed, Sep 3, 2014 | 55.47 | 55.54 | 54.82 | 55.29 | 3418 | NASDAQ | ALGN | Tue, Sep 2, 2014 | 54.46 | 55.56 | 54.19 | 55.53 | 3417 | NASDAQ | ALGN | Fri, Aug 29, 2014 | 54.85 | 54.85 | 54.13 | 54.46 | 3416 | NASDAQ | ALGN | Thu, Aug 28, 2014 | 55.22 | 55.22 | 54.72 | 54.79 | 3415 | NASDAQ | ALGN | Wed, Aug 27, 2014 | 56.58 | 56.58 | 55.29 | 55.50 | 3414 | NASDAQ | ALGN | Tue, Aug 26, 2014 | 55.49 | 56.89 | 55.01 | 56.61 | 3413 | NASDAQ | ALGN | Mon, Aug 25, 2014 | 54.73 | 55.44 | 54.28 | 55.22 | 3412 | NASDAQ | ALGN | Fri, Aug 22, 2014 | 54.33 | 54.66 | 53.50 | 54.29 | 3411 | NASDAQ | ALGN | Thu, Aug 21, 2014 | 55.10 | 55.14 | 54.25 | 54.49 | 3410 | NASDAQ | ALGN | Wed, Aug 20, 2014 | 54.82 | 55.35 | 54.68 | 55.09 | 3409 | NASDAQ | ALGN | Tue, Aug 19, 2014 | 54.81 | 55.31 | 54.72 | 55.14 | 3408 | NASDAQ | ALGN | Mon, Aug 18, 2014 | 54.90 | 55.02 | 54.59 | 54.95 | 3407 | NASDAQ | ALGN | Fri, Aug 15, 2014 | 55.00 | 55.07 | 53.75 | 54.35 | 3406 | NASDAQ | ALGN | Thu, Aug 14, 2014 | 54.66 | 54.97 | 54.21 | 54.71 | 3405 | NASDAQ | ALGN | Wed, Aug 13, 2014 | 53.99 | 54.83 | 53.81 | 54.75 | 3404 | NASDAQ | ALGN | Tue, Aug 12, 2014 | 53.99 | 54.38 | 53.42 | 53.76 | 3403 | NASDAQ | ALGN | Mon, Aug 11, 2014 | 54.44 | 54.47 | 53.67 | 54.27 | 3402 | NASDAQ | ALGN | Fri, Aug 8, 2014 | 53.73 | 54.28 | 53.10 | 54.11 | 3401 | NASDAQ | ALGN | Thu, Aug 7, 2014 | 54.51 | 54.74 | 53.48 | 53.54 | 3400 | NASDAQ | ALGN | Wed, Aug 6, 2014 | 53.83 | 55.08 | 53.72 | 54.26 | 3399 | NASDAQ | ALGN | Tue, Aug 5, 2014 | 53.72 | 54.54 | 53.59 | 54.14 | 3398 | NASDAQ | ALGN | Mon, Aug 4, 2014 | 53.50 | 54.00 | 53.20 | 53.96 | 3397 | NASDAQ | ALGN | Fri, Aug 1, 2014 | 54.00 | 54.14 | 53.19 | 53.42 | 3396 | NASDAQ | ALGN | Thu, Jul 31, 2014 | 55.11 | 55.54 | 54.21 | 54.21 | 3395 | NASDAQ | ALGN | Wed, Jul 30, 2014 | 55.10 | 55.88 | 54.75 | 55.54 | 3394 | NASDAQ | ALGN | Tue, Jul 29, 2014 | 54.66 | 55.09 | 54.03 | 54.72 | 3393 | NASDAQ | ALGN | Mon, Jul 28, 2014 | 56.36 | 56.58 | 54.68 | 54.72 | 3392 | NASDAQ | ALGN | Fri, Jul 25, 2014 | 55.77 | 56.91 | 55.00 | 56.36 | 3391 | NASDAQ | ALGN | Thu, Jul 24, 2014 | 53.27 | 53.52 | 52.94 | 53.23 | 3390 | NASDAQ | ALGN | Wed, Jul 23, 2014 | 52.79 | 53.24 | 52.51 | 53.12 | 3389 | NASDAQ | ALGN | Tue, Jul 22, 2014 | 52.00 | 53.17 | 51.96 | 52.62 | 3388 | NASDAQ | ALGN | Mon, Jul 21, 2014 | 52.15 | 52.37 | 51.29 | 51.62 | 3387 | NASDAQ | ALGN | Fri, Jul 18, 2014 | 52.30 | 52.61 | 51.86 | 52.57 | 3386 | NASDAQ | ALGN | Thu, Jul 17, 2014 | 53.60 | 54.13 | 52.17 | 52.26 | 3385 | NASDAQ | ALGN | Wed, Jul 16, 2014 | 54.35 | 54.45 | 53.50 | 53.92 | 3384 | NASDAQ | ALGN | Tue, Jul 15, 2014 | 54.27 | 54.44 | 53.06 | 53.91 | 3383 | NASDAQ | ALGN | Mon, Jul 14, 2014 | 54.72 | 54.74 | 54.10 | 54.31 | 3382 | NASDAQ | ALGN | Fri, Jul 11, 2014 | 54.57 | 54.80 | 53.46 | 54.09 | 3381 | NASDAQ | ALGN | Thu, Jul 10, 2014 | 54.23 | 55.16 | 54.01 | 54.46 | 3380 | NASDAQ | ALGN | Wed, Jul 9, 2014 | 55.20 | 55.63 | 54.85 | 55.06 | 3379 | NASDAQ | ALGN | Tue, Jul 8, 2014 | 56.05 | 56.05 | 54.50 | 55.11 | 3378 | NASDAQ | ALGN | Mon, Jul 7, 2014 | 56.97 | 57.23 | 55.99 | 56.12 | 3377 | NASDAQ | ALGN | Thu, Jul 3, 2014 | 56.91 | 57.19 | 56.42 | 57.14 | 3376 | NASDAQ | ALGN | Wed, Jul 2, 2014 | 57.36 | 57.79 | 56.57 | 56.79 | 3375 | NASDAQ | ALGN | Tue, Jul 1, 2014 | 56.33 | 57.63 | 56.17 | 57.36 | 3374 | NASDAQ | ALGN | Mon, Jun 30, 2014 | 56.40 | 56.75 | 55.76 | 56.04 | 3373 | NASDAQ | ALGN | Fri, Jun 27, 2014 | 54.95 | 56.63 | 54.78 | 56.32 | 3372 | NASDAQ | ALGN | Thu, Jun 26, 2014 | 55.18 | 55.18 | 54.08 | 55.13 | 3371 | NASDAQ | ALGN | Wed, Jun 25, 2014 | 52.43 | 54.13 | 52.20 | 54.05 | 3370 | NASDAQ | ALGN | Tue, Jun 24, 2014 | 52.15 | 53.11 | 52.15 | 52.74 | 3369 | NASDAQ | ALGN | Mon, Jun 23, 2014 | 52.25 | 52.74 | 52.06 | 52.51 | 3368 | NASDAQ | ALGN | Fri, Jun 20, 2014 | 52.52 | 52.65 | 52.08 | 52.39 | 3367 | NASDAQ | ALGN | Thu, Jun 19, 2014 | 52.03 | 52.18 | 51.71 | 52.16 | 3366 | NASDAQ | ALGN | Wed, Jun 18, 2014 | 51.01 | 51.92 | 50.80 | 51.83 | 3365 | NASDAQ | ALGN | Tue, Jun 17, 2014 | 50.75 | 51.99 | 50.56 | 51.06 | 3364 | NASDAQ | ALGN | Mon, Jun 16, 2014 | 50.69 | 51.19 | 50.37 | 50.95 | 3363 | NASDAQ | ALGN | Fri, Jun 13, 2014 | 51.08 | 51.08 | 50.31 | 50.78 | 3362 | NASDAQ | ALGN | Thu, Jun 12, 2014 | 51.65 | 51.86 | 50.67 | 50.81 | 3361 | NASDAQ | ALGN | Wed, Jun 11, 2014 | 51.85 | 52.71 | 51.55 | 51.60 | 3360 | NASDAQ | ALGN | Tue, Jun 10, 2014 | 53.13 | 53.47 | 52.07 | 52.47 | 3359 | NASDAQ | ALGN | Mon, Jun 9, 2014 | 53.19 | 53.77 | 52.83 | 53.15 | 3358 | NASDAQ | ALGN | Fri, Jun 6, 2014 | 53.88 | 53.88 | 52.94 | 53.37 | 3357 | NASDAQ | ALGN | Thu, Jun 5, 2014 | 53.46 | 54.10 | 52.67 | 53.56 | 3356 | NASDAQ | ALGN | Wed, Jun 4, 2014 | 53.64 | 53.64 | 52.89 | 53.37 | 3355 | NASDAQ | ALGN | Tue, Jun 3, 2014 | 54.25 | 55.44 | 53.87 | 53.89 | 3354 | NASDAQ | ALGN | Mon, Jun 2, 2014 | 54.75 | 55.24 | 54.23 | 55.01 | 3353 | NASDAQ | ALGN | Fri, May 30, 2014 | 54.99 | 55.33 | 53.77 | 54.61 | 3352 | NASDAQ | ALGN | Thu, May 29, 2014 | 53.60 | 55.42 | 52.85 | 55.12 | 3351 | NASDAQ | ALGN | Wed, May 28, 2014 | 53.50 | 54.14 | 52.55 | 53.18 | 3350 | NASDAQ | ALGN | Tue, May 27, 2014 | 54.72 | 54.99 | 53.55 | 53.69 | 3349 | NASDAQ | ALGN | Fri, May 23, 2014 | 52.71 | 54.35 | 52.32 | 54.13 | 3348 | NASDAQ | ALGN | Thu, May 22, 2014 | 52.55 | 53.25 | 51.99 | 52.72 | 3347 | NASDAQ | ALGN | Wed, May 21, 2014 | 50.14 | 52.99 | 49.75 | 52.71 | 3346 | NASDAQ | ALGN | Tue, May 20, 2014 | 50.63 | 50.63 | 49.52 | 50.04 | 3345 | NASDAQ | ALGN | Mon, May 19, 2014 | 50.07 | 51.16 | 49.80 | 50.79 | 3344 | NASDAQ | ALGN | Fri, May 16, 2014 | 49.73 | 50.36 | 49.07 | 50.35 | 3343 | NASDAQ | ALGN | Thu, May 15, 2014 | 49.65 | 50.00 | 48.88 | 49.69 | 3342 | NASDAQ | ALGN | Wed, May 14, 2014 | 50.71 | 51.16 | 49.93 | 50.09 | 3341 | NASDAQ | ALGN | Tue, May 13, 2014 | 51.08 | 51.65 | 50.73 | 51.01 | 3340 | NASDAQ | ALGN | Mon, May 12, 2014 | 49.71 | 51.52 | 49.22 | 51.30 | 3339 | NASDAQ | ALGN | Fri, May 9, 2014 | 47.87 | 49.46 | 47.52 | 49.45 | 3338 | NASDAQ | ALGN | Thu, May 8, 2014 | 48.18 | 49.53 | 47.22 | 48.04 | 3337 | NASDAQ | ALGN | Wed, May 7, 2014 | 49.05 | 49.05 | 47.22 | 48.19 | 3336 | NASDAQ | ALGN | Tue, May 6, 2014 | 49.99 | 50.95 | 48.91 | 49.03 | 3335 | NASDAQ | ALGN | Mon, May 5, 2014 | 49.91 | 50.59 | 49.22 | 50.33 | 3334 | NASDAQ | ALGN | Fri, May 2, 2014 | 51.15 | 51.59 | 50.35 | 50.43 | 3333 | NASDAQ | ALGN | Thu, May 1, 2014 | 50.35 | 51.83 | 49.61 | 51.00 | 3332 | NASDAQ | ALGN | Wed, Apr 30, 2014 | 49.81 | 50.77 | 49.48 | 50.39 | 3331 | NASDAQ | ALGN | Tue, Apr 29, 2014 | 49.56 | 50.47 | 49.19 | 50.06 | 3330 | NASDAQ | ALGN | Mon, Apr 28, 2014 | 50.00 | 50.75 | 48.13 | 49.17 | 3329 | NASDAQ | ALGN | Fri, Apr 25, 2014 | 50.41 | 50.74 | 49.79 | 50.00 | 3328 | NASDAQ | ALGN | Thu, Apr 24, 2014 | 52.25 | 52.80 | 48.56 | 50.80 | 3327 | NASDAQ | ALGN | Wed, Apr 23, 2014 | 51.91 | 52.94 | 51.91 | 52.45 | 3326 | NASDAQ | ALGN | Tue, Apr 22, 2014 | 52.11 | 53.38 | 51.78 | 52.06 | 3325 | NASDAQ | ALGN | Mon, Apr 21, 2014 | 53.48 | 53.80 | 52.12 | 52.25 | 3324 | NASDAQ | ALGN | Thu, Apr 17, 2014 | 51.43 | 53.61 | 50.81 | 53.40 | 3323 | NASDAQ | ALGN | Wed, Apr 16, 2014 | 51.84 | 52.67 | 51.13 | 51.68 | 3322 | NASDAQ | ALGN | Tue, Apr 15, 2014 | 49.46 | 51.12 | 49.01 | 51.05 | 3321 | NASDAQ | ALGN | Mon, Apr 14, 2014 | 49.69 | 50.24 | 48.46 | 49.15 | 3320 | NASDAQ | ALGN | Fri, Apr 11, 2014 | 50.03 | 50.44 | 48.75 | 49.39 | 3319 | NASDAQ | ALGN | Thu, Apr 10, 2014 | 53.97 | 54.15 | 50.39 | 50.61 | 3318 | NASDAQ | ALGN | Wed, Apr 9, 2014 | 52.47 | 54.25 | 52.26 | 54.16 | 3317 | NASDAQ | ALGN | Tue, Apr 8, 2014 | 52.97 | 53.72 | 52.04 | 52.35 | 3316 | NASDAQ | ALGN | Mon, Apr 7, 2014 | 55.40 | 55.59 | 52.50 | 52.94 | 3315 | NASDAQ | ALGN | Fri, Apr 4, 2014 | 57.06 | 57.50 | 53.97 | 54.81 | 3314 | NASDAQ | ALGN | Thu, Apr 3, 2014 | 54.18 | 54.30 | 52.72 | 53.59 | 3313 | NASDAQ | ALGN | Wed, Apr 2, 2014 | 53.66 | 54.75 | 52.18 | 54.24 | 3312 | NASDAQ | ALGN | Tue, Apr 1, 2014 | 51.88 | 53.73 | 51.46 | 53.59 | 3311 | NASDAQ | ALGN | Mon, Mar 31, 2014 | 51.23 | 52.08 | 50.37 | 51.79 | 3310 | NASDAQ | ALGN | Fri, Mar 28, 2014 | 51.57 | 52.22 | 50.61 | 50.73 | 3309 | NASDAQ | ALGN | Thu, Mar 27, 2014 | 52.12 | 53.66 | 50.90 | 51.43 | 3308 | NASDAQ | ALGN | Wed, Mar 26, 2014 | 53.39 | 54.05 | 52.03 | 52.07 | 3307 | NASDAQ | ALGN | Tue, Mar 25, 2014 | 53.16 | 54.30 | 52.35 | 52.91 | 3306 | NASDAQ | ALGN | Mon, Mar 24, 2014 | 53.79 | 54.00 | 52.07 | 52.75 | 3305 | NASDAQ | ALGN | Fri, Mar 21, 2014 | 54.84 | 54.97 | 52.96 | 53.92 | 3304 | NASDAQ | ALGN | Thu, Mar 20, 2014 | 54.08 | 54.79 | 53.39 | 54.72 | 3303 | NASDAQ | ALGN | Wed, Mar 19, 2014 | 55.13 | 55.31 | 53.61 | 54.16 | 3302 | NASDAQ | ALGN | Tue, Mar 18, 2014 | 53.58 | 55.04 | 53.51 | 54.78 | 3301 | NASDAQ | ALGN | Mon, Mar 17, 2014 | 53.00 | 53.78 | 52.89 | 53.45 | 3300 | NASDAQ | ALGN | Fri, Mar 14, 2014 | 52.25 | 53.12 | 51.77 | 52.74 | 3299 | NASDAQ | ALGN | Thu, Mar 13, 2014 | 54.67 | 54.74 | 51.77 | 52.38 | 3298 | NASDAQ | ALGN | Wed, Mar 12, 2014 | 53.69 | 54.62 | 53.09 | 54.32 | 3297 | NASDAQ | ALGN | Tue, Mar 11, 2014 | 55.62 | 55.90 | 54.02 | 54.28 | 3296 | NASDAQ | ALGN | Mon, Mar 10, 2014 | 55.25 | 55.96 | 54.88 | 55.60 | 3295 | NASDAQ | ALGN | Fri, Mar 7, 2014 | 55.31 | 55.32 | 53.91 | 55.28 | 3294 | NASDAQ | ALGN | Thu, Mar 6, 2014 | 54.28 | 55.23 | 54.27 | 54.75 | 3293 | NASDAQ | ALGN | Wed, Mar 5, 2014 | 55.16 | 55.64 | 53.99 | 54.07 | 3292 | NASDAQ | ALGN | Tue, Mar 4, 2014 | 53.04 | 55.58 | 52.94 | 55.13 | 3291 | NASDAQ | ALGN | Mon, Mar 3, 2014 | 53.29 | 53.29 | 51.76 | 52.30 | 3290 | NASDAQ | ALGN | Fri, Feb 28, 2014 | 53.02 | 53.49 | 51.73 | 52.33 | 3289 | NASDAQ | ALGN | Thu, Feb 27, 2014 | 52.74 | 53.40 | 52.74 | 52.93 | 3288 | NASDAQ | ALGN | Wed, Feb 26, 2014 | 53.61 | 54.15 | 52.79 | 53.15 | 3287 | NASDAQ | ALGN | Tue, Feb 25, 2014 | 54.10 | 54.35 | 53.25 | 53.46 | 3286 | NASDAQ | ALGN | Mon, Feb 24, 2014 | 53.87 | 54.58 | 53.14 | 54.31 | 3285 | NASDAQ | ALGN | Fri, Feb 21, 2014 | 54.00 | 54.09 | 52.90 | 52.98 | 3284 | NASDAQ | ALGN | Thu, Feb 20, 2014 | 53.65 | 54.04 | 52.09 | 53.52 | 3283 | NASDAQ | ALGN | Wed, Feb 19, 2014 | 54.70 | 55.13 | 53.56 | 53.80 | 3282 | NASDAQ | ALGN | Tue, Feb 18, 2014 | 54.49 | 55.66 | 54.49 | 55.32 | 3281 | NASDAQ | ALGN | Fri, Feb 14, 2014 | 54.60 | 55.21 | 54.35 | 54.58 | 3280 | NASDAQ | ALGN | Thu, Feb 13, 2014 | 54.38 | 55.17 | 54.05 | 54.66 | 3279 | NASDAQ | ALGN | Wed, Feb 12, 2014 | 55.10 | 55.64 | 54.60 | 54.91 | 3278 | NASDAQ | ALGN | Tue, Feb 11, 2014 | 55.50 | 56.10 | 54.71 | 55.19 | 3277 | NASDAQ | ALGN | Mon, Feb 10, 2014 | 55.10 | 55.59 | 54.57 | 54.99 | 3276 | NASDAQ | ALGN | Fri, Feb 7, 2014 | 54.36 | 55.07 | 54.13 | 55.01 | 3275 | NASDAQ | ALGN | Thu, Feb 6, 2014 | 54.99 | 55.64 | 53.89 | 54.01 | 3274 | NASDAQ | ALGN | Wed, Feb 5, 2014 | 54.74 | 55.51 | 54.04 | 54.67 | 3273 | NASDAQ | ALGN | Tue, Feb 4, 2014 | 55.02 | 55.49 | 54.11 | 55.23 | 3272 | NASDAQ | ALGN | Mon, Feb 3, 2014 | 59.08 | 59.72 | 54.47 | 54.96 | 3271 | NASDAQ | ALGN | Fri, Jan 31, 2014 | 57.28 | 59.74 | 55.75 | 59.42 | 3270 | NASDAQ | ALGN | Thu, Jan 30, 2014 | 58.74 | 59.81 | 58.16 | 58.49 | 3269 | NASDAQ | ALGN | Wed, Jan 29, 2014 | 57.18 | 58.14 | 56.14 | 57.74 | 3268 | NASDAQ | ALGN | Tue, Jan 28, 2014 | 55.65 | 57.75 | 55.54 | 57.47 | 3267 | NASDAQ | ALGN | Mon, Jan 27, 2014 | 58.87 | 58.88 | 53.76 | 55.43 | 3266 | NASDAQ | ALGN | Fri, Jan 24, 2014 | 62.85 | 63.10 | 58.13 | 58.88 | 3265 | NASDAQ | ALGN | Thu, Jan 23, 2014 | 63.12 | 63.42 | 62.21 | 63.40 | 3264 | NASDAQ | ALGN | Wed, Jan 22, 2014 | 62.41 | 63.58 | 61.97 | 63.20 | 3263 | NASDAQ | ALGN | Tue, Jan 21, 2014 | 65.00 | 65.10 | 62.28 | 62.67 | 3262 | NASDAQ | ALGN | Fri, Jan 17, 2014 | 63.50 | 64.93 | 62.96 | 63.95 | 3261 | NASDAQ | ALGN | Thu, Jan 16, 2014 | 62.02 | 63.48 | 61.78 | 62.12 | 3260 | NASDAQ | ALGN | Wed, Jan 15, 2014 | 60.64 | 62.43 | 60.59 | 62.23 | 3259 | NASDAQ | ALGN | Tue, Jan 14, 2014 | 58.67 | 60.42 | 57.03 | 60.40 | 3258 | NASDAQ | ALGN | Mon, Jan 13, 2014 | 61.18 | 61.19 | 58.17 | 58.69 | 3257 | NASDAQ | ALGN | Fri, Jan 10, 2014 | 60.43 | 61.44 | 59.87 | 60.71 | 3256 | NASDAQ | ALGN | Thu, Jan 9, 2014 | 60.72 | 61.08 | 59.45 | 60.34 | 3255 | NASDAQ | ALGN | Wed, Jan 8, 2014 | 61.41 | 61.75 | 60.51 | 60.73 | 3254 | NASDAQ | ALGN | Tue, Jan 7, 2014 | 60.67 | 62.44 | 60.50 | 61.36 | 3253 | NASDAQ | ALGN | Mon, Jan 6, 2014 | 57.65 | 61.09 | 57.50 | 59.90 | 3252 | NASDAQ | ALGN | Fri, Jan 3, 2014 | 57.02 | 57.53 | 56.62 | 57.17 | 3251 | NASDAQ | ALGN | Thu, Jan 2, 2014 | 57.06 | 57.37 | 56.43 | 56.96 | 3250 | NASDAQ | ALGN | Tue, Dec 31, 2013 | 56.99 | 57.50 | 56.70 | 57.14 | 3249 | NASDAQ | ALGN | Mon, Dec 30, 2013 | 58.08 | 58.37 | 56.80 | 57.05 | 3248 | NASDAQ | ALGN | Fri, Dec 27, 2013 | 57.99 | 57.99 | 56.71 | 57.20 | 3247 | NASDAQ | ALGN | Thu, Dec 26, 2013 | 58.34 | 58.50 | 57.42 | 57.77 | 3246 | NASDAQ | ALGN | Tue, Dec 24, 2013 | 58.25 | 58.25 | 57.39 | 57.96 | 3245 | NASDAQ | ALGN | Mon, Dec 23, 2013 | 57.21 | 58.09 | 57.07 | 58.04 | 3244 | NASDAQ | ALGN | Fri, Dec 20, 2013 | 56.68 | 57.21 | 56.26 | 57.03 | 3243 | NASDAQ | ALGN | Thu, Dec 19, 2013 | 57.22 | 57.52 | 56.07 | 56.47 | 3242 | NASDAQ | ALGN | Wed, Dec 18, 2013 | 56.14 | 57.21 | 55.75 | 57.16 | 3241 | NASDAQ | ALGN | Tue, Dec 17, 2013 | 55.70 | 56.24 | 55.11 | 56.00 | 3240 | NASDAQ | ALGN | Mon, Dec 16, 2013 | 54.59 | 55.61 | 54.45 | 55.58 | 3239 | NASDAQ | ALGN | Fri, Dec 13, 2013 | 54.37 | 54.85 | 54.02 | 54.20 | 3238 | NASDAQ | ALGN | Thu, Dec 12, 2013 | 53.48 | 54.43 | 52.74 | 54.12 | 3237 | NASDAQ | ALGN | Wed, Dec 11, 2013 | 55.13 | 55.38 | 53.50 | 53.68 | 3236 | NASDAQ | ALGN | Tue, Dec 10, 2013 | 55.51 | 55.70 | 54.74 | 54.87 | 3235 | NASDAQ | ALGN | Mon, Dec 9, 2013 | 55.74 | 56.17 | 55.13 | 55.75 | 3234 | NASDAQ | ALGN | Fri, Dec 6, 2013 | 54.91 | 55.79 | 54.16 | 55.46 | 3233 | NASDAQ | ALGN | Thu, Dec 5, 2013 | 54.54 | 54.57 | 53.83 | 54.53 | 3232 | NASDAQ | ALGN | Wed, Dec 4, 2013 | 54.75 | 55.25 | 53.94 | 54.65 | 3231 | NASDAQ | ALGN | Tue, Dec 3, 2013 | 54.89 | 55.39 | 54.64 | 55.17 | 3230 | NASDAQ | ALGN | Mon, Dec 2, 2013 | 54.80 | 55.50 | 54.05 | 55.11 | 3229 | NASDAQ | ALGN | Fri, Nov 29, 2013 | 54.89 | 55.33 | 54.42 | 54.64 | 3228 | NASDAQ | ALGN | Wed, Nov 27, 2013 | 53.88 | 54.92 | 53.63 | 54.76 | 3227 | NASDAQ | ALGN | Tue, Nov 26, 2013 | 53.67 | 54.13 | 53.10 | 53.93 | 3226 | NASDAQ | ALGN | Mon, Nov 25, 2013 | 54.20 | 54.88 | 52.87 | 53.58 | 3225 | NASDAQ | ALGN | Fri, Nov 22, 2013 | 54.01 | 54.83 | 53.80 | 54.15 | 3224 | NASDAQ | ALGN | Thu, Nov 21, 2013 | 52.78 | 53.93 | 52.68 | 53.89 | 3223 | NASDAQ | ALGN | Wed, Nov 20, 2013 | 52.78 | 53.17 | 52.45 | 52.69 | 3222 | NASDAQ | ALGN | Tue, Nov 19, 2013 | 53.87 | 53.98 | 51.82 | 52.44 | 3221 | NASDAQ | ALGN | Mon, Nov 18, 2013 | 55.82 | 55.99 | 53.64 | 54.00 | 3220 | NASDAQ | ALGN | Fri, Nov 15, 2013 | 54.91 | 55.53 | 54.90 | 55.41 | 3219 | NASDAQ | ALGN | Thu, Nov 14, 2013 | 55.63 | 55.95 | 54.05 | 54.68 | 3218 | NASDAQ | ALGN | Wed, Nov 13, 2013 | 58.00 | 58.89 | 57.66 | 58.38 | 3217 | NASDAQ | ALGN | Tue, Nov 12, 2013 | 58.52 | 58.70 | 57.81 | 58.50 | 3216 | NASDAQ | ALGN | Mon, Nov 11, 2013 | 58.41 | 59.80 | 57.77 | 58.59 | 3215 | NASDAQ | ALGN | Fri, Nov 8, 2013 | 56.71 | 58.44 | 56.70 | 58.24 | 3214 | NASDAQ | ALGN | Thu, Nov 7, 2013 | 57.22 | 57.91 | 56.45 | 56.63 | 3213 | NASDAQ | ALGN | Wed, Nov 6, 2013 | 57.19 | 57.75 | 56.31 | 57.09 | 3212 | NASDAQ | ALGN | Tue, Nov 5, 2013 | 57.78 | 58.28 | 56.20 | 56.65 | 3211 | NASDAQ | ALGN | Mon, Nov 4, 2013 | 57.17 | 58.95 | 56.93 | 58.03 | 3210 | NASDAQ | ALGN | Fri, Nov 1, 2013 | 56.96 | 57.36 | 56.24 | 56.75 | 3209 | NASDAQ | ALGN | Thu, Oct 31, 2013 | 56.97 | 57.59 | 56.31 | 57.06 | 3208 | NASDAQ | ALGN | Wed, Oct 30, 2013 | 57.45 | 57.71 | 56.27 | 56.78 | 3207 | NASDAQ | ALGN | Tue, Oct 29, 2013 | 56.29 | 57.27 | 56.26 | 57.24 | 3206 | NASDAQ | ALGN | Mon, Oct 28, 2013 | 56.14 | 56.57 | 55.91 | 56.05 | 3205 | NASDAQ | ALGN | Fri, Oct 25, 2013 | 56.79 | 56.79 | 55.80 | 56.00 | 3204 | NASDAQ | ALGN | Thu, Oct 24, 2013 | 57.43 | 57.50 | 56.39 | 56.57 | 3203 | NASDAQ | ALGN | Wed, Oct 23, 2013 | 56.97 | 57.90 | 56.10 | 57.51 | 3202 | NASDAQ | ALGN | Tue, Oct 22, 2013 | 58.20 | 58.51 | 56.58 | 56.67 | 3201 | NASDAQ | ALGN | Mon, Oct 21, 2013 | 58.50 | 59.43 | 57.93 | 58.25 | 3200 | NASDAQ | ALGN | Fri, Oct 18, 2013 | 53.20 | 60.00 | 53.15 | 57.98 | 3199 | NASDAQ | ALGN | Thu, Oct 17, 2013 | 43.58 | 46.34 | 43.01 | 45.93 | 3198 | NASDAQ | ALGN | Wed, Oct 16, 2013 | 43.48 | 43.74 | 43.07 | 43.72 | 3197 | NASDAQ | ALGN | Tue, Oct 15, 2013 | 43.47 | 43.61 | 42.85 | 43.01 | 3196 | NASDAQ | ALGN | Mon, Oct 14, 2013 | 43.32 | 43.79 | 43.08 | 43.46 | 3195 | NASDAQ | ALGN | Fri, Oct 11, 2013 | 42.27 | 43.51 | 42.18 | 43.35 | 3194 | NASDAQ | ALGN | Thu, Oct 10, 2013 | 44.15 | 44.67 | 41.83 | 42.52 | 3193 | NASDAQ | ALGN | Wed, Oct 9, 2013 | 44.24 | 44.37 | 43.50 | 44.02 | 3192 | NASDAQ | ALGN | Tue, Oct 8, 2013 | 44.89 | 45.38 | 43.99 | 44.03 | 3191 | NASDAQ | ALGN | Mon, Oct 7, 2013 | 45.44 | 46.13 | 44.96 | 45.02 | 3190 | NASDAQ | ALGN | Fri, Oct 4, 2013 | 46.76 | 47.02 | 45.60 | 45.80 | 3189 | NASDAQ | ALGN | Thu, Oct 3, 2013 | 48.85 | 49.21 | 47.33 | 47.87 | 3188 | NASDAQ | ALGN | Wed, Oct 2, 2013 | 49.23 | 49.23 | 48.58 | 48.87 | 3187 | NASDAQ | ALGN | Tue, Oct 1, 2013 | 48.00 | 49.26 | 47.81 | 49.26 | 3186 | NASDAQ | ALGN | Mon, Sep 30, 2013 | 47.34 | 48.44 | 47.05 | 48.10 | 3185 | NASDAQ | ALGN | Fri, Sep 27, 2013 | 47.63 | 48.01 | 47.30 | 47.78 | 3184 | NASDAQ | ALGN | Thu, Sep 26, 2013 | 47.52 | 48.09 | 47.13 | 48.08 | 3183 | NASDAQ | ALGN | Wed, Sep 25, 2013 | 47.47 | 47.96 | 47.14 | 47.42 | 3182 | NASDAQ | ALGN | Tue, Sep 24, 2013 | 47.37 | 48.07 | 47.13 | 47.48 | 3181 | NASDAQ | ALGN | Mon, Sep 23, 2013 | 47.45 | 47.70 | 47.20 | 47.45 | 3180 | NASDAQ | ALGN | Fri, Sep 20, 2013 | 47.72 | 48.08 | 47.24 | 47.59 | 3179 | NASDAQ | ALGN | Thu, Sep 19, 2013 | 48.29 | 49.08 | 47.64 | 47.67 | 3178 | NASDAQ | ALGN | Wed, Sep 18, 2013 | 48.06 | 48.51 | 46.79 | 48.25 | 3177 | NASDAQ | ALGN | Tue, Sep 17, 2013 | 46.52 | 48.13 | 46.41 | 47.96 | 3176 | NASDAQ | ALGN | Mon, Sep 16, 2013 | 47.35 | 47.58 | 46.22 | 46.25 | 3175 | NASDAQ | ALGN | Fri, Sep 13, 2013 | 47.37 | 47.59 | 46.23 | 46.81 | 3174 | NASDAQ | ALGN | Thu, Sep 12, 2013 | 47.38 | 47.43 | 46.94 | 47.12 | 3173 | NASDAQ | ALGN | Wed, Sep 11, 2013 | 47.01 | 47.63 | 46.59 | 47.51 | 3172 | NASDAQ | ALGN | Tue, Sep 10, 2013 | 47.00 | 47.05 | 46.17 | 47.03 | 3171 | NASDAQ | ALGN | Mon, Sep 9, 2013 | 45.03 | 46.84 | 44.98 | 46.71 | 3170 | NASDAQ | ALGN | Fri, Sep 6, 2013 | 45.14 | 45.49 | 44.01 | 44.85 | 3169 | NASDAQ | ALGN | Thu, Sep 5, 2013 | 44.64 | 45.19 | 44.34 | 44.83 | 3168 | NASDAQ | ALGN | Wed, Sep 4, 2013 | 44.37 | 44.72 | 44.00 | 44.72 | 3167 | NASDAQ | ALGN | Tue, Sep 3, 2013 | 44.33 | 44.89 | 43.67 | 44.37 | 3166 | NASDAQ | ALGN | Fri, Aug 30, 2013 | 43.66 | 44.15 | 43.37 | 43.55 | 3165 | NASDAQ | ALGN | Thu, Aug 29, 2013 | 43.00 | 44.13 | 43.00 | 43.79 | 3164 | NASDAQ | ALGN | Wed, Aug 28, 2013 | 43.52 | 43.88 | 43.02 | 43.13 | 3163 | NASDAQ | ALGN | Tue, Aug 27, 2013 | 43.73 | 44.27 | 43.50 | 43.62 | 3162 | NASDAQ | ALGN | Mon, Aug 26, 2013 | 44.47 | 45.00 | 44.00 | 44.45 | 3161 | NASDAQ | ALGN | Fri, Aug 23, 2013 | 44.37 | 44.56 | 43.93 | 44.51 | 3160 | NASDAQ | ALGN | Thu, Aug 22, 2013 | 43.70 | 44.37 | 43.60 | 44.36 | 3159 | NASDAQ | ALGN | Wed, Aug 21, 2013 | 43.42 | 44.06 | 43.17 | 43.55 | 3158 | NASDAQ | ALGN | Tue, Aug 20, 2013 | 43.05 | 43.64 | 42.84 | 43.61 | 3157 | NASDAQ | ALGN | Mon, Aug 19, 2013 | 42.57 | 43.34 | 42.34 | 42.86 | 3156 | NASDAQ | ALGN | Fri, Aug 16, 2013 | 42.93 | 43.48 | 42.56 | 42.96 | 3155 | NASDAQ | ALGN | Thu, Aug 15, 2013 | 43.79 | 43.79 | 43.00 | 43.16 | 3154 | NASDAQ | ALGN | Wed, Aug 14, 2013 | 44.69 | 44.87 | 44.22 | 44.38 | 3153 | NASDAQ | ALGN | Tue, Aug 13, 2013 | 44.32 | 44.90 | 44.02 | 44.77 | 3152 | NASDAQ | ALGN | Mon, Aug 12, 2013 | 43.59 | 44.64 | 43.45 | 44.44 | 3151 | NASDAQ | ALGN | Fri, Aug 9, 2013 | 43.95 | 44.12 | 43.50 | 43.90 | 3150 | NASDAQ | ALGN | Thu, Aug 8, 2013 | 44.11 | 44.35 | 43.76 | 44.08 | 3149 | NASDAQ | ALGN | Wed, Aug 7, 2013 | 44.27 | 44.43 | 43.63 | 43.83 | 3148 | NASDAQ | ALGN | Tue, Aug 6, 2013 | 44.13 | 44.85 | 44.12 | 44.27 | 3147 | NASDAQ | ALGN | Mon, Aug 5, 2013 | 43.50 | 44.48 | 43.46 | 44.42 | 3146 | NASDAQ | ALGN | Fri, Aug 2, 2013 | 43.49 | 44.48 | 43.44 | 43.61 | 3145 | NASDAQ | ALGN | Thu, Aug 1, 2013 | 43.23 | 44.04 | 42.81 | 43.99 | 3144 | NASDAQ | ALGN | Wed, Jul 31, 2013 | 42.54 | 43.37 | 42.35 | 43.04 | 3143 | NASDAQ | ALGN | Tue, Jul 30, 2013 | 42.64 | 42.88 | 42.05 | 42.45 | 3142 | NASDAQ | ALGN | Mon, Jul 29, 2013 | 42.70 | 42.87 | 42.19 | 42.34 | 3141 | NASDAQ | ALGN | Fri, Jul 26, 2013 | 43.47 | 43.80 | 42.39 | 42.75 | 3140 | NASDAQ | ALGN | Thu, Jul 25, 2013 | 43.35 | 43.88 | 43.17 | 43.88 | 3139 | NASDAQ | ALGN | Wed, Jul 24, 2013 | 44.00 | 44.15 | 43.31 | 43.43 | 3138 | NASDAQ | ALGN | Tue, Jul 23, 2013 | 43.67 | 44.31 | 43.27 | 44.00 | 3137 | NASDAQ | ALGN | Mon, Jul 22, 2013 | 43.06 | 44.25 | 42.39 | 44.00 | 3136 | NASDAQ | ALGN | Fri, Jul 19, 2013 | 43.79 | 44.43 | 41.25 | 42.95 | 3135 | NASDAQ | ALGN | Thu, Jul 18, 2013 | 39.15 | 40.50 | 38.55 | 39.65 | 3134 | NASDAQ | ALGN | Wed, Jul 17, 2013 | 38.40 | 38.98 | 38.13 | 38.92 | 3133 | NASDAQ | ALGN | Tue, Jul 16, 2013 | 38.64 | 38.79 | 37.97 | 38.19 | 3132 | NASDAQ | ALGN | Mon, Jul 15, 2013 | 39.11 | 39.30 | 38.69 | 38.70 | 3131 | NASDAQ | ALGN | Fri, Jul 12, 2013 | 39.22 | 39.68 | 38.99 | 39.20 | 3130 | NASDAQ | ALGN | Thu, Jul 11, 2013 | 39.79 | 39.81 | 39.03 | 39.40 | 3129 | NASDAQ | ALGN | Wed, Jul 10, 2013 | 39.06 | 39.61 | 38.24 | 39.19 | 3128 | NASDAQ | ALGN | Tue, Jul 9, 2013 | 38.58 | 38.99 | 38.01 | 38.88 | 3127 | NASDAQ | ALGN | Mon, Jul 8, 2013 | 38.50 | 38.74 | 38.08 | 38.42 | 3126 | NASDAQ | ALGN | Fri, Jul 5, 2013 | 38.36 | 38.39 | 37.83 | 38.39 | 3125 | NASDAQ | ALGN | Wed, Jul 3, 2013 | 37.02 | 38.00 | 36.92 | 37.78 | 3124 | NASDAQ | ALGN | Tue, Jul 2, 2013 | 37.99 | 38.19 | 37.04 | 37.30 | 3123 | NASDAQ | ALGN | Mon, Jul 1, 2013 | 37.01 | 38.50 | 37.01 | 37.79 | 3122 | NASDAQ | ALGN | Fri, Jun 28, 2013 | 36.71 | 37.38 | 36.14 | 37.04 | 3121 | NASDAQ | ALGN | Thu, Jun 27, 2013 | 36.01 | 36.96 | 35.74 | 36.69 | 3120 | NASDAQ | ALGN | Wed, Jun 26, 2013 | 35.65 | 36.18 | 35.10 | 35.78 | 3119 | NASDAQ | ALGN | Tue, Jun 25, 2013 | 36.14 | 36.24 | 34.92 | 35.41 | 3118 | NASDAQ | ALGN | Mon, Jun 24, 2013 | 35.29 | 36.22 | 34.88 | 35.77 | 3117 | NASDAQ | ALGN | Fri, Jun 21, 2013 | 35.57 | 36.04 | 35.17 | 35.84 | 3116 | NASDAQ | ALGN | Thu, Jun 20, 2013 | 35.51 | 36.40 | 35.23 | 35.48 | 3115 | NASDAQ | ALGN | Wed, Jun 19, 2013 | 36.10 | 36.58 | 35.94 | 36.10 | 3114 | NASDAQ | ALGN | Tue, Jun 18, 2013 | 35.88 | 36.38 | 35.67 | 36.25 | 3113 | NASDAQ | ALGN | Mon, Jun 17, 2013 | 35.49 | 36.17 | 35.49 | 35.87 | 3112 | NASDAQ | ALGN | Fri, Jun 14, 2013 | 34.87 | 35.26 | 34.08 | 35.02 | 3111 | NASDAQ | ALGN | Thu, Jun 13, 2013 | 34.28 | 34.68 | 33.84 | 34.67 | 3110 | NASDAQ | ALGN | Wed, Jun 12, 2013 | 35.13 | 35.13 | 34.11 | 34.22 | 3109 | NASDAQ | ALGN | Tue, Jun 11, 2013 | 34.83 | 35.66 | 34.35 | 34.77 | 3108 | NASDAQ | ALGN | Mon, Jun 10, 2013 | 35.52 | 35.66 | 35.13 | 35.29 | 3107 | NASDAQ | ALGN | Fri, Jun 7, 2013 | 35.54 | 35.78 | 35.09 | 35.45 | 3106 | NASDAQ | ALGN | Thu, Jun 6, 2013 | 35.37 | 35.41 | 34.71 | 35.19 | 3105 | NASDAQ | ALGN | Wed, Jun 5, 2013 | 35.75 | 36.39 | 35.21 | 35.38 | 3104 | NASDAQ | ALGN | Tue, Jun 4, 2013 | 37.15 | 37.35 | 35.68 | 35.88 | 3103 | NASDAQ | ALGN | Mon, Jun 3, 2013 | 36.03 | 37.16 | 35.76 | 36.85 | 3102 | NASDAQ | ALGN | Fri, May 31, 2013 | 36.03 | 36.49 | 35.74 | 35.75 | 3101 | NASDAQ | ALGN | Thu, May 30, 2013 | 36.05 | 36.65 | 35.71 | 36.18 | 3100 | NASDAQ | ALGN | Wed, May 29, 2013 | 36.09 | 36.33 | 35.63 | 35.97 | 3099 | NASDAQ | ALGN | Tue, May 28, 2013 | 36.27 | 37.15 | 35.94 | 36.45 | 3098 | NASDAQ | ALGN | Fri, May 24, 2013 | 36.62 | 36.99 | 36.15 | 36.70 | 3097 | NASDAQ | ALGN | Thu, May 23, 2013 | 36.82 | 37.20 | 36.29 | 36.98 | 3096 | NASDAQ | ALGN | Wed, May 22, 2013 | 38.15 | 38.74 | 37.17 | 37.30 | 3095 | NASDAQ | ALGN | Tue, May 21, 2013 | 37.68 | 38.51 | 37.17 | 38.16 | 3094 | NASDAQ | ALGN | Mon, May 20, 2013 | 37.42 | 38.06 | 37.38 | 37.80 | 3093 | NASDAQ | ALGN | Fri, May 17, 2013 | 36.96 | 37.88 | 36.96 | 37.59 | 3092 | NASDAQ | ALGN | Thu, May 16, 2013 | 36.05 | 37.33 | 35.81 | 36.85 | 3091 | NASDAQ | ALGN | Wed, May 15, 2013 | 36.28 | 36.41 | 36.01 | 36.22 | 3090 | NASDAQ | ALGN | Tue, May 14, 2013 | 37.02 | 37.43 | 36.20 | 36.28 | 3089 | NASDAQ | ALGN | Mon, May 13, 2013 | 36.61 | 37.64 | 36.49 | 37.07 | 3088 | NASDAQ | ALGN | Fri, May 10, 2013 | 35.85 | 37.05 | 35.85 | 36.87 | 3087 | NASDAQ | ALGN | Thu, May 9, 2013 | 35.85 | 36.25 | 35.60 | 35.68 | 3086 | NASDAQ | ALGN | Wed, May 8, 2013 | 35.62 | 35.94 | 35.32 | 35.91 | 3085 | NASDAQ | ALGN | Tue, May 7, 2013 | 34.70 | 35.68 | 34.37 | 35.63 | 3084 | NASDAQ | ALGN | Mon, May 6, 2013 | 32.58 | 35.65 | 32.15 | 34.42 | 3083 | NASDAQ | ALGN | Fri, May 3, 2013 | 32.74 | 33.08 | 32.47 | 32.60 | 3082 | NASDAQ | ALGN | Thu, May 2, 2013 | 32.76 | 33.22 | 32.34 | 32.40 | 3081 | NASDAQ | ALGN | Wed, May 1, 2013 | 32.88 | 33.11 | 32.38 | 32.65 | 3080 | NASDAQ | ALGN | Tue, Apr 30, 2013 | 33.00 | 33.39 | 32.70 | 33.12 | 3079 | NASDAQ | ALGN | Mon, Apr 29, 2013 | 32.38 | 32.96 | 32.23 | 32.93 | 3078 | NASDAQ | ALGN | Fri, Apr 26, 2013 | 32.20 | 32.68 | 32.10 | 32.34 | 3077 | NASDAQ | ALGN | Thu, Apr 25, 2013 | 32.11 | 32.63 | 32.11 | 32.25 | 3076 | NASDAQ | ALGN | Wed, Apr 24, 2013 | 31.87 | 32.49 | 31.41 | 32.04 | 3075 | NASDAQ | ALGN | Tue, Apr 23, 2013 | 31.91 | 32.34 | 31.46 | 31.99 | 3074 | NASDAQ | ALGN | Mon, Apr 22, 2013 | 31.54 | 32.19 | 30.89 | 32.00 | 3073 | NASDAQ | ALGN | Fri, Apr 19, 2013 | 29.56 | 32.08 | 29.53 | 31.50 | 3072 | NASDAQ | ALGN | Thu, Apr 18, 2013 | 30.90 | 30.95 | 29.72 | 30.13 | 3071 | NASDAQ | ALGN | Wed, Apr 17, 2013 | 31.45 | 31.92 | 30.10 | 30.78 | 3070 | NASDAQ | ALGN | Tue, Apr 16, 2013 | 31.53 | 32.04 | 31.18 | 31.80 | 3069 | NASDAQ | ALGN | Mon, Apr 15, 2013 | 32.44 | 32.71 | 31.17 | 31.20 | 3068 | NASDAQ | ALGN | Fri, Apr 12, 2013 | 32.74 | 32.97 | 32.18 | 32.76 | 3067 | NASDAQ | ALGN | Thu, Apr 11, 2013 | 32.50 | 33.00 | 32.42 | 32.86 | 3066 | NASDAQ | ALGN | Wed, Apr 10, 2013 | 31.98 | 32.67 | 31.97 | 32.63 | 3065 | NASDAQ | ALGN | Tue, Apr 9, 2013 | 31.75 | 32.16 | 31.50 | 31.88 | 3064 | NASDAQ | ALGN | Mon, Apr 8, 2013 | 31.19 | 31.75 | 31.05 | 31.68 | 3063 | NASDAQ | ALGN | Fri, Apr 5, 2013 | 30.90 | 31.21 | 30.54 | 31.04 | 3062 | NASDAQ | ALGN | Thu, Apr 4, 2013 | 30.94 | 31.51 | 30.45 | 31.50 | 3061 | NASDAQ | ALGN | Wed, Apr 3, 2013 | 31.83 | 32.23 | 30.09 | 30.95 | 3060 | NASDAQ | ALGN | Tue, Apr 2, 2013 | 32.73 | 32.92 | 31.78 | 31.85 | 3059 | NASDAQ | ALGN | Mon, Apr 1, 2013 | 33.40 | 33.84 | 32.24 | 32.44 | 3058 | NASDAQ | ALGN | Thu, Mar 28, 2013 | 33.42 | 33.65 | 32.96 | 33.51 | 3057 | NASDAQ | ALGN | Wed, Mar 27, 2013 | 33.40 | 33.70 | 33.29 | 33.32 | 3056 | NASDAQ | ALGN | Tue, Mar 26, 2013 | 33.00 | 33.70 | 32.90 | 33.60 | 3055 | NASDAQ | ALGN | Mon, Mar 25, 2013 | 32.69 | 33.25 | 32.65 | 32.87 | 3054 | NASDAQ | ALGN | Fri, Mar 22, 2013 | 32.17 | 32.70 | 32.03 | 32.63 | 3053 | NASDAQ | ALGN | Thu, Mar 21, 2013 | 32.26 | 32.59 | 31.72 | 32.03 | 3052 | NASDAQ | ALGN | Wed, Mar 20, 2013 | 32.42 | 32.75 | 32.29 | 32.60 | 3051 | NASDAQ | ALGN | Tue, Mar 19, 2013 | 32.38 | 32.85 | 31.84 | 32.29 | 3050 | NASDAQ | ALGN | Mon, Mar 18, 2013 | 32.51 | 33.00 | 32.22 | 32.37 | 3049 | NASDAQ | ALGN | Fri, Mar 15, 2013 | 33.35 | 33.50 | 32.46 | 33.04 | 3048 | NASDAQ | ALGN | Thu, Mar 14, 2013 | 33.03 | 33.35 | 32.69 | 33.29 | 3047 | NASDAQ | ALGN | Wed, Mar 13, 2013 | 32.91 | 32.99 | 32.49 | 32.88 | 3046 | NASDAQ | ALGN | Tue, Mar 12, 2013 | 33.44 | 33.67 | 32.81 | 32.96 | 3045 | NASDAQ | ALGN | Mon, Mar 11, 2013 | 33.10 | 33.60 | 32.90 | 33.53 | 3044 | NASDAQ | ALGN | Fri, Mar 8, 2013 | 32.99 | 33.30 | 32.44 | 33.29 | 3043 | NASDAQ | ALGN | Thu, Mar 7, 2013 | 32.42 | 32.75 | 32.24 | 32.72 | 3042 | NASDAQ | ALGN | Wed, Mar 6, 2013 | 31.91 | 32.47 | 31.91 | 32.44 | 3041 | NASDAQ | ALGN | Tue, Mar 5, 2013 | 31.14 | 32.09 | 31.14 | 31.80 | 3040 | NASDAQ | ALGN | Mon, Mar 4, 2013 | 31.12 | 31.16 | 30.67 | 30.99 | 3039 | NASDAQ | ALGN | Fri, Mar 1, 2013 | 31.18 | 31.64 | 30.70 | 31.13 | 3038 | NASDAQ | ALGN | Thu, Feb 28, 2013 | 31.35 | 31.66 | 31.24 | 31.44 | 3037 | NASDAQ | ALGN | Wed, Feb 27, 2013 | 31.06 | 31.85 | 31.06 | 31.47 | 3036 | NASDAQ | ALGN | Tue, Feb 26, 2013 | 31.31 | 31.43 | 30.97 | 31.05 | 3035 | NASDAQ | ALGN | Mon, Feb 25, 2013 | 31.98 | 32.33 | 31.13 | 31.20 | 3034 | NASDAQ | ALGN | Fri, Feb 22, 2013 | 31.49 | 32.05 | 31.02 | 31.88 | 3033 | NASDAQ | ALGN | Thu, Feb 21, 2013 | 31.06 | 31.43 | 30.95 | 31.41 | 3032 | NASDAQ | ALGN | Wed, Feb 20, 2013 | 32.38 | 32.92 | 31.71 | 31.73 | 3031 | NASDAQ | ALGN | Tue, Feb 19, 2013 | 32.51 | 32.67 | 32.25 | 32.60 | 3030 | NASDAQ | ALGN | Fri, Feb 15, 2013 | 32.84 | 32.84 | 32.45 | 32.73 | 3029 | NASDAQ | ALGN | Thu, Feb 14, 2013 | 32.76 | 32.91 | 32.50 | 32.56 | 3028 | NASDAQ | ALGN | Wed, Feb 13, 2013 | 32.96 | 33.15 | 32.49 | 32.75 | 3027 | NASDAQ | ALGN | Tue, Feb 12, 2013 | 33.07 | 33.16 | 32.77 | 33.02 | 3026 | NASDAQ | ALGN | Mon, Feb 11, 2013 | 32.56 | 33.07 | 32.50 | 33.03 | 3025 | NASDAQ | ALGN | Fri, Feb 8, 2013 | 32.40 | 33.04 | 32.19 | 32.73 | 3024 | NASDAQ | ALGN | Thu, Feb 7, 2013 | 32.18 | 32.41 | 31.83 | 32.24 | 3023 | NASDAQ | ALGN | Wed, Feb 6, 2013 | 32.11 | 32.46 | 31.63 | 32.25 | 3022 | NASDAQ | ALGN | Tue, Feb 5, 2013 | 32.15 | 32.50 | 32.03 | 32.31 | 3021 | NASDAQ | ALGN | Mon, Feb 4, 2013 | 31.26 | 32.51 | 31.16 | 32.12 | 3020 | NASDAQ | ALGN | Fri, Feb 1, 2013 | 31.44 | 32.08 | 31.09 | 31.90 | 3019 | NASDAQ | ALGN | Thu, Jan 31, 2013 | 32.62 | 32.80 | 30.73 | 31.36 | 3018 | NASDAQ | ALGN | Wed, Jan 30, 2013 | 29.21 | 30.04 | 28.27 | 29.27 | 3017 | NASDAQ | ALGN | Tue, Jan 29, 2013 | 28.63 | 28.77 | 28.24 | 28.77 | 3016 | NASDAQ | ALGN | Mon, Jan 28, 2013 | 28.55 | 29.07 | 28.50 | 28.58 | 3015 | NASDAQ | ALGN | Fri, Jan 25, 2013 | 27.89 | 28.61 | 27.58 | 28.59 | 3014 | NASDAQ | ALGN | Thu, Jan 24, 2013 | 27.06 | 27.91 | 27.06 | 27.82 | 3013 | NASDAQ | ALGN | Wed, Jan 23, 2013 | 27.47 | 27.52 | 26.81 | 27.09 | 3012 | NASDAQ | ALGN | Tue, Jan 22, 2013 | 26.62 | 27.44 | 26.55 | 27.42 | 3011 | NASDAQ | ALGN | Fri, Jan 18, 2013 | 26.54 | 27.20 | 26.28 | 26.64 | 3010 | NASDAQ | ALGN | Thu, Jan 17, 2013 | 26.11 | 26.86 | 26.06 | 26.48 | 3009 | NASDAQ | ALGN | Wed, Jan 16, 2013 | 26.31 | 26.40 | 25.68 | 26.00 | 3008 | NASDAQ | ALGN | Tue, Jan 15, 2013 | 26.69 | 26.69 | 26.15 | 26.34 | 3007 | NASDAQ | ALGN | Mon, Jan 14, 2013 | 25.84 | 26.78 | 25.61 | 26.64 | 3006 | NASDAQ | ALGN | Fri, Jan 11, 2013 | 26.50 | 26.55 | 25.68 | 25.87 | 3005 | NASDAQ | ALGN | Thu, Jan 10, 2013 | 27.39 | 27.48 | 26.65 | 26.89 | 3004 | NASDAQ | ALGN | Wed, Jan 9, 2013 | 28.42 | 28.47 | 27.23 | 27.30 | 3003 | NASDAQ | ALGN | Tue, Jan 8, 2013 | 29.00 | 29.01 | 28.06 | 28.25 | 3002 | NASDAQ | ALGN | Mon, Jan 7, 2013 | 29.25 | 29.31 | 28.59 | 28.94 | 3001 | NASDAQ | ALGN | Fri, Jan 4, 2013 | 29.38 | 29.51 | 29.02 | 29.31 | 3000 | NASDAQ | ALGN | Thu, Jan 3, 2013 | 29.04 | 29.25 | 28.60 | 29.17 | 2999 | NASDAQ | ALGN | Wed, Jan 2, 2013 | 28.57 | 28.70 | 28.00 | 28.40 | 2998 | NASDAQ | ALGN | Mon, Dec 31, 2012 | 27.00 | 27.77 | 26.92 | 27.75 | 2997 | NASDAQ | ALGN | Fri, Dec 28, 2012 | 27.26 | 27.37 | 26.89 | 27.07 | 2996 | NASDAQ | ALGN | Thu, Dec 27, 2012 | 27.49 | 27.61 | 26.85 | 27.50 | 2995 | NASDAQ | ALGN | Wed, Dec 26, 2012 | 28.01 | 28.22 | 27.36 | 27.39 | 2994 | NASDAQ | ALGN | Mon, Dec 24, 2012 | 28.43 | 28.57 | 27.88 | 28.00 | 2993 | NASDAQ | ALGN | Fri, Dec 21, 2012 | 28.00 | 28.55 | 27.77 | 28.40 | 2992 | NASDAQ | ALGN | Thu, Dec 20, 2012 | 27.74 | 28.28 | 27.58 | 28.18 | 2991 | NASDAQ | ALGN | Wed, Dec 19, 2012 | 27.20 | 27.76 | 27.00 | 27.63 | 2990 | NASDAQ | ALGN | Tue, Dec 18, 2012 | 26.53 | 27.18 | 26.45 | 27.18 | 2989 | NASDAQ | ALGN | Mon, Dec 17, 2012 | 26.34 | 26.57 | 26.21 | 26.53 | 2988 | NASDAQ | ALGN | Fri, Dec 14, 2012 | 26.26 | 26.59 | 26.25 | 26.36 | 2987 | NASDAQ | ALGN | Thu, Dec 13, 2012 | 26.70 | 26.99 | 26.25 | 26.38 | 2986 | NASDAQ | ALGN | Wed, Dec 12, 2012 | 26.91 | 27.24 | 26.69 | 26.74 | 2985 | NASDAQ | ALGN | Tue, Dec 11, 2012 | 26.10 | 26.96 | 25.78 | 26.79 | 2984 | NASDAQ | ALGN | Mon, Dec 10, 2012 | 25.49 | 26.25 | 25.41 | 26.20 | 2983 | NASDAQ | ALGN | Fri, Dec 7, 2012 | 25.75 | 25.96 | 25.25 | 25.51 | 2982 | NASDAQ | ALGN | Thu, Dec 6, 2012 | 24.60 | 25.72 | 23.45 | 25.64 | 2981 | NASDAQ | ALGN | Wed, Dec 5, 2012 | 26.66 | 26.76 | 26.07 | 26.14 | 2980 | NASDAQ | ALGN | Tue, Dec 4, 2012 | 27.02 | 27.05 | 26.46 | 26.53 | 2979 | NASDAQ | ALGN | Mon, Dec 3, 2012 | 27.57 | 27.63 | 26.89 | 27.06 | 2978 | NASDAQ | ALGN | Fri, Nov 30, 2012 | 27.43 | 27.59 | 27.03 | 27.39 | 2977 | NASDAQ | ALGN | Thu, Nov 29, 2012 | 26.90 | 27.54 | 26.89 | 27.47 | 2976 | NASDAQ | ALGN | Wed, Nov 28, 2012 | 26.69 | 26.90 | 26.51 | 26.80 | 2975 | NASDAQ | ALGN | Tue, Nov 27, 2012 | 26.99 | 27.26 | 26.85 | 26.90 | 2974 | NASDAQ | ALGN | Mon, Nov 26, 2012 | 27.40 | 27.49 | 26.84 | 26.99 | 2973 | NASDAQ | ALGN | Fri, Nov 23, 2012 | 26.98 | 27.44 | 26.93 | 27.41 | 2972 | NASDAQ | ALGN | Wed, Nov 21, 2012 | 26.73 | 27.11 | 26.60 | 26.87 | 2971 | NASDAQ | ALGN | Tue, Nov 20, 2012 | 26.31 | 26.75 | 26.12 | 26.72 | 2970 | NASDAQ | ALGN | Mon, Nov 19, 2012 | 26.44 | 26.77 | 26.27 | 26.71 | 2969 | NASDAQ | ALGN | Fri, Nov 16, 2012 | 25.40 | 26.15 | 25.12 | 26.12 | 2968 | NASDAQ | ALGN | Thu, Nov 15, 2012 | 25.75 | 25.90 | 24.77 | 25.39 | 2967 | NASDAQ | ALGN | Wed, Nov 14, 2012 | 26.42 | 26.51 | 25.65 | 25.65 | 2966 | NASDAQ | ALGN | Tue, Nov 13, 2012 | 26.39 | 26.82 | 26.14 | 26.42 | 2965 | NASDAQ | ALGN | Mon, Nov 12, 2012 | 26.08 | 26.84 | 25.87 | 26.51 | 2964 | NASDAQ | ALGN | Fri, Nov 9, 2012 | 26.01 | 26.24 | 25.62 | 25.88 | 2963 | NASDAQ | ALGN | Thu, Nov 8, 2012 | 25.92 | 26.39 | 25.70 | 26.23 | 2962 | NASDAQ | ALGN | Wed, Nov 7, 2012 | 25.84 | 25.87 | 25.06 | 25.69 | 2961 | NASDAQ | ALGN | Tue, Nov 6, 2012 | 26.41 | 26.68 | 25.87 | 26.03 | 2960 | NASDAQ | ALGN | Mon, Nov 5, 2012 | 26.32 | 26.33 | 25.64 | 26.21 | 2959 | NASDAQ | ALGN | Fri, Nov 2, 2012 | 26.54 | 26.73 | 25.97 | 25.98 | 2958 | NASDAQ | ALGN | Thu, Nov 1, 2012 | 26.55 | 26.83 | 26.27 | 26.42 | 2957 | NASDAQ | ALGN | Wed, Oct 31, 2012 | 26.41 | 26.64 | 26.10 | 26.57 | 2956 | NASDAQ | ALGN | Fri, Oct 26, 2012 | 26.53 | 26.77 | 25.94 | 26.09 | 2955 | NASDAQ | ALGN | Thu, Oct 25, 2012 | 27.01 | 27.37 | 26.31 | 26.49 | 2954 | NASDAQ | ALGN | Wed, Oct 24, 2012 | 27.01 | 27.56 | 26.78 | 26.88 | 2953 | NASDAQ | ALGN | Tue, Oct 23, 2012 | 27.07 | 27.42 | 26.76 | 26.92 | 2952 | NASDAQ | ALGN | Mon, Oct 22, 2012 | 27.42 | 28.15 | 27.37 | 27.59 | 2951 | NASDAQ | ALGN | Fri, Oct 19, 2012 | 27.77 | 28.97 | 27.40 | 27.68 | 2950 | NASDAQ | ALGN | Thu, Oct 18, 2012 | 27.63 | 28.38 | 25.33 | 28.18 | 2949 | NASDAQ | ALGN | Wed, Oct 17, 2012 | 38.27 | 38.43 | 34.55 | 35.41 | 2948 | NASDAQ | ALGN | Tue, Oct 16, 2012 | 37.05 | 38.31 | 36.93 | 38.27 | 2947 | NASDAQ | ALGN | Mon, Oct 15, 2012 | 36.68 | 37.05 | 36.59 | 36.87 | 2946 | NASDAQ | ALGN | Fri, Oct 12, 2012 | 37.04 | 37.33 | 36.55 | 36.56 | 2945 | NASDAQ | ALGN | Thu, Oct 11, 2012 | 37.06 | 37.15 | 36.10 | 36.90 | 2944 | NASDAQ | ALGN | Wed, Oct 10, 2012 | 37.00 | 37.41 | 36.33 | 36.57 | 2943 | NASDAQ | ALGN | Tue, Oct 9, 2012 | 38.23 | 38.26 | 36.63 | 37.03 | 2942 | NASDAQ | ALGN | Mon, Oct 8, 2012 | 38.00 | 38.37 | 37.60 | 38.09 | 2941 | NASDAQ | ALGN | Fri, Oct 5, 2012 | 39.11 | 39.39 | 38.02 | 38.14 | 2940 | NASDAQ | ALGN | Thu, Oct 4, 2012 | 38.44 | 38.90 | 38.07 | 38.90 | 2939 | NASDAQ | ALGN | Wed, Oct 3, 2012 | 37.38 | 38.33 | 37.38 | 38.12 | 2938 | NASDAQ | ALGN | Tue, Oct 2, 2012 | 38.33 | 38.50 | 37.83 | 38.16 | 2937 | NASDAQ | ALGN | Mon, Oct 1, 2012 | 37.17 | 38.46 | 37.15 | 38.00 | 2936 | NASDAQ | ALGN | Fri, Sep 28, 2012 | 37.28 | 37.41 | 36.78 | 36.97 | 2935 | NASDAQ | ALGN | Thu, Sep 27, 2012 | 36.97 | 37.60 | 36.62 | 37.57 | 2934 | NASDAQ | ALGN | Wed, Sep 26, 2012 | 37.22 | 37.41 | 36.29 | 36.73 | 2933 | NASDAQ | ALGN | Tue, Sep 25, 2012 | 37.66 | 38.23 | 37.12 | 37.23 | 2932 | NASDAQ | ALGN | Mon, Sep 24, 2012 | 37.64 | 37.74 | 37.13 | 37.33 | 2931 | NASDAQ | ALGN | Fri, Sep 21, 2012 | 37.02 | 37.85 | 36.68 | 37.83 | 2930 | NASDAQ | ALGN | Thu, Sep 20, 2012 | 36.85 | 36.85 | 36.02 | 36.52 | 2929 | NASDAQ | ALGN | Wed, Sep 19, 2012 | 37.68 | 37.68 | 36.99 | 37.03 | 2928 | NASDAQ | ALGN | Tue, Sep 18, 2012 | 37.40 | 37.58 | 37.02 | 37.46 | 2927 | NASDAQ | ALGN | Mon, Sep 17, 2012 | 37.42 | 37.91 | 36.33 | 37.55 | 2926 | NASDAQ | ALGN | Fri, Sep 14, 2012 | 39.18 | 39.50 | 37.81 | 38.22 | 2925 | NASDAQ | ALGN | Thu, Sep 13, 2012 | 38.61 | 39.82 | 38.10 | 39.17 | 2924 | NASDAQ | ALGN | Wed, Sep 12, 2012 | 38.33 | 38.74 | 38.08 | 38.51 | 2923 | NASDAQ | ALGN | Tue, Sep 11, 2012 | 37.81 | 38.74 | 37.56 | 38.10 | 2922 | NASDAQ | ALGN | Mon, Sep 10, 2012 | 37.92 | 37.97 | 37.27 | 37.48 | 2921 | NASDAQ | ALGN | Fri, Sep 7, 2012 | 37.74 | 38.24 | 37.36 | 37.92 | 2920 | NASDAQ | ALGN | Thu, Sep 6, 2012 | 35.95 | 37.72 | 35.78 | 37.37 | 2919 | NASDAQ | ALGN | Wed, Sep 5, 2012 | 34.97 | 35.84 | 34.97 | 35.64 | 2918 | NASDAQ | ALGN | Tue, Sep 4, 2012 | 33.92 | 35.40 | 33.71 | 35.18 | 2917 | NASDAQ | ALGN | Fri, Aug 31, 2012 | 33.89 | 34.50 | 33.82 | 33.95 | 2916 | NASDAQ | ALGN | Thu, Aug 30, 2012 | 33.66 | 34.06 | 33.42 | 33.83 | 2915 | NASDAQ | ALGN | Wed, Aug 29, 2012 | 33.60 | 34.05 | 33.19 | 33.99 | 2914 | NASDAQ | ALGN | Tue, Aug 28, 2012 | 32.75 | 33.85 | 32.60 | 33.60 | 2913 | NASDAQ | ALGN | Mon, Aug 27, 2012 | 32.93 | 33.16 | 32.42 | 32.82 | 2912 | NASDAQ | ALGN | Fri, Aug 24, 2012 | 32.22 | 33.30 | 32.17 | 32.89 | 2911 | NASDAQ | ALGN | Thu, Aug 23, 2012 | 33.65 | 33.89 | 32.13 | 32.40 | 2910 | NASDAQ | ALGN | Wed, Aug 22, 2012 | 34.10 | 34.17 | 33.56 | 33.78 | 2909 | NASDAQ | ALGN | Tue, Aug 21, 2012 | 34.01 | 34.53 | 33.85 | 34.07 | 2908 | NASDAQ | ALGN | Mon, Aug 20, 2012 | 34.73 | 35.05 | 33.54 | 33.97 | 2907 | NASDAQ | ALGN | Fri, Aug 17, 2012 | 34.26 | 34.68 | 34.00 | 34.67 | 2906 | NASDAQ | ALGN | Thu, Aug 16, 2012 | 34.30 | 34.48 | 33.73 | 34.31 | 2905 | NASDAQ | ALGN | Wed, Aug 15, 2012 | 34.08 | 34.34 | 33.81 | 34.25 | 2904 | NASDAQ | ALGN | Tue, Aug 14, 2012 | 34.29 | 34.85 | 34.07 | 34.27 | 2903 | NASDAQ | ALGN | Mon, Aug 13, 2012 | 34.50 | 34.52 | 33.52 | 34.04 | 2902 | NASDAQ | ALGN | Fri, Aug 10, 2012 | 34.57 | 34.60 | 34.21 | 34.44 | 2901 | NASDAQ | ALGN | Thu, Aug 9, 2012 | 34.59 | 34.91 | 34.32 | 34.72 | 2900 | NASDAQ | ALGN | Wed, Aug 8, 2012 | 34.95 | 35.20 | 34.41 | 34.59 | 2899 | NASDAQ | ALGN | Tue, Aug 7, 2012 | 34.38 | 35.77 | 34.38 | 35.29 | 2898 | NASDAQ | ALGN | Mon, Aug 6, 2012 | 35.10 | 35.16 | 34.23 | 34.26 | 2897 | NASDAQ | ALGN | Fri, Aug 3, 2012 | 34.25 | 34.85 | 34.18 | 34.30 | 2896 | NASDAQ | ALGN | Thu, Aug 2, 2012 | 33.73 | 33.86 | 33.13 | 33.56 | 2895 | NASDAQ | ALGN | Wed, Aug 1, 2012 | 34.08 | 34.50 | 33.43 | 33.57 | 2894 | NASDAQ | ALGN | Tue, Jul 31, 2012 | 34.44 | 35.05 | 33.94 | 33.96 | 2893 | NASDAQ | ALGN | Mon, Jul 30, 2012 | 36.06 | 36.10 | 34.14 | 34.34 | 2892 | NASDAQ | ALGN | Fri, Jul 27, 2012 | 35.03 | 36.04 | 35.03 | 35.82 | 2891 | NASDAQ | ALGN | Thu, Jul 26, 2012 | 34.79 | 35.40 | 34.54 | 35.00 | 2890 | NASDAQ | ALGN | Wed, Jul 25, 2012 | 33.13 | 34.41 | 33.13 | 34.26 | 2889 | NASDAQ | ALGN | Tue, Jul 24, 2012 | 33.51 | 33.85 | 32.86 | 33.16 | 2888 | NASDAQ | ALGN | Mon, Jul 23, 2012 | 33.35 | 33.77 | 33.04 | 33.65 | 2887 | NASDAQ | ALGN | Fri, Jul 20, 2012 | 31.21 | 34.30 | 31.00 | 34.18 | 2886 | NASDAQ | ALGN | Thu, Jul 19, 2012 | 31.10 | 32.00 | 30.79 | 31.70 | 2885 | NASDAQ | ALGN | Wed, Jul 18, 2012 | 30.76 | 31.28 | 30.12 | 30.86 | 2884 | NASDAQ | ALGN | Tue, Jul 17, 2012 | 31.20 | 31.38 | 30.12 | 30.89 | 2883 | NASDAQ | ALGN | Mon, Jul 16, 2012 | 31.47 | 31.47 | 30.02 | 30.98 | 2882 | NASDAQ | ALGN | Fri, Jul 13, 2012 | 31.84 | 31.86 | 31.45 | 31.66 | 2881 | NASDAQ | ALGN | Thu, Jul 12, 2012 | 32.23 | 32.41 | 31.22 | 31.58 | 2880 | NASDAQ | ALGN | Wed, Jul 11, 2012 | 33.52 | 33.60 | 32.44 | 32.77 | 2879 | NASDAQ | ALGN | Tue, Jul 10, 2012 | 34.90 | 35.47 | 33.36 | 33.59 | 2878 | NASDAQ | ALGN | Mon, Jul 9, 2012 | 34.19 | 34.81 | 34.12 | 34.64 | 2877 | NASDAQ | ALGN | Fri, Jul 6, 2012 | 34.75 | 34.81 | 34.00 | 34.20 | 2876 | NASDAQ | ALGN | Thu, Jul 5, 2012 | 35.00 | 35.55 | 34.61 | 34.94 | 2875 | NASDAQ | ALGN | Tue, Jul 3, 2012 | 35.53 | 35.56 | 34.80 | 35.04 | 2874 | NASDAQ | ALGN | Mon, Jul 2, 2012 | 34.25 | 35.42 | 33.68 | 35.22 | 2873 | NASDAQ | ALGN | Fri, Jun 29, 2012 | 32.75 | 33.46 | 32.29 | 33.46 | 2872 | NASDAQ | ALGN | Thu, Jun 28, 2012 | 32.00 | 32.53 | 31.37 | 31.90 | 2871 | NASDAQ | ALGN | Wed, Jun 27, 2012 | 32.64 | 33.11 | 32.23 | 32.41 | 2870 | NASDAQ | ALGN | Tue, Jun 26, 2012 | 31.91 | 32.63 | 31.50 | 32.39 | 2869 | NASDAQ | ALGN | Mon, Jun 25, 2012 | 32.38 | 32.57 | 31.29 | 31.93 | 2868 | NASDAQ | ALGN | Fri, Jun 22, 2012 | 32.98 | 33.09 | 31.17 | 32.80 | 2867 | NASDAQ | ALGN | Thu, Jun 21, 2012 | 34.27 | 34.51 | 32.60 | 32.81 | 2866 | NASDAQ | ALGN | Wed, Jun 20, 2012 | 34.87 | 34.91 | 33.70 | 34.39 | 2865 | NASDAQ | ALGN | Tue, Jun 19, 2012 | 33.87 | 35.15 | 33.82 | 34.73 | 2864 | NASDAQ | ALGN | Mon, Jun 18, 2012 | 31.76 | 35.10 | 31.72 | 33.25 | 2863 | NASDAQ | ALGN | Fri, Jun 15, 2012 | 31.05 | 31.81 | 30.96 | 31.74 | 2862 | NASDAQ | ALGN | Thu, Jun 14, 2012 | 31.10 | 31.63 | 30.60 | 31.17 | 2861 | NASDAQ | ALGN | Wed, Jun 13, 2012 | 30.47 | 31.50 | 30.23 | 31.10 | 2860 | NASDAQ | ALGN | Tue, Jun 12, 2012 | 30.48 | 30.79 | 29.87 | 30.51 | 2859 | NASDAQ | ALGN | Mon, Jun 11, 2012 | 31.40 | 31.40 | 30.19 | 30.21 | 2858 | NASDAQ | ALGN | Fri, Jun 8, 2012 | 30.16 | 31.02 | 29.87 | 30.86 | 2857 | NASDAQ | ALGN | Thu, Jun 7, 2012 | 31.82 | 31.88 | 30.27 | 30.32 | 2856 | NASDAQ | ALGN | Wed, Jun 6, 2012 | 30.54 | 31.25 | 30.43 | 31.22 | 2855 | NASDAQ | ALGN | Tue, Jun 5, 2012 | 28.84 | 30.19 | 28.84 | 30.10 | 2854 | NASDAQ | ALGN | Mon, Jun 4, 2012 | 29.72 | 29.95 | 28.62 | 28.87 | 2853 | NASDAQ | ALGN | Fri, Jun 1, 2012 | 30.42 | 30.50 | 29.36 | 29.57 | 2852 | NASDAQ | ALGN | Thu, May 31, 2012 | 31.46 | 31.58 | 30.61 | 31.23 | 2851 | NASDAQ | ALGN | Wed, May 30, 2012 | 31.91 | 32.03 | 31.28 | 31.40 | 2850 | NASDAQ | ALGN | Tue, May 29, 2012 | 32.10 | 32.90 | 32.01 | 32.26 | 2849 | NASDAQ | ALGN | Fri, May 25, 2012 | 31.43 | 31.88 | 31.19 | 31.85 | 2848 | NASDAQ | ALGN | Thu, May 24, 2012 | 31.46 | 32.08 | 30.95 | 31.51 | 2847 | NASDAQ | ALGN | Wed, May 23, 2012 | 30.62 | 31.43 | 30.13 | 31.23 | 2846 | NASDAQ | ALGN | Tue, May 22, 2012 | 31.46 | 32.17 | 31.01 | 31.21 | 2845 | NASDAQ | ALGN | Mon, May 21, 2012 | 29.96 | 31.27 | 29.83 | 31.21 | 2844 | NASDAQ | ALGN | Fri, May 18, 2012 | 30.33 | 30.39 | 28.86 | 29.72 | 2843 | NASDAQ | ALGN | Thu, May 17, 2012 | 30.98 | 31.15 | 30.23 | 30.32 | 2842 | NASDAQ | ALGN | Wed, May 16, 2012 | 31.25 | 31.40 | 30.78 | 30.89 | 2841 | NASDAQ | ALGN | Tue, May 15, 2012 | 30.76 | 31.46 | 30.25 | 31.25 | 2840 | NASDAQ | ALGN | Mon, May 14, 2012 | 30.63 | 30.84 | 30.26 | 30.59 | 2839 | NASDAQ | ALGN | Fri, May 11, 2012 | 30.87 | 31.38 | 30.60 | 30.80 | 2838 | NASDAQ | ALGN | Thu, May 10, 2012 | 31.65 | 31.65 | 30.64 | 31.13 | 2837 | NASDAQ | ALGN | Wed, May 9, 2012 | 31.06 | 31.60 | 30.71 | 31.44 | 2836 | NASDAQ | ALGN | Tue, May 8, 2012 | 31.27 | 31.54 | 30.77 | 31.46 | 2835 | NASDAQ | ALGN | Mon, May 7, 2012 | 31.22 | 31.76 | 31.14 | 31.60 | 2834 | NASDAQ | ALGN | Fri, May 4, 2012 | 32.10 | 32.10 | 31.17 | 31.48 | 2833 | NASDAQ | ALGN | Thu, May 3, 2012 | 32.41 | 32.50 | 32.02 | 32.31 | 2832 | NASDAQ | ALGN | Wed, May 2, 2012 | 31.73 | 32.46 | 31.36 | 32.43 | 2831 | NASDAQ | ALGN | Tue, May 1, 2012 | 31.58 | 32.55 | 31.52 | 32.10 | 2830 | NASDAQ | ALGN | Mon, Apr 30, 2012 | 31.91 | 32.09 | 31.52 | 31.71 | 2829 | NASDAQ | ALGN | Fri, Apr 27, 2012 | 31.25 | 32.29 | 31.25 | 31.96 | 2828 | NASDAQ | ALGN | Thu, Apr 26, 2012 | 31.49 | 31.81 | 31.24 | 31.45 | 2827 | NASDAQ | ALGN | Wed, Apr 25, 2012 | 31.91 | 32.14 | 31.58 | 31.83 | 2826 | NASDAQ | ALGN | Tue, Apr 24, 2012 | 32.86 | 34.29 | 31.01 | 31.76 | 2825 | NASDAQ | ALGN | Mon, Apr 23, 2012 | 27.50 | 27.52 | 26.85 | 27.44 | 2824 | NASDAQ | ALGN | Fri, Apr 20, 2012 | 28.53 | 28.53 | 27.78 | 27.94 | 2823 | NASDAQ | ALGN | Thu, Apr 19, 2012 | 28.40 | 28.67 | 27.68 | 28.11 | 2822 | NASDAQ | ALGN | Wed, Apr 18, 2012 | 27.63 | 28.32 | 27.32 | 28.30 | 2821 | NASDAQ | ALGN | Tue, Apr 17, 2012 | 27.17 | 28.01 | 27.12 | 27.85 | 2820 | NASDAQ | ALGN | Mon, Apr 16, 2012 | 26.77 | 27.00 | 26.26 | 26.81 | 2819 | NASDAQ | ALGN | Fri, Apr 13, 2012 | 27.02 | 27.02 | 26.51 | 26.73 | 2818 | NASDAQ | ALGN | Thu, Apr 12, 2012 | 26.81 | 27.49 | 26.81 | 27.27 | 2817 | NASDAQ | ALGN | Wed, Apr 11, 2012 | 26.69 | 26.77 | 26.30 | 26.75 | 2816 | NASDAQ | ALGN | Tue, Apr 10, 2012 | 27.24 | 27.37 | 26.06 | 26.33 | 2815 | NASDAQ | ALGN | Mon, Apr 9, 2012 | 27.29 | 27.58 | 27.12 | 27.25 | 2814 | NASDAQ | ALGN | Thu, Apr 5, 2012 | 27.47 | 27.88 | 27.41 | 27.74 | 2813 | NASDAQ | ALGN | Wed, Apr 4, 2012 | 28.24 | 28.65 | 27.50 | 27.68 | 2812 | NASDAQ | ALGN | Tue, Apr 3, 2012 | 28.69 | 29.65 | 28.41 | 28.67 | 2811 | NASDAQ | ALGN | Mon, Apr 2, 2012 | 27.40 | 28.72 | 27.31 | 28.70 | 2810 | NASDAQ | ALGN | Fri, Mar 30, 2012 | 27.59 | 27.96 | 27.45 | 27.55 | 2809 | NASDAQ | ALGN | Thu, Mar 29, 2012 | 27.66 | 27.88 | 27.19 | 27.25 | 2808 | NASDAQ | ALGN | Wed, Mar 28, 2012 | 28.17 | 28.69 | 27.52 | 27.91 | 2807 | NASDAQ | ALGN | Tue, Mar 27, 2012 | 28.37 | 28.50 | 27.94 | 28.13 | 2806 | NASDAQ | ALGN | Mon, Mar 26, 2012 | 27.06 | 28.50 | 27.06 | 28.24 | 2805 | NASDAQ | ALGN | Fri, Mar 23, 2012 | 26.13 | 26.82 | 25.89 | 26.80 | 2804 | NASDAQ | ALGN | Thu, Mar 22, 2012 | 26.57 | 26.71 | 25.98 | 26.13 | 2803 | NASDAQ | ALGN | Wed, Mar 21, 2012 | 26.48 | 27.09 | 26.30 | 26.79 | 2802 | NASDAQ | ALGN | Tue, Mar 20, 2012 | 26.49 | 26.60 | 26.26 | 26.40 | 2801 | NASDAQ | ALGN | Mon, Mar 19, 2012 | 27.00 | 27.09 | 26.64 | 26.74 | 2800 | NASDAQ | ALGN | Fri, Mar 16, 2012 | 27.25 | 27.25 | 26.85 | 27.07 | 2799 | NASDAQ | ALGN | Thu, Mar 15, 2012 | 26.80 | 27.19 | 26.65 | 27.19 | 2798 | NASDAQ | ALGN | Wed, Mar 14, 2012 | 27.00 | 27.25 | 26.75 | 26.85 | 2797 | NASDAQ | ALGN | Tue, Mar 13, 2012 | 26.29 | 27.14 | 26.09 | 27.09 | 2796 | NASDAQ | ALGN | Mon, Mar 12, 2012 | 26.69 | 26.69 | 25.77 | 26.04 | 2795 | NASDAQ | ALGN | Fri, Mar 9, 2012 | 26.48 | 27.00 | 26.37 | 26.60 | 2794 | NASDAQ | ALGN | Thu, Mar 8, 2012 | 26.05 | 26.63 | 25.76 | 26.50 | 2793 | NASDAQ | ALGN | Wed, Mar 7, 2012 | 25.45 | 25.80 | 25.43 | 25.77 | 2792 | NASDAQ | ALGN | Tue, Mar 6, 2012 | 25.68 | 26.22 | 25.08 | 25.35 | 2791 | NASDAQ | ALGN | Mon, Mar 5, 2012 | 26.06 | 26.14 | 25.74 | 25.89 | 2790 | NASDAQ | ALGN | Fri, Mar 2, 2012 | 26.19 | 26.48 | 25.94 | 25.99 | 2789 | NASDAQ | ALGN | Thu, Mar 1, 2012 | 25.94 | 26.34 | 25.40 | 26.18 | 2788 | NASDAQ | ALGN | Wed, Feb 29, 2012 | 26.74 | 26.92 | 25.35 | 25.61 | 2787 | NASDAQ | ALGN | Tue, Feb 28, 2012 | 27.25 | 27.45 | 26.34 | 26.74 | 2786 | NASDAQ | ALGN | Mon, Feb 27, 2012 | 26.47 | 27.19 | 26.22 | 27.12 | 2785 | NASDAQ | ALGN | Fri, Feb 24, 2012 | 26.51 | 26.80 | 26.38 | 26.62 | 2784 | NASDAQ | ALGN | Thu, Feb 23, 2012 | 26.53 | 26.87 | 26.39 | 26.50 | 2783 | NASDAQ | ALGN | Wed, Feb 22, 2012 | 25.70 | 26.72 | 25.70 | 26.53 | 2782 | NASDAQ | ALGN | Tue, Feb 21, 2012 | 27.49 | 27.75 | 26.51 | 26.83 | 2781 | NASDAQ | ALGN | Fri, Feb 17, 2012 | 27.01 | 27.24 | 26.88 | 27.22 | 2780 | NASDAQ | ALGN | Thu, Feb 16, 2012 | 26.52 | 27.10 | 26.31 | 27.07 | 2779 | NASDAQ | ALGN | Wed, Feb 15, 2012 | 26.53 | 26.59 | 26.10 | 26.36 | 2778 | NASDAQ | ALGN | Tue, Feb 14, 2012 | 26.20 | 26.47 | 26.06 | 26.47 | 2777 | NASDAQ | ALGN | Mon, Feb 13, 2012 | 26.43 | 26.64 | 26.20 | 26.43 | 2776 | NASDAQ | ALGN | Fri, Feb 10, 2012 | 25.70 | 26.16 | 25.17 | 26.02 | 2775 | NASDAQ | ALGN | Thu, Feb 9, 2012 | 27.00 | 27.09 | 26.00 | 26.06 | 2774 | NASDAQ | ALGN | Wed, Feb 8, 2012 | 25.95 | 27.12 | 25.51 | 27.08 | 2773 | NASDAQ | ALGN | Tue, Feb 7, 2012 | 25.88 | 26.07 | 25.63 | 25.92 | 2772 | NASDAQ | ALGN | Mon, Feb 6, 2012 | 25.12 | 25.92 | 25.08 | 25.86 | 2771 | NASDAQ | ALGN | Fri, Feb 3, 2012 | 25.09 | 25.66 | 24.87 | 25.43 | 2770 | NASDAQ | ALGN | Thu, Feb 2, 2012 | 24.28 | 24.87 | 24.01 | 24.75 | 2769 | NASDAQ | ALGN | Wed, Feb 1, 2012 | 23.58 | 24.43 | 23.40 | 24.38 | 2768 | NASDAQ | ALGN | Tue, Jan 31, 2012 | 24.08 | 24.89 | 23.42 | 23.56 | 2767 | NASDAQ | ALGN | Mon, Jan 30, 2012 | 25.48 | 25.75 | 25.14 | 25.38 | 2766 | NASDAQ | ALGN | Fri, Jan 27, 2012 | 24.78 | 25.75 | 24.54 | 25.55 | 2765 | NASDAQ | ALGN | Thu, Jan 26, 2012 | 25.06 | 25.21 | 24.77 | 24.95 | 2764 | NASDAQ | ALGN | Wed, Jan 25, 2012 | 24.94 | 24.96 | 24.53 | 24.80 | 2763 | NASDAQ | ALGN | Tue, Jan 24, 2012 | 24.93 | 25.30 | 24.39 | 24.91 | 2762 | NASDAQ | ALGN | Mon, Jan 23, 2012 | 25.14 | 25.46 | 24.87 | 25.00 | 2761 | NASDAQ | ALGN | Fri, Jan 20, 2012 | 25.21 | 25.30 | 25.01 | 25.20 | 2760 | NASDAQ | ALGN | Thu, Jan 19, 2012 | 24.72 | 25.33 | 24.66 | 25.24 | 2759 | NASDAQ | ALGN | Wed, Jan 18, 2012 | 24.91 | 25.12 | 24.51 | 24.79 | 2758 | NASDAQ | ALGN | Tue, Jan 17, 2012 | 24.25 | 25.38 | 24.17 | 24.91 | 2757 | NASDAQ | ALGN | Fri, Jan 13, 2012 | 24.32 | 24.62 | 23.83 | 24.08 | 2756 | NASDAQ | ALGN | Thu, Jan 12, 2012 | 24.07 | 24.76 | 23.90 | 24.71 | 2755 | NASDAQ | ALGN | Wed, Jan 11, 2012 | 23.22 | 24.05 | 23.22 | 23.95 | 2754 | NASDAQ | ALGN | Tue, Jan 10, 2012 | 23.08 | 23.48 | 22.70 | 23.33 | 2753 | NASDAQ | ALGN | Mon, Jan 9, 2012 | 23.58 | 23.58 | 22.39 | 22.67 | 2752 | NASDAQ | ALGN | Fri, Jan 6, 2012 | 24.12 | 24.20 | 23.64 | 23.71 | 2751 | NASDAQ | ALGN | Thu, Jan 5, 2012 | 24.28 | 24.61 | 23.79 | 24.19 | 2750 | NASDAQ | ALGN | Wed, Jan 4, 2012 | 23.92 | 24.58 | 23.80 | 24.41 | 2749 | NASDAQ | ALGN | Tue, Jan 3, 2012 | 24.24 | 24.66 | 23.88 | 23.95 | 2748 | NASDAQ | ALGN | Fri, Dec 30, 2011 | 24.02 | 24.06 | 23.50 | 23.73 | 2747 | NASDAQ | ALGN | Thu, Dec 29, 2011 | 23.80 | 24.18 | 23.63 | 24.02 | 2746 | NASDAQ | ALGN | Wed, Dec 28, 2011 | 24.81 | 24.87 | 23.63 | 23.73 | 2745 | NASDAQ | ALGN | Tue, Dec 27, 2011 | 24.50 | 24.99 | 24.50 | 24.87 | 2744 | NASDAQ | ALGN | Fri, Dec 23, 2011 | 24.85 | 24.98 | 24.31 | 24.54 | 2743 | NASDAQ | ALGN | Thu, Dec 22, 2011 | 24.62 | 25.12 | 24.45 | 24.72 | 2742 | NASDAQ | ALGN | Wed, Dec 21, 2011 | 24.79 | 24.99 | 24.30 | 24.60 | 2741 | NASDAQ | ALGN | Tue, Dec 20, 2011 | 24.30 | 25.00 | 23.65 | 24.96 | 2740 | NASDAQ | ALGN | Mon, Dec 19, 2011 | 24.00 | 24.41 | 23.68 | 23.80 | 2739 | NASDAQ | ALGN | Fri, Dec 16, 2011 | 23.94 | 24.48 | 23.81 | 23.95 | 2738 | NASDAQ | ALGN | Thu, Dec 15, 2011 | 23.53 | 23.78 | 23.15 | 23.63 | 2737 | NASDAQ | ALGN | Wed, Dec 14, 2011 | 23.68 | 23.77 | 23.13 | 23.18 | 2736 | NASDAQ | ALGN | Tue, Dec 13, 2011 | 24.76 | 24.93 | 23.57 | 23.85 | 2735 | NASDAQ | ALGN | Mon, Dec 12, 2011 | 25.01 | 25.01 | 24.19 | 24.64 | 2734 | NASDAQ | ALGN | Fri, Dec 9, 2011 | 24.47 | 25.58 | 24.18 | 25.41 | 2733 | NASDAQ | ALGN | Thu, Dec 8, 2011 | 24.91 | 25.10 | 24.41 | 24.45 | 2732 | NASDAQ | ALGN | Wed, Dec 7, 2011 | 24.70 | 25.11 | 24.28 | 25.05 | 2731 | NASDAQ | ALGN | Tue, Dec 6, 2011 | 24.43 | 25.01 | 24.07 | 24.85 | 2730 | NASDAQ | ALGN | Mon, Dec 5, 2011 | 24.77 | 24.98 | 24.18 | 24.48 | 2729 | NASDAQ | ALGN | Fri, Dec 2, 2011 | 24.73 | 25.01 | 24.27 | 24.37 | 2728 | NASDAQ | ALGN | Thu, Dec 1, 2011 | 24.37 | 24.82 | 24.24 | 24.50 | 2727 | NASDAQ | ALGN | Wed, Nov 30, 2011 | 23.33 | 24.99 | 22.95 | 24.50 | 2726 | NASDAQ | ALGN | Tue, Nov 29, 2011 | 22.84 | 23.05 | 22.59 | 22.81 | 2725 | NASDAQ | ALGN | Mon, Nov 28, 2011 | 22.00 | 22.95 | 21.83 | 22.88 | 2724 | NASDAQ | ALGN | Fri, Nov 25, 2011 | 21.48 | 21.78 | 21.20 | 21.23 | 2723 | NASDAQ | ALGN | Wed, Nov 23, 2011 | 22.09 | 22.29 | 21.43 | 21.55 | 2722 | NASDAQ | ALGN | Tue, Nov 22, 2011 | 22.38 | 22.80 | 22.18 | 22.26 | 2721 | NASDAQ | ALGN | Mon, Nov 21, 2011 | 22.06 | 22.49 | 21.76 | 22.44 | 2720 | NASDAQ | ALGN | Fri, Nov 18, 2011 | 22.35 | 22.80 | 22.20 | 22.43 | 2719 | NASDAQ | ALGN | Thu, Nov 17, 2011 | 22.26 | 23.03 | 21.88 | 22.25 | 2718 | NASDAQ | ALGN | Wed, Nov 16, 2011 | 22.85 | 23.18 | 22.27 | 22.31 | 2717 | NASDAQ | ALGN | Tue, Nov 15, 2011 | 22.88 | 23.29 | 22.57 | 23.10 | 2716 | NASDAQ | ALGN | Mon, Nov 14, 2011 | 22.78 | 23.46 | 22.41 | 23.12 | 2715 | NASDAQ | ALGN | Fri, Nov 11, 2011 | 22.29 | 23.11 | 22.05 | 23.03 | 2714 | NASDAQ | ALGN | Thu, Nov 10, 2011 | 22.33 | 22.48 | 21.71 | 22.04 | 2713 | NASDAQ | ALGN | Wed, Nov 9, 2011 | 22.10 | 22.55 | 21.70 | 21.94 | 2712 | NASDAQ | ALGN | Tue, Nov 8, 2011 | 23.00 | 23.19 | 22.35 | 22.88 | 2711 | NASDAQ | ALGN | Mon, Nov 7, 2011 | 22.55 | 23.00 | 22.42 | 22.98 | 2710 | NASDAQ | ALGN | Fri, Nov 4, 2011 | 22.00 | 22.67 | 22.00 | 22.57 | 2709 | NASDAQ | ALGN | Thu, Nov 3, 2011 | 22.06 | 22.47 | 21.53 | 22.34 | 2708 | NASDAQ | ALGN | Wed, Nov 2, 2011 | 21.92 | 22.21 | 21.65 | 22.00 | 2707 | NASDAQ | ALGN | Tue, Nov 1, 2011 | 21.88 | 22.50 | 21.52 | 21.72 | 2706 | NASDAQ | ALGN | Mon, Oct 31, 2011 | 23.16 | 23.86 | 22.76 | 23.03 | 2705 | NASDAQ | ALGN | Fri, Oct 28, 2011 | 21.49 | 24.00 | 21.25 | 23.65 | 2704 | NASDAQ | ALGN | Thu, Oct 27, 2011 | 17.89 | 18.34 | 17.46 | 17.81 | 2703 | NASDAQ | ALGN | Wed, Oct 26, 2011 | 17.82 | 17.82 | 17.20 | 17.26 | 2702 | NASDAQ | ALGN | Tue, Oct 25, 2011 | 17.82 | 17.88 | 17.41 | 17.57 | 2701 | NASDAQ | ALGN | Mon, Oct 24, 2011 | 17.37 | 18.10 | 17.32 | 18.04 | 2700 | NASDAQ | ALGN | Fri, Oct 21, 2011 | 16.87 | 17.35 | 16.74 | 17.32 | 2699 | NASDAQ | ALGN | Thu, Oct 20, 2011 | 16.13 | 16.57 | 15.74 | 16.52 | 2698 | NASDAQ | ALGN | Wed, Oct 19, 2011 | 16.38 | 16.61 | 16.05 | 16.13 | 2697 | NASDAQ | ALGN | Tue, Oct 18, 2011 | 15.85 | 16.56 | 15.55 | 16.40 | 2696 | NASDAQ | ALGN | Mon, Oct 17, 2011 | 16.27 | 16.47 | 15.75 | 15.83 | 2695 | NASDAQ | ALGN | Fri, Oct 14, 2011 | 16.50 | 16.57 | 16.16 | 16.38 | 2694 | NASDAQ | ALGN | Thu, Oct 13, 2011 | 16.60 | 16.75 | 16.04 | 16.33 | 2693 | NASDAQ | ALGN | Wed, Oct 12, 2011 | 16.79 | 16.95 | 16.46 | 16.70 | 2692 | NASDAQ | ALGN | Tue, Oct 11, 2011 | 16.87 | 17.10 | 16.55 | 16.76 | 2691 | NASDAQ | ALGN | Mon, Oct 10, 2011 | 16.52 | 17.10 | 16.52 | 17.03 | 2690 | NASDAQ | ALGN | Fri, Oct 7, 2011 | 16.81 | 17.11 | 16.18 | 16.20 | 2689 | NASDAQ | ALGN | Thu, Oct 6, 2011 | 16.09 | 16.83 | 15.85 | 16.79 | 2688 | NASDAQ | ALGN | Wed, Oct 5, 2011 | 16.08 | 16.25 | 15.77 | 16.10 | 2687 | NASDAQ | ALGN | Tue, Oct 4, 2011 | 14.26 | 16.15 | 14.26 | 16.08 | 2686 | NASDAQ | ALGN | Mon, Oct 3, 2011 | 15.00 | 15.49 | 14.25 | 14.26 | 2685 | NASDAQ | ALGN | Fri, Sep 30, 2011 | 15.48 | 15.81 | 15.15 | 15.17 | 2684 | NASDAQ | ALGN | Thu, Sep 29, 2011 | 15.91 | 16.14 | 15.35 | 15.73 | 2683 | NASDAQ | ALGN | Wed, Sep 28, 2011 | 16.00 | 16.28 | 15.52 | 15.54 | 2682 | NASDAQ | ALGN | Tue, Sep 27, 2011 | 15.52 | 16.29 | 15.50 | 16.03 | 2681 | NASDAQ | ALGN | Mon, Sep 26, 2011 | 15.06 | 15.35 | 14.65 | 15.13 | 2680 | NASDAQ | ALGN | Fri, Sep 23, 2011 | 15.00 | 15.28 | 14.79 | 14.96 | 2679 | NASDAQ | ALGN | Thu, Sep 22, 2011 | 15.20 | 15.40 | 14.69 | 15.01 | 2678 | NASDAQ | ALGN | Wed, Sep 21, 2011 | 16.22 | 16.26 | 15.53 | 15.62 | 2677 | NASDAQ | ALGN | Tue, Sep 20, 2011 | 16.72 | 17.00 | 16.10 | 16.22 | 2676 | NASDAQ | ALGN | Mon, Sep 19, 2011 | 16.73 | 16.94 | 16.39 | 16.64 | 2675 | NASDAQ | ALGN | Fri, Sep 16, 2011 | 17.59 | 17.82 | 17.05 | 17.15 | 2674 | NASDAQ | ALGN | Thu, Sep 15, 2011 | 17.64 | 17.64 | 16.98 | 17.45 | 2673 | NASDAQ | ALGN | Wed, Sep 14, 2011 | 17.37 | 17.72 | 16.93 | 17.43 | 2672 | NASDAQ | ALGN | Tue, Sep 13, 2011 | 16.56 | 17.29 | 16.42 | 17.25 | 2671 | NASDAQ | ALGN | Mon, Sep 12, 2011 | 16.72 | 16.76 | 16.17 | 16.42 | 2670 | NASDAQ | ALGN | Fri, Sep 9, 2011 | 17.72 | 17.72 | 16.91 | 17.07 | 2669 | NASDAQ | ALGN | Thu, Sep 8, 2011 | 18.36 | 18.56 | 17.79 | 17.93 | 2668 | NASDAQ | ALGN | Wed, Sep 7, 2011 | 17.93 | 18.59 | 17.71 | 18.58 | 2667 | NASDAQ | ALGN | Tue, Sep 6, 2011 | 17.23 | 17.62 | 17.07 | 17.60 | 2666 | NASDAQ | ALGN | Fri, Sep 2, 2011 | 18.39 | 18.79 | 17.57 | 17.82 | 2665 | NASDAQ | ALGN | Thu, Sep 1, 2011 | 19.15 | 19.35 | 18.71 | 18.85 | 2664 | NASDAQ | ALGN | Wed, Aug 31, 2011 | 19.02 | 19.26 | 18.80 | 19.10 | 2663 | NASDAQ | ALGN | Tue, Aug 30, 2011 | 19.12 | 19.33 | 18.72 | 18.85 | 2662 | NASDAQ | ALGN | Mon, Aug 29, 2011 | 18.58 | 19.45 | 18.58 | 19.36 | 2661 | NASDAQ | ALGN | Fri, Aug 26, 2011 | 17.43 | 18.46 | 17.39 | 18.34 | 2660 | NASDAQ | ALGN | Thu, Aug 25, 2011 | 18.22 | 18.25 | 17.46 | 17.59 | 2659 | NASDAQ | ALGN | Wed, Aug 24, 2011 | 17.81 | 18.33 | 17.61 | 18.08 | 2658 | NASDAQ | ALGN | Tue, Aug 23, 2011 | 16.76 | 17.93 | 16.62 | 17.91 | 2657 | NASDAQ | ALGN | Mon, Aug 22, 2011 | 17.11 | 17.31 | 16.65 | 16.73 | 2656 | NASDAQ | ALGN | Fri, Aug 19, 2011 | 16.58 | 17.16 | 16.24 | 16.64 | 2655 | NASDAQ | ALGN | Thu, Aug 18, 2011 | 17.64 | 17.65 | 16.82 | 16.99 | 2654 | NASDAQ | ALGN | Wed, Aug 17, 2011 | 18.42 | 18.65 | 18.03 | 18.25 | 2653 | NASDAQ | ALGN | Tue, Aug 16, 2011 | 18.86 | 18.86 | 18.04 | 18.25 | 2652 | NASDAQ | ALGN | Mon, Aug 15, 2011 | 18.82 | 19.21 | 18.40 | 19.06 | 2651 | NASDAQ | ALGN | Fri, Aug 12, 2011 | 18.87 | 19.20 | 18.17 | 18.57 | 2650 | NASDAQ | ALGN | Thu, Aug 11, 2011 | 17.61 | 19.02 | 17.21 | 18.68 | 2649 | NASDAQ | ALGN | Wed, Aug 10, 2011 | 17.84 | 18.42 | 17.44 | 17.54 | 2648 | NASDAQ | ALGN | Tue, Aug 9, 2011 | 17.71 | 18.60 | 16.67 | 18.28 | 2647 | NASDAQ | ALGN | Mon, Aug 8, 2011 | 18.46 | 18.73 | 17.21 | 17.21 | 2646 | NASDAQ | ALGN | Fri, Aug 5, 2011 | 19.47 | 19.73 | 18.90 | 19.10 | 2645 | NASDAQ | ALGN | Thu, Aug 4, 2011 | 20.18 | 20.31 | 19.34 | 19.35 | 2644 | NASDAQ | ALGN | Wed, Aug 3, 2011 | 21.20 | 21.73 | 20.23 | 20.57 | 2643 | NASDAQ | ALGN | Tue, Aug 2, 2011 | 21.82 | 22.49 | 21.12 | 21.13 | 2642 | NASDAQ | ALGN | Mon, Aug 1, 2011 | 22.26 | 22.53 | 21.29 | 22.15 | 2641 | NASDAQ | ALGN | Fri, Jul 29, 2011 | 21.91 | 22.26 | 21.52 | 21.99 | 2640 | NASDAQ | ALGN | Thu, Jul 28, 2011 | 22.10 | 22.67 | 21.98 | 22.10 | 2639 | NASDAQ | ALGN | Wed, Jul 27, 2011 | 22.94 | 23.21 | 21.93 | 22.08 | 2638 | NASDAQ | ALGN | Tue, Jul 26, 2011 | 23.30 | 23.45 | 22.81 | 23.05 | 2637 | NASDAQ | ALGN | Mon, Jul 25, 2011 | 23.78 | 23.86 | 23.27 | 23.32 | 2636 | NASDAQ | ALGN | Fri, Jul 22, 2011 | 23.68 | 24.06 | 23.57 | 24.02 | 2635 | NASDAQ | ALGN | Thu, Jul 21, 2011 | 23.35 | 23.67 | 23.21 | 23.63 | 2634 | NASDAQ | ALGN | Wed, Jul 20, 2011 | 23.60 | 23.60 | 23.13 | 23.29 | 2633 | NASDAQ | ALGN | Tue, Jul 19, 2011 | 23.15 | 23.67 | 22.89 | 23.55 | 2632 | NASDAQ | ALGN | Mon, Jul 18, 2011 | 23.35 | 23.45 | 22.64 | 23.04 | 2631 | NASDAQ | ALGN | Fri, Jul 15, 2011 | 23.51 | 23.75 | 23.34 | 23.47 | 2630 | NASDAQ | ALGN | Thu, Jul 14, 2011 | 23.80 | 23.95 | 23.34 | 23.36 | 2629 | NASDAQ | ALGN | Wed, Jul 13, 2011 | 23.45 | 24.16 | 23.30 | 23.80 | 2628 | NASDAQ | ALGN | Tue, Jul 12, 2011 | 23.35 | 23.78 | 23.29 | 23.39 | 2627 | NASDAQ | ALGN | Mon, Jul 11, 2011 | 23.53 | 23.91 | 23.35 | 23.39 | 2626 | NASDAQ | ALGN | Fri, Jul 8, 2011 | 23.48 | 23.89 | 23.29 | 23.86 | 2625 | NASDAQ | ALGN | Thu, Jul 7, 2011 | 23.48 | 23.89 | 23.22 | 23.88 | 2624 | NASDAQ | ALGN | Wed, Jul 6, 2011 | 22.95 | 23.29 | 22.84 | 23.23 | 2623 | NASDAQ | ALGN | Tue, Jul 5, 2011 | 22.48 | 23.06 | 22.48 | 23.00 | 2622 | NASDAQ | ALGN | Fri, Jul 1, 2011 | 22.80 | 23.32 | 22.60 | 23.01 | 2621 | NASDAQ | ALGN | Thu, Jun 30, 2011 | 22.55 | 22.86 | 22.44 | 22.80 | 2620 | NASDAQ | ALGN | Wed, Jun 29, 2011 | 22.50 | 22.66 | 22.35 | 22.55 | 2619 | NASDAQ | ALGN | Tue, Jun 28, 2011 | 22.12 | 22.55 | 22.08 | 22.45 | 2618 | NASDAQ | ALGN | Mon, Jun 27, 2011 | 21.80 | 22.12 | 21.65 | 22.00 | 2617 | NASDAQ | ALGN | Fri, Jun 24, 2011 | 22.70 | 22.70 | 22.06 | 22.09 | 2616 | NASDAQ | ALGN | Thu, Jun 23, 2011 | 22.93 | 23.00 | 22.39 | 22.65 | 2615 | NASDAQ | ALGN | Wed, Jun 22, 2011 | 23.50 | 23.95 | 23.19 | 23.22 | 2614 | NASDAQ | ALGN | Tue, Jun 21, 2011 | 22.83 | 23.65 | 22.50 | 23.58 | 2613 | NASDAQ | ALGN | Mon, Jun 20, 2011 | 22.88 | 22.96 | 22.59 | 22.69 | 2612 | NASDAQ | ALGN | Fri, Jun 17, 2011 | 23.37 | 23.97 | 22.83 | 22.92 | 2611 | NASDAQ | ALGN | Thu, Jun 16, 2011 | 23.31 | 23.56 | 22.83 | 23.19 | 2610 | NASDAQ | ALGN | Wed, Jun 15, 2011 | 23.72 | 24.06 | 23.20 | 23.34 | 2609 | NASDAQ | ALGN | Tue, Jun 14, 2011 | 23.80 | 24.09 | 23.66 | 24.01 | 2608 | NASDAQ | ALGN | Mon, Jun 13, 2011 | 23.51 | 23.76 | 23.29 | 23.52 | 2607 | NASDAQ | ALGN | Fri, Jun 10, 2011 | 23.29 | 23.68 | 23.03 | 23.41 | 2606 | NASDAQ | ALGN | Thu, Jun 9, 2011 | 23.08 | 23.62 | 22.98 | 23.43 | 2605 | NASDAQ | ALGN | Wed, Jun 8, 2011 | 23.38 | 23.39 | 22.85 | 23.00 | 2604 | NASDAQ | ALGN | Tue, Jun 7, 2011 | 23.52 | 23.88 | 23.48 | 23.50 | 2603 | NASDAQ | ALGN | Mon, Jun 6, 2011 | 24.19 | 24.19 | 23.25 | 23.47 | 2602 | NASDAQ | ALGN | Fri, Jun 3, 2011 | 23.60 | 23.84 | 23.22 | 23.59 | 2601 | NASDAQ | ALGN | Thu, Jun 2, 2011 | 24.15 | 24.29 | 23.37 | 23.78 | 2600 | NASDAQ | ALGN | Wed, Jun 1, 2011 | 24.42 | 24.76 | 23.99 | 24.21 | 2599 | NASDAQ | ALGN | Tue, May 31, 2011 | 24.53 | 24.75 | 24.09 | 24.50 | 2598 | NASDAQ | ALGN | Fri, May 27, 2011 | 24.18 | 24.50 | 24.15 | 24.40 | 2597 | NASDAQ | ALGN | Thu, May 26, 2011 | 23.00 | 24.22 | 23.00 | 24.18 | 2596 | NASDAQ | ALGN | Wed, May 25, 2011 | 22.77 | 23.17 | 22.36 | 23.10 | 2595 | NASDAQ | ALGN | Tue, May 24, 2011 | 23.27 | 23.27 | 22.65 | 22.82 | 2594 | NASDAQ | ALGN | Mon, May 23, 2011 | 23.48 | 23.53 | 23.00 | 23.27 | 2593 | NASDAQ | ALGN | Fri, May 20, 2011 | 24.20 | 24.42 | 23.71 | 23.97 | 2592 | NASDAQ | ALGN | Thu, May 19, 2011 | 23.81 | 24.51 | 23.81 | 24.21 | 2591 | NASDAQ | ALGN | Wed, May 18, 2011 | 23.40 | 23.82 | 23.06 | 23.71 | 2590 | NASDAQ | ALGN | Tue, May 17, 2011 | 22.84 | 23.51 | 22.75 | 23.41 | 2589 | NASDAQ | ALGN | Mon, May 16, 2011 | 23.18 | 23.40 | 22.94 | 23.02 | 2588 | NASDAQ | ALGN | Fri, May 13, 2011 | 23.56 | 23.81 | 23.28 | 23.38 | 2587 | NASDAQ | ALGN | Thu, May 12, 2011 | 23.47 | 23.98 | 23.25 | 23.60 | 2586 | NASDAQ | ALGN | Wed, May 11, 2011 | 23.62 | 23.88 | 23.07 | 23.61 | 2585 | NASDAQ | ALGN | Tue, May 10, 2011 | 23.94 | 24.10 | 23.55 | 23.77 | 2584 | NASDAQ | ALGN | Mon, May 9, 2011 | 23.40 | 23.83 | 23.19 | 23.78 | 2583 | NASDAQ | ALGN | Fri, May 6, 2011 | 23.53 | 23.75 | 23.23 | 23.46 | 2582 | NASDAQ | ALGN | Thu, May 5, 2011 | 23.72 | 23.99 | 23.09 | 23.18 | 2581 | NASDAQ | ALGN | Wed, May 4, 2011 | 24.38 | 24.43 | 23.71 | 23.95 | 2580 | NASDAQ | ALGN | Tue, May 3, 2011 | 24.49 | 24.80 | 24.06 | 24.35 | 2579 | NASDAQ | ALGN | Mon, May 2, 2011 | 24.14 | 24.80 | 24.00 | 24.60 | 2578 | NASDAQ | ALGN | Fri, Apr 29, 2011 | 24.17 | 24.28 | 23.87 | 24.14 | 2577 | NASDAQ | ALGN | Thu, Apr 28, 2011 | 24.42 | 24.45 | 23.92 | 24.07 | 2576 | NASDAQ | ALGN | Wed, Apr 27, 2011 | 24.49 | 24.86 | 24.40 | 24.59 | 2575 | NASDAQ | ALGN | Tue, Apr 26, 2011 | 24.38 | 24.91 | 24.15 | 24.57 | 2574 | NASDAQ | ALGN | Mon, Apr 25, 2011 | 24.81 | 25.26 | 24.67 | 24.98 | 2573 | NASDAQ | ALGN | Thu, Apr 21, 2011 | 24.00 | 25.94 | 23.58 | 24.99 | 2572 | NASDAQ | ALGN | Wed, Apr 20, 2011 | 21.68 | 21.83 | 21.20 | 21.39 | 2571 | NASDAQ | ALGN | Tue, Apr 19, 2011 | 21.44 | 21.70 | 21.23 | 21.41 | 2570 | NASDAQ | ALGN | Mon, Apr 18, 2011 | 21.90 | 21.93 | 21.03 | 21.34 | 2569 | NASDAQ | ALGN | Fri, Apr 15, 2011 | 21.36 | 22.32 | 21.36 | 22.17 | 2568 | NASDAQ | ALGN | Thu, Apr 14, 2011 | 20.82 | 21.45 | 20.76 | 21.45 | 2567 | NASDAQ | ALGN | Wed, Apr 13, 2011 | 21.00 | 21.15 | 20.85 | 21.05 | 2566 | NASDAQ | ALGN | Tue, Apr 12, 2011 | 20.86 | 21.09 | 20.74 | 20.92 | 2565 | NASDAQ | ALGN | Mon, Apr 11, 2011 | 21.24 | 21.45 | 20.99 | 21.04 | 2564 | NASDAQ | ALGN | Fri, Apr 8, 2011 | 21.33 | 21.41 | 21.06 | 21.20 | 2563 | NASDAQ | ALGN | Thu, Apr 7, 2011 | 21.32 | 21.50 | 21.00 | 21.15 | 2562 | NASDAQ | ALGN | Wed, Apr 6, 2011 | 21.28 | 21.38 | 21.12 | 21.26 | 2561 | NASDAQ | ALGN | Tue, Apr 5, 2011 | 21.25 | 21.42 | 21.01 | 21.14 | 2560 | NASDAQ | ALGN | Mon, Apr 4, 2011 | 20.78 | 21.38 | 20.78 | 21.21 | 2559 | NASDAQ | ALGN | Fri, Apr 1, 2011 | 20.58 | 20.78 | 20.41 | 20.70 | 2558 | NASDAQ | ALGN | Thu, Mar 31, 2011 | 20.35 | 20.62 | 20.10 | 20.48 | 2557 | NASDAQ | ALGN | Wed, Mar 30, 2011 | 21.14 | 21.35 | 19.56 | 20.37 | 2556 | NASDAQ | ALGN | Tue, Mar 29, 2011 | 20.94 | 21.20 | 20.78 | 21.18 | 2555 | NASDAQ | ALGN | Mon, Mar 28, 2011 | 21.10 | 21.13 | 20.93 | 20.98 | 2554 | NASDAQ | ALGN | Fri, Mar 25, 2011 | 20.67 | 21.21 | 20.56 | 21.00 | 2553 | NASDAQ | ALGN | Thu, Mar 24, 2011 | 20.51 | 20.68 | 20.23 | 20.63 | 2552 | NASDAQ | ALGN | Wed, Mar 23, 2011 | 20.66 | 20.74 | 20.22 | 20.34 | 2551 | NASDAQ | ALGN | Tue, Mar 22, 2011 | 20.89 | 21.03 | 20.72 | 20.74 | 2550 | NASDAQ | ALGN | Mon, Mar 21, 2011 | 21.15 | 21.27 | 20.76 | 20.80 | 2549 | NASDAQ | ALGN | Fri, Mar 18, 2011 | 20.55 | 20.91 | 20.48 | 20.91 | 2548 | NASDAQ | ALGN | Thu, Mar 17, 2011 | 20.62 | 20.69 | 20.24 | 20.33 | 2547 | NASDAQ | ALGN | Wed, Mar 16, 2011 | 20.32 | 21.11 | 20.23 | 20.33 | 2546 | NASDAQ | ALGN | Tue, Mar 15, 2011 | 20.22 | 20.74 | 20.17 | 20.43 | 2545 | NASDAQ | ALGN | Mon, Mar 14, 2011 | 20.93 | 21.15 | 20.82 | 20.85 | 2544 | NASDAQ | ALGN | Fri, Mar 11, 2011 | 20.93 | 21.19 | 20.70 | 21.04 | 2543 | NASDAQ | ALGN | Thu, Mar 10, 2011 | 21.55 | 21.55 | 20.85 | 20.96 | 2542 | NASDAQ | ALGN | Wed, Mar 9, 2011 | 21.77 | 21.93 | 21.60 | 21.78 | 2541 | NASDAQ | ALGN | Tue, Mar 8, 2011 | 21.09 | 22.05 | 21.02 | 21.80 | 2540 | NASDAQ | ALGN | Mon, Mar 7, 2011 | 21.85 | 21.89 | 21.15 | 21.51 | 2539 | NASDAQ | ALGN | Fri, Mar 4, 2011 | 21.65 | 21.78 | 21.32 | 21.68 | 2538 | NASDAQ | ALGN | Thu, Mar 3, 2011 | 21.01 | 21.88 | 21.01 | 21.60 | 2537 | NASDAQ | ALGN | Wed, Mar 2, 2011 | 20.52 | 20.86 | 20.44 | 20.80 | 2536 | NASDAQ | ALGN | Tue, Mar 1, 2011 | 20.83 | 20.99 | 20.46 | 20.52 | 2535 | NASDAQ | ALGN | Mon, Feb 28, 2011 | 20.51 | 21.15 | 20.15 | 20.85 | 2534 | NASDAQ | ALGN | Fri, Feb 25, 2011 | 19.60 | 20.37 | 19.51 | 20.29 | 2533 | NASDAQ | ALGN | Thu, Feb 24, 2011 | 19.27 | 19.61 | 19.20 | 19.54 | 2532 | NASDAQ | ALGN | Wed, Feb 23, 2011 | 19.50 | 19.82 | 19.10 | 19.31 | 2531 | NASDAQ | ALGN | Tue, Feb 22, 2011 | 20.50 | 20.56 | 19.67 | 19.86 | 2530 | NASDAQ | ALGN | Fri, Feb 18, 2011 | 21.10 | 21.15 | 20.66 | 20.79 | 2529 | NASDAQ | ALGN | Thu, Feb 17, 2011 | 20.96 | 21.22 | 20.74 | 21.03 | 2528 | NASDAQ | ALGN | Wed, Feb 16, 2011 | 20.66 | 21.05 | 20.54 | 21.02 | 2527 | NASDAQ | ALGN | Tue, Feb 15, 2011 | 20.75 | 21.07 | 20.50 | 20.51 | 2526 | NASDAQ | ALGN | Mon, Feb 14, 2011 | 20.94 | 21.20 | 20.70 | 20.97 | 2525 | NASDAQ | ALGN | Fri, Feb 11, 2011 | 20.80 | 20.95 | 20.55 | 20.87 | 2524 | NASDAQ | ALGN | Thu, Feb 10, 2011 | 20.66 | 21.17 | 20.65 | 20.79 | 2523 | NASDAQ | ALGN | Wed, Feb 9, 2011 | 21.12 | 21.25 | 20.62 | 20.72 | 2522 | NASDAQ | ALGN | Tue, Feb 8, 2011 | 20.96 | 21.40 | 20.77 | 21.26 | 2521 | NASDAQ | ALGN | Mon, Feb 7, 2011 | 21.25 | 21.47 | 20.32 | 21.00 | 2520 | NASDAQ | ALGN | Fri, Feb 4, 2011 | 21.97 | 22.15 | 21.65 | 21.86 | 2519 | NASDAQ | ALGN | Thu, Feb 3, 2011 | 21.89 | 22.24 | 21.73 | 22.05 | 2518 | NASDAQ | ALGN | Wed, Feb 2, 2011 | 21.24 | 22.24 | 21.24 | 21.95 | 2517 | NASDAQ | ALGN | Tue, Feb 1, 2011 | 20.51 | 21.39 | 20.51 | 21.38 | 2516 | NASDAQ | ALGN | Mon, Jan 31, 2011 | 20.30 | 21.00 | 20.29 | 20.83 | 2515 | NASDAQ | ALGN | Fri, Jan 28, 2011 | 20.85 | 20.92 | 20.31 | 20.35 | 2514 | NASDAQ | ALGN | Thu, Jan 27, 2011 | 19.94 | 21.20 | 19.41 | 20.90 | 2513 | NASDAQ | ALGN | Wed, Jan 26, 2011 | 19.93 | 20.51 | 19.73 | 20.51 | 2512 | NASDAQ | ALGN | Tue, Jan 25, 2011 | 19.79 | 20.03 | 19.72 | 19.92 | 2511 | NASDAQ | ALGN | Mon, Jan 24, 2011 | 19.94 | 20.41 | 19.87 | 19.95 | 2510 | NASDAQ | ALGN | Fri, Jan 21, 2011 | 20.37 | 20.37 | 19.87 | 19.87 | 2509 | NASDAQ | ALGN | Thu, Jan 20, 2011 | 20.42 | 20.58 | 20.05 | 20.29 | 2508 | NASDAQ | ALGN | Wed, Jan 19, 2011 | 20.77 | 20.89 | 20.40 | 20.52 | 2507 | NASDAQ | ALGN | Tue, Jan 18, 2011 | 20.40 | 20.85 | 20.20 | 20.82 | 2506 | NASDAQ | ALGN | Fri, Jan 14, 2011 | 20.50 | 20.57 | 20.35 | 20.50 | 2505 | NASDAQ | ALGN | Thu, Jan 13, 2011 | 20.38 | 20.60 | 20.31 | 20.56 | 2504 | NASDAQ | ALGN | Wed, Jan 12, 2011 | 20.50 | 20.80 | 20.36 | 20.42 | 2503 | NASDAQ | ALGN | Tue, Jan 11, 2011 | 20.25 | 20.46 | 20.02 | 20.30 | 2502 | NASDAQ | ALGN | Mon, Jan 10, 2011 | 19.95 | 20.29 | 19.62 | 20.20 | 2501 | NASDAQ | ALGN | Fri, Jan 7, 2011 | 19.54 | 20.14 | 19.30 | 20.00 | 2500 | NASDAQ | ALGN | Thu, Jan 6, 2011 | 19.83 | 20.00 | 19.44 | 19.59 | 2499 | NASDAQ | ALGN | Wed, Jan 5, 2011 | 19.45 | 20.10 | 19.34 | 19.83 | 2498 | NASDAQ | ALGN | Tue, Jan 4, 2011 | 20.00 | 20.12 | 19.23 | 19.50 | 2497 | NASDAQ | ALGN | Mon, Jan 3, 2011 | 19.75 | 20.27 | 19.62 | 19.87 | 2496 | NASDAQ | ALGN | Fri, Dec 31, 2010 | 20.04 | 20.24 | 19.50 | 19.54 | 2495 | NASDAQ | ALGN | Thu, Dec 30, 2010 | 19.91 | 20.24 | 19.91 | 20.02 | 2494 | NASDAQ | ALGN | Wed, Dec 29, 2010 | 20.13 | 20.21 | 19.90 | 19.96 | 2493 | NASDAQ | ALGN | Tue, Dec 28, 2010 | 20.11 | 20.17 | 19.42 | 20.13 | 2492 | NASDAQ | ALGN | Mon, Dec 27, 2010 | 20.12 | 20.23 | 19.96 | 20.12 | 2491 | NASDAQ | ALGN | Thu, Dec 23, 2010 | 20.38 | 20.47 | 20.19 | 20.24 | 2490 | NASDAQ | ALGN | Wed, Dec 22, 2010 | 20.29 | 20.62 | 20.15 | 20.37 | 2489 | NASDAQ | ALGN | Tue, Dec 21, 2010 | 20.14 | 20.61 | 19.89 | 20.28 | 2488 | NASDAQ | ALGN | Mon, Dec 20, 2010 | 20.30 | 20.65 | 19.97 | 20.07 | 2487 | NASDAQ | ALGN | Fri, Dec 17, 2010 | 19.40 | 20.16 | 19.20 | 20.11 | 2486 | NASDAQ | ALGN | Thu, Dec 16, 2010 | 18.81 | 19.43 | 18.65 | 19.42 | 2485 | NASDAQ | ALGN | Wed, Dec 15, 2010 | 18.73 | 19.14 | 18.69 | 18.79 | 2484 | NASDAQ | ALGN | Tue, Dec 14, 2010 | 18.62 | 18.94 | 18.58 | 18.71 | 2483 | NASDAQ | ALGN | Mon, Dec 13, 2010 | 18.77 | 18.77 | 18.50 | 18.52 | 2482 | NASDAQ | ALGN | Fri, Dec 10, 2010 | 18.45 | 18.79 | 18.33 | 18.67 | 2481 | NASDAQ | ALGN | Thu, Dec 9, 2010 | 18.31 | 18.53 | 18.20 | 18.39 | 2480 | NASDAQ | ALGN | Wed, Dec 8, 2010 | 17.83 | 18.34 | 17.63 | 18.10 | 2479 | NASDAQ | ALGN | Tue, Dec 7, 2010 | 17.98 | 18.19 | 17.72 | 17.81 | 2478 | NASDAQ | ALGN | Mon, Dec 6, 2010 | 17.68 | 17.98 | 17.63 | 17.77 | 2477 | NASDAQ | ALGN | Fri, Dec 3, 2010 | 17.45 | 17.72 | 17.18 | 17.62 | 2476 | NASDAQ | ALGN | Thu, Dec 2, 2010 | 17.94 | 18.03 | 17.43 | 17.50 | 2475 | NASDAQ | ALGN | Wed, Dec 1, 2010 | 17.84 | 18.32 | 17.70 | 17.97 | 2474 | NASDAQ | ALGN | Tue, Nov 30, 2010 | 17.36 | 17.84 | 16.73 | 17.49 | 2473 | NASDAQ | ALGN | Mon, Nov 29, 2010 | 17.44 | 17.73 | 17.29 | 17.60 | 2472 | NASDAQ | ALGN | Fri, Nov 26, 2010 | 17.67 | 18.04 | 17.50 | 17.57 | 2471 | NASDAQ | ALGN | Wed, Nov 24, 2010 | 17.58 | 17.85 | 17.52 | 17.85 | 2470 | NASDAQ | ALGN | Tue, Nov 23, 2010 | 17.12 | 17.54 | 17.01 | 17.45 | 2469 | NASDAQ | ALGN | Mon, Nov 22, 2010 | 17.37 | 17.64 | 17.12 | 17.40 | 2468 | NASDAQ | ALGN | Fri, Nov 19, 2010 | 17.91 | 18.16 | 17.47 | 17.50 | 2467 | NASDAQ | ALGN | Thu, Nov 18, 2010 | 17.91 | 18.20 | 17.80 | 17.91 | 2466 | NASDAQ | ALGN | Wed, Nov 17, 2010 | 17.99 | 18.00 | 17.63 | 17.68 | 2465 | NASDAQ | ALGN | Tue, Nov 16, 2010 | 18.13 | 18.29 | 17.71 | 17.88 | 2464 | NASDAQ | ALGN | Mon, Nov 15, 2010 | 18.35 | 18.46 | 18.07 | 18.27 | 2463 | NASDAQ | ALGN | Fri, Nov 12, 2010 | 18.31 | 18.56 | 18.20 | 18.31 | 2462 | NASDAQ | ALGN | Thu, Nov 11, 2010 | 18.20 | 18.54 | 18.19 | 18.50 | 2461 | NASDAQ | ALGN | Wed, Nov 10, 2010 | 18.33 | 18.43 | 18.11 | 18.43 | 2460 | NASDAQ | ALGN | Tue, Nov 9, 2010 | 18.24 | 18.36 | 18.03 | 18.25 | 2459 | NASDAQ | ALGN | Mon, Nov 8, 2010 | 18.50 | 18.55 | 18.14 | 18.24 | 2458 | NASDAQ | ALGN | Fri, Nov 5, 2010 | 17.80 | 18.67 | 17.73 | 18.50 | 2457 | NASDAQ | ALGN | Thu, Nov 4, 2010 | 17.58 | 17.90 | 17.45 | 17.80 | 2456 | NASDAQ | ALGN | Wed, Nov 3, 2010 | 17.33 | 17.41 | 17.00 | 17.40 | 2455 | NASDAQ | ALGN | Tue, Nov 2, 2010 | 17.20 | 17.46 | 16.65 | 17.36 | 2454 | NASDAQ | ALGN | Mon, Nov 1, 2010 | 17.02 | 17.45 | 17.00 | 17.15 | 2453 | NASDAQ | ALGN | Fri, Oct 29, 2010 | 16.98 | 17.17 | 16.91 | 17.02 | 2452 | NASDAQ | ALGN | Thu, Oct 28, 2010 | 16.96 | 17.29 | 16.30 | 17.06 | 2451 | NASDAQ | ALGN | Wed, Oct 27, 2010 | 16.50 | 16.97 | 16.35 | 16.89 | 2450 | NASDAQ | ALGN | Tue, Oct 26, 2010 | 16.90 | 17.06 | 16.25 | 16.65 | 2449 | NASDAQ | ALGN | Mon, Oct 25, 2010 | 18.12 | 18.12 | 17.42 | 17.48 | 2448 | NASDAQ | ALGN | Fri, Oct 22, 2010 | 18.14 | 18.42 | 17.50 | 18.13 | 2447 | NASDAQ | ALGN | Thu, Oct 21, 2010 | 21.24 | 21.40 | 20.23 | 20.71 | 2446 | NASDAQ | ALGN | Wed, Oct 20, 2010 | 20.43 | 21.29 | 20.33 | 21.08 | 2445 | NASDAQ | ALGN | Tue, Oct 19, 2010 | 20.70 | 20.89 | 20.08 | 20.31 | 2444 | NASDAQ | ALGN | Mon, Oct 18, 2010 | 20.49 | 21.05 | 20.48 | 21.00 | 2443 | NASDAQ | ALGN | Fri, Oct 15, 2010 | 20.95 | 20.95 | 20.43 | 20.48 | 2442 | NASDAQ | ALGN | Thu, Oct 14, 2010 | 20.58 | 20.97 | 20.55 | 20.68 | 2441 | NASDAQ | ALGN | Wed, Oct 13, 2010 | 20.10 | 20.61 | 20.04 | 20.50 | 2440 | NASDAQ | ALGN | Tue, Oct 12, 2010 | 19.60 | 19.96 | 19.41 | 19.88 | 2439 | NASDAQ | ALGN | Mon, Oct 11, 2010 | 19.60 | 19.81 | 19.54 | 19.57 | 2438 | NASDAQ | ALGN | Fri, Oct 8, 2010 | 19.78 | 19.80 | 19.41 | 19.63 | 2437 | NASDAQ | ALGN | Thu, Oct 7, 2010 | 19.76 | 19.90 | 19.50 | 19.83 | 2436 | NASDAQ | ALGN | Wed, Oct 6, 2010 | 19.52 | 19.76 | 19.47 | 19.69 | 2435 | NASDAQ | ALGN | Tue, Oct 5, 2010 | 19.48 | 19.59 | 19.22 | 19.50 | 2434 | NASDAQ | ALGN | Mon, Oct 4, 2010 | 19.54 | 19.60 | 19.24 | 19.32 | 2433 | NASDAQ | ALGN | Fri, Oct 1, 2010 | 19.77 | 19.86 | 19.37 | 19.65 | 2432 | NASDAQ | ALGN | Thu, Sep 30, 2010 | 19.95 | 19.95 | 19.30 | 19.58 | 2431 | NASDAQ | ALGN | Wed, Sep 29, 2010 | 19.59 | 19.94 | 19.52 | 19.85 | 2430 | NASDAQ | ALGN | Tue, Sep 28, 2010 | 19.72 | 19.79 | 19.25 | 19.73 | 2429 | NASDAQ | ALGN | Mon, Sep 27, 2010 | 19.72 | 19.87 | 19.43 | 19.75 | 2428 | NASDAQ | ALGN | Fri, Sep 24, 2010 | 19.13 | 19.66 | 19.06 | 19.66 | 2427 | NASDAQ | ALGN | Thu, Sep 23, 2010 | 19.14 | 19.42 | 18.83 | 18.90 | 2426 | NASDAQ | ALGN | Wed, Sep 22, 2010 | 19.43 | 19.70 | 18.95 | 19.29 | 2425 | NASDAQ | ALGN | Tue, Sep 21, 2010 | 19.85 | 19.93 | 19.48 | 19.58 | 2424 | NASDAQ | ALGN | Mon, Sep 20, 2010 | 19.34 | 19.95 | 19.29 | 19.89 | 2423 | NASDAQ | ALGN | Fri, Sep 17, 2010 | 19.07 | 19.38 | 18.79 | 19.29 | 2422 | NASDAQ | ALGN | Thu, Sep 16, 2010 | 18.85 | 19.00 | 18.60 | 18.92 | 2421 | NASDAQ | ALGN | Wed, Sep 15, 2010 | 18.35 | 18.95 | 18.25 | 18.93 | 2420 | NASDAQ | ALGN | Tue, Sep 14, 2010 | 18.64 | 18.82 | 18.37 | 18.42 | 2419 | NASDAQ | ALGN | Mon, Sep 13, 2010 | 17.85 | 18.95 | 17.74 | 18.68 | 2418 | NASDAQ | ALGN | Fri, Sep 10, 2010 | 17.11 | 17.92 | 16.97 | 17.82 | 2417 | NASDAQ | ALGN | Thu, Sep 9, 2010 | 17.12 | 17.17 | 16.79 | 17.05 | 2416 | NASDAQ | ALGN | Wed, Sep 8, 2010 | 16.72 | 17.13 | 16.50 | 16.96 | 2415 | NASDAQ | ALGN | Tue, Sep 7, 2010 | 17.19 | 17.23 | 16.64 | 16.65 | 2414 | NASDAQ | ALGN | Fri, Sep 3, 2010 | 17.41 | 17.85 | 17.10 | 17.22 | 2413 | NASDAQ | ALGN | Thu, Sep 2, 2010 | 16.87 | 17.29 | 16.68 | 17.26 | 2412 | NASDAQ | ALGN | Wed, Sep 1, 2010 | 16.24 | 17.04 | 16.17 | 16.95 | 2411 | NASDAQ | ALGN | Tue, Aug 31, 2010 | 15.72 | 16.44 | 15.72 | 15.99 | 2410 | NASDAQ | ALGN | Mon, Aug 30, 2010 | 16.20 | 16.35 | 15.80 | 15.80 | 2409 | NASDAQ | ALGN | Fri, Aug 27, 2010 | 16.40 | 16.40 | 15.98 | 16.30 | 2408 | NASDAQ | ALGN | Thu, Aug 26, 2010 | 16.29 | 16.51 | 16.13 | 16.24 | 2407 | NASDAQ | ALGN | Wed, Aug 25, 2010 | 16.04 | 16.36 | 15.75 | 16.29 | 2406 | NASDAQ | ALGN | Tue, Aug 24, 2010 | 16.39 | 16.69 | 15.71 | 16.21 | 2405 | NASDAQ | ALGN | Mon, Aug 23, 2010 | 17.26 | 17.26 | 16.39 | 16.64 | 2404 | NASDAQ | ALGN | Fri, Aug 20, 2010 | 17.23 | 17.42 | 16.90 | 17.24 | 2403 | NASDAQ | ALGN | Thu, Aug 19, 2010 | 17.42 | 17.55 | 16.95 | 17.32 | 2402 | NASDAQ | ALGN | Wed, Aug 18, 2010 | 17.61 | 17.89 | 17.42 | 17.55 | 2401 | NASDAQ | ALGN | Tue, Aug 17, 2010 | 17.33 | 17.72 | 17.00 | 17.65 | 2400 | NASDAQ | ALGN | Mon, Aug 16, 2010 | 16.92 | 17.30 | 16.83 | 17.15 | 2399 | NASDAQ | ALGN | Fri, Aug 13, 2010 | 17.22 | 17.41 | 16.90 | 17.00 | 2398 | NASDAQ | ALGN | Thu, Aug 12, 2010 | 16.93 | 17.41 | 16.53 | 17.33 | 2397 | NASDAQ | ALGN | Wed, Aug 11, 2010 | 17.65 | 17.65 | 16.86 | 17.21 | 2396 | NASDAQ | ALGN | Tue, Aug 10, 2010 | 17.91 | 18.25 | 17.70 | 17.96 | 2395 | NASDAQ | ALGN | Mon, Aug 9, 2010 | 17.97 | 18.28 | 17.73 | 18.11 | 2394 | NASDAQ | ALGN | Fri, Aug 6, 2010 | 17.50 | 17.92 | 17.05 | 17.83 | 2393 | NASDAQ | ALGN | Thu, Aug 5, 2010 | 17.61 | 17.76 | 17.33 | 17.65 | 2392 | NASDAQ | ALGN | Wed, Aug 4, 2010 | 17.82 | 17.97 | 17.37 | 17.76 | 2391 | NASDAQ | ALGN | Tue, Aug 3, 2010 | 17.79 | 17.92 | 17.42 | 17.79 | 2390 | NASDAQ | ALGN | Mon, Aug 2, 2010 | 17.47 | 18.02 | 17.47 | 17.90 | 2389 | NASDAQ | ALGN | Fri, Jul 30, 2010 | 17.25 | 17.67 | 17.19 | 17.35 | 2388 | NASDAQ | ALGN | Thu, Jul 29, 2010 | 17.42 | 17.49 | 17.08 | 17.47 | 2387 | NASDAQ | ALGN | Wed, Jul 28, 2010 | 17.89 | 18.23 | 17.24 | 17.37 | 2386 | NASDAQ | ALGN | Tue, Jul 27, 2010 | 18.35 | 18.50 | 17.81 | 18.05 | 2385 | NASDAQ | ALGN | Mon, Jul 26, 2010 | 17.17 | 18.46 | 17.13 | 18.35 | 2384 | NASDAQ | ALGN | Fri, Jul 23, 2010 | 17.26 | 17.50 | 15.86 | 17.12 | 2383 | NASDAQ | ALGN | Thu, Jul 22, 2010 | 14.61 | 15.27 | 14.55 | 14.83 | 2382 | NASDAQ | ALGN | Wed, Jul 21, 2010 | 14.49 | 14.69 | 14.28 | 14.49 | 2381 | NASDAQ | ALGN | Tue, Jul 20, 2010 | 14.13 | 14.51 | 14.00 | 14.44 | 2380 | NASDAQ | ALGN | Mon, Jul 19, 2010 | 14.60 | 14.74 | 14.19 | 14.29 | 2379 | NASDAQ | ALGN | Fri, Jul 16, 2010 | 15.12 | 15.12 | 14.46 | 14.57 | 2378 | NASDAQ | ALGN | Thu, Jul 15, 2010 | 15.62 | 15.68 | 15.05 | 15.27 | 2377 | NASDAQ | ALGN | Wed, Jul 14, 2010 | 15.07 | 16.38 | 15.07 | 15.62 | 2376 | NASDAQ | ALGN | Tue, Jul 13, 2010 | 14.45 | 14.87 | 14.42 | 14.84 | 2375 | NASDAQ | ALGN | Mon, Jul 12, 2010 | 14.36 | 14.58 | 14.20 | 14.27 | 2374 | NASDAQ | ALGN | Fri, Jul 9, 2010 | 14.82 | 14.82 | 14.25 | 14.44 | 2373 | NASDAQ | ALGN | Thu, Jul 8, 2010 | 14.97 | 15.16 | 14.69 | 14.88 | 2372 | NASDAQ | ALGN | Wed, Jul 7, 2010 | 14.21 | 14.92 | 14.14 | 14.88 | 2371 | NASDAQ | ALGN | Tue, Jul 6, 2010 | 14.37 | 14.60 | 14.01 | 14.10 | 2370 | NASDAQ | ALGN | Fri, Jul 2, 2010 | 14.39 | 14.45 | 13.97 | 14.20 | 2369 | NASDAQ | ALGN | Thu, Jul 1, 2010 | 14.89 | 14.89 | 13.90 | 14.30 | 2368 | NASDAQ | ALGN | Wed, Jun 30, 2010 | 14.95 | 15.17 | 14.78 | 14.87 | 2367 | NASDAQ | ALGN | Tue, Jun 29, 2010 | 14.78 | 14.97 | 14.01 | 14.91 | 2366 | NASDAQ | ALGN | Mon, Jun 28, 2010 | 15.00 | 15.10 | 14.93 | 15.00 | 2365 | NASDAQ | ALGN | Fri, Jun 25, 2010 | 14.50 | 15.00 | 14.41 | 14.96 | 2364 | NASDAQ | ALGN | Thu, Jun 24, 2010 | 14.68 | 14.81 | 14.44 | 14.49 | 2363 | NASDAQ | ALGN | Wed, Jun 23, 2010 | 14.96 | 14.96 | 14.35 | 14.75 | 2362 | NASDAQ | ALGN | Tue, Jun 22, 2010 | 15.28 | 15.37 | 14.85 | 14.96 | 2361 | NASDAQ | ALGN | Mon, Jun 21, 2010 | 14.94 | 15.34 | 14.87 | 15.20 | 2360 | NASDAQ | ALGN | Fri, Jun 18, 2010 | 14.97 | 14.97 | 14.69 | 14.75 | 2359 | NASDAQ | ALGN | Thu, Jun 17, 2010 | 14.86 | 15.02 | 14.71 | 14.88 | 2358 | NASDAQ | ALGN | Wed, Jun 16, 2010 | 14.90 | 15.02 | 14.69 | 14.85 | 2357 | NASDAQ | ALGN | Tue, Jun 15, 2010 | 14.87 | 15.03 | 14.80 | 15.00 | 2356 | NASDAQ | ALGN | Mon, Jun 14, 2010 | 14.60 | 15.23 | 14.60 | 14.81 | 2355 | NASDAQ | ALGN | Fri, Jun 11, 2010 | 13.61 | 14.56 | 13.43 | 14.54 | 2354 | NASDAQ | ALGN | Thu, Jun 10, 2010 | 13.49 | 13.98 | 13.33 | 13.70 | 2353 | NASDAQ | ALGN | Wed, Jun 9, 2010 | 13.60 | 13.80 | 13.18 | 13.27 | 2352 | NASDAQ | ALGN | Tue, Jun 8, 2010 | 14.19 | 14.19 | 13.44 | 13.51 | 2351 | NASDAQ | ALGN | Mon, Jun 7, 2010 | 13.86 | 14.41 | 13.84 | 14.19 | 2350 | NASDAQ | ALGN | Fri, Jun 4, 2010 | 14.00 | 14.05 | 13.38 | 13.79 | 2349 | NASDAQ | ALGN | Thu, Jun 3, 2010 | 14.87 | 15.08 | 14.25 | 14.43 | 2348 | NASDAQ | ALGN | Wed, Jun 2, 2010 | 14.42 | 14.79 | 14.31 | 14.77 | 2347 | NASDAQ | ALGN | Tue, Jun 1, 2010 | 14.85 | 14.85 | 14.21 | 14.38 | 2346 | NASDAQ | ALGN | Fri, May 28, 2010 | 15.18 | 15.23 | 14.88 | 14.92 | 2345 | NASDAQ | ALGN | Thu, May 27, 2010 | 15.02 | 15.22 | 14.87 | 15.19 | 2344 | NASDAQ | ALGN | Wed, May 26, 2010 | 15.29 | 15.45 | 14.73 | 14.75 | 2343 | NASDAQ | ALGN | Tue, May 25, 2010 | 15.54 | 15.61 | 14.87 | 15.25 | 2342 | NASDAQ | ALGN | Mon, May 24, 2010 | 15.81 | 16.22 | 15.81 | 15.84 | 2341 | NASDAQ | ALGN | Fri, May 21, 2010 | 15.77 | 16.12 | 15.50 | 15.86 | 2340 | NASDAQ | ALGN | Thu, May 20, 2010 | 16.63 | 16.64 | 15.80 | 16.01 | 2339 | NASDAQ | ALGN | Wed, May 19, 2010 | 17.21 | 17.37 | 16.67 | 16.91 | 2338 | NASDAQ | ALGN | Tue, May 18, 2010 | 17.31 | 17.91 | 17.22 | 17.30 | 2337 | NASDAQ | ALGN | Mon, May 17, 2010 | 17.01 | 17.37 | 16.94 | 17.31 | 2336 | NASDAQ | ALGN | Fri, May 14, 2010 | 17.17 | 17.17 | 16.62 | 17.02 | 2335 | NASDAQ | ALGN | Thu, May 13, 2010 | 17.37 | 17.48 | 17.17 | 17.31 | 2334 | NASDAQ | ALGN | Wed, May 12, 2010 | 17.17 | 17.46 | 17.09 | 17.46 | 2333 | NASDAQ | ALGN | Tue, May 11, 2010 | 17.07 | 17.40 | 17.00 | 17.17 | 2332 | NASDAQ | ALGN | Mon, May 10, 2010 | 17.03 | 17.46 | 17.03 | 17.26 | 2331 | NASDAQ | ALGN | Fri, May 7, 2010 | 17.11 | 17.11 | 16.36 | 16.52 | 2330 | NASDAQ | ALGN | Thu, May 6, 2010 | 16.99 | 17.58 | 16.57 | 17.26 | 2329 | NASDAQ | ALGN | Wed, May 5, 2010 | 17.45 | 17.59 | 17.25 | 17.49 | 2328 | NASDAQ | ALGN | Tue, May 4, 2010 | 17.27 | 17.53 | 16.93 | 17.53 | 2327 | NASDAQ | ALGN | Mon, May 3, 2010 | 17.00 | 17.59 | 16.93 | 17.40 | 2326 | NASDAQ | ALGN | Fri, Apr 30, 2010 | 17.89 | 17.93 | 16.89 | 17.00 | 2325 | NASDAQ | ALGN | Thu, Apr 29, 2010 | 16.70 | 18.20 | 16.58 | 17.93 | 2324 | NASDAQ | ALGN | Wed, Apr 28, 2010 | 17.12 | 17.16 | 16.51 | 16.56 | 2323 | NASDAQ | ALGN | Tue, Apr 27, 2010 | 17.04 | 17.13 | 16.73 | 17.00 | 2322 | NASDAQ | ALGN | Mon, Apr 26, 2010 | 16.92 | 17.25 | 16.50 | 17.14 | 2321 | NASDAQ | ALGN | Fri, Apr 23, 2010 | 17.74 | 17.79 | 16.42 | 16.88 | 2320 | NASDAQ | ALGN | Thu, Apr 22, 2010 | 19.42 | 19.42 | 17.18 | 17.62 | 2319 | NASDAQ | ALGN | Wed, Apr 21, 2010 | 18.78 | 18.89 | 18.51 | 18.80 | 2318 | NASDAQ | ALGN | Tue, Apr 20, 2010 | 18.66 | 18.82 | 18.47 | 18.82 | 2317 | NASDAQ | ALGN | Mon, Apr 19, 2010 | 18.59 | 18.66 | 18.07 | 18.63 | 2316 | NASDAQ | ALGN | Fri, Apr 16, 2010 | 18.65 | 18.90 | 18.04 | 18.70 | 2315 | NASDAQ | ALGN | Thu, Apr 15, 2010 | 18.49 | 18.77 | 18.29 | 18.67 | 2314 | NASDAQ | ALGN | Wed, Apr 14, 2010 | 18.22 | 18.38 | 17.93 | 18.34 | 2313 | NASDAQ | ALGN | Tue, Apr 13, 2010 | 17.71 | 18.18 | 17.69 | 18.09 | 2312 | NASDAQ | ALGN | Mon, Apr 12, 2010 | 17.62 | 17.89 | 17.52 | 17.70 | 2311 | NASDAQ | ALGN | Fri, Apr 9, 2010 | 17.54 | 18.13 | 17.33 | 17.57 | 2310 | NASDAQ | ALGN | Thu, Apr 8, 2010 | 18.10 | 18.15 | 17.48 | 17.49 | 2309 | NASDAQ | ALGN | Wed, Apr 7, 2010 | 18.37 | 18.89 | 17.96 | 18.17 | 2308 | NASDAQ | ALGN | Tue, Apr 6, 2010 | 19.90 | 20.03 | 18.18 | 18.44 | 2307 | NASDAQ | ALGN | Mon, Apr 5, 2010 | 19.58 | 20.56 | 19.46 | 20.44 | 2306 | NASDAQ | ALGN | Thu, Apr 1, 2010 | 19.44 | 19.79 | 19.34 | 19.58 | 2305 | NASDAQ | ALGN | Wed, Mar 31, 2010 | 19.50 | 19.85 | 19.30 | 19.34 | 2304 | NASDAQ | ALGN | Tue, Mar 30, 2010 | 19.55 | 19.94 | 19.41 | 19.51 | 2303 | NASDAQ | ALGN | Mon, Mar 29, 2010 | 19.56 | 19.65 | 19.31 | 19.52 | 2302 | NASDAQ | ALGN | Fri, Mar 26, 2010 | 19.45 | 19.88 | 19.30 | 19.46 | 2301 | NASDAQ | ALGN | Thu, Mar 25, 2010 | 19.72 | 20.00 | 19.35 | 19.35 | 2300 | NASDAQ | ALGN | Wed, Mar 24, 2010 | 19.80 | 19.98 | 19.48 | 19.66 | 2299 | NASDAQ | ALGN | Tue, Mar 23, 2010 | 19.65 | 19.90 | 19.54 | 19.89 | 2298 | NASDAQ | ALGN | Mon, Mar 22, 2010 | 19.03 | 19.91 | 19.03 | 19.61 | 2297 | NASDAQ | ALGN | Fri, Mar 19, 2010 | 19.34 | 19.34 | 19.04 | 19.16 | 2296 | NASDAQ | ALGN | Thu, Mar 18, 2010 | 19.34 | 19.44 | 19.07 | 19.20 | 2295 | NASDAQ | ALGN | Wed, Mar 17, 2010 | 18.99 | 19.58 | 18.81 | 19.32 | 2294 | NASDAQ | ALGN | Tue, Mar 16, 2010 | 18.62 | 19.13 | 18.37 | 18.90 | 2293 | NASDAQ | ALGN | Mon, Mar 15, 2010 | 19.05 | 19.06 | 18.12 | 18.54 | 2292 | NASDAQ | ALGN | Fri, Mar 12, 2010 | 19.50 | 19.53 | 19.09 | 19.18 | 2291 | NASDAQ | ALGN | Thu, Mar 11, 2010 | 19.39 | 19.51 | 19.25 | 19.43 | 2290 | NASDAQ | ALGN | Wed, Mar 10, 2010 | 19.43 | 19.71 | 19.35 | 19.47 | 2289 | NASDAQ | ALGN | Tue, Mar 9, 2010 | 19.20 | 19.60 | 19.08 | 19.44 | 2288 | NASDAQ | ALGN | Mon, Mar 8, 2010 | 19.17 | 19.43 | 19.08 | 19.27 | 2287 | NASDAQ | ALGN | Fri, Mar 5, 2010 | 18.84 | 19.34 | 18.80 | 19.17 | 2286 | NASDAQ | ALGN | Thu, Mar 4, 2010 | 18.74 | 18.87 | 18.60 | 18.83 | 2285 | NASDAQ | ALGN | Wed, Mar 3, 2010 | 19.08 | 19.08 | 18.60 | 18.75 | 2284 | NASDAQ | ALGN | Tue, Mar 2, 2010 | 18.77 | 19.01 | 18.58 | 18.96 | 2283 | NASDAQ | ALGN | Mon, Mar 1, 2010 | 18.16 | 18.78 | 18.08 | 18.78 | 2282 | NASDAQ | ALGN | Fri, Feb 26, 2010 | 17.84 | 18.20 | 17.84 | 18.10 | 2281 | NASDAQ | ALGN | Thu, Feb 25, 2010 | 17.55 | 18.16 | 17.40 | 18.12 | 2280 | NASDAQ | ALGN | Wed, Feb 24, 2010 | 17.88 | 18.25 | 17.87 | 18.00 | 2279 | NASDAQ | ALGN | Tue, Feb 23, 2010 | 17.20 | 18.00 | 17.17 | 17.92 | 2278 | NASDAQ | ALGN | Mon, Feb 22, 2010 | 17.89 | 18.00 | 17.67 | 17.92 | 2277 | NASDAQ | ALGN | Fri, Feb 19, 2010 | 18.00 | 18.02 | 17.90 | 17.94 | 2276 | NASDAQ | ALGN | Thu, Feb 18, 2010 | 17.85 | 18.00 | 17.81 | 17.99 | 2275 | NASDAQ | ALGN | Wed, Feb 17, 2010 | 18.00 | 18.00 | 17.83 | 17.92 | 2274 | NASDAQ | ALGN | Tue, Feb 16, 2010 | 17.70 | 17.95 | 17.40 | 17.95 | 2273 | NASDAQ | ALGN | Fri, Feb 12, 2010 | 17.30 | 17.54 | 17.22 | 17.53 | 2272 | NASDAQ | ALGN | Thu, Feb 11, 2010 | 17.25 | 17.74 | 17.18 | 17.45 | 2271 | NASDAQ | ALGN | Wed, Feb 10, 2010 | 17.07 | 17.30 | 16.93 | 17.26 | 2270 | NASDAQ | ALGN | Tue, Feb 9, 2010 | 17.50 | 17.60 | 17.09 | 17.20 | 2269 | NASDAQ | ALGN | Mon, Feb 8, 2010 | 17.62 | 17.81 | 17.25 | 17.28 | 2268 | NASDAQ | ALGN | Fri, Feb 5, 2010 | 17.49 | 17.86 | 17.27 | 17.68 | 2267 | NASDAQ | ALGN | Thu, Feb 4, 2010 | 17.94 | 17.94 | 17.33 | 17.49 | 2266 | NASDAQ | ALGN | Wed, Feb 3, 2010 | 18.10 | 18.48 | 17.83 | 18.11 | 2265 | NASDAQ | ALGN | Tue, Feb 2, 2010 | 18.00 | 18.52 | 17.97 | 18.12 | 2264 | NASDAQ | ALGN | Mon, Feb 1, 2010 | 18.73 | 18.75 | 18.50 | 18.58 | 2263 | NASDAQ | ALGN | Fri, Jan 29, 2010 | 18.18 | 19.09 | 18.14 | 18.75 | 2262 | NASDAQ | ALGN | Thu, Jan 28, 2010 | 18.74 | 19.25 | 17.99 | 18.03 | 2261 | NASDAQ | ALGN | Wed, Jan 27, 2010 | 16.41 | 16.78 | 16.11 | 16.69 | 2260 | NASDAQ | ALGN | Tue, Jan 26, 2010 | 16.60 | 17.04 | 16.40 | 16.46 | 2259 | NASDAQ | ALGN | Mon, Jan 25, 2010 | 16.65 | 16.89 | 16.25 | 16.70 | 2258 | NASDAQ | ALGN | Fri, Jan 22, 2010 | 16.76 | 16.93 | 16.47 | 16.53 | 2257 | NASDAQ | ALGN | Thu, Jan 21, 2010 | 17.70 | 17.75 | 16.83 | 16.85 | 2256 | NASDAQ | ALGN | Wed, Jan 20, 2010 | 17.18 | 17.79 | 17.14 | 17.68 | 2255 | NASDAQ | ALGN | Tue, Jan 19, 2010 | 16.95 | 17.35 | 16.95 | 17.34 | 2254 | NASDAQ | ALGN | Fri, Jan 15, 2010 | 17.22 | 17.22 | 16.47 | 16.93 | 2253 | NASDAQ | ALGN | Thu, Jan 14, 2010 | 17.48 | 17.51 | 17.05 | 17.13 | 2252 | NASDAQ | ALGN | Wed, Jan 13, 2010 | 17.23 | 17.70 | 17.12 | 17.58 | 2251 | NASDAQ | ALGN | Tue, Jan 12, 2010 | 17.38 | 17.61 | 17.11 | 17.23 | 2250 | NASDAQ | ALGN | Mon, Jan 11, 2010 | 17.26 | 17.76 | 17.26 | 17.54 | 2249 | NASDAQ | ALGN | Fri, Jan 8, 2010 | 17.41 | 17.80 | 17.05 | 17.66 | 2248 | NASDAQ | ALGN | Thu, Jan 7, 2010 | 17.49 | 17.49 | 16.95 | 17.43 | 2247 | NASDAQ | ALGN | Wed, Jan 6, 2010 | 17.97 | 17.97 | 17.37 | 17.48 | 2246 | NASDAQ | ALGN | Tue, Jan 5, 2010 | 18.50 | 18.50 | 17.70 | 18.01 | 2245 | NASDAQ | ALGN | Mon, Jan 4, 2010 | 18.05 | 18.50 | 18.05 | 18.50 | 2244 | NASDAQ | ALGN | Thu, Dec 31, 2009 | 17.86 | 18.10 | 17.79 | 17.82 | 2243 | NASDAQ | ALGN | Wed, Dec 30, 2009 | 17.90 | 18.01 | 17.61 | 17.88 | 2242 | NASDAQ | ALGN | Tue, Dec 29, 2009 | 17.98 | 18.07 | 17.89 | 17.93 | 2241 | NASDAQ | ALGN | Mon, Dec 28, 2009 | 17.88 | 17.99 | 17.57 | 17.92 | 2240 | NASDAQ | ALGN | Thu, Dec 24, 2009 | 17.86 | 17.99 | 17.76 | 17.82 | 2239 | NASDAQ | ALGN | Wed, Dec 23, 2009 | 17.45 | 17.88 | 17.36 | 17.76 | 2238 | NASDAQ | ALGN | Tue, Dec 22, 2009 | 17.16 | 17.47 | 17.10 | 17.42 | 2237 | NASDAQ | ALGN | Mon, Dec 21, 2009 | 16.93 | 17.28 | 16.82 | 17.18 | 2236 | NASDAQ | ALGN | Fri, Dec 18, 2009 | 17.30 | 17.59 | 16.75 | 16.93 | 2235 | NASDAQ | ALGN | Thu, Dec 17, 2009 | 17.94 | 17.94 | 17.14 | 17.16 | 2234 | NASDAQ | ALGN | Wed, Dec 16, 2009 | 17.93 | 18.18 | 17.79 | 17.98 | 2233 | NASDAQ | ALGN | Tue, Dec 15, 2009 | 17.88 | 18.23 | 17.75 | 17.79 | 2232 | NASDAQ | ALGN | Mon, Dec 14, 2009 | 17.50 | 17.97 | 17.20 | 17.95 | 2231 | NASDAQ | ALGN | Fri, Dec 11, 2009 | 17.72 | 17.87 | 17.24 | 17.40 | 2230 | NASDAQ | ALGN | Thu, Dec 10, 2009 | 17.76 | 17.78 | 17.42 | 17.66 | 2229 | NASDAQ | ALGN | Wed, Dec 9, 2009 | 17.85 | 18.00 | 17.25 | 17.69 | 2228 | NASDAQ | ALGN | Tue, Dec 8, 2009 | 17.85 | 18.13 | 17.58 | 17.89 | 2227 | NASDAQ | ALGN | Mon, Dec 7, 2009 | 18.00 | 18.07 | 17.66 | 18.00 | 2226 | NASDAQ | ALGN | Fri, Dec 4, 2009 | 17.70 | 18.11 | 17.55 | 18.00 | 2225 | NASDAQ | ALGN | Thu, Dec 3, 2009 | 17.70 | 17.99 | 17.31 | 17.36 | 2224 | NASDAQ | ALGN | Wed, Dec 2, 2009 | 17.19 | 17.95 | 17.14 | 17.61 | 2223 | NASDAQ | ALGN | Tue, Dec 1, 2009 | 16.52 | 17.31 | 16.50 | 17.10 | 2222 | NASDAQ | ALGN | Mon, Nov 30, 2009 | 16.11 | 16.43 | 15.99 | 16.36 | 2221 | NASDAQ | ALGN | Fri, Nov 27, 2009 | 16.01 | 16.29 | 16.01 | 16.08 | 2220 | NASDAQ | ALGN | Wed, Nov 25, 2009 | 15.87 | 16.55 | 15.65 | 16.49 | 2219 | NASDAQ | ALGN | Tue, Nov 24, 2009 | 15.74 | 16.07 | 15.62 | 15.89 | 2218 | NASDAQ | ALGN | Mon, Nov 23, 2009 | 15.65 | 16.25 | 15.64 | 15.81 | 2217 | NASDAQ | ALGN | Fri, Nov 20, 2009 | 15.72 | 15.98 | 15.52 | 15.54 | 2216 | NASDAQ | ALGN | Thu, Nov 19, 2009 | 16.32 | 16.54 | 15.68 | 15.85 | 2215 | NASDAQ | ALGN | Wed, Nov 18, 2009 | 16.80 | 16.80 | 16.32 | 16.46 | 2214 | NASDAQ | ALGN | Tue, Nov 17, 2009 | 16.78 | 16.81 | 16.47 | 16.75 | 2213 | NASDAQ | ALGN | Mon, Nov 16, 2009 | 15.93 | 16.86 | 15.93 | 16.79 | 2212 | NASDAQ | ALGN | Fri, Nov 13, 2009 | 15.59 | 15.88 | 15.38 | 15.78 | 2211 | NASDAQ | ALGN | Thu, Nov 12, 2009 | 16.07 | 16.13 | 15.52 | 15.59 | 2210 | NASDAQ | ALGN | Wed, Nov 11, 2009 | 16.36 | 16.36 | 15.94 | 16.07 | 2209 | NASDAQ | ALGN | Tue, Nov 10, 2009 | 16.54 | 16.75 | 16.10 | 16.20 | 2208 | NASDAQ | ALGN | Mon, Nov 9, 2009 | 16.58 | 16.64 | 16.19 | 16.60 | 2207 | NASDAQ | ALGN | Fri, Nov 6, 2009 | 16.92 | 16.95 | 16.41 | 16.52 | 2206 | NASDAQ | ALGN | Thu, Nov 5, 2009 | 16.80 | 17.39 | 16.73 | 17.08 | 2205 | NASDAQ | ALGN | Wed, Nov 4, 2009 | 16.35 | 16.98 | 16.31 | 16.79 | 2204 | NASDAQ | ALGN | Tue, Nov 3, 2009 | 16.00 | 16.37 | 15.85 | 16.35 | 2203 | NASDAQ | ALGN | Mon, Nov 2, 2009 | 15.87 | 16.19 | 15.84 | 16.05 | 2202 | NASDAQ | ALGN | Fri, Oct 30, 2009 | 15.95 | 16.12 | 15.55 | 15.72 | 2201 | NASDAQ | ALGN | Thu, Oct 29, 2009 | 16.13 | 16.50 | 15.87 | 15.94 | 2200 | NASDAQ | ALGN | Wed, Oct 28, 2009 | 16.84 | 17.00 | 15.99 | 16.05 | 2199 | NASDAQ | ALGN | Tue, Oct 27, 2009 | 16.96 | 17.23 | 16.53 | 16.81 | 2198 | NASDAQ | ALGN | Mon, Oct 26, 2009 | 17.62 | 17.70 | 16.98 | 17.03 | 2197 | NASDAQ | ALGN | Fri, Oct 23, 2009 | 18.00 | 18.85 | 17.53 | 17.70 | 2196 | NASDAQ | ALGN | Thu, Oct 22, 2009 | 14.97 | 15.61 | 14.54 | 15.38 | 2195 | NASDAQ | ALGN | Wed, Oct 21, 2009 | 15.20 | 15.60 | 14.86 | 14.94 | 2194 | NASDAQ | ALGN | Tue, Oct 20, 2009 | 15.61 | 15.90 | 15.12 | 15.22 | 2193 | NASDAQ | ALGN | Mon, Oct 19, 2009 | 15.72 | 15.80 | 15.46 | 15.60 | 2192 | NASDAQ | ALGN | Fri, Oct 16, 2009 | 15.77 | 15.81 | 15.46 | 15.63 | 2191 | NASDAQ | ALGN | Thu, Oct 15, 2009 | 15.91 | 16.09 | 15.66 | 15.82 | 2190 | NASDAQ | ALGN | Wed, Oct 14, 2009 | 16.19 | 16.19 | 15.83 | 15.92 | 2189 | NASDAQ | ALGN | Tue, Oct 13, 2009 | 16.05 | 16.14 | 15.87 | 16.09 | 2188 | NASDAQ | ALGN | Mon, Oct 12, 2009 | 16.18 | 16.34 | 15.88 | 16.02 | 2187 | NASDAQ | ALGN | Fri, Oct 9, 2009 | 15.91 | 16.26 | 15.77 | 16.25 | 2186 | NASDAQ | ALGN | Thu, Oct 8, 2009 | 16.33 | 16.45 | 15.90 | 15.93 | 2185 | NASDAQ | ALGN | Wed, Oct 7, 2009 | 15.98 | 16.32 | 15.78 | 16.29 | 2184 | NASDAQ | ALGN | Tue, Oct 6, 2009 | 15.85 | 16.42 | 15.55 | 16.25 | 2183 | NASDAQ | ALGN | Mon, Oct 5, 2009 | 15.17 | 15.90 | 15.17 | 15.76 | 2182 | NASDAQ | ALGN | Fri, Oct 2, 2009 | 14.43 | 15.35 | 14.32 | 15.07 | 2181 | NASDAQ | ALGN | Thu, Oct 1, 2009 | 14.68 | 14.91 | 14.18 | 14.60 | 2180 | NASDAQ | ALGN | Wed, Sep 30, 2009 | 14.31 | 14.39 | 13.70 | 14.22 | 2179 | NASDAQ | ALGN | Tue, Sep 29, 2009 | 14.60 | 14.70 | 14.15 | 14.35 | 2178 | NASDAQ | ALGN | Mon, Sep 28, 2009 | 14.73 | 14.91 | 14.51 | 14.63 | 2177 | NASDAQ | ALGN | Fri, Sep 25, 2009 | 14.65 | 14.83 | 14.40 | 14.57 | 2176 | NASDAQ | ALGN | Thu, Sep 24, 2009 | 14.40 | 14.67 | 14.40 | 14.61 | 2175 | NASDAQ | ALGN | Wed, Sep 23, 2009 | 14.06 | 14.27 | 13.90 | 14.00 | 2174 | NASDAQ | ALGN | Tue, Sep 22, 2009 | 14.07 | 14.31 | 13.90 | 14.00 | 2173 | NASDAQ | ALGN | Mon, Sep 21, 2009 | 13.58 | 14.50 | 13.43 | 14.03 | 2172 | NASDAQ | ALGN | Fri, Sep 18, 2009 | 13.54 | 13.80 | 13.44 | 13.68 | 2171 | NASDAQ | ALGN | Thu, Sep 17, 2009 | 13.50 | 13.68 | 13.44 | 13.51 | 2170 | NASDAQ | ALGN | Wed, Sep 16, 2009 | 13.61 | 13.74 | 13.40 | 13.53 | 2169 | NASDAQ | ALGN | Tue, Sep 15, 2009 | 13.67 | 13.77 | 13.47 | 13.61 | 2168 | NASDAQ | ALGN | Mon, Sep 14, 2009 | 13.50 | 13.87 | 13.42 | 13.72 | 2167 | NASDAQ | ALGN | Fri, Sep 11, 2009 | 13.50 | 13.70 | 13.35 | 13.62 | 2166 | NASDAQ | ALGN | Thu, Sep 10, 2009 | 13.42 | 13.68 | 13.26 | 13.45 | 2165 | NASDAQ | ALGN | Wed, Sep 9, 2009 | 13.19 | 13.47 | 13.14 | 13.34 | 2164 | NASDAQ | ALGN | Tue, Sep 8, 2009 | 13.13 | 13.37 | 12.99 | 13.16 | 2163 | NASDAQ | ALGN | Fri, Sep 4, 2009 | 13.06 | 13.10 | 12.74 | 13.08 | 2162 | NASDAQ | ALGN | Thu, Sep 3, 2009 | 13.08 | 13.18 | 12.70 | 13.05 | 2161 | NASDAQ | ALGN | Wed, Sep 2, 2009 | 12.83 | 13.17 | 12.70 | 13.07 | 2160 | NASDAQ | ALGN | Tue, Sep 1, 2009 | 13.26 | 13.62 | 12.75 | 12.91 | 2159 | NASDAQ | ALGN | Mon, Aug 31, 2009 | 13.36 | 13.56 | 13.08 | 13.40 | 2158 | NASDAQ | ALGN | Fri, Aug 28, 2009 | 13.37 | 13.78 | 13.37 | 13.50 | 2157 | NASDAQ | ALGN | Thu, Aug 27, 2009 | 13.81 | 13.88 | 13.47 | 13.75 | 2156 | NASDAQ | ALGN | Wed, Aug 26, 2009 | 13.71 | 14.00 | 13.31 | 13.78 | 2155 | NASDAQ | ALGN | Tue, Aug 25, 2009 | 13.56 | 13.96 | 13.56 | 13.76 | 2154 | NASDAQ | ALGN | Mon, Aug 24, 2009 | 13.30 | 13.67 | 13.08 | 13.60 | 2153 | NASDAQ | ALGN | Fri, Aug 21, 2009 | 13.35 | 13.85 | 13.09 | 13.31 | 2152 | NASDAQ | ALGN | Thu, Aug 20, 2009 | 13.12 | 13.25 | 12.82 | 13.18 | 2151 | NASDAQ | ALGN | Wed, Aug 19, 2009 | 12.44 | 13.45 | 12.18 | 13.19 | 2150 | NASDAQ | ALGN | Tue, Aug 18, 2009 | 12.95 | 12.95 | 12.26 | 12.61 | 2149 | NASDAQ | ALGN | Mon, Aug 17, 2009 | 10.64 | 13.35 | 10.57 | 13.00 | 2148 | NASDAQ | ALGN | Fri, Aug 14, 2009 | 10.34 | 10.37 | 9.85 | 10.13 | 2147 | NASDAQ | ALGN | Thu, Aug 13, 2009 | 10.94 | 10.94 | 10.23 | 10.38 | 2146 | NASDAQ | ALGN | Wed, Aug 12, 2009 | 9.95 | 11.07 | 9.87 | 10.92 | 2145 | NASDAQ | ALGN | Tue, Aug 11, 2009 | 10.39 | 10.45 | 9.91 | 9.97 | 2144 | NASDAQ | ALGN | Mon, Aug 10, 2009 | 10.05 | 10.42 | 9.80 | 10.41 | 2143 | NASDAQ | ALGN | Fri, Aug 7, 2009 | 10.00 | 10.31 | 9.85 | 10.13 | 2142 | NASDAQ | ALGN | Thu, Aug 6, 2009 | 10.47 | 10.47 | 9.75 | 9.83 | 2141 | NASDAQ | ALGN | Wed, Aug 5, 2009 | 11.04 | 11.04 | 10.38 | 10.40 | 2140 | NASDAQ | ALGN | Tue, Aug 4, 2009 | 11.16 | 11.26 | 10.97 | 11.13 | 2139 | NASDAQ | ALGN | Mon, Aug 3, 2009 | 10.88 | 11.20 | 10.76 | 11.19 | 2138 | NASDAQ | ALGN | Fri, Jul 31, 2009 | 11.03 | 11.30 | 10.90 | 10.91 | 2137 | NASDAQ | ALGN | Thu, Jul 30, 2009 | 11.19 | 11.40 | 10.97 | 11.10 | 2136 | NASDAQ | ALGN | Wed, Jul 29, 2009 | 10.91 | 11.10 | 10.83 | 11.02 | 2135 | NASDAQ | ALGN | Tue, Jul 28, 2009 | 11.40 | 11.73 | 10.90 | 11.04 | 2134 | NASDAQ | ALGN | Mon, Jul 27, 2009 | 11.50 | 12.07 | 11.27 | 11.56 | 2133 | NASDAQ | ALGN | Fri, Jul 24, 2009 | 11.49 | 11.49 | 10.58 | 11.46 | 2132 | NASDAQ | ALGN | Thu, Jul 23, 2009 | 9.31 | 9.52 | 9.18 | 9.46 | 2131 | NASDAQ | ALGN | Wed, Jul 22, 2009 | 9.25 | 9.49 | 9.23 | 9.34 | 2130 | NASDAQ | ALGN | Tue, Jul 21, 2009 | 10.31 | 10.36 | 9.25 | 9.36 | 2129 | NASDAQ | ALGN | Mon, Jul 20, 2009 | 10.35 | 10.47 | 10.30 | 10.43 | 2128 | NASDAQ | ALGN | Fri, Jul 17, 2009 | 10.24 | 10.38 | 10.01 | 10.30 | 2127 | NASDAQ | ALGN | Thu, Jul 16, 2009 | 9.93 | 10.33 | 9.89 | 10.21 | 2126 | NASDAQ | ALGN | Wed, Jul 15, 2009 | 9.83 | 10.08 | 9.78 | 10.00 | 2125 | NASDAQ | ALGN | Tue, Jul 14, 2009 | 9.73 | 9.79 | 9.61 | 9.69 | 2124 | NASDAQ | ALGN | Mon, Jul 13, 2009 | 9.36 | 9.76 | 9.21 | 9.76 | 2123 | NASDAQ | ALGN | Fri, Jul 10, 2009 | 9.25 | 9.45 | 9.15 | 9.35 | 2122 | NASDAQ | ALGN | Thu, Jul 9, 2009 | 9.46 | 9.66 | 9.23 | 9.27 | 2121 | NASDAQ | ALGN | Wed, Jul 8, 2009 | 9.69 | 9.84 | 9.27 | 9.39 | 2120 | NASDAQ | ALGN | Tue, Jul 7, 2009 | 10.08 | 10.18 | 9.68 | 9.68 | 2119 | NASDAQ | ALGN | Mon, Jul 6, 2009 | 10.22 | 10.34 | 9.95 | 10.11 | 2118 | NASDAQ | ALGN | Thu, Jul 2, 2009 | 10.67 | 10.70 | 10.38 | 10.42 | 2117 | NASDAQ | ALGN | Wed, Jul 1, 2009 | 10.72 | 10.93 | 10.60 | 10.79 | 2116 | NASDAQ | ALGN | Tue, Jun 30, 2009 | 10.90 | 10.96 | 10.58 | 10.60 | 2115 | NASDAQ | ALGN | Mon, Jun 29, 2009 | 10.88 | 11.08 | 10.63 | 10.96 | 2114 | NASDAQ | ALGN | Fri, Jun 26, 2009 | 10.23 | 10.90 | 10.15 | 10.81 | 2113 | NASDAQ | ALGN | Thu, Jun 25, 2009 | 10.49 | 10.84 | 10.49 | 10.82 | 2112 | NASDAQ | ALGN | Wed, Jun 24, 2009 | 10.25 | 10.70 | 10.25 | 10.59 | 2111 | NASDAQ | ALGN | Tue, Jun 23, 2009 | 10.52 | 10.69 | 10.10 | 10.24 | 2110 | NASDAQ | ALGN | Mon, Jun 22, 2009 | 9.82 | 9.94 | 9.43 | 9.49 | 2109 | NASDAQ | ALGN | Fri, Jun 19, 2009 | 9.93 | 10.36 | 9.84 | 9.91 | 2108 | NASDAQ | ALGN | Thu, Jun 18, 2009 | 9.75 | 9.94 | 9.54 | 9.83 | 2107 | NASDAQ | ALGN | Wed, Jun 17, 2009 | 9.76 | 9.98 | 9.67 | 9.75 | 2106 | NASDAQ | ALGN | Tue, Jun 16, 2009 | 10.34 | 10.45 | 9.70 | 9.81 | 2105 | NASDAQ | ALGN | Mon, Jun 15, 2009 | 10.91 | 10.97 | 10.25 | 10.46 | 2104 | NASDAQ | ALGN | Fri, Jun 12, 2009 | 11.15 | 11.34 | 10.78 | 10.98 | 2103 | NASDAQ | ALGN | Thu, Jun 11, 2009 | 11.33 | 11.45 | 11.13 | 11.14 | 2102 | NASDAQ | ALGN | Wed, Jun 10, 2009 | 11.43 | 11.70 | 11.02 | 11.27 | 2101 | NASDAQ | ALGN | Tue, Jun 9, 2009 | 11.00 | 11.42 | 10.89 | 11.33 | 2100 | NASDAQ | ALGN | Mon, Jun 8, 2009 | 11.19 | 11.21 | 10.77 | 10.97 | 2099 | NASDAQ | ALGN | Fri, Jun 5, 2009 | 11.86 | 11.99 | 11.01 | 11.08 | 2098 | NASDAQ | ALGN | Thu, Jun 4, 2009 | 12.19 | 12.25 | 11.65 | 11.80 | 2097 | NASDAQ | ALGN | Wed, Jun 3, 2009 | 12.65 | 12.79 | 11.99 | 12.09 | 2096 | NASDAQ | ALGN | Tue, Jun 2, 2009 | 12.46 | 12.91 | 12.38 | 12.71 | 2095 | NASDAQ | ALGN | Mon, Jun 1, 2009 | 12.08 | 12.64 | 12.08 | 12.55 | 2094 | NASDAQ | ALGN | Fri, May 29, 2009 | 11.70 | 11.90 | 11.58 | 11.83 | 2093 | NASDAQ | ALGN | Thu, May 28, 2009 | 12.06 | 12.11 | 11.52 | 11.70 | 2092 | NASDAQ | ALGN | Wed, May 27, 2009 | 12.01 | 12.21 | 11.81 | 12.01 | 2091 | NASDAQ | ALGN | Tue, May 26, 2009 | 11.92 | 12.33 | 11.66 | 12.18 | 2090 | NASDAQ | ALGN | Fri, May 22, 2009 | 11.84 | 12.16 | 11.76 | 11.97 | 2089 | NASDAQ | ALGN | Thu, May 21, 2009 | 11.67 | 11.93 | 11.31 | 11.81 | 2088 | NASDAQ | ALGN | Wed, May 20, 2009 | 12.11 | 12.43 | 11.87 | 11.92 | 2087 | NASDAQ | ALGN | Tue, May 19, 2009 | 11.95 | 12.12 | 11.70 | 12.06 | 2086 | NASDAQ | ALGN | Mon, May 18, 2009 | 11.63 | 11.91 | 11.38 | 11.87 | 2085 | NASDAQ | ALGN | Fri, May 15, 2009 | 11.50 | 11.73 | 11.21 | 11.56 | 2084 | NASDAQ | ALGN | Thu, May 14, 2009 | 11.10 | 11.69 | 11.07 | 11.54 | 2083 | NASDAQ | ALGN | Wed, May 13, 2009 | 11.39 | 11.72 | 11.09 | 11.20 | 2082 | NASDAQ | ALGN | Tue, May 12, 2009 | 12.29 | 12.29 | 11.35 | 11.58 | 2081 | NASDAQ | ALGN | Mon, May 11, 2009 | 12.34 | 12.53 | 11.66 | 12.26 | 2080 | NASDAQ | ALGN | Fri, May 8, 2009 | 12.15 | 12.54 | 12.13 | 12.54 | 2079 | NASDAQ | ALGN | Thu, May 7, 2009 | 12.05 | 12.24 | 11.80 | 12.02 | 2078 | NASDAQ | ALGN | Wed, May 6, 2009 | 12.51 | 12.54 | 11.59 | 11.93 | 2077 | NASDAQ | ALGN | Tue, May 5, 2009 | 12.30 | 12.49 | 12.20 | 12.43 | 2076 | NASDAQ | ALGN | Mon, May 4, 2009 | 12.20 | 12.34 | 11.97 | 12.33 | 2075 | NASDAQ | ALGN | Fri, May 1, 2009 | 12.57 | 12.71 | 11.85 | 12.06 | 2074 | NASDAQ | ALGN | Thu, Apr 30, 2009 | 12.51 | 12.83 | 12.30 | 12.41 | 2073 | NASDAQ | ALGN | Wed, Apr 29, 2009 | 11.94 | 12.57 | 11.75 | 12.46 | 2072 | NASDAQ | ALGN | Tue, Apr 28, 2009 | 11.83 | 11.99 | 11.63 | 11.83 | 2071 | NASDAQ | ALGN | Mon, Apr 27, 2009 | 12.00 | 12.06 | 11.67 | 11.89 | 2070 | NASDAQ | ALGN | Fri, Apr 24, 2009 | 11.45 | 12.44 | 11.44 | 12.12 | 2069 | NASDAQ | ALGN | Thu, Apr 23, 2009 | 10.25 | 10.54 | 10.00 | 10.34 | 2068 | NASDAQ | ALGN | Wed, Apr 22, 2009 | 9.78 | 10.37 | 9.78 | 10.17 | 2067 | NASDAQ | ALGN | Tue, Apr 21, 2009 | 9.62 | 9.99 | 9.41 | 9.96 | 2066 | NASDAQ | ALGN | Mon, Apr 20, 2009 | 9.78 | 9.97 | 9.43 | 9.70 | 2065 | NASDAQ | ALGN | Fri, Apr 17, 2009 | 9.88 | 10.07 | 9.71 | 10.00 | 2064 | NASDAQ | ALGN | Thu, Apr 16, 2009 | 9.73 | 9.93 | 9.60 | 9.86 | 2063 | NASDAQ | ALGN | Wed, Apr 15, 2009 | 9.29 | 9.75 | 8.87 | 9.68 | 2062 | NASDAQ | ALGN | Tue, Apr 14, 2009 | 8.68 | 9.38 | 8.50 | 9.32 | 2061 | NASDAQ | ALGN | Mon, Apr 13, 2009 | 8.54 | 8.87 | 8.48 | 8.83 | 2060 | NASDAQ | ALGN | Thu, Apr 9, 2009 | 8.39 | 8.80 | 8.26 | 8.68 | 2059 | NASDAQ | ALGN | Wed, Apr 8, 2009 | 7.85 | 8.22 | 7.79 | 8.21 | 2058 | NASDAQ | ALGN | Tue, Apr 7, 2009 | 7.98 | 7.98 | 7.68 | 7.82 | 2057 | NASDAQ | ALGN | Mon, Apr 6, 2009 | 8.02 | 8.18 | 7.95 | 8.09 | 2056 | NASDAQ | ALGN | Fri, Apr 3, 2009 | 8.10 | 8.22 | 7.96 | 8.09 | 2055 | NASDAQ | ALGN | Thu, Apr 2, 2009 | 7.95 | 8.39 | 7.72 | 8.14 | 2054 | NASDAQ | ALGN | Wed, Apr 1, 2009 | 7.83 | 7.91 | 7.62 | 7.85 | 2053 | NASDAQ | ALGN | Tue, Mar 31, 2009 | 8.00 | 8.23 | 7.89 | 7.93 | 2052 | NASDAQ | ALGN | Mon, Mar 30, 2009 | 7.96 | 8.17 | 7.72 | 7.99 | 2051 | NASDAQ | ALGN | Fri, Mar 27, 2009 | 8.29 | 8.37 | 7.91 | 8.19 | 2050 | NASDAQ | ALGN | Thu, Mar 26, 2009 | 7.91 | 8.26 | 7.68 | 8.20 | 2049 | NASDAQ | ALGN | Wed, Mar 25, 2009 | 7.56 | 8.05 | 7.48 | 7.91 | 2048 | NASDAQ | ALGN | Tue, Mar 24, 2009 | 7.53 | 7.70 | 7.47 | 7.58 | 2047 | NASDAQ | ALGN | Mon, Mar 23, 2009 | 7.09 | 7.66 | 6.97 | 7.66 | 2046 | NASDAQ | ALGN | Fri, Mar 20, 2009 | 7.57 | 7.71 | 6.85 | 6.91 | 2045 | NASDAQ | ALGN | Thu, Mar 19, 2009 | 8.04 | 8.04 | 7.50 | 7.54 | 2044 | NASDAQ | ALGN | Wed, Mar 18, 2009 | 7.57 | 8.06 | 7.45 | 7.97 | 2043 | NASDAQ | ALGN | Tue, Mar 17, 2009 | 7.27 | 7.65 | 7.08 | 7.65 | 2042 | NASDAQ | ALGN | Mon, Mar 16, 2009 | 7.57 | 7.73 | 7.25 | 7.29 | 2041 | NASDAQ | ALGN | Fri, Mar 13, 2009 | 7.46 | 7.76 | 7.22 | 7.59 | 2040 | NASDAQ | ALGN | Thu, Mar 12, 2009 | 6.72 | 7.53 | 6.53 | 7.51 | 2039 | NASDAQ | ALGN | Wed, Mar 11, 2009 | 6.94 | 7.17 | 6.58 | 6.71 | 2038 | NASDAQ | ALGN | Tue, Mar 10, 2009 | 6.38 | 7.03 | 6.31 | 6.88 | 2037 | NASDAQ | ALGN | Mon, Mar 9, 2009 | 6.37 | 6.49 | 6.16 | 6.30 | 2036 | NASDAQ | ALGN | Fri, Mar 6, 2009 | 6.47 | 6.47 | 6.10 | 6.41 | 2035 | NASDAQ | ALGN | Thu, Mar 5, 2009 | 7.00 | 7.00 | 6.36 | 6.42 | 2034 | NASDAQ | ALGN | Wed, Mar 4, 2009 | 6.88 | 7.20 | 6.70 | 7.04 | 2033 | NASDAQ | ALGN | Tue, Mar 3, 2009 | 6.36 | 6.85 | 6.35 | 6.78 | 2032 | NASDAQ | ALGN | Mon, Mar 2, 2009 | 6.81 | 6.83 | 6.25 | 6.28 | 2031 | NASDAQ | ALGN | Fri, Feb 27, 2009 | 7.16 | 7.40 | 6.85 | 6.85 | 2030 | NASDAQ | ALGN | Thu, Feb 26, 2009 | 7.59 | 7.80 | 7.20 | 7.22 | 2029 | NASDAQ | ALGN | Wed, Feb 25, 2009 | 7.99 | 8.00 | 7.46 | 7.55 | 2028 | NASDAQ | ALGN | Tue, Feb 24, 2009 | 7.89 | 8.15 | 7.75 | 8.06 | 2027 | NASDAQ | ALGN | Mon, Feb 23, 2009 | 7.70 | 7.98 | 7.70 | 7.82 | 2026 | NASDAQ | ALGN | Fri, Feb 20, 2009 | 7.87 | 8.32 | 7.73 | 7.81 | 2025 | NASDAQ | ALGN | Thu, Feb 19, 2009 | 8.12 | 8.25 | 7.92 | 7.93 | 2024 | NASDAQ | ALGN | Wed, Feb 18, 2009 | 8.45 | 8.61 | 8.02 | 8.03 | 2023 | NASDAQ | ALGN | Tue, Feb 17, 2009 | 8.58 | 8.72 | 8.26 | 8.42 | 2022 | NASDAQ | ALGN | Fri, Feb 13, 2009 | 8.64 | 8.95 | 8.53 | 8.85 | 2021 | NASDAQ | ALGN | Thu, Feb 12, 2009 | 8.50 | 8.67 | 8.31 | 8.61 | 2020 | NASDAQ | ALGN | Wed, Feb 11, 2009 | 8.55 | 8.70 | 8.43 | 8.58 | 2019 | NASDAQ | ALGN | Tue, Feb 10, 2009 | 8.58 | 9.19 | 8.46 | 8.54 | 2018 | NASDAQ | ALGN | Mon, Feb 9, 2009 | 8.78 | 8.81 | 8.42 | 8.61 | 2017 | NASDAQ | ALGN | Fri, Feb 6, 2009 | 8.51 | 8.98 | 8.49 | 8.85 | 2016 | NASDAQ | ALGN | Thu, Feb 5, 2009 | 8.09 | 8.58 | 8.00 | 8.54 | 2015 | NASDAQ | ALGN | Wed, Feb 4, 2009 | 8.25 | 8.44 | 8.06 | 8.19 | 2014 | NASDAQ | ALGN | Tue, Feb 3, 2009 | 8.05 | 8.36 | 8.05 | 8.27 | 2013 | NASDAQ | ALGN | Mon, Feb 2, 2009 | 7.71 | 8.15 | 7.71 | 8.02 | 2012 | NASDAQ | ALGN | Fri, Jan 30, 2009 | 7.50 | 8.12 | 7.50 | 7.88 | 2011 | NASDAQ | ALGN | Thu, Jan 29, 2009 | 7.60 | 8.55 | 7.48 | 7.66 | 2010 | NASDAQ | ALGN | Wed, Jan 28, 2009 | 8.24 | 8.30 | 7.68 | 7.82 | 2009 | NASDAQ | ALGN | Tue, Jan 27, 2009 | 8.45 | 8.61 | 7.95 | 8.15 | 2008 | NASDAQ | ALGN | Mon, Jan 26, 2009 | 8.45 | 8.75 | 8.28 | 8.47 | 2007 | NASDAQ | ALGN | Fri, Jan 23, 2009 | 8.51 | 8.56 | 8.25 | 8.41 | 2006 | NASDAQ | ALGN | Thu, Jan 22, 2009 | 8.65 | 8.88 | 8.31 | 8.73 | 2005 | NASDAQ | ALGN | Wed, Jan 21, 2009 | 8.42 | 8.93 | 8.30 | 8.84 | 2004 | NASDAQ | ALGN | Tue, Jan 20, 2009 | 9.29 | 9.29 | 8.31 | 8.36 | 2003 | NASDAQ | ALGN | Fri, Jan 16, 2009 | 9.31 | 9.31 | 8.86 | 9.25 | 2002 | NASDAQ | ALGN | Thu, Jan 15, 2009 | 9.00 | 9.27 | 8.64 | 9.25 | 2001 | NASDAQ | ALGN | Wed, Jan 14, 2009 | 9.00 | 9.30 | 8.61 | 9.03 | 2000 | NASDAQ | ALGN | Tue, Jan 13, 2009 | 9.18 | 9.67 | 9.12 | 9.21 | 1999 | NASDAQ | ALGN | Mon, Jan 12, 2009 | 8.85 | 9.35 | 8.85 | 9.21 | 1998 | NASDAQ | ALGN | Fri, Jan 9, 2009 | 9.04 | 9.20 | 8.75 | 8.82 | 1997 | NASDAQ | ALGN | Thu, Jan 8, 2009 | 9.30 | 9.35 | 8.74 | 9.01 | 1996 | NASDAQ | ALGN | Wed, Jan 7, 2009 | 9.48 | 9.59 | 9.20 | 9.36 | 1995 | NASDAQ | ALGN | Tue, Jan 6, 2009 | 9.33 | 9.63 | 9.07 | 9.60 | 1994 | NASDAQ | ALGN | Mon, Jan 5, 2009 | 8.94 | 9.35 | 8.35 | 9.25 | 1993 | NASDAQ | ALGN | Fri, Jan 2, 2009 | 8.52 | 9.06 | 8.52 | 8.89 | 1992 | NASDAQ | ALGN | Wed, Dec 31, 2008 | 8.30 | 8.81 | 8.03 | 8.75 | 1991 | NASDAQ | ALGN | Tue, Dec 30, 2008 | 8.16 | 8.31 | 8.08 | 8.27 | 1990 | NASDAQ | ALGN | Mon, Dec 29, 2008 | 8.21 | 8.26 | 7.93 | 8.06 | 1989 | NASDAQ | ALGN | Fri, Dec 26, 2008 | 8.29 | 8.30 | 7.91 | 8.21 | 1988 | NASDAQ | ALGN | Wed, Dec 24, 2008 | 8.13 | 8.36 | 7.97 | 8.24 | 1987 | NASDAQ | ALGN | Tue, Dec 23, 2008 | 8.21 | 8.44 | 8.07 | 8.15 | 1986 | NASDAQ | ALGN | Mon, Dec 22, 2008 | 8.49 | 8.52 | 7.80 | 8.16 | 1985 | NASDAQ | ALGN | Fri, Dec 19, 2008 | 8.43 | 8.75 | 8.10 | 8.47 | 1984 | NASDAQ | ALGN | Thu, Dec 18, 2008 | 8.24 | 8.49 | 8.11 | 8.24 | 1983 | NASDAQ | ALGN | Wed, Dec 17, 2008 | 8.07 | 8.38 | 7.80 | 8.32 | 1982 | NASDAQ | ALGN | Tue, Dec 16, 2008 | 7.67 | 8.23 | 7.40 | 8.18 | 1981 | NASDAQ | ALGN | Mon, Dec 15, 2008 | 7.88 | 8.14 | 7.51 | 7.57 | 1980 | NASDAQ | ALGN | Fri, Dec 12, 2008 | 7.52 | 7.85 | 7.39 | 7.85 | 1979 | NASDAQ | ALGN | Thu, Dec 11, 2008 | 8.14 | 8.14 | 7.53 | 7.67 | 1978 | NASDAQ | ALGN | Wed, Dec 10, 2008 | 7.72 | 8.26 | 7.72 | 8.26 | 1977 | NASDAQ | ALGN | Tue, Dec 9, 2008 | 7.58 | 8.68 | 7.58 | 7.60 | 1976 | NASDAQ | ALGN | Mon, Dec 8, 2008 | 7.58 | 7.94 | 7.56 | 7.62 | 1975 | NASDAQ | ALGN | Fri, Dec 5, 2008 | 6.89 | 7.39 | 6.74 | 7.39 | 1974 | NASDAQ | ALGN | Thu, Dec 4, 2008 | 7.35 | 7.90 | 6.91 | 7.01 | 1973 | NASDAQ | ALGN | Wed, Dec 3, 2008 | 6.66 | 7.47 | 6.66 | 7.42 | 1972 | NASDAQ | ALGN | Tue, Dec 2, 2008 | 7.00 | 7.23 | 6.72 | 6.83 | 1971 | NASDAQ | ALGN | Mon, Dec 1, 2008 | 6.79 | 7.04 | 6.63 | 6.87 | 1970 | NASDAQ | ALGN | Fri, Nov 28, 2008 | 7.26 | 7.51 | 6.92 | 7.00 | 1969 | NASDAQ | ALGN | Wed, Nov 26, 2008 | 6.85 | 7.36 | 6.85 | 7.34 | 1968 | NASDAQ | ALGN | Tue, Nov 25, 2008 | 7.07 | 7.12 | 6.85 | 7.00 | 1967 | NASDAQ | ALGN | Mon, Nov 24, 2008 | 6.46 | 7.01 | 6.13 | 7.01 | 1966 | NASDAQ | ALGN | Fri, Nov 21, 2008 | 6.22 | 6.44 | 5.67 | 6.39 | 1965 | NASDAQ | ALGN | Thu, Nov 20, 2008 | 6.10 | 6.64 | 6.09 | 6.13 | 1964 | NASDAQ | ALGN | Wed, Nov 19, 2008 | 6.97 | 7.13 | 6.12 | 6.12 | 1963 | NASDAQ | ALGN | Tue, Nov 18, 2008 | 6.80 | 7.07 | 6.80 | 6.99 | 1962 | NASDAQ | ALGN | Mon, Nov 17, 2008 | 6.82 | 7.06 | 6.75 | 6.79 | 1961 | NASDAQ | ALGN | Fri, Nov 14, 2008 | 7.05 | 7.45 | 6.80 | 6.87 | 1960 | NASDAQ | ALGN | Thu, Nov 13, 2008 | 6.54 | 7.19 | 6.34 | 7.16 | 1959 | NASDAQ | ALGN | Wed, Nov 12, 2008 | 6.66 | 7.01 | 6.49 | 6.51 | 1958 | NASDAQ | ALGN | Tue, Nov 11, 2008 | 6.81 | 7.04 | 6.55 | 6.75 | 1957 | NASDAQ | ALGN | Mon, Nov 10, 2008 | 7.04 | 7.28 | 6.77 | 6.86 | 1956 | NASDAQ | ALGN | Fri, Nov 7, 2008 | 6.92 | 7.00 | 6.61 | 6.89 | 1955 | NASDAQ | ALGN | Thu, Nov 6, 2008 | 6.99 | 7.06 | 6.83 | 6.85 | 1954 | NASDAQ | ALGN | Wed, Nov 5, 2008 | 6.94 | 7.19 | 6.81 | 6.90 | 1953 | NASDAQ | ALGN | Tue, Nov 4, 2008 | 7.21 | 7.30 | 6.88 | 7.01 | 1952 | NASDAQ | ALGN | Mon, Nov 3, 2008 | 6.90 | 7.01 | 6.70 | 7.00 | 1951 | NASDAQ | ALGN | Fri, Oct 31, 2008 | 6.88 | 7.02 | 6.74 | 6.93 | 1950 | NASDAQ | ALGN | Thu, Oct 30, 2008 | 6.92 | 7.17 | 6.62 | 6.89 | 1949 | NASDAQ | ALGN | Wed, Oct 29, 2008 | 5.98 | 7.79 | 5.92 | 6.76 | 1948 | NASDAQ | ALGN | Tue, Oct 28, 2008 | 5.59 | 6.00 | 5.36 | 5.98 | 1947 | NASDAQ | ALGN | Mon, Oct 27, 2008 | 5.77 | 5.77 | 5.43 | 5.48 | 1946 | NASDAQ | ALGN | Fri, Oct 24, 2008 | 4.96 | 6.05 | 4.88 | 5.62 | 1945 | NASDAQ | ALGN | Thu, Oct 23, 2008 | 5.50 | 5.64 | 4.96 | 5.00 | 1944 | NASDAQ | ALGN | Wed, Oct 22, 2008 | 5.66 | 5.85 | 5.38 | 5.48 | 1943 | NASDAQ | ALGN | Tue, Oct 21, 2008 | 6.05 | 6.23 | 5.77 | 5.78 | 1942 | NASDAQ | ALGN | Mon, Oct 20, 2008 | 6.24 | 6.50 | 5.94 | 6.16 | 1941 | NASDAQ | ALGN | Fri, Oct 17, 2008 | 6.20 | 8.69 | 6.00 | 6.08 | 1940 | NASDAQ | ALGN | Thu, Oct 16, 2008 | 6.13 | 6.50 | 5.83 | 6.46 | 1939 | NASDAQ | ALGN | Wed, Oct 15, 2008 | 6.38 | 6.71 | 6.03 | 6.08 | 1938 | NASDAQ | ALGN | Tue, Oct 14, 2008 | 7.11 | 7.23 | 6.34 | 6.46 | 1937 | NASDAQ | ALGN | Mon, Oct 13, 2008 | 6.88 | 7.22 | 6.68 | 6.93 | 1936 | NASDAQ | ALGN | Fri, Oct 10, 2008 | 7.03 | 7.09 | 5.59 | 6.77 | 1935 | NASDAQ | ALGN | Thu, Oct 9, 2008 | 8.50 | 8.84 | 6.89 | 7.01 | 1934 | NASDAQ | ALGN | Wed, Oct 8, 2008 | 7.99 | 8.79 | 7.91 | 8.39 | 1933 | NASDAQ | ALGN | Tue, Oct 7, 2008 | 8.63 | 8.97 | 7.98 | 8.23 | 1932 | NASDAQ | ALGN | Mon, Oct 6, 2008 | 9.01 | 9.06 | 7.91 | 8.51 | 1931 | NASDAQ | ALGN | Fri, Oct 3, 2008 | 9.93 | 10.40 | 9.04 | 9.11 | 1930 | NASDAQ | ALGN | Thu, Oct 2, 2008 | 10.51 | 10.72 | 9.68 | 9.78 | 1929 | NASDAQ | ALGN | Wed, Oct 1, 2008 | 10.75 | 10.88 | 10.37 | 10.48 | 1928 | NASDAQ | ALGN | Tue, Sep 30, 2008 | 10.47 | 10.87 | 10.47 | 10.83 | 1927 | NASDAQ | ALGN | Mon, Sep 29, 2008 | 11.02 | 11.15 | 10.45 | 10.45 | 1926 | NASDAQ | ALGN | Fri, Sep 26, 2008 | 10.98 | 11.27 | 10.89 | 11.23 | 1925 | NASDAQ | ALGN | Thu, Sep 25, 2008 | 11.08 | 11.46 | 11.02 | 11.13 | 1924 | NASDAQ | ALGN | Wed, Sep 24, 2008 | 11.71 | 12.00 | 11.09 | 11.09 | 1923 | NASDAQ | ALGN | Tue, Sep 23, 2008 | 12.21 | 12.64 | 11.60 | 11.67 | 1922 | NASDAQ | ALGN | Mon, Sep 22, 2008 | 13.16 | 13.16 | 12.20 | 12.20 | 1921 | NASDAQ | ALGN | Fri, Sep 19, 2008 | 13.34 | 13.46 | 12.75 | 13.00 | 1920 | NASDAQ | ALGN | Thu, Sep 18, 2008 | 12.58 | 12.75 | 12.00 | 12.62 | 1919 | NASDAQ | ALGN | Wed, Sep 17, 2008 | 13.11 | 13.29 | 12.37 | 12.45 | 1918 | NASDAQ | ALGN | Tue, Sep 16, 2008 | 12.91 | 13.27 | 12.54 | 13.25 | 1917 | NASDAQ | ALGN | Mon, Sep 15, 2008 | 12.85 | 13.11 | 12.67 | 12.83 | 1916 | NASDAQ | ALGN | Fri, Sep 12, 2008 | 13.34 | 13.45 | 13.11 | 13.19 | 1915 | NASDAQ | ALGN | Thu, Sep 11, 2008 | 13.23 | 13.55 | 12.85 | 13.38 | 1914 | NASDAQ | ALGN | Wed, Sep 10, 2008 | 13.44 | 13.44 | 13.01 | 13.32 | 1913 | NASDAQ | ALGN | Tue, Sep 9, 2008 | 13.34 | 13.73 | 13.19 | 13.31 | 1912 | NASDAQ | ALGN | Mon, Sep 8, 2008 | 13.32 | 13.36 | 12.90 | 13.30 | 1911 | NASDAQ | ALGN | Fri, Sep 5, 2008 | 13.14 | 13.24 | 12.84 | 12.96 | 1910 | NASDAQ | ALGN | Thu, Sep 4, 2008 | 13.42 | 13.52 | 12.95 | 13.14 | 1909 | NASDAQ | ALGN | Wed, Sep 3, 2008 | 13.43 | 13.66 | 13.37 | 13.48 | 1908 | NASDAQ | ALGN | Tue, Sep 2, 2008 | 13.18 | 13.74 | 13.04 | 13.42 | 1907 | NASDAQ | ALGN | Fri, Aug 29, 2008 | 13.00 | 13.14 | 12.90 | 13.04 | 1906 | NASDAQ | ALGN | Thu, Aug 28, 2008 | 12.68 | 13.18 | 12.62 | 13.14 | 1905 | NASDAQ | ALGN | Wed, Aug 27, 2008 | 12.62 | 12.83 | 12.55 | 12.70 | 1904 | NASDAQ | ALGN | Tue, Aug 26, 2008 | 12.58 | 12.94 | 12.47 | 12.64 | 1903 | NASDAQ | ALGN | Mon, Aug 25, 2008 | 12.92 | 12.99 | 12.56 | 12.62 | 1902 | NASDAQ | ALGN | Fri, Aug 22, 2008 | 12.48 | 13.00 | 12.48 | 12.96 | 1901 | NASDAQ | ALGN | Thu, Aug 21, 2008 | 12.20 | 12.61 | 12.20 | 12.41 | 1900 | NASDAQ | ALGN | Wed, Aug 20, 2008 | 12.30 | 12.84 | 12.10 | 12.33 | 1899 | NASDAQ | ALGN | Tue, Aug 19, 2008 | 12.72 | 12.83 | 12.06 | 12.29 | 1898 | NASDAQ | ALGN | Mon, Aug 18, 2008 | 13.04 | 13.19 | 12.69 | 12.82 | 1897 | NASDAQ | ALGN | Fri, Aug 15, 2008 | 12.96 | 13.13 | 12.86 | 13.02 | 1896 | NASDAQ | ALGN | Thu, Aug 14, 2008 | 12.72 | 13.00 | 12.72 | 12.81 | 1895 | NASDAQ | ALGN | Wed, Aug 13, 2008 | 12.82 | 13.05 | 12.52 | 12.82 | 1894 | NASDAQ | ALGN | Tue, Aug 12, 2008 | 12.76 | 13.03 | 12.72 | 12.88 | 1893 | NASDAQ | ALGN | Mon, Aug 11, 2008 | 12.16 | 13.19 | 11.95 | 12.84 | 1892 | NASDAQ | ALGN | Fri, Aug 8, 2008 | 11.70 | 12.35 | 11.56 | 12.31 | 1891 | NASDAQ | ALGN | Thu, Aug 7, 2008 | 11.28 | 11.77 | 11.09 | 11.72 | 1890 | NASDAQ | ALGN | Wed, Aug 6, 2008 | 10.91 | 11.37 | 10.73 | 11.35 | 1889 | NASDAQ | ALGN | Tue, Aug 5, 2008 | 10.66 | 10.97 | 10.41 | 10.95 | 1888 | NASDAQ | ALGN | Mon, Aug 4, 2008 | 10.50 | 10.55 | 10.26 | 10.51 | 1887 | NASDAQ | ALGN | Fri, Aug 1, 2008 | 9.94 | 10.70 | 9.91 | 10.54 | 1886 | NASDAQ | ALGN | Thu, Jul 31, 2008 | 10.01 | 10.09 | 9.80 | 10.01 | 1885 | NASDAQ | ALGN | Wed, Jul 30, 2008 | 9.10 | 10.62 | 9.02 | 10.17 | 1884 | NASDAQ | ALGN | Tue, Jul 29, 2008 | 11.26 | 11.56 | 10.94 | 11.19 | 1883 | NASDAQ | ALGN | Mon, Jul 28, 2008 | 11.47 | 11.52 | 11.08 | 11.26 | 1882 | NASDAQ | ALGN | Fri, Jul 25, 2008 | 11.78 | 11.96 | 11.46 | 11.52 | 1881 | NASDAQ | ALGN | Thu, Jul 24, 2008 | 11.75 | 11.87 | 11.59 | 11.67 | 1880 | NASDAQ | ALGN | Wed, Jul 23, 2008 | 11.47 | 11.78 | 11.25 | 11.70 | 1879 | NASDAQ | ALGN | Tue, Jul 22, 2008 | 11.03 | 11.68 | 10.91 | 11.62 | 1878 | NASDAQ | ALGN | Mon, Jul 21, 2008 | 11.47 | 11.69 | 10.98 | 11.04 | 1877 | NASDAQ | ALGN | Fri, Jul 18, 2008 | 12.15 | 12.15 | 11.39 | 11.45 | 1876 | NASDAQ | ALGN | Thu, Jul 17, 2008 | 11.40 | 12.24 | 11.34 | 12.16 | 1875 | NASDAQ | ALGN | Wed, Jul 16, 2008 | 10.71 | 11.33 | 10.56 | 11.26 | 1874 | NASDAQ | ALGN | Tue, Jul 15, 2008 | 10.41 | 11.14 | 10.38 | 10.79 | 1873 | NASDAQ | ALGN | Mon, Jul 14, 2008 | 10.79 | 10.93 | 10.27 | 10.51 | 1872 | NASDAQ | ALGN | Fri, Jul 11, 2008 | 10.12 | 10.75 | 10.01 | 10.68 | 1871 | NASDAQ | ALGN | Thu, Jul 10, 2008 | 10.92 | 11.08 | 10.10 | 10.23 | 1870 | NASDAQ | ALGN | Wed, Jul 9, 2008 | 11.44 | 11.44 | 10.87 | 10.87 | 1869 | NASDAQ | ALGN | Tue, Jul 8, 2008 | 11.17 | 11.52 | 11.16 | 11.30 | 1868 | NASDAQ | ALGN | Mon, Jul 7, 2008 | 11.25 | 11.44 | 11.01 | 11.13 | 1867 | NASDAQ | ALGN | Thu, Jul 3, 2008 | 11.20 | 11.30 | 10.92 | 11.16 | 1866 | NASDAQ | ALGN | Wed, Jul 2, 2008 | 10.85 | 11.39 | 10.84 | 11.22 | 1865 | NASDAQ | ALGN | Tue, Jul 1, 2008 | 10.38 | 10.86 | 10.19 | 10.84 | 1864 | NASDAQ | ALGN | Mon, Jun 30, 2008 | 10.73 | 10.92 | 10.47 | 10.49 | 1863 | NASDAQ | ALGN | Fri, Jun 27, 2008 | 10.87 | 11.03 | 10.68 | 10.71 | 1862 | NASDAQ | ALGN | Thu, Jun 26, 2008 | 11.15 | 11.22 | 10.75 | 10.91 | 1861 | NASDAQ | ALGN | Wed, Jun 25, 2008 | 11.30 | 11.72 | 11.06 | 11.31 | 1860 | NASDAQ | ALGN | Tue, Jun 24, 2008 | 11.60 | 11.74 | 10.96 | 11.07 | 1859 | NASDAQ | ALGN | Mon, Jun 23, 2008 | 12.21 | 12.21 | 11.62 | 11.69 | 1858 | NASDAQ | ALGN | Fri, Jun 20, 2008 | 12.67 | 12.68 | 11.96 | 12.12 | 1857 | NASDAQ | ALGN | Thu, Jun 19, 2008 | 12.36 | 12.80 | 12.23 | 12.75 | 1856 | NASDAQ | ALGN | Wed, Jun 18, 2008 | 12.89 | 12.95 | 12.32 | 12.37 | 1855 | NASDAQ | ALGN | Tue, Jun 17, 2008 | 12.25 | 13.01 | 12.07 | 12.93 | 1854 | NASDAQ | ALGN | Mon, Jun 16, 2008 | 12.28 | 12.31 | 12.04 | 12.25 | 1853 | NASDAQ | ALGN | Fri, Jun 13, 2008 | 12.16 | 12.30 | 12.05 | 12.30 | 1852 | NASDAQ | ALGN | Thu, Jun 12, 2008 | 11.76 | 12.16 | 11.76 | 12.02 | 1851 | NASDAQ | ALGN | Wed, Jun 11, 2008 | 12.04 | 12.29 | 11.67 | 11.67 | 1850 | NASDAQ | ALGN | Tue, Jun 10, 2008 | 12.49 | 12.52 | 11.97 | 12.10 | 1849 | NASDAQ | ALGN | Mon, Jun 9, 2008 | 12.90 | 12.97 | 12.30 | 12.61 | 1848 | NASDAQ | ALGN | Fri, Jun 6, 2008 | 13.07 | 13.13 | 12.81 | 12.90 | 1847 | NASDAQ | ALGN | Thu, Jun 5, 2008 | 13.10 | 13.31 | 12.70 | 13.19 | 1846 | NASDAQ | ALGN | Wed, Jun 4, 2008 | 13.08 | 13.35 | 12.93 | 13.11 | 1845 | NASDAQ | ALGN | Tue, Jun 3, 2008 | 13.14 | 13.32 | 12.97 | 13.06 | 1844 | NASDAQ | ALGN | Mon, Jun 2, 2008 | 13.20 | 13.45 | 12.98 | 13.06 | 1843 | NASDAQ | ALGN | Fri, May 30, 2008 | 13.18 | 13.25 | 12.86 | 13.17 | 1842 | NASDAQ | ALGN | Thu, May 29, 2008 | 12.71 | 13.24 | 12.71 | 13.15 | 1841 | NASDAQ | ALGN | Wed, May 28, 2008 | 12.97 | 13.05 | 12.52 | 12.76 | 1840 | NASDAQ | ALGN | Tue, May 27, 2008 | 12.76 | 13.10 | 12.75 | 12.96 | 1839 | NASDAQ | ALGN | Fri, May 23, 2008 | 12.88 | 13.00 | 12.54 | 12.72 | 1838 | NASDAQ | ALGN | Thu, May 22, 2008 | 12.70 | 13.05 | 12.67 | 12.98 | 1837 | NASDAQ | ALGN | Wed, May 21, 2008 | 12.94 | 13.42 | 12.69 | 12.75 | 1836 | NASDAQ | ALGN | Tue, May 20, 2008 | 12.87 | 13.13 | 12.65 | 12.89 | 1835 | NASDAQ | ALGN | Mon, May 19, 2008 | 12.62 | 13.14 | 12.52 | 12.93 | 1834 | NASDAQ | ALGN | Fri, May 16, 2008 | 12.93 | 12.93 | 12.40 | 12.54 | 1833 | NASDAQ | ALGN | Thu, May 15, 2008 | 12.47 | 12.99 | 12.40 | 12.89 | 1832 | NASDAQ | ALGN | Wed, May 14, 2008 | 12.51 | 12.74 | 12.50 | 12.50 | 1831 | NASDAQ | ALGN | Tue, May 13, 2008 | 12.75 | 12.75 | 12.30 | 12.48 | 1830 | NASDAQ | ALGN | Mon, May 12, 2008 | 12.45 | 12.78 | 12.27 | 12.76 | 1829 | NASDAQ | ALGN | Fri, May 9, 2008 | 12.34 | 12.50 | 12.13 | 12.44 | 1828 | NASDAQ | ALGN | Thu, May 8, 2008 | 12.13 | 12.55 | 12.05 | 12.26 | 1827 | NASDAQ | ALGN | Wed, May 7, 2008 | 12.22 | 12.54 | 11.98 | 12.03 | 1826 | NASDAQ | ALGN | Tue, May 6, 2008 | 12.06 | 12.41 | 12.00 | 12.26 | 1825 | NASDAQ | ALGN | Mon, May 5, 2008 | 12.18 | 12.42 | 12.09 | 12.16 | 1824 | NASDAQ | ALGN | Fri, May 2, 2008 | 12.32 | 12.69 | 12.19 | 12.19 | 1823 | NASDAQ | ALGN | Thu, May 1, 2008 | 12.17 | 12.37 | 12.00 | 12.20 | 1822 | NASDAQ | ALGN | Wed, Apr 30, 2008 | 12.23 | 12.79 | 11.90 | 12.28 | 1821 | NASDAQ | ALGN | Tue, Apr 29, 2008 | 10.50 | 10.59 | 10.20 | 10.32 | 1820 | NASDAQ | ALGN | Mon, Apr 28, 2008 | 9.97 | 10.49 | 9.97 | 10.40 | 1819 | NASDAQ | ALGN | Fri, Apr 25, 2008 | 9.94 | 10.05 | 9.89 | 10.00 | 1818 | NASDAQ | ALGN | Thu, Apr 24, 2008 | 9.87 | 10.05 | 9.65 | 9.88 | 1817 | NASDAQ | ALGN | Wed, Apr 23, 2008 | 9.87 | 10.03 | 9.81 | 9.99 | 1816 | NASDAQ | ALGN | Tue, Apr 22, 2008 | 10.00 | 10.02 | 9.65 | 9.84 | 1815 | NASDAQ | ALGN | Mon, Apr 21, 2008 | 10.03 | 10.15 | 9.85 | 10.10 | 1814 | NASDAQ | ALGN | Fri, Apr 18, 2008 | 10.00 | 10.05 | 9.94 | 10.03 | 1813 | NASDAQ | ALGN | Thu, Apr 17, 2008 | 10.05 | 10.07 | 9.80 | 9.89 | 1812 | NASDAQ | ALGN | Wed, Apr 16, 2008 | 10.06 | 10.10 | 9.93 | 10.07 | 1811 | NASDAQ | ALGN | Tue, Apr 15, 2008 | 10.00 | 10.09 | 9.94 | 9.97 | 1810 | NASDAQ | ALGN | Mon, Apr 14, 2008 | 9.90 | 10.05 | 9.87 | 9.97 | 1809 | NASDAQ | ALGN | Fri, Apr 11, 2008 | 10.23 | 10.31 | 9.92 | 9.95 | 1808 | NASDAQ | ALGN | Thu, Apr 10, 2008 | 10.69 | 10.78 | 10.22 | 10.33 | 1807 | NASDAQ | ALGN | Wed, Apr 9, 2008 | 11.24 | 11.29 | 10.65 | 10.69 | 1806 | NASDAQ | ALGN | Tue, Apr 8, 2008 | 11.34 | 11.34 | 11.10 | 11.14 | 1805 | NASDAQ | ALGN | Mon, Apr 7, 2008 | 11.62 | 11.71 | 11.44 | 11.44 | 1804 | NASDAQ | ALGN | Fri, Apr 4, 2008 | 11.30 | 11.71 | 11.22 | 11.61 | 1803 | NASDAQ | ALGN | Thu, Apr 3, 2008 | 12.13 | 12.13 | 11.21 | 11.27 | 1802 | NASDAQ | ALGN | Wed, Apr 2, 2008 | 12.45 | 12.52 | 12.14 | 12.22 | 1801 | NASDAQ | ALGN | Tue, Apr 1, 2008 | 11.23 | 12.50 | 11.11 | 12.40 | 1800 | NASDAQ | ALGN | Mon, Mar 31, 2008 | 11.16 | 11.29 | 11.05 | 11.11 | 1799 | NASDAQ | ALGN | Fri, Mar 28, 2008 | 11.52 | 11.94 | 11.15 | 11.19 | 1798 | NASDAQ | ALGN | Thu, Mar 27, 2008 | 11.66 | 11.79 | 11.45 | 11.62 | 1797 | NASDAQ | ALGN | Wed, Mar 26, 2008 | 12.00 | 12.14 | 11.45 | 11.60 | 1796 | NASDAQ | ALGN | Tue, Mar 25, 2008 | 12.50 | 12.58 | 11.79 | 12.06 | 1795 | NASDAQ | ALGN | Mon, Mar 24, 2008 | 11.42 | 12.90 | 11.42 | 12.55 | 1794 | NASDAQ | ALGN | Thu, Mar 20, 2008 | 11.33 | 11.61 | 11.03 | 11.39 | 1793 | NASDAQ | ALGN | Wed, Mar 19, 2008 | 11.64 | 11.90 | 11.18 | 11.18 | 1792 | NASDAQ | ALGN | Tue, Mar 18, 2008 | 10.55 | 11.68 | 10.34 | 11.53 | 1791 | NASDAQ | ALGN | Mon, Mar 17, 2008 | 10.95 | 11.10 | 10.34 | 10.34 | 1790 | NASDAQ | ALGN | Fri, Mar 14, 2008 | 11.54 | 11.69 | 10.87 | 10.92 | 1789 | NASDAQ | ALGN | Thu, Mar 13, 2008 | 11.19 | 11.57 | 10.88 | 11.46 | 1788 | NASDAQ | ALGN | Wed, Mar 12, 2008 | 11.24 | 11.63 | 11.19 | 11.33 | 1787 | NASDAQ | ALGN | Tue, Mar 11, 2008 | 11.12 | 11.28 | 10.94 | 11.22 | 1786 | NASDAQ | ALGN | Mon, Mar 10, 2008 | 11.15 | 11.18 | 10.86 | 10.89 | 1785 | NASDAQ | ALGN | Fri, Mar 7, 2008 | 11.42 | 11.47 | 10.96 | 11.10 | 1784 | NASDAQ | ALGN | Thu, Mar 6, 2008 | 11.86 | 11.98 | 11.57 | 11.59 | 1783 | NASDAQ | ALGN | Wed, Mar 5, 2008 | 12.00 | 12.05 | 11.84 | 11.90 | 1782 | NASDAQ | ALGN | Tue, Mar 4, 2008 | 12.01 | 12.09 | 11.79 | 11.96 | 1781 | NASDAQ | ALGN | Mon, Mar 3, 2008 | 12.38 | 12.44 | 12.00 | 12.04 | 1780 | NASDAQ | ALGN | Fri, Feb 29, 2008 | 12.71 | 12.72 | 12.30 | 12.35 | 1779 | NASDAQ | ALGN | Thu, Feb 28, 2008 | 13.26 | 13.36 | 12.80 | 12.84 | 1778 | NASDAQ | ALGN | Wed, Feb 27, 2008 | 12.92 | 13.45 | 12.78 | 13.41 | 1777 | NASDAQ | ALGN | Tue, Feb 26, 2008 | 12.89 | 13.17 | 12.71 | 13.02 | 1776 | NASDAQ | ALGN | Mon, Feb 25, 2008 | 12.75 | 13.13 | 12.74 | 12.95 | 1775 | NASDAQ | ALGN | Fri, Feb 22, 2008 | 12.86 | 12.94 | 12.59 | 12.82 | 1774 | NASDAQ | ALGN | Thu, Feb 21, 2008 | 12.88 | 13.40 | 12.78 | 12.81 | 1773 | NASDAQ | ALGN | Wed, Feb 20, 2008 | 13.13 | 13.20 | 12.74 | 13.00 | 1772 | NASDAQ | ALGN | Tue, Feb 19, 2008 | 13.13 | 13.50 | 13.09 | 13.20 | 1771 | NASDAQ | ALGN | Fri, Feb 15, 2008 | 13.00 | 13.05 | 12.73 | 13.02 | 1770 | NASDAQ | ALGN | Thu, Feb 14, 2008 | 13.42 | 13.48 | 12.71 | 12.91 | 1769 | NASDAQ | ALGN | Wed, Feb 13, 2008 | 13.30 | 13.48 | 13.09 | 13.19 | 1768 | NASDAQ | ALGN | Tue, Feb 12, 2008 | 13.06 | 13.29 | 12.85 | 13.25 | 1767 | NASDAQ | ALGN | Mon, Feb 11, 2008 | 13.01 | 13.10 | 12.73 | 13.09 | 1766 | NASDAQ | ALGN | Fri, Feb 8, 2008 | 13.16 | 13.49 | 12.95 | 13.01 | 1765 | NASDAQ | ALGN | Thu, Feb 7, 2008 | 13.26 | 13.45 | 12.94 | 13.16 | 1764 | NASDAQ | ALGN | Wed, Feb 6, 2008 | 12.84 | 13.62 | 12.56 | 13.39 | 1763 | NASDAQ | ALGN | Tue, Feb 5, 2008 | 12.51 | 12.98 | 12.51 | 12.71 | 1762 | NASDAQ | ALGN | Mon, Feb 4, 2008 | 12.05 | 12.80 | 12.05 | 12.70 | 1761 | NASDAQ | ALGN | Fri, Feb 1, 2008 | 11.59 | 12.40 | 11.57 | 12.06 | 1760 | NASDAQ | ALGN | Thu, Jan 31, 2008 | 11.60 | 12.03 | 11.39 | 11.78 | 1759 | NASDAQ | ALGN | Wed, Jan 30, 2008 | 10.96 | 12.40 | 10.80 | 11.93 | 1758 | NASDAQ | ALGN | Tue, Jan 29, 2008 | 13.14 | 14.85 | 13.04 | 14.00 | 1757 | NASDAQ | ALGN | Mon, Jan 28, 2008 | 13.75 | 13.90 | 12.82 | 12.99 | 1756 | NASDAQ | ALGN | Fri, Jan 25, 2008 | 13.26 | 14.01 | 13.21 | 13.87 | 1755 | NASDAQ | ALGN | Thu, Jan 24, 2008 | 13.61 | 13.69 | 13.09 | 13.12 | 1754 | NASDAQ | ALGN | Wed, Jan 23, 2008 | 12.65 | 13.67 | 12.57 | 13.48 | 1753 | NASDAQ | ALGN | Tue, Jan 22, 2008 | 12.96 | 13.15 | 12.16 | 12.98 | 1752 | NASDAQ | ALGN | Fri, Jan 18, 2008 | 13.55 | 13.70 | 13.25 | 13.40 | 1751 | NASDAQ | ALGN | Thu, Jan 17, 2008 | 14.30 | 14.31 | 13.42 | 13.50 | 1750 | NASDAQ | ALGN | Wed, Jan 16, 2008 | 13.95 | 14.59 | 13.93 | 14.22 | 1749 | NASDAQ | ALGN | Tue, Jan 15, 2008 | 14.49 | 14.58 | 13.90 | 13.96 | 1748 | NASDAQ | ALGN | Mon, Jan 14, 2008 | 14.90 | 15.05 | 14.50 | 14.70 | 1747 | NASDAQ | ALGN | Fri, Jan 11, 2008 | 15.11 | 15.36 | 14.71 | 14.77 | 1746 | NASDAQ | ALGN | Thu, Jan 10, 2008 | 15.72 | 15.72 | 14.85 | 15.26 | 1745 | NASDAQ | ALGN | Wed, Jan 9, 2008 | 15.43 | 15.97 | 15.29 | 15.93 | 1744 | NASDAQ | ALGN | Tue, Jan 8, 2008 | 16.19 | 16.45 | 15.33 | 15.34 | 1743 | NASDAQ | ALGN | Mon, Jan 7, 2008 | 16.45 | 16.57 | 15.96 | 16.14 | 1742 | NASDAQ | ALGN | Fri, Jan 4, 2008 | 16.33 | 16.83 | 16.24 | 16.50 | 1741 | NASDAQ | ALGN | Thu, Jan 3, 2008 | 16.54 | 17.02 | 16.49 | 16.55 | 1740 | NASDAQ | ALGN | Wed, Jan 2, 2008 | 16.68 | 17.22 | 16.34 | 16.47 | 1739 | NASDAQ | ALGN | Mon, Dec 31, 2007 | 17.24 | 17.24 | 16.53 | 16.68 | 1738 | NASDAQ | ALGN | Fri, Dec 28, 2007 | 17.24 | 17.85 | 17.05 | 17.15 | 1737 | NASDAQ | ALGN | Thu, Dec 27, 2007 | 18.07 | 18.14 | 17.14 | 17.14 | 1736 | NASDAQ | ALGN | Wed, Dec 26, 2007 | 17.81 | 18.18 | 17.55 | 18.15 | 1735 | NASDAQ | ALGN | Mon, Dec 24, 2007 | 17.62 | 18.03 | 17.50 | 17.95 | 1734 | NASDAQ | ALGN | Fri, Dec 21, 2007 | 17.99 | 18.19 | 17.39 | 17.62 | 1733 | NASDAQ | ALGN | Thu, Dec 20, 2007 | 17.25 | 17.82 | 17.25 | 17.75 | 1732 | NASDAQ | ALGN | Wed, Dec 19, 2007 | 17.24 | 17.29 | 16.96 | 17.08 | 1731 | NASDAQ | ALGN | Tue, Dec 18, 2007 | 17.51 | 17.57 | 16.99 | 17.24 | 1730 | NASDAQ | ALGN | Mon, Dec 17, 2007 | 17.66 | 17.91 | 17.33 | 17.34 | 1729 | NASDAQ | ALGN | Fri, Dec 14, 2007 | 17.91 | 18.52 | 17.63 | 17.77 | 1728 | NASDAQ | ALGN | Thu, Dec 13, 2007 | 18.18 | 18.36 | 17.89 | 18.00 | 1727 | NASDAQ | ALGN | Wed, Dec 12, 2007 | 18.70 | 18.92 | 17.93 | 18.34 | 1726 | NASDAQ | ALGN | Tue, Dec 11, 2007 | 18.89 | 19.13 | 17.96 | 18.12 | 1725 | NASDAQ | ALGN | Mon, Dec 10, 2007 | 18.59 | 19.11 | 18.59 | 18.83 | 1724 | NASDAQ | ALGN | Fri, Dec 7, 2007 | 18.42 | 19.88 | 18.29 | 18.62 | 1723 | NASDAQ | ALGN | Thu, Dec 6, 2007 | 16.81 | 17.64 | 16.81 | 17.55 | 1722 | NASDAQ | ALGN | Wed, Dec 5, 2007 | 16.71 | 17.00 | 16.71 | 16.84 | 1721 | NASDAQ | ALGN | Tue, Dec 4, 2007 | 16.30 | 16.83 | 16.24 | 16.52 | 1720 | NASDAQ | ALGN | Mon, Dec 3, 2007 | 16.82 | 16.92 | 16.29 | 16.34 | 1719 | NASDAQ | ALGN | Fri, Nov 30, 2007 | 16.34 | 17.19 | 16.28 | 16.89 | 1718 | NASDAQ | ALGN | Thu, Nov 29, 2007 | 16.32 | 16.59 | 16.00 | 16.19 | 1717 | NASDAQ | ALGN | Wed, Nov 28, 2007 | 15.83 | 16.37 | 15.75 | 16.33 | 1716 | NASDAQ | ALGN | Tue, Nov 27, 2007 | 15.15 | 15.73 | 15.10 | 15.64 | 1715 | NASDAQ | ALGN | Mon, Nov 26, 2007 | 14.75 | 15.54 | 14.70 | 15.26 | 1714 | NASDAQ | ALGN | Fri, Nov 23, 2007 | 14.75 | 14.98 | 14.62 | 14.80 | 1713 | NASDAQ | ALGN | Wed, Nov 21, 2007 | 15.78 | 15.86 | 14.66 | 14.69 | 1712 | NASDAQ | ALGN | Tue, Nov 20, 2007 | 15.47 | 16.05 | 15.43 | 15.90 | 1711 | NASDAQ | ALGN | Mon, Nov 19, 2007 | 15.67 | 15.78 | 15.37 | 15.53 | 1710 | NASDAQ | ALGN | Fri, Nov 16, 2007 | 16.21 | 16.38 | 15.72 | 15.87 | 1709 | NASDAQ | ALGN | Thu, Nov 15, 2007 | 17.41 | 17.41 | 16.06 | 16.17 | 1708 | NASDAQ | ALGN | Wed, Nov 14, 2007 | 17.45 | 17.70 | 17.30 | 17.46 | 1707 | NASDAQ | ALGN | Tue, Nov 13, 2007 | 17.31 | 17.46 | 17.12 | 17.30 | 1706 | NASDAQ | ALGN | Mon, Nov 12, 2007 | 17.51 | 17.65 | 17.01 | 17.11 | 1705 | NASDAQ | ALGN | Fri, Nov 9, 2007 | 16.74 | 17.82 | 16.60 | 17.63 | 1704 | NASDAQ | ALGN | Thu, Nov 8, 2007 | 18.74 | 18.89 | 16.36 | 17.04 | 1703 | NASDAQ | ALGN | Wed, Nov 7, 2007 | 19.03 | 19.25 | 18.69 | 18.71 | 1702 | NASDAQ | ALGN | Tue, Nov 6, 2007 | 19.12 | 19.45 | 18.96 | 19.34 | 1701 | NASDAQ | ALGN | Mon, Nov 5, 2007 | 19.19 | 19.75 | 18.82 | 19.09 | 1700 | NASDAQ | ALGN | Fri, Nov 2, 2007 | 20.15 | 20.25 | 19.46 | 19.51 | 1699 | NASDAQ | ALGN | Thu, Nov 1, 2007 | 20.48 | 20.69 | 19.82 | 19.87 | 1698 | NASDAQ | ALGN | Wed, Oct 31, 2007 | 20.00 | 21.02 | 19.86 | 20.70 | 1697 | NASDAQ | ALGN | Tue, Oct 30, 2007 | 20.15 | 20.15 | 19.68 | 19.91 | 1696 | NASDAQ | ALGN | Mon, Oct 29, 2007 | 18.86 | 20.89 | 18.85 | 20.15 | 1695 | NASDAQ | ALGN | Fri, Oct 26, 2007 | 18.75 | 19.16 | 18.00 | 18.85 | 1694 | NASDAQ | ALGN | Thu, Oct 25, 2007 | 22.50 | 22.75 | 18.78 | 19.07 | 1693 | NASDAQ | ALGN | Wed, Oct 24, 2007 | 28.69 | 28.96 | 27.87 | 28.70 | 1692 | NASDAQ | ALGN | Tue, Oct 23, 2007 | 27.85 | 28.79 | 27.73 | 28.48 | 1691 | NASDAQ | ALGN | Mon, Oct 22, 2007 | 26.84 | 27.75 | 26.63 | 27.58 | 1690 | NASDAQ | ALGN | Fri, Oct 19, 2007 | 28.10 | 28.14 | 26.91 | 27.05 | 1689 | NASDAQ | ALGN | Thu, Oct 18, 2007 | 28.28 | 28.46 | 27.64 | 28.09 | 1688 | NASDAQ | ALGN | Wed, Oct 17, 2007 | 28.50 | 29.30 | 27.75 | 28.14 | 1687 | NASDAQ | ALGN | Tue, Oct 16, 2007 | 26.69 | 27.34 | 26.66 | 27.16 | 1686 | NASDAQ | ALGN | Mon, Oct 15, 2007 | 27.81 | 27.95 | 26.61 | 26.77 | 1685 | NASDAQ | ALGN | Fri, Oct 12, 2007 | 27.37 | 27.80 | 27.32 | 27.62 | 1684 | NASDAQ | ALGN | Thu, Oct 11, 2007 | 28.30 | 28.59 | 26.90 | 27.04 | 1683 | NASDAQ | ALGN | Wed, Oct 10, 2007 | 27.68 | 28.25 | 27.55 | 28.21 | 1682 | NASDAQ | ALGN | Tue, Oct 9, 2007 | 28.51 | 28.54 | 27.58 | 27.84 | 1681 | NASDAQ | ALGN | Mon, Oct 8, 2007 | 28.30 | 28.64 | 28.10 | 28.49 | 1680 | NASDAQ | ALGN | Fri, Oct 5, 2007 | 27.99 | 28.63 | 27.91 | 28.46 | 1679 | NASDAQ | ALGN | Thu, Oct 4, 2007 | 27.17 | 28.00 | 27.17 | 27.74 | 1678 | NASDAQ | ALGN | Wed, Oct 3, 2007 | 26.62 | 27.30 | 25.90 | 27.11 | 1677 | NASDAQ | ALGN | Tue, Oct 2, 2007 | 27.04 | 27.17 | 26.16 | 26.74 | 1676 | NASDAQ | ALGN | Mon, Oct 1, 2007 | 25.22 | 27.49 | 25.02 | 27.06 | 1675 | NASDAQ | ALGN | Fri, Sep 28, 2007 | 25.86 | 26.11 | 25.21 | 25.33 | 1674 | NASDAQ | ALGN | Thu, Sep 27, 2007 | 26.02 | 26.17 | 25.73 | 25.88 | 1673 | NASDAQ | ALGN | Wed, Sep 26, 2007 | 25.48 | 26.24 | 25.46 | 25.98 | 1672 | NASDAQ | ALGN | Tue, Sep 25, 2007 | 25.44 | 25.82 | 25.22 | 25.27 | 1671 | NASDAQ | ALGN | Mon, Sep 24, 2007 | 25.60 | 25.80 | 25.45 | 25.59 | 1670 | NASDAQ | ALGN | Fri, Sep 21, 2007 | 24.71 | 25.97 | 24.39 | 25.56 | 1669 | NASDAQ | ALGN | Thu, Sep 20, 2007 | 24.24 | 24.69 | 24.24 | 24.48 | 1668 | NASDAQ | ALGN | Wed, Sep 19, 2007 | 24.26 | 24.50 | 24.14 | 24.26 | 1667 | NASDAQ | ALGN | Tue, Sep 18, 2007 | 23.70 | 24.23 | 23.35 | 24.11 | 1666 | NASDAQ | ALGN | Mon, Sep 17, 2007 | 23.74 | 24.07 | 23.56 | 23.60 | 1665 | NASDAQ | ALGN | Fri, Sep 14, 2007 | 24.31 | 24.53 | 23.76 | 23.90 | 1664 | NASDAQ | ALGN | Thu, Sep 13, 2007 | 24.99 | 25.12 | 24.50 | 24.54 | 1663 | NASDAQ | ALGN | Wed, Sep 12, 2007 | 24.25 | 25.01 | 24.10 | 24.69 | 1662 | NASDAQ | ALGN | Tue, Sep 11, 2007 | 24.06 | 24.50 | 23.59 | 24.24 | 1661 | NASDAQ | ALGN | Mon, Sep 10, 2007 | 24.04 | 24.12 | 23.25 | 24.00 | 1660 | NASDAQ | ALGN | Fri, Sep 7, 2007 | 24.19 | 24.42 | 23.77 | 23.84 | 1659 | NASDAQ | ALGN | Thu, Sep 6, 2007 | 24.04 | 24.98 | 23.94 | 24.52 | 1658 | NASDAQ | ALGN | Wed, Sep 5, 2007 | 23.26 | 24.03 | 23.26 | 24.01 | 1657 | NASDAQ | ALGN | Tue, Sep 4, 2007 | 22.65 | 23.57 | 22.60 | 23.46 | 1656 | NASDAQ | ALGN | Fri, Aug 31, 2007 | 22.62 | 22.87 | 22.27 | 22.73 | 1655 | NASDAQ | ALGN | Thu, Aug 30, 2007 | 22.25 | 22.93 | 22.21 | 22.71 | 1654 | NASDAQ | ALGN | Wed, Aug 29, 2007 | 22.00 | 22.85 | 21.55 | 22.55 | 1653 | NASDAQ | ALGN | Tue, Aug 28, 2007 | 23.68 | 23.70 | 22.69 | 22.72 | 1652 | NASDAQ | ALGN | Mon, Aug 27, 2007 | 23.70 | 24.67 | 23.70 | 23.92 | 1651 | NASDAQ | ALGN | Fri, Aug 24, 2007 | 25.77 | 25.83 | 21.74 | 23.42 | 1650 | NASDAQ | ALGN | Thu, Aug 23, 2007 | 26.44 | 26.48 | 25.69 | 25.79 | 1649 | NASDAQ | ALGN | Wed, Aug 22, 2007 | 26.35 | 26.85 | 26.21 | 26.26 | 1648 | NASDAQ | ALGN | Tue, Aug 21, 2007 | 25.51 | 26.30 | 25.35 | 26.12 | 1647 | NASDAQ | ALGN | Mon, Aug 20, 2007 | 25.86 | 26.33 | 25.21 | 25.54 | 1646 | NASDAQ | ALGN | Fri, Aug 17, 2007 | 25.99 | 26.20 | 24.52 | 25.80 | 1645 | NASDAQ | ALGN | Thu, Aug 16, 2007 | 26.17 | 26.18 | 22.24 | 24.99 | 1644 | NASDAQ | ALGN | Wed, Aug 15, 2007 | 26.53 | 27.00 | 26.16 | 26.16 | 1643 | NASDAQ | ALGN | Tue, Aug 14, 2007 | 26.13 | 26.98 | 26.06 | 26.57 | 1642 | NASDAQ | ALGN | Mon, Aug 13, 2007 | 26.69 | 27.00 | 25.13 | 26.04 | 1641 | NASDAQ | ALGN | Fri, Aug 10, 2007 | 26.57 | 26.99 | 25.80 | 26.48 | 1640 | NASDAQ | ALGN | Thu, Aug 9, 2007 | 26.91 | 28.34 | 26.70 | 26.93 | 1639 | NASDAQ | ALGN | Wed, Aug 8, 2007 | 27.49 | 27.50 | 26.85 | 27.29 | 1638 | NASDAQ | ALGN | Tue, Aug 7, 2007 | 26.51 | 27.26 | 26.19 | 27.04 | 1637 | NASDAQ | ALGN | Mon, Aug 6, 2007 | 26.01 | 26.91 | 24.88 | 26.90 | 1636 | NASDAQ | ALGN | Fri, Aug 3, 2007 | 26.56 | 26.72 | 25.57 | 25.64 | 1635 | NASDAQ | ALGN | Thu, Aug 2, 2007 | 25.69 | 26.71 | 25.63 | 26.56 | 1634 | NASDAQ | ALGN | Wed, Aug 1, 2007 | 25.96 | 26.48 | 25.67 | 25.95 | 1633 | NASDAQ | ALGN | Tue, Jul 31, 2007 | 27.18 | 27.24 | 26.07 | 26.10 | 1632 | NASDAQ | ALGN | Mon, Jul 30, 2007 | 27.20 | 27.36 | 26.36 | 27.01 | 1631 | NASDAQ | ALGN | Fri, Jul 27, 2007 | 27.47 | 27.94 | 26.82 | 27.08 | 1630 | NASDAQ | ALGN | Thu, Jul 26, 2007 | 27.41 | 28.07 | 27.17 | 27.62 | 1629 | NASDAQ | ALGN | Wed, Jul 25, 2007 | 29.68 | 29.71 | 26.87 | 27.69 | 1628 | NASDAQ | ALGN | Tue, Jul 24, 2007 | 26.16 | 27.36 | 25.65 | 25.84 | 1627 | NASDAQ | ALGN | Mon, Jul 23, 2007 | 26.18 | 26.19 | 25.85 | 26.00 | 1626 | NASDAQ | ALGN | Fri, Jul 20, 2007 | 25.96 | 26.06 | 25.95 | 26.02 | 1625 | NASDAQ | ALGN | Thu, Jul 19, 2007 | 26.01 | 26.15 | 25.76 | 26.01 | 1624 | NASDAQ | ALGN | Wed, Jul 18, 2007 | 26.14 | 26.26 | 25.78 | 25.98 | 1623 | NASDAQ | ALGN | Tue, Jul 17, 2007 | 26.09 | 26.45 | 25.80 | 26.25 | 1622 | NASDAQ | ALGN | Mon, Jul 16, 2007 | 25.97 | 26.15 | 25.81 | 25.97 | 1621 | NASDAQ | ALGN | Fri, Jul 13, 2007 | 25.55 | 26.02 | 25.50 | 25.80 | 1620 | NASDAQ | ALGN | Thu, Jul 12, 2007 | 25.94 | 26.29 | 25.51 | 25.72 | 1619 | NASDAQ | ALGN | Wed, Jul 11, 2007 | 24.40 | 25.78 | 24.35 | 25.74 | 1618 | NASDAQ | ALGN | Tue, Jul 10, 2007 | 24.61 | 24.67 | 24.34 | 24.46 | 1617 | NASDAQ | ALGN | Mon, Jul 9, 2007 | 24.64 | 24.88 | 24.55 | 24.73 | 1616 | NASDAQ | ALGN | Fri, Jul 6, 2007 | 24.46 | 24.68 | 24.31 | 24.55 | 1615 | NASDAQ | ALGN | Thu, Jul 5, 2007 | 24.35 | 24.70 | 24.25 | 24.50 | 1614 | NASDAQ | ALGN | Tue, Jul 3, 2007 | 24.35 | 24.45 | 24.12 | 24.35 | 1613 | NASDAQ | ALGN | Mon, Jul 2, 2007 | 24.23 | 24.51 | 24.09 | 24.30 | 1612 | NASDAQ | ALGN | Fri, Jun 29, 2007 | 24.44 | 24.65 | 24.10 | 24.16 | 1611 | NASDAQ | ALGN | Thu, Jun 28, 2007 | 23.91 | 24.68 | 23.91 | 24.41 | 1610 | NASDAQ | ALGN | Wed, Jun 27, 2007 | 23.45 | 23.91 | 23.08 | 23.88 | 1609 | NASDAQ | ALGN | Tue, Jun 26, 2007 | 23.65 | 23.90 | 23.35 | 23.66 | 1608 | NASDAQ | ALGN | Mon, Jun 25, 2007 | 24.13 | 24.34 | 23.48 | 23.59 | 1607 | NASDAQ | ALGN | Fri, Jun 22, 2007 | 24.74 | 24.87 | 24.09 | 24.26 | 1606 | NASDAQ | ALGN | Thu, Jun 21, 2007 | 24.47 | 24.96 | 24.23 | 24.89 | 1605 | NASDAQ | ALGN | Wed, Jun 20, 2007 | 24.72 | 24.86 | 24.45 | 24.57 | 1604 | NASDAQ | ALGN | Tue, Jun 19, 2007 | 24.77 | 24.85 | 24.51 | 24.65 | 1603 | NASDAQ | ALGN | Mon, Jun 18, 2007 | 24.52 | 24.91 | 24.11 | 24.83 | 1602 | NASDAQ | ALGN | Fri, Jun 15, 2007 | 24.70 | 25.29 | 24.37 | 24.50 | 1601 | NASDAQ | ALGN | Thu, Jun 14, 2007 | 23.71 | 24.65 | 23.71 | 24.44 | 1600 | NASDAQ | ALGN | Wed, Jun 13, 2007 | 23.11 | 24.07 | 23.03 | 23.68 | 1599 | NASDAQ | ALGN | Tue, Jun 12, 2007 | 23.36 | 23.48 | 22.89 | 23.03 | 1598 | NASDAQ | ALGN | Mon, Jun 11, 2007 | 23.01 | 23.54 | 22.85 | 23.44 | 1597 | NASDAQ | ALGN | Fri, Jun 8, 2007 | 22.20 | 23.12 | 22.19 | 23.11 | 1596 | NASDAQ | ALGN | Thu, Jun 7, 2007 | 23.11 | 23.13 | 21.79 | 22.25 | 1595 | NASDAQ | ALGN | Wed, Jun 6, 2007 | 23.23 | 23.28 | 22.99 | 23.03 | 1594 | NASDAQ | ALGN | Tue, Jun 5, 2007 | 23.41 | 23.74 | 22.99 | 23.22 | 1593 | NASDAQ | ALGN | Mon, Jun 4, 2007 | 22.54 | 23.40 | 22.54 | 23.38 | 1592 | NASDAQ | ALGN | Fri, Jun 1, 2007 | 22.99 | 23.35 | 22.42 | 22.70 | 1591 | NASDAQ | ALGN | Thu, May 31, 2007 | 22.95 | 23.83 | 22.63 | 22.79 | 1590 | NASDAQ | ALGN | Wed, May 30, 2007 | 22.39 | 23.01 | 22.30 | 22.94 | 1589 | NASDAQ | ALGN | Tue, May 29, 2007 | 22.70 | 22.70 | 22.21 | 22.60 | 1588 | NASDAQ | ALGN | Fri, May 25, 2007 | 22.42 | 22.68 | 22.18 | 22.64 | 1587 | NASDAQ | ALGN | Thu, May 24, 2007 | 22.51 | 22.75 | 22.10 | 22.30 | 1586 | NASDAQ | ALGN | Wed, May 23, 2007 | 22.59 | 23.05 | 22.51 | 22.67 | 1585 | NASDAQ | ALGN | Tue, May 22, 2007 | 22.77 | 23.00 | 22.48 | 22.51 | 1584 | NASDAQ | ALGN | Mon, May 21, 2007 | 22.44 | 23.09 | 22.30 | 22.68 | 1583 | NASDAQ | ALGN | Fri, May 18, 2007 | 22.29 | 22.50 | 22.10 | 22.36 | 1582 | NASDAQ | ALGN | Thu, May 17, 2007 | 22.53 | 22.58 | 21.99 | 22.22 | 1581 | NASDAQ | ALGN | Wed, May 16, 2007 | 22.37 | 22.63 | 22.09 | 22.60 | 1580 | NASDAQ | ALGN | Tue, May 15, 2007 | 22.54 | 23.00 | 22.17 | 22.34 | 1579 | NASDAQ | ALGN | Mon, May 14, 2007 | 23.01 | 23.10 | 22.38 | 22.61 | 1578 | NASDAQ | ALGN | Fri, May 11, 2007 | 22.70 | 23.37 | 22.53 | 23.10 | 1577 | NASDAQ | ALGN | Thu, May 10, 2007 | 23.27 | 23.31 | 22.52 | 22.58 | 1576 | NASDAQ | ALGN | Wed, May 9, 2007 | 23.17 | 23.39 | 23.01 | 23.32 | 1575 | NASDAQ | ALGN | Tue, May 8, 2007 | 23.40 | 24.19 | 23.09 | 23.33 | 1574 | NASDAQ | ALGN | Mon, May 7, 2007 | 23.34 | 23.60 | 23.30 | 23.47 | 1573 | NASDAQ | ALGN | Fri, May 4, 2007 | 24.05 | 24.05 | 23.06 | 23.50 | 1572 | NASDAQ | ALGN | Thu, May 3, 2007 | 23.30 | 24.18 | 23.28 | 23.93 | 1571 | NASDAQ | ALGN | Wed, May 2, 2007 | 23.86 | 24.01 | 23.25 | 23.40 | 1570 | NASDAQ | ALGN | Tue, May 1, 2007 | 22.70 | 23.95 | 22.60 | 23.90 | 1569 | NASDAQ | ALGN | Mon, Apr 30, 2007 | 22.95 | 23.37 | 22.57 | 22.66 | 1568 | NASDAQ | ALGN | Fri, Apr 27, 2007 | 23.57 | 24.28 | 22.96 | 23.87 | 1567 | NASDAQ | ALGN | Thu, Apr 26, 2007 | 22.18 | 23.94 | 22.17 | 23.60 | 1566 | NASDAQ | ALGN | Wed, Apr 25, 2007 | 17.46 | 17.79 | 17.03 | 17.69 | 1565 | NASDAQ | ALGN | Tue, Apr 24, 2007 | 17.34 | 17.45 | 17.00 | 17.31 | 1564 | NASDAQ | ALGN | Mon, Apr 23, 2007 | 17.58 | 17.75 | 17.02 | 17.45 | 1563 | NASDAQ | ALGN | Fri, Apr 20, 2007 | 16.15 | 17.06 | 16.00 | 16.75 | 1562 | NASDAQ | ALGN | Thu, Apr 19, 2007 | 16.54 | 16.63 | 15.88 | 15.95 | 1561 | NASDAQ | ALGN | Wed, Apr 18, 2007 | 16.82 | 16.94 | 16.55 | 16.56 | 1560 | NASDAQ | ALGN | Tue, Apr 17, 2007 | 17.04 | 17.10 | 16.80 | 16.93 | 1559 | NASDAQ | ALGN | Mon, Apr 16, 2007 | 16.95 | 17.09 | 16.84 | 17.06 | 1558 | NASDAQ | ALGN | Fri, Apr 13, 2007 | 16.66 | 16.92 | 16.59 | 16.92 | 1557 | NASDAQ | ALGN | Thu, Apr 12, 2007 | 16.75 | 16.92 | 16.58 | 16.69 | 1556 | NASDAQ | ALGN | Wed, Apr 11, 2007 | 17.28 | 17.28 | 16.63 | 16.82 | 1555 | NASDAQ | ALGN | Tue, Apr 10, 2007 | 16.53 | 17.29 | 16.53 | 17.21 | 1554 | NASDAQ | ALGN | Mon, Apr 9, 2007 | 16.70 | 16.73 | 16.32 | 16.62 | 1553 | NASDAQ | ALGN | Thu, Apr 5, 2007 | 16.61 | 16.72 | 16.43 | 16.70 | 1552 | NASDAQ | ALGN | Wed, Apr 4, 2007 | 16.53 | 16.67 | 16.29 | 16.54 | 1551 | NASDAQ | ALGN | Tue, Apr 3, 2007 | 15.74 | 16.66 | 15.70 | 16.57 | 1550 | NASDAQ | ALGN | Mon, Apr 2, 2007 | 15.88 | 15.89 | 15.45 | 15.74 | 1549 | NASDAQ | ALGN | Fri, Mar 30, 2007 | 16.13 | 16.13 | 15.72 | 15.86 | 1548 | NASDAQ | ALGN | Thu, Mar 29, 2007 | 16.31 | 16.32 | 15.94 | 16.15 | 1547 | NASDAQ | ALGN | Wed, Mar 28, 2007 | 16.08 | 16.51 | 16.07 | 16.25 | 1546 | NASDAQ | ALGN | Tue, Mar 27, 2007 | 16.17 | 16.32 | 16.03 | 16.22 | 1545 | NASDAQ | ALGN | Mon, Mar 26, 2007 | 16.38 | 16.53 | 16.10 | 16.25 | 1544 | NASDAQ | ALGN | Fri, Mar 23, 2007 | 16.44 | 16.50 | 16.26 | 16.43 | 1543 | NASDAQ | ALGN | Thu, Mar 22, 2007 | 16.54 | 16.54 | 16.16 | 16.43 | 1542 | NASDAQ | ALGN | Wed, Mar 21, 2007 | 16.07 | 16.48 | 15.97 | 16.45 | 1541 | NASDAQ | ALGN | Tue, Mar 20, 2007 | 16.38 | 16.44 | 15.99 | 16.06 | 1540 | NASDAQ | ALGN | Mon, Mar 19, 2007 | 16.10 | 16.50 | 16.00 | 16.38 | 1539 | NASDAQ | ALGN | Fri, Mar 16, 2007 | 16.57 | 16.66 | 15.97 | 16.00 | 1538 | NASDAQ | ALGN | Thu, Mar 15, 2007 | 16.73 | 16.95 | 16.49 | 16.58 | 1537 | NASDAQ | ALGN | Wed, Mar 14, 2007 | 16.18 | 16.83 | 16.18 | 16.70 | 1536 | NASDAQ | ALGN | Tue, Mar 13, 2007 | 16.74 | 16.97 | 16.11 | 16.22 | 1535 | NASDAQ | ALGN | Mon, Mar 12, 2007 | 16.55 | 16.91 | 16.55 | 16.79 | 1534 | NASDAQ | ALGN | Fri, Mar 9, 2007 | 16.62 | 16.63 | 16.36 | 16.59 | 1533 | NASDAQ | ALGN | Thu, Mar 8, 2007 | 16.26 | 16.58 | 16.23 | 16.52 | 1532 | NASDAQ | ALGN | Wed, Mar 7, 2007 | 16.42 | 16.68 | 16.05 | 16.07 | 1531 | NASDAQ | ALGN | Tue, Mar 6, 2007 | 16.44 | 16.80 | 16.29 | 16.40 | 1530 | NASDAQ | ALGN | Mon, Mar 5, 2007 | 16.39 | 16.66 | 16.20 | 16.23 | 1529 | NASDAQ | ALGN | Fri, Mar 2, 2007 | 16.29 | 16.52 | 16.28 | 16.46 | 1528 | NASDAQ | ALGN | Thu, Mar 1, 2007 | 16.08 | 16.71 | 16.01 | 16.31 | 1527 | NASDAQ | ALGN | Wed, Feb 28, 2007 | 16.31 | 16.52 | 15.90 | 16.42 | 1526 | NASDAQ | ALGN | Tue, Feb 27, 2007 | 16.71 | 16.87 | 16.30 | 16.33 | 1525 | NASDAQ | ALGN | Mon, Feb 26, 2007 | 17.19 | 17.34 | 16.92 | 16.98 | 1524 | NASDAQ | ALGN | Fri, Feb 23, 2007 | 17.43 | 17.43 | 17.09 | 17.26 | 1523 | NASDAQ | ALGN | Thu, Feb 22, 2007 | 17.66 | 17.77 | 17.30 | 17.51 | 1522 | NASDAQ | ALGN | Wed, Feb 21, 2007 | 17.73 | 17.89 | 17.51 | 17.58 | 1521 | NASDAQ | ALGN | Tue, Feb 20, 2007 | 17.48 | 17.95 | 17.46 | 17.88 | 1520 | NASDAQ | ALGN | Fri, Feb 16, 2007 | 17.45 | 17.63 | 17.25 | 17.56 | 1519 | NASDAQ | ALGN | Thu, Feb 15, 2007 | 16.97 | 17.55 | 16.90 | 17.46 | 1518 | NASDAQ | ALGN | Wed, Feb 14, 2007 | 16.96 | 17.42 | 16.75 | 16.96 | 1517 | NASDAQ | ALGN | Tue, Feb 13, 2007 | 16.87 | 17.16 | 16.60 | 16.99 | 1516 | NASDAQ | ALGN | Mon, Feb 12, 2007 | 16.99 | 17.00 | 16.30 | 16.75 | 1515 | NASDAQ | ALGN | Fri, Feb 9, 2007 | 16.56 | 16.62 | 16.01 | 16.22 | 1514 | NASDAQ | ALGN | Thu, Feb 8, 2007 | 16.40 | 16.66 | 16.22 | 16.52 | 1513 | NASDAQ | ALGN | Wed, Feb 7, 2007 | 16.39 | 16.59 | 16.25 | 16.42 | 1512 | NASDAQ | ALGN | Tue, Feb 6, 2007 | 16.21 | 16.70 | 16.15 | 16.33 | 1511 | NASDAQ | ALGN | Mon, Feb 5, 2007 | 16.11 | 16.40 | 16.10 | 16.22 | 1510 | NASDAQ | ALGN | Fri, Feb 2, 2007 | 16.19 | 16.55 | 16.16 | 16.47 | 1509 | NASDAQ | ALGN | Thu, Feb 1, 2007 | 16.03 | 16.65 | 15.98 | 16.61 | 1508 | NASDAQ | ALGN | Wed, Jan 31, 2007 | 16.52 | 16.91 | 15.87 | 16.56 | 1507 | NASDAQ | ALGN | Tue, Jan 30, 2007 | 15.76 | 17.01 | 15.76 | 16.69 | 1506 | NASDAQ | ALGN | Mon, Jan 29, 2007 | 14.08 | 14.08 | 13.53 | 13.77 | 1505 | NASDAQ | ALGN | Fri, Jan 26, 2007 | 14.03 | 14.17 | 13.75 | 13.99 | 1504 | NASDAQ | ALGN | Thu, Jan 25, 2007 | 14.22 | 14.25 | 13.84 | 13.99 | 1503 | NASDAQ | ALGN | Wed, Jan 24, 2007 | 14.16 | 14.25 | 14.07 | 14.17 | 1502 | NASDAQ | ALGN | Tue, Jan 23, 2007 | 14.02 | 14.23 | 13.97 | 14.11 | 1501 | NASDAQ | ALGN | Mon, Jan 22, 2007 | 14.40 | 14.42 | 13.97 | 14.00 | 1500 | NASDAQ | ALGN | Fri, Jan 19, 2007 | 14.31 | 14.49 | 14.22 | 14.44 | 1499 | NASDAQ | ALGN | Thu, Jan 18, 2007 | 14.23 | 14.47 | 14.23 | 14.35 | 1498 | NASDAQ | ALGN | Wed, Jan 17, 2007 | 14.32 | 14.54 | 14.23 | 14.27 | 1497 | NASDAQ | ALGN | Tue, Jan 16, 2007 | 14.51 | 14.72 | 14.22 | 14.35 | 1496 | NASDAQ | ALGN | Fri, Jan 12, 2007 | 14.19 | 14.73 | 14.19 | 14.51 | 1495 | NASDAQ | ALGN | Thu, Jan 11, 2007 | 13.94 | 14.22 | 13.91 | 14.10 | 1494 | NASDAQ | ALGN | Wed, Jan 10, 2007 | 13.58 | 13.94 | 13.51 | 13.89 | 1493 | NASDAQ | ALGN | Tue, Jan 9, 2007 | 13.66 | 13.87 | 13.57 | 13.70 | 1492 | NASDAQ | ALGN | Mon, Jan 8, 2007 | 13.62 | 13.76 | 13.20 | 13.68 | 1491 | NASDAQ | ALGN | Fri, Jan 5, 2007 | 13.55 | 13.71 | 13.46 | 13.64 | 1490 | NASDAQ | ALGN | Thu, Jan 4, 2007 | 13.44 | 13.66 | 13.31 | 13.60 | 1489 | NASDAQ | ALGN | Wed, Jan 3, 2007 | 13.97 | 14.08 | 13.07 | 13.35 | 1488 | NASDAQ | ALGN | Fri, Dec 29, 2006 | 14.01 | 14.01 | 13.72 | 13.97 | 1487 | NASDAQ | ALGN | Thu, Dec 28, 2006 | 14.12 | 14.12 | 13.89 | 13.99 | 1486 | NASDAQ | ALGN | Wed, Dec 27, 2006 | 14.15 | 14.25 | 14.01 | 14.11 | 1485 | NASDAQ | ALGN | Tue, Dec 26, 2006 | 13.92 | 14.14 | 13.88 | 14.09 | 1484 | NASDAQ | ALGN | Fri, Dec 22, 2006 | 13.90 | 14.07 | 13.80 | 13.97 | 1483 | NASDAQ | ALGN | Thu, Dec 21, 2006 | 14.00 | 14.23 | 13.76 | 13.96 | 1482 | NASDAQ | ALGN | Wed, Dec 20, 2006 | 12.99 | 13.54 | 12.99 | 13.51 | 1481 | NASDAQ | ALGN | Tue, Dec 19, 2006 | 13.01 | 13.10 | 12.78 | 12.96 | 1480 | NASDAQ | ALGN | Mon, Dec 18, 2006 | 13.57 | 13.59 | 13.01 | 13.13 | 1479 | NASDAQ | ALGN | Fri, Dec 15, 2006 | 13.80 | 13.90 | 13.36 | 13.52 | 1478 | NASDAQ | ALGN | Thu, Dec 14, 2006 | 13.46 | 13.84 | 13.34 | 13.61 | 1477 | NASDAQ | ALGN | Wed, Dec 13, 2006 | 13.73 | 13.96 | 13.47 | 13.50 | 1476 | NASDAQ | ALGN | Tue, Dec 12, 2006 | 14.00 | 14.21 | 13.69 | 13.71 | 1475 | NASDAQ | ALGN | Mon, Dec 11, 2006 | 14.09 | 14.25 | 13.99 | 14.02 | 1474 | NASDAQ | ALGN | Fri, Dec 8, 2006 | 14.00 | 14.34 | 13.91 | 14.16 | 1473 | NASDAQ | ALGN | Thu, Dec 7, 2006 | 14.11 | 14.20 | 14.00 | 14.05 | 1472 | NASDAQ | ALGN | Wed, Dec 6, 2006 | 14.14 | 14.28 | 13.98 | 14.07 | 1471 | NASDAQ | ALGN | Tue, Dec 5, 2006 | 13.59 | 14.25 | 13.45 | 14.22 | 1470 | NASDAQ | ALGN | Mon, Dec 4, 2006 | 13.09 | 13.60 | 13.00 | 13.51 | 1469 | NASDAQ | ALGN | Fri, Dec 1, 2006 | 13.05 | 13.30 | 13.00 | 13.08 | 1468 | NASDAQ | ALGN | Thu, Nov 30, 2006 | 13.15 | 13.25 | 12.99 | 13.12 | 1467 | NASDAQ | ALGN | Wed, Nov 29, 2006 | 13.10 | 13.34 | 13.07 | 13.25 | 1466 | NASDAQ | ALGN | Tue, Nov 28, 2006 | 13.00 | 13.13 | 12.81 | 13.08 | 1465 | NASDAQ | ALGN | Mon, Nov 27, 2006 | 13.15 | 13.24 | 12.90 | 13.00 | 1464 | NASDAQ | ALGN | Fri, Nov 24, 2006 | 13.25 | 13.34 | 13.07 | 13.22 | 1463 | NASDAQ | ALGN | Wed, Nov 22, 2006 | 13.15 | 13.64 | 13.15 | 13.35 | 1462 | NASDAQ | ALGN | Tue, Nov 21, 2006 | 13.00 | 13.25 | 12.94 | 13.15 | 1461 | NASDAQ | ALGN | Mon, Nov 20, 2006 | 12.94 | 13.06 | 12.82 | 13.01 | 1460 | NASDAQ | ALGN | Fri, Nov 17, 2006 | 12.95 | 12.99 | 12.70 | 12.95 | 1459 | NASDAQ | ALGN | Thu, Nov 16, 2006 | 12.91 | 13.04 | 12.83 | 12.95 | 1458 | NASDAQ | ALGN | Wed, Nov 15, 2006 | 12.82 | 13.22 | 12.78 | 12.96 | 1457 | NASDAQ | ALGN | Tue, Nov 14, 2006 | 12.65 | 12.90 | 12.57 | 12.85 | 1456 | NASDAQ | ALGN | Mon, Nov 13, 2006 | 12.74 | 12.97 | 12.55 | 12.67 | 1455 | NASDAQ | ALGN | Fri, Nov 10, 2006 | 12.71 | 12.83 | 12.60 | 12.83 | 1454 | NASDAQ | ALGN | Thu, Nov 9, 2006 | 13.16 | 13.17 | 12.60 | 12.76 | 1453 | NASDAQ | ALGN | Wed, Nov 8, 2006 | 13.10 | 13.20 | 12.80 | 13.17 | 1452 | NASDAQ | ALGN | Tue, Nov 7, 2006 | 12.95 | 13.44 | 12.92 | 13.22 | 1451 | NASDAQ | ALGN | Mon, Nov 6, 2006 | 12.91 | 13.06 | 12.81 | 12.99 | 1450 | NASDAQ | ALGN | Fri, Nov 3, 2006 | 13.06 | 13.21 | 12.83 | 13.00 | 1449 | NASDAQ | ALGN | Thu, Nov 2, 2006 | 12.92 | 13.36 | 12.92 | 12.99 | 1448 | NASDAQ | ALGN | Wed, Nov 1, 2006 | 13.78 | 13.85 | 12.85 | 12.92 | 1447 | NASDAQ | ALGN | Tue, Oct 31, 2006 | 13.90 | 14.16 | 13.74 | 13.86 | 1446 | NASDAQ | ALGN | Mon, Oct 30, 2006 | 14.21 | 14.66 | 13.96 | 14.53 | 1445 | NASDAQ | ALGN | Fri, Oct 27, 2006 | 14.35 | 14.58 | 14.27 | 14.50 | 1444 | NASDAQ | ALGN | Thu, Oct 26, 2006 | 14.20 | 14.50 | 14.10 | 14.38 | 1443 | NASDAQ | ALGN | Wed, Oct 25, 2006 | 13.75 | 14.42 | 13.22 | 14.22 | 1442 | NASDAQ | ALGN | Tue, Oct 24, 2006 | 14.19 | 14.19 | 13.76 | 14.13 | 1441 | NASDAQ | ALGN | Mon, Oct 23, 2006 | 14.02 | 14.28 | 13.83 | 14.12 | 1440 | NASDAQ | ALGN | Fri, Oct 20, 2006 | 14.18 | 14.22 | 13.91 | 14.12 | 1439 | NASDAQ | ALGN | Thu, Oct 19, 2006 | 13.97 | 14.15 | 13.80 | 14.13 | 1438 | NASDAQ | ALGN | Wed, Oct 18, 2006 | 14.83 | 14.94 | 13.83 | 14.04 | 1437 | NASDAQ | ALGN | Tue, Oct 17, 2006 | 14.85 | 14.94 | 14.27 | 14.72 | 1436 | NASDAQ | ALGN | Mon, Oct 16, 2006 | 15.00 | 15.13 | 14.60 | 14.96 | 1435 | NASDAQ | ALGN | Fri, Oct 13, 2006 | 14.70 | 15.33 | 14.68 | 15.03 | 1434 | NASDAQ | ALGN | Thu, Oct 12, 2006 | 13.95 | 14.71 | 13.87 | 14.66 | 1433 | NASDAQ | ALGN | Wed, Oct 11, 2006 | 13.77 | 13.91 | 13.54 | 13.88 | 1432 | NASDAQ | ALGN | Tue, Oct 10, 2006 | 13.35 | 13.90 | 13.26 | 13.74 | 1431 | NASDAQ | ALGN | Mon, Oct 9, 2006 | 13.58 | 13.76 | 13.08 | 13.38 | 1430 | NASDAQ | ALGN | Fri, Oct 6, 2006 | 13.00 | 13.65 | 12.79 | 13.61 | 1429 | NASDAQ | ALGN | Thu, Oct 5, 2006 | 11.70 | 12.95 | 11.60 | 12.94 | 1428 | NASDAQ | ALGN | Wed, Oct 4, 2006 | 11.33 | 11.87 | 11.31 | 11.74 | 1427 | NASDAQ | ALGN | Tue, Oct 3, 2006 | 11.00 | 11.39 | 11.00 | 11.38 | 1426 | NASDAQ | ALGN | Mon, Oct 2, 2006 | 11.30 | 11.56 | 11.03 | 11.31 | 1425 | NASDAQ | ALGN | Fri, Sep 29, 2006 | 11.58 | 12.02 | 11.20 | 11.38 | 1424 | NASDAQ | ALGN | Thu, Sep 28, 2006 | 12.99 | 13.34 | 10.87 | 11.56 | 1423 | NASDAQ | ALGN | Wed, Sep 27, 2006 | 7.65 | 8.06 | 7.52 | 7.80 | 1422 | NASDAQ | ALGN | Tue, Sep 26, 2006 | 6.95 | 7.79 | 6.95 | 7.65 | 1421 | NASDAQ | ALGN | Mon, Sep 25, 2006 | 6.80 | 6.99 | 6.70 | 6.98 | 1420 | NASDAQ | ALGN | Fri, Sep 22, 2006 | 6.53 | 7.06 | 6.53 | 6.71 | 1419 | NASDAQ | ALGN | Thu, Sep 21, 2006 | 6.68 | 6.70 | 6.48 | 6.57 | 1418 | NASDAQ | ALGN | Wed, Sep 20, 2006 | 6.64 | 6.73 | 6.55 | 6.64 | 1417 | NASDAQ | ALGN | Tue, Sep 19, 2006 | 6.69 | 6.71 | 6.35 | 6.56 | 1416 | NASDAQ | ALGN | Mon, Sep 18, 2006 | 6.71 | 6.78 | 6.67 | 6.71 | 1415 | NASDAQ | ALGN | Fri, Sep 15, 2006 | 6.82 | 6.83 | 6.62 | 6.76 | 1414 | NASDAQ | ALGN | Thu, Sep 14, 2006 | 6.70 | 6.76 | 6.60 | 6.76 | 1413 | NASDAQ | ALGN | Wed, Sep 13, 2006 | 6.46 | 6.70 | 6.41 | 6.70 | 1412 | NASDAQ | ALGN | Tue, Sep 12, 2006 | 6.28 | 6.45 | 6.28 | 6.45 | 1411 | NASDAQ | ALGN | Mon, Sep 11, 2006 | 6.09 | 6.30 | 6.09 | 6.25 | 1410 | NASDAQ | ALGN | Fri, Sep 8, 2006 | 6.22 | 6.23 | 6.10 | 6.15 | 1409 | NASDAQ | ALGN | Thu, Sep 7, 2006 | 6.32 | 6.42 | 6.23 | 6.23 | 1408 | NASDAQ | ALGN | Wed, Sep 6, 2006 | 6.39 | 6.45 | 6.19 | 6.38 | 1407 | NASDAQ | ALGN | Tue, Sep 5, 2006 | 6.15 | 6.41 | 6.14 | 6.39 | 1406 | NASDAQ | ALGN | Fri, Sep 1, 2006 | 6.26 | 6.31 | 6.06 | 6.11 | 1405 | NASDAQ | ALGN | Thu, Aug 31, 2006 | 6.01 | 6.27 | 5.96 | 6.25 | 1404 | NASDAQ | ALGN | Wed, Aug 30, 2006 | 6.18 | 6.28 | 5.97 | 6.06 | 1403 | NASDAQ | ALGN | Tue, Aug 29, 2006 | 6.05 | 6.14 | 5.88 | 6.14 | 1402 | NASDAQ | ALGN | Mon, Aug 28, 2006 | 5.67 | 6.08 | 5.67 | 6.01 | 1401 | NASDAQ | ALGN | Fri, Aug 25, 2006 | 5.65 | 5.73 | 5.65 | 5.69 | 1400 | NASDAQ | ALGN | Thu, Aug 24, 2006 | 5.80 | 5.90 | 5.62 | 5.66 | 1399 | NASDAQ | ALGN | Wed, Aug 23, 2006 | 5.90 | 5.96 | 5.76 | 5.81 | 1398 | NASDAQ | ALGN | Tue, Aug 22, 2006 | 5.85 | 5.95 | 5.84 | 5.89 | 1397 | NASDAQ | ALGN | Mon, Aug 21, 2006 | 5.93 | 5.97 | 5.80 | 5.88 | 1396 | NASDAQ | ALGN | Fri, Aug 18, 2006 | 5.99 | 6.00 | 5.91 | 5.94 | 1395 | NASDAQ | ALGN | Thu, Aug 17, 2006 | 5.85 | 6.08 | 5.85 | 5.95 | 1394 | NASDAQ | ALGN | Wed, Aug 16, 2006 | 5.99 | 6.00 | 5.86 | 5.89 | 1393 | NASDAQ | ALGN | Tue, Aug 15, 2006 | 5.93 | 5.99 | 5.81 | 5.92 | 1392 | NASDAQ | ALGN | Mon, Aug 14, 2006 | 5.89 | 5.97 | 5.83 | 5.84 | 1391 | NASDAQ | ALGN | Fri, Aug 11, 2006 | 5.93 | 5.96 | 5.80 | 5.82 | 1390 | NASDAQ | ALGN | Thu, Aug 10, 2006 | 5.90 | 6.09 | 5.90 | 5.97 | 1389 | NASDAQ | ALGN | Wed, Aug 9, 2006 | 6.07 | 6.09 | 5.94 | 5.96 | 1388 | NASDAQ | ALGN | Tue, Aug 8, 2006 | 6.15 | 6.21 | 5.92 | 6.04 | 1387 | NASDAQ | ALGN | Mon, Aug 7, 2006 | 6.30 | 6.30 | 6.02 | 6.11 | 1386 | NASDAQ | ALGN | Fri, Aug 4, 2006 | 6.60 | 6.75 | 6.19 | 6.34 | 1385 | NASDAQ | ALGN | Thu, Aug 3, 2006 | 6.55 | 6.62 | 6.32 | 6.52 | 1384 | NASDAQ | ALGN | Wed, Aug 2, 2006 | 6.85 | 6.85 | 6.49 | 6.61 | 1383 | NASDAQ | ALGN | Tue, Aug 1, 2006 | 6.61 | 6.88 | 6.47 | 6.80 | 1382 | NASDAQ | ALGN | Mon, Jul 31, 2006 | 6.78 | 6.83 | 6.62 | 6.76 | 1381 | NASDAQ | ALGN | Fri, Jul 28, 2006 | 6.66 | 6.77 | 6.46 | 6.76 | 1380 | NASDAQ | ALGN | Thu, Jul 27, 2006 | 6.64 | 6.89 | 6.59 | 6.63 | 1379 | NASDAQ | ALGN | Wed, Jul 26, 2006 | 6.61 | 6.91 | 6.15 | 6.89 | 1378 | NASDAQ | ALGN | Tue, Jul 25, 2006 | 6.65 | 6.81 | 6.52 | 6.74 | 1377 | NASDAQ | ALGN | Mon, Jul 24, 2006 | 6.51 | 6.83 | 6.51 | 6.67 | 1376 | NASDAQ | ALGN | Fri, Jul 21, 2006 | 6.60 | 6.64 | 6.41 | 6.51 | 1375 | NASDAQ | ALGN | Thu, Jul 20, 2006 | 6.84 | 6.88 | 6.53 | 6.62 | 1374 | NASDAQ | ALGN | Wed, Jul 19, 2006 | 6.58 | 6.98 | 6.51 | 6.84 | 1373 | NASDAQ | ALGN | Tue, Jul 18, 2006 | 6.55 | 6.73 | 6.50 | 6.60 | 1372 | NASDAQ | ALGN | Mon, Jul 17, 2006 | 6.66 | 6.73 | 6.44 | 6.55 | 1371 | NASDAQ | ALGN | Fri, Jul 14, 2006 | 6.69 | 6.74 | 6.45 | 6.67 | 1370 | NASDAQ | ALGN | Thu, Jul 13, 2006 | 6.75 | 6.86 | 6.62 | 6.66 | 1369 | NASDAQ | ALGN | Wed, Jul 12, 2006 | 6.94 | 6.96 | 6.77 | 6.85 | 1368 | NASDAQ | ALGN | Tue, Jul 11, 2006 | 6.92 | 7.00 | 6.84 | 6.99 | 1367 | NASDAQ | ALGN | Mon, Jul 10, 2006 | 6.91 | 7.02 | 6.48 | 6.98 | 1366 | NASDAQ | ALGN | Fri, Jul 7, 2006 | 7.31 | 7.44 | 7.09 | 7.20 | 1365 | NASDAQ | ALGN | Thu, Jul 6, 2006 | 7.50 | 7.52 | 7.28 | 7.35 | 1364 | NASDAQ | ALGN | Wed, Jul 5, 2006 | 7.50 | 7.56 | 7.35 | 7.50 | 1363 | NASDAQ | ALGN | Mon, Jul 3, 2006 | 7.42 | 7.68 | 7.29 | 7.59 | 1362 | NASDAQ | ALGN | Fri, Jun 30, 2006 | 7.29 | 7.39 | 7.18 | 7.39 | 1361 | NASDAQ | ALGN | Thu, Jun 29, 2006 | 7.06 | 7.28 | 7.02 | 7.24 | 1360 | NASDAQ | ALGN | Wed, Jun 28, 2006 | 7.15 | 7.20 | 7.02 | 7.05 | 1359 | NASDAQ | ALGN | Tue, Jun 27, 2006 | 7.50 | 7.50 | 7.09 | 7.16 | 1358 | NASDAQ | ALGN | Mon, Jun 26, 2006 | 7.53 | 7.58 | 7.40 | 7.49 | 1357 | NASDAQ | ALGN | Fri, Jun 23, 2006 | 7.40 | 7.52 | 7.31 | 7.50 | 1356 | NASDAQ | ALGN | Thu, Jun 22, 2006 | 7.51 | 7.59 | 7.31 | 7.44 | 1355 | NASDAQ | ALGN | Wed, Jun 21, 2006 | 7.58 | 7.63 | 7.42 | 7.55 | 1354 | NASDAQ | ALGN | Tue, Jun 20, 2006 | 7.58 | 7.68 | 7.53 | 7.62 | 1353 | NASDAQ | ALGN | Mon, Jun 19, 2006 | 7.64 | 7.68 | 7.51 | 7.60 | 1352 | NASDAQ | ALGN | Fri, Jun 16, 2006 | 7.58 | 7.64 | 7.42 | 7.59 | 1351 | NASDAQ | ALGN | Thu, Jun 15, 2006 | 7.43 | 7.61 | 7.43 | 7.57 | 1350 | NASDAQ | ALGN | Wed, Jun 14, 2006 | 7.66 | 7.66 | 7.27 | 7.39 | 1349 | NASDAQ | ALGN | Tue, Jun 13, 2006 | 7.41 | 7.85 | 7.40 | 7.64 | 1348 | NASDAQ | ALGN | Mon, Jun 12, 2006 | 7.65 | 7.69 | 7.40 | 7.45 | 1347 | NASDAQ | ALGN | Fri, Jun 9, 2006 | 7.94 | 7.95 | 7.63 | 7.66 | 1346 | NASDAQ | ALGN | Thu, Jun 8, 2006 | 7.84 | 8.00 | 7.62 | 7.93 | 1345 | NASDAQ | ALGN | Wed, Jun 7, 2006 | 7.68 | 8.01 | 7.52 | 7.85 | 1344 | NASDAQ | ALGN | Tue, Jun 6, 2006 | 7.59 | 7.74 | 7.50 | 7.69 | 1343 | NASDAQ | ALGN | Mon, Jun 5, 2006 | 7.79 | 7.79 | 7.45 | 7.57 | 1342 | NASDAQ | ALGN | Fri, Jun 2, 2006 | 7.52 | 8.15 | 7.52 | 7.79 | 1341 | NASDAQ | ALGN | Thu, Jun 1, 2006 | 7.43 | 7.49 | 7.37 | 7.45 | 1340 | NASDAQ | ALGN | Wed, May 31, 2006 | 7.37 | 7.48 | 7.32 | 7.39 | 1339 | NASDAQ | ALGN | Tue, May 30, 2006 | 7.55 | 7.57 | 7.29 | 7.37 | 1338 | NASDAQ | ALGN | Fri, May 26, 2006 | 7.60 | 7.70 | 7.50 | 7.62 | 1337 | NASDAQ | ALGN | Thu, May 25, 2006 | 7.43 | 7.57 | 7.32 | 7.57 | 1336 | NASDAQ | ALGN | Wed, May 24, 2006 | 7.14 | 7.37 | 6.98 | 7.35 | 1335 | NASDAQ | ALGN | Tue, May 23, 2006 | 7.60 | 7.68 | 7.10 | 7.19 | 1334 | NASDAQ | ALGN | Mon, May 22, 2006 | 7.42 | 7.62 | 7.33 | 7.53 | 1333 | NASDAQ | ALGN | Fri, May 19, 2006 | 7.69 | 7.71 | 7.39 | 7.49 | 1332 | NASDAQ | ALGN | Thu, May 18, 2006 | 7.75 | 7.84 | 7.66 | 7.66 | 1331 | NASDAQ | ALGN | Wed, May 17, 2006 | 7.73 | 7.81 | 7.56 | 7.76 | 1330 | NASDAQ | ALGN | Tue, May 16, 2006 | 7.77 | 7.94 | 7.69 | 7.81 | 1329 | NASDAQ | ALGN | Mon, May 15, 2006 | 7.64 | 8.00 | 7.64 | 7.77 | 1328 | NASDAQ | ALGN | Fri, May 12, 2006 | 7.92 | 8.00 | 7.52 | 7.75 | 1327 | NASDAQ | ALGN | Thu, May 11, 2006 | 8.10 | 8.15 | 7.93 | 7.98 | 1326 | NASDAQ | ALGN | Wed, May 10, 2006 | 8.32 | 8.33 | 8.04 | 8.12 | 1325 | NASDAQ | ALGN | Tue, May 9, 2006 | 8.46 | 8.55 | 8.25 | 8.30 | 1324 | NASDAQ | ALGN | Mon, May 8, 2006 | 8.62 | 8.67 | 8.46 | 8.51 | 1323 | NASDAQ | ALGN | Fri, May 5, 2006 | 8.47 | 8.69 | 8.27 | 8.60 | 1322 | NASDAQ | ALGN | Thu, May 4, 2006 | 8.33 | 8.44 | 8.25 | 8.39 | 1321 | NASDAQ | ALGN | Wed, May 3, 2006 | 8.77 | 8.81 | 8.31 | 8.36 | 1320 | NASDAQ | ALGN | Tue, May 2, 2006 | 9.35 | 9.40 | 8.68 | 8.77 | 1319 | NASDAQ | ALGN | Mon, May 1, 2006 | 8.79 | 9.07 | 8.68 | 8.89 | 1318 | NASDAQ | ALGN | Fri, Apr 28, 2006 | 8.49 | 8.85 | 8.37 | 8.79 | 1317 | NASDAQ | ALGN | Thu, Apr 27, 2006 | 8.43 | 8.73 | 8.27 | 8.56 | 1316 | NASDAQ | ALGN | Wed, Apr 26, 2006 | 9.55 | 9.62 | 8.20 | 8.54 | 1315 | NASDAQ | ALGN | Tue, Apr 25, 2006 | 9.11 | 9.27 | 8.92 | 9.22 | 1314 | NASDAQ | ALGN | Mon, Apr 24, 2006 | 9.20 | 9.27 | 9.09 | 9.16 | 1313 | NASDAQ | ALGN | Fri, Apr 21, 2006 | 9.44 | 9.57 | 9.09 | 9.15 | 1312 | NASDAQ | ALGN | Thu, Apr 20, 2006 | 9.49 | 9.52 | 9.31 | 9.46 | 1311 | NASDAQ | ALGN | Wed, Apr 19, 2006 | 9.48 | 9.75 | 9.32 | 9.52 | 1310 | NASDAQ | ALGN | Tue, Apr 18, 2006 | 9.00 | 9.53 | 8.99 | 9.43 | 1309 | NASDAQ | ALGN | Mon, Apr 17, 2006 | 9.01 | 9.19 | 8.91 | 9.01 | 1308 | NASDAQ | ALGN | Thu, Apr 13, 2006 | 9.03 | 9.08 | 8.90 | 9.05 | 1307 | NASDAQ | ALGN | Wed, Apr 12, 2006 | 8.70 | 9.01 | 8.68 | 9.01 | 1306 | NASDAQ | ALGN | Tue, Apr 11, 2006 | 8.94 | 8.95 | 8.72 | 8.74 | 1305 | NASDAQ | ALGN | Mon, Apr 10, 2006 | 8.87 | 8.94 | 8.72 | 8.92 | 1304 | NASDAQ | ALGN | Fri, Apr 7, 2006 | 8.88 | 9.10 | 8.81 | 8.91 | 1303 | NASDAQ | ALGN | Thu, Apr 6, 2006 | 8.93 | 8.99 | 8.83 | 8.91 | 1302 | NASDAQ | ALGN | Wed, Apr 5, 2006 | 9.02 | 9.07 | 8.88 | 8.98 | 1301 | NASDAQ | ALGN | Tue, Apr 4, 2006 | 8.99 | 9.17 | 8.76 | 9.04 | 1300 | NASDAQ | ALGN | Mon, Apr 3, 2006 | 9.15 | 9.32 | 8.97 | 9.03 | 1299 | NASDAQ | ALGN | Fri, Mar 31, 2006 | 9.32 | 9.39 | 9.05 | 9.17 | 1298 | NASDAQ | ALGN | Thu, Mar 30, 2006 | 9.21 | 9.43 | 9.05 | 9.33 | 1297 | NASDAQ | ALGN | Wed, Mar 29, 2006 | 9.00 | 9.25 | 9.00 | 9.21 | 1296 | NASDAQ | ALGN | Tue, Mar 28, 2006 | 9.05 | 9.16 | 8.89 | 9.02 | 1295 | NASDAQ | ALGN | Mon, Mar 27, 2006 | 8.96 | 9.07 | 8.93 | 9.00 | 1294 | NASDAQ | ALGN | Fri, Mar 24, 2006 | 8.70 | 8.99 | 8.69 | 8.97 | 1293 | NASDAQ | ALGN | Thu, Mar 23, 2006 | 8.72 | 8.87 | 8.62 | 8.67 | 1292 | NASDAQ | ALGN | Wed, Mar 22, 2006 | 8.79 | 8.94 | 8.61 | 8.76 | 1291 | NASDAQ | ALGN | Tue, Mar 21, 2006 | 9.24 | 9.24 | 8.75 | 8.77 | 1290 | NASDAQ | ALGN | Mon, Mar 20, 2006 | 9.05 | 9.45 | 8.77 | 9.23 | 1289 | NASDAQ | ALGN | Fri, Mar 17, 2006 | 8.49 | 9.16 | 8.22 | 9.05 | 1288 | NASDAQ | ALGN | Thu, Mar 16, 2006 | 8.41 | 8.46 | 8.32 | 8.45 | 1287 | NASDAQ | ALGN | Wed, Mar 15, 2006 | 8.29 | 8.43 | 8.12 | 8.42 | 1286 | NASDAQ | ALGN | Tue, Mar 14, 2006 | 8.36 | 8.36 | 8.16 | 8.26 | 1285 | NASDAQ | ALGN | Mon, Mar 13, 2006 | 8.18 | 8.49 | 8.18 | 8.40 | 1284 | NASDAQ | ALGN | Fri, Mar 10, 2006 | 7.99 | 8.25 | 7.99 | 8.21 | 1283 | NASDAQ | ALGN | Thu, Mar 9, 2006 | 8.04 | 8.10 | 7.97 | 8.01 | 1282 | NASDAQ | ALGN | Wed, Mar 8, 2006 | 8.10 | 8.17 | 8.01 | 8.07 | 1281 | NASDAQ | ALGN | Tue, Mar 7, 2006 | 8.20 | 8.30 | 8.10 | 8.13 | 1280 | NASDAQ | ALGN | Mon, Mar 6, 2006 | 8.39 | 8.44 | 8.13 | 8.30 | 1279 | NASDAQ | ALGN | Fri, Mar 3, 2006 | 8.51 | 8.62 | 8.29 | 8.43 | 1278 | NASDAQ | ALGN | Thu, Mar 2, 2006 | 8.50 | 8.70 | 8.34 | 8.58 | 1277 | NASDAQ | ALGN | Wed, Mar 1, 2006 | 8.11 | 8.52 | 8.11 | 8.46 | 1276 | NASDAQ | ALGN | Tue, Feb 28, 2006 | 8.20 | 8.28 | 8.10 | 8.16 | 1275 | NASDAQ | ALGN | Mon, Feb 27, 2006 | 8.26 | 8.35 | 7.90 | 8.25 | 1274 | NASDAQ | ALGN | Fri, Feb 24, 2006 | 8.30 | 8.40 | 8.17 | 8.38 | 1273 | NASDAQ | ALGN | Thu, Feb 23, 2006 | 8.17 | 8.45 | 8.08 | 8.34 | 1272 | NASDAQ | ALGN | Wed, Feb 22, 2006 | 8.05 | 8.24 | 7.99 | 8.21 | 1271 | NASDAQ | ALGN | Tue, Feb 21, 2006 | 8.45 | 8.48 | 7.93 | 8.00 | 1270 | NASDAQ | ALGN | Fri, Feb 17, 2006 | 8.35 | 8.50 | 8.27 | 8.41 | 1269 | NASDAQ | ALGN | Thu, Feb 16, 2006 | 8.34 | 8.50 | 8.20 | 8.31 | 1268 | NASDAQ | ALGN | Wed, Feb 15, 2006 | 8.13 | 8.40 | 8.10 | 8.33 | 1267 | NASDAQ | ALGN | Tue, Feb 14, 2006 | 8.18 | 8.37 | 8.10 | 8.17 | 1266 | NASDAQ | ALGN | Mon, Feb 13, 2006 | 8.19 | 8.24 | 7.96 | 8.12 | 1265 | NASDAQ | ALGN | Fri, Feb 10, 2006 | 8.36 | 8.48 | 8.10 | 8.25 | 1264 | NASDAQ | ALGN | Thu, Feb 9, 2006 | 7.99 | 8.56 | 7.89 | 8.41 | 1263 | NASDAQ | ALGN | Wed, Feb 8, 2006 | 7.96 | 8.06 | 7.90 | 8.01 | 1262 | NASDAQ | ALGN | Tue, Feb 7, 2006 | 8.01 | 8.08 | 7.75 | 7.90 | 1261 | NASDAQ | ALGN | Mon, Feb 6, 2006 | 7.90 | 8.13 | 7.88 | 8.08 | 1260 | NASDAQ | ALGN | Fri, Feb 3, 2006 | 7.95 | 8.15 | 7.83 | 7.91 | 1259 | NASDAQ | ALGN | Thu, Feb 2, 2006 | 7.81 | 7.99 | 7.78 | 7.87 | 1258 | NASDAQ | ALGN | Wed, Feb 1, 2006 | 8.06 | 8.19 | 7.81 | 7.88 | 1257 | NASDAQ | ALGN | Tue, Jan 31, 2006 | 8.04 | 8.25 | 7.97 | 8.18 | 1256 | NASDAQ | ALGN | Mon, Jan 30, 2006 | 8.42 | 8.44 | 8.17 | 8.21 | 1255 | NASDAQ | ALGN | Fri, Jan 27, 2006 | 8.44 | 8.53 | 8.29 | 8.40 | 1254 | NASDAQ | ALGN | Thu, Jan 26, 2006 | 8.14 | 8.61 | 8.14 | 8.54 | 1253 | NASDAQ | ALGN | Wed, Jan 25, 2006 | 7.63 | 8.69 | 7.55 | 8.05 | 1252 | NASDAQ | ALGN | Tue, Jan 24, 2006 | 7.44 | 7.63 | 7.39 | 7.53 | 1251 | NASDAQ | ALGN | Mon, Jan 23, 2006 | 7.48 | 7.65 | 7.26 | 7.48 | 1250 | NASDAQ | ALGN | Fri, Jan 20, 2006 | 7.64 | 7.75 | 7.58 | 7.59 | 1249 | NASDAQ | ALGN | Thu, Jan 19, 2006 | 7.80 | 7.93 | 7.58 | 7.61 | 1248 | NASDAQ | ALGN | Wed, Jan 18, 2006 | 8.26 | 8.29 | 7.72 | 7.81 | 1247 | NASDAQ | ALGN | Tue, Jan 17, 2006 | 7.38 | 8.48 | 7.36 | 8.37 | 1246 | NASDAQ | ALGN | Fri, Jan 13, 2006 | 6.83 | 7.56 | 6.83 | 7.46 | 1245 | NASDAQ | ALGN | Thu, Jan 12, 2006 | 6.59 | 6.90 | 6.43 | 6.85 | 1244 | NASDAQ | ALGN | Wed, Jan 11, 2006 | 6.32 | 6.33 | 6.13 | 6.25 | 1243 | NASDAQ | ALGN | Tue, Jan 10, 2006 | 6.34 | 6.35 | 6.18 | 6.33 | 1242 | NASDAQ | ALGN | Mon, Jan 9, 2006 | 6.15 | 6.36 | 6.15 | 6.34 | 1241 | NASDAQ | ALGN | Fri, Jan 6, 2006 | 6.25 | 6.35 | 6.12 | 6.19 | 1240 | NASDAQ | ALGN | Thu, Jan 5, 2006 | 6.12 | 6.28 | 6.08 | 6.21 | 1239 | NASDAQ | ALGN | Wed, Jan 4, 2006 | 6.30 | 6.30 | 6.06 | 6.08 | 1238 | NASDAQ | ALGN | Tue, Jan 3, 2006 | 6.35 | 6.39 | 5.96 | 6.28 | 1237 | NASDAQ | ALGN | Fri, Dec 30, 2005 | 6.35 | 6.53 | 6.27 | 6.47 | 1236 | NASDAQ | ALGN | Thu, Dec 29, 2005 | 6.50 | 6.59 | 6.39 | 6.40 | 1235 | NASDAQ | ALGN | Wed, Dec 28, 2005 | 6.35 | 6.43 | 6.30 | 6.39 | 1234 | NASDAQ | ALGN | Tue, Dec 27, 2005 | 6.73 | 6.76 | 6.36 | 6.39 | 1233 | NASDAQ | ALGN | Fri, Dec 23, 2005 | 6.63 | 6.78 | 6.53 | 6.77 | 1232 | NASDAQ | ALGN | Thu, Dec 22, 2005 | 6.56 | 6.69 | 6.56 | 6.67 | 1231 | NASDAQ | ALGN | Wed, Dec 21, 2005 | 6.48 | 6.64 | 6.46 | 6.60 | 1230 | NASDAQ | ALGN | Tue, Dec 20, 2005 | 6.55 | 6.60 | 6.45 | 6.52 | 1229 | NASDAQ | ALGN | Mon, Dec 19, 2005 | 6.85 | 6.85 | 6.50 | 6.59 | 1228 | NASDAQ | ALGN | Fri, Dec 16, 2005 | 6.76 | 6.93 | 6.75 | 6.79 | 1227 | NASDAQ | ALGN | Thu, Dec 15, 2005 | 6.76 | 6.81 | 6.60 | 6.80 | 1226 | NASDAQ | ALGN | Wed, Dec 14, 2005 | 6.85 | 6.91 | 6.61 | 6.81 | 1225 | NASDAQ | ALGN | Tue, Dec 13, 2005 | 6.85 | 6.96 | 6.83 | 6.86 | 1224 | NASDAQ | ALGN | Mon, Dec 12, 2005 | 6.90 | 7.00 | 6.78 | 6.87 | 1223 | NASDAQ | ALGN | Fri, Dec 9, 2005 | 7.05 | 7.13 | 6.83 | 6.91 | 1222 | NASDAQ | ALGN | Thu, Dec 8, 2005 | 6.69 | 7.10 | 6.61 | 7.07 | 1221 | NASDAQ | ALGN | Wed, Dec 7, 2005 | 6.80 | 6.89 | 6.62 | 6.63 | 1220 | NASDAQ | ALGN | Tue, Dec 6, 2005 | 6.75 | 6.90 | 6.75 | 6.76 | 1219 | NASDAQ | ALGN | Mon, Dec 5, 2005 | 6.89 | 6.91 | 6.63 | 6.77 | 1218 | NASDAQ | ALGN | Fri, Dec 2, 2005 | 6.84 | 6.99 | 6.82 | 6.91 | 1217 | NASDAQ | ALGN | Thu, Dec 1, 2005 | 6.92 | 7.03 | 6.88 | 6.89 | 1216 | NASDAQ | ALGN | Wed, Nov 30, 2005 | 6.84 | 6.95 | 6.79 | 6.92 | 1215 | NASDAQ | ALGN | Tue, Nov 29, 2005 | 6.86 | 6.95 | 6.69 | 6.84 | 1214 | NASDAQ | ALGN | Mon, Nov 28, 2005 | 6.90 | 7.03 | 6.75 | 6.78 | 1213 | NASDAQ | ALGN | Fri, Nov 25, 2005 | 6.75 | 6.90 | 6.71 | 6.90 | 1212 | NASDAQ | ALGN | Wed, Nov 23, 2005 | 6.30 | 6.78 | 6.29 | 6.75 | 1211 | NASDAQ | ALGN | Tue, Nov 22, 2005 | 6.24 | 6.36 | 6.20 | 6.29 | 1210 | NASDAQ | ALGN | Mon, Nov 21, 2005 | 6.44 | 6.50 | 6.22 | 6.27 | 1209 | NASDAQ | ALGN | Fri, Nov 18, 2005 | 6.34 | 6.48 | 6.22 | 6.44 | 1208 | NASDAQ | ALGN | Thu, Nov 17, 2005 | 6.65 | 6.65 | 6.27 | 6.30 | 1207 | NASDAQ | ALGN | Wed, Nov 16, 2005 | 6.71 | 6.75 | 6.49 | 6.59 | 1206 | NASDAQ | ALGN | Tue, Nov 15, 2005 | 6.82 | 6.85 | 6.67 | 6.73 | 1205 | NASDAQ | ALGN | Mon, Nov 14, 2005 | 6.90 | 7.01 | 6.77 | 6.85 | 1204 | NASDAQ | ALGN | Fri, Nov 11, 2005 | 6.96 | 7.00 | 6.88 | 6.98 | 1203 | NASDAQ | ALGN | Thu, Nov 10, 2005 | 6.75 | 7.01 | 6.66 | 6.99 | 1202 | NASDAQ | ALGN | Wed, Nov 9, 2005 | 6.96 | 7.00 | 6.71 | 6.77 | 1201 | NASDAQ | ALGN | Tue, Nov 8, 2005 | 7.01 | 7.01 | 6.80 | 6.90 | 1200 | NASDAQ | ALGN | Mon, Nov 7, 2005 | 7.00 | 7.10 | 6.95 | 6.99 | 1199 | NASDAQ | ALGN | Fri, Nov 4, 2005 | 7.07 | 7.20 | 6.91 | 7.00 | 1198 | NASDAQ | ALGN | Thu, Nov 3, 2005 | 7.08 | 7.26 | 6.93 | 7.04 | 1197 | NASDAQ | ALGN | Wed, Nov 2, 2005 | 6.90 | 7.17 | 6.89 | 7.15 | 1196 | NASDAQ | ALGN | Tue, Nov 1, 2005 | 7.30 | 7.30 | 6.86 | 6.95 | 1195 | NASDAQ | ALGN | Mon, Oct 31, 2005 | 7.10 | 7.40 | 7.05 | 7.38 | 1194 | NASDAQ | ALGN | Fri, Oct 28, 2005 | 6.81 | 7.15 | 6.80 | 7.11 | 1193 | NASDAQ | ALGN | Thu, Oct 27, 2005 | 7.13 | 7.20 | 6.75 | 6.84 | 1192 | NASDAQ | ALGN | Wed, Oct 26, 2005 | 7.35 | 7.42 | 6.95 | 7.20 | 1191 | NASDAQ | ALGN | Tue, Oct 25, 2005 | 7.59 | 7.69 | 7.18 | 7.40 | 1190 | NASDAQ | ALGN | Mon, Oct 24, 2005 | 7.30 | 7.60 | 7.30 | 7.59 | 1189 | NASDAQ | ALGN | Fri, Oct 21, 2005 | 7.29 | 7.52 | 7.19 | 7.34 | 1188 | NASDAQ | ALGN | Thu, Oct 20, 2005 | 7.29 | 7.41 | 7.02 | 7.30 | 1187 | NASDAQ | ALGN | Wed, Oct 19, 2005 | 7.07 | 7.32 | 6.96 | 7.29 | 1186 | NASDAQ | ALGN | Tue, Oct 18, 2005 | 7.08 | 7.17 | 6.83 | 7.10 | 1185 | NASDAQ | ALGN | Mon, Oct 17, 2005 | 6.97 | 7.14 | 6.96 | 7.08 | 1184 | NASDAQ | ALGN | Fri, Oct 14, 2005 | 6.66 | 7.11 | 6.65 | 7.02 | 1183 | NASDAQ | ALGN | Thu, Oct 13, 2005 | 6.62 | 6.63 | 6.40 | 6.63 | 1182 | NASDAQ | ALGN | Wed, Oct 12, 2005 | 6.56 | 6.65 | 6.50 | 6.59 | 1181 | NASDAQ | ALGN | Tue, Oct 11, 2005 | 6.63 | 6.66 | 6.54 | 6.59 | 1180 | NASDAQ | ALGN | Mon, Oct 10, 2005 | 6.52 | 6.72 | 6.46 | 6.60 | 1179 | NASDAQ | ALGN | Fri, Oct 7, 2005 | 6.39 | 6.51 | 6.31 | 6.41 | 1178 | NASDAQ | ALGN | Thu, Oct 6, 2005 | 6.40 | 6.59 | 6.33 | 6.41 | 1177 | NASDAQ | ALGN | Wed, Oct 5, 2005 | 6.60 | 6.66 | 6.40 | 6.40 | 1176 | NASDAQ | ALGN | Tue, Oct 4, 2005 | 6.72 | 6.78 | 6.57 | 6.66 | 1175 | NASDAQ | ALGN | Mon, Oct 3, 2005 | 6.72 | 6.84 | 6.60 | 6.70 | 1174 | NASDAQ | ALGN | Fri, Sep 30, 2005 | 6.69 | 6.75 | 6.50 | 6.72 | 1173 | NASDAQ | ALGN | Thu, Sep 29, 2005 | 6.51 | 6.69 | 6.41 | 6.67 | 1172 | NASDAQ | ALGN | Wed, Sep 28, 2005 | 6.57 | 6.61 | 6.44 | 6.55 | 1171 | NASDAQ | ALGN | Tue, Sep 27, 2005 | 6.60 | 6.70 | 6.45 | 6.60 | 1170 | NASDAQ | ALGN | Mon, Sep 26, 2005 | 6.67 | 6.67 | 6.51 | 6.64 | 1169 | NASDAQ | ALGN | Fri, Sep 23, 2005 | 6.35 | 6.67 | 6.27 | 6.62 | 1168 | NASDAQ | ALGN | Thu, Sep 22, 2005 | 6.26 | 6.53 | 6.20 | 6.31 | 1167 | NASDAQ | ALGN | Wed, Sep 21, 2005 | 6.45 | 6.48 | 6.27 | 6.27 | 1166 | NASDAQ | ALGN | Tue, Sep 20, 2005 | 6.65 | 6.77 | 6.47 | 6.50 | 1165 | NASDAQ | ALGN | Mon, Sep 19, 2005 | 6.85 | 6.85 | 6.60 | 6.65 | 1164 | NASDAQ | ALGN | Fri, Sep 16, 2005 | 6.89 | 6.91 | 6.82 | 6.86 | 1163 | NASDAQ | ALGN | Thu, Sep 15, 2005 | 6.96 | 7.03 | 6.74 | 6.84 | 1162 | NASDAQ | ALGN | Wed, Sep 14, 2005 | 7.14 | 7.17 | 6.85 | 6.96 | 1161 | NASDAQ | ALGN | Tue, Sep 13, 2005 | 7.21 | 7.25 | 7.09 | 7.17 | 1160 | NASDAQ | ALGN | Mon, Sep 12, 2005 | 7.03 | 7.29 | 7.00 | 7.23 | 1159 | NASDAQ | ALGN | Fri, Sep 9, 2005 | 7.01 | 7.10 | 6.98 | 7.07 | 1158 | NASDAQ | ALGN | Thu, Sep 8, 2005 | 7.20 | 7.29 | 6.96 | 7.02 | 1157 | NASDAQ | ALGN | Wed, Sep 7, 2005 | 7.23 | 7.44 | 7.12 | 7.20 | 1156 | NASDAQ | ALGN | Tue, Sep 6, 2005 | 7.15 | 7.42 | 7.08 | 7.29 | 1155 | NASDAQ | ALGN | Fri, Sep 2, 2005 | 7.23 | 7.26 | 7.04 | 7.13 | 1154 | NASDAQ | ALGN | Thu, Sep 1, 2005 | 6.83 | 7.22 | 6.81 | 7.18 | 1153 | NASDAQ | ALGN | Wed, Aug 31, 2005 | 6.71 | 6.85 | 6.69 | 6.81 | 1152 | NASDAQ | ALGN | Tue, Aug 30, 2005 | 6.75 | 6.96 | 6.70 | 6.77 | 1151 | NASDAQ | ALGN | Mon, Aug 29, 2005 | 6.50 | 6.66 | 6.43 | 6.62 | 1150 | NASDAQ | ALGN | Fri, Aug 26, 2005 | 6.70 | 6.75 | 6.51 | 6.51 | 1149 | NASDAQ | ALGN | Thu, Aug 25, 2005 | 6.78 | 6.85 | 6.68 | 6.72 | 1148 | NASDAQ | ALGN | Wed, Aug 24, 2005 | 6.48 | 6.78 | 6.45 | 6.72 | 1147 | NASDAQ | ALGN | Tue, Aug 23, 2005 | 6.53 | 6.58 | 6.48 | 6.48 | 1146 | NASDAQ | ALGN | Mon, Aug 22, 2005 | 6.40 | 6.60 | 6.40 | 6.53 | 1145 | NASDAQ | ALGN | Fri, Aug 19, 2005 | 6.36 | 6.50 | 6.28 | 6.44 | 1144 | NASDAQ | ALGN | Thu, Aug 18, 2005 | 6.69 | 6.69 | 6.36 | 6.39 | 1143 | NASDAQ | ALGN | Wed, Aug 17, 2005 | 6.50 | 6.71 | 6.47 | 6.67 | 1142 | NASDAQ | ALGN | Tue, Aug 16, 2005 | 6.50 | 6.63 | 6.38 | 6.50 | 1141 | NASDAQ | ALGN | Mon, Aug 15, 2005 | 6.19 | 6.60 | 6.18 | 6.54 | 1140 | NASDAQ | ALGN | Fri, Aug 12, 2005 | 6.19 | 6.43 | 6.07 | 6.23 | 1139 | NASDAQ | ALGN | Thu, Aug 11, 2005 | 6.07 | 6.25 | 6.07 | 6.21 | 1138 | NASDAQ | ALGN | Wed, Aug 10, 2005 | 6.25 | 6.31 | 6.06 | 6.13 | 1137 | NASDAQ | ALGN | Tue, Aug 9, 2005 | 6.20 | 6.29 | 6.18 | 6.25 | 1136 | NASDAQ | ALGN | Mon, Aug 8, 2005 | 6.14 | 6.31 | 6.13 | 6.21 | 1135 | NASDAQ | ALGN | Fri, Aug 5, 2005 | 6.22 | 6.31 | 6.19 | 6.23 | 1134 | NASDAQ | ALGN | Thu, Aug 4, 2005 | 6.18 | 6.29 | 6.18 | 6.25 | 1133 | NASDAQ | ALGN | Wed, Aug 3, 2005 | 6.39 | 6.45 | 6.19 | 6.23 | 1132 | NASDAQ | ALGN | Tue, Aug 2, 2005 | 6.52 | 6.56 | 6.43 | 6.48 | 1131 | NASDAQ | ALGN | Mon, Aug 1, 2005 | 6.53 | 6.63 | 6.40 | 6.56 | 1130 | NASDAQ | ALGN | Fri, Jul 29, 2005 | 6.70 | 6.78 | 6.51 | 6.52 | 1129 | NASDAQ | ALGN | Thu, Jul 28, 2005 | 6.67 | 6.79 | 6.57 | 6.70 | 1128 | NASDAQ | ALGN | Wed, Jul 27, 2005 | 6.46 | 6.74 | 6.42 | 6.63 | 1127 | NASDAQ | ALGN | Tue, Jul 26, 2005 | 6.24 | 6.55 | 6.18 | 6.46 | 1126 | NASDAQ | ALGN | Mon, Jul 25, 2005 | 6.13 | 6.25 | 6.06 | 6.18 | 1125 | NASDAQ | ALGN | Fri, Jul 22, 2005 | 5.85 | 6.06 | 5.80 | 6.06 | 1124 | NASDAQ | ALGN | Thu, Jul 21, 2005 | 6.29 | 6.30 | 5.83 | 5.88 | 1123 | NASDAQ | ALGN | Wed, Jul 20, 2005 | 7.01 | 7.01 | 5.63 | 6.17 | 1122 | NASDAQ | ALGN | Tue, Jul 19, 2005 | 7.25 | 7.38 | 6.92 | 7.05 | 1121 | NASDAQ | ALGN | Mon, Jul 18, 2005 | 7.66 | 7.71 | 7.31 | 7.40 | 1120 | NASDAQ | ALGN | Fri, Jul 15, 2005 | 7.90 | 8.00 | 7.61 | 7.70 | 1119 | NASDAQ | ALGN | Thu, Jul 14, 2005 | 8.10 | 8.32 | 7.92 | 7.95 | 1118 | NASDAQ | ALGN | Wed, Jul 13, 2005 | 8.18 | 8.25 | 8.07 | 8.07 | 1117 | NASDAQ | ALGN | Tue, Jul 12, 2005 | 8.35 | 8.41 | 8.02 | 8.20 | 1116 | NASDAQ | ALGN | Mon, Jul 11, 2005 | 8.11 | 8.35 | 8.11 | 8.34 | 1115 | NASDAQ | ALGN | Fri, Jul 8, 2005 | 7.75 | 8.25 | 7.75 | 8.14 | 1114 | NASDAQ | ALGN | Thu, Jul 7, 2005 | 7.56 | 7.85 | 7.56 | 7.78 | 1113 | NASDAQ | ALGN | Wed, Jul 6, 2005 | 7.79 | 7.94 | 7.68 | 7.72 | 1112 | NASDAQ | ALGN | Tue, Jul 5, 2005 | 7.41 | 7.79 | 7.41 | 7.79 | 1111 | NASDAQ | ALGN | Fri, Jul 1, 2005 | 7.35 | 7.54 | 7.35 | 7.44 | 1110 | NASDAQ | ALGN | Thu, Jun 30, 2005 | 7.40 | 7.50 | 7.34 | 7.37 | 1109 | NASDAQ | ALGN | Wed, Jun 29, 2005 | 7.42 | 7.47 | 7.28 | 7.32 | 1108 | NASDAQ | ALGN | Tue, Jun 28, 2005 | 7.04 | 7.42 | 6.95 | 7.40 | 1107 | NASDAQ | ALGN | Mon, Jun 27, 2005 | 7.00 | 7.07 | 6.95 | 6.96 | 1106 | NASDAQ | ALGN | Fri, Jun 24, 2005 | 6.92 | 7.07 | 6.92 | 7.07 | 1105 | NASDAQ | ALGN | Thu, Jun 23, 2005 | 7.20 | 7.31 | 6.93 | 6.93 | 1104 | NASDAQ | ALGN | Wed, Jun 22, 2005 | 7.37 | 7.47 | 7.15 | 7.25 | 1103 | NASDAQ | ALGN | Tue, Jun 21, 2005 | 7.41 | 7.49 | 7.19 | 7.37 | 1102 | NASDAQ | ALGN | Mon, Jun 20, 2005 | 7.55 | 7.60 | 7.42 | 7.45 | 1101 | NASDAQ | ALGN | Fri, Jun 17, 2005 | 7.45 | 7.59 | 7.34 | 7.56 | 1100 | NASDAQ | ALGN | Thu, Jun 16, 2005 | 7.27 | 7.57 | 7.27 | 7.50 | 1099 | NASDAQ | ALGN | Wed, Jun 15, 2005 | 7.44 | 7.54 | 7.24 | 7.29 | 1098 | NASDAQ | ALGN | Tue, Jun 14, 2005 | 7.68 | 7.68 | 7.33 | 7.46 | 1097 | NASDAQ | ALGN | Mon, Jun 13, 2005 | 7.46 | 7.76 | 7.41 | 7.66 | 1096 | NASDAQ | ALGN | Fri, Jun 10, 2005 | 7.52 | 7.57 | 7.41 | 7.46 | 1095 | NASDAQ | ALGN | Thu, Jun 9, 2005 | 7.15 | 7.57 | 7.10 | 7.54 | 1094 | NASDAQ | ALGN | Wed, Jun 8, 2005 | 7.33 | 7.33 | 7.10 | 7.11 | 1093 | NASDAQ | ALGN | Tue, Jun 7, 2005 | 7.38 | 7.57 | 7.10 | 7.28 | 1092 | NASDAQ | ALGN | Mon, Jun 6, 2005 | 7.53 | 7.58 | 7.39 | 7.49 | 1091 | NASDAQ | ALGN | Fri, Jun 3, 2005 | 7.62 | 7.75 | 7.55 | 7.57 | 1090 | NASDAQ | ALGN | Thu, Jun 2, 2005 | 7.17 | 7.74 | 7.17 | 7.65 | 1089 | NASDAQ | ALGN | Wed, Jun 1, 2005 | 7.30 | 7.40 | 7.21 | 7.25 | 1088 | NASDAQ | ALGN | Tue, May 31, 2005 | 7.14 | 7.40 | 7.14 | 7.27 | 1087 | NASDAQ | ALGN | Fri, May 27, 2005 | 7.33 | 7.38 | 7.12 | 7.18 | 1086 | NASDAQ | ALGN | Thu, May 26, 2005 | 7.21 | 7.42 | 7.11 | 7.24 | 1085 | NASDAQ | ALGN | Wed, May 25, 2005 | 7.26 | 7.29 | 7.15 | 7.19 | 1084 | NASDAQ | ALGN | Tue, May 24, 2005 | 7.24 | 7.49 | 7.20 | 7.29 | 1083 | NASDAQ | ALGN | Mon, May 23, 2005 | 7.40 | 7.50 | 6.96 | 7.34 | 1082 | NASDAQ | ALGN | Fri, May 20, 2005 | 8.08 | 8.29 | 7.67 | 7.94 | 1081 | NASDAQ | ALGN | Thu, May 19, 2005 | 8.19 | 8.20 | 7.60 | 8.08 | 1080 | NASDAQ | ALGN | Wed, May 18, 2005 | 8.35 | 8.40 | 8.06 | 8.19 | 1079 | NASDAQ | ALGN | Tue, May 17, 2005 | 8.12 | 8.35 | 8.12 | 8.30 | 1078 | NASDAQ | ALGN | Mon, May 16, 2005 | 8.47 | 8.53 | 8.03 | 8.20 | 1077 | NASDAQ | ALGN | Fri, May 13, 2005 | 8.55 | 8.73 | 8.28 | 8.35 | 1076 | NASDAQ | ALGN | Thu, May 12, 2005 | 8.55 | 8.75 | 8.43 | 8.53 | 1075 | NASDAQ | ALGN | Wed, May 11, 2005 | 8.55 | 8.58 | 8.19 | 8.52 | 1074 | NASDAQ | ALGN | Tue, May 10, 2005 | 8.82 | 8.82 | 8.50 | 8.55 | 1073 | NASDAQ | ALGN | Mon, May 9, 2005 | 8.45 | 8.90 | 8.44 | 8.80 | 1072 | NASDAQ | ALGN | Fri, May 6, 2005 | 8.33 | 8.58 | 8.33 | 8.43 | 1071 | NASDAQ | ALGN | Thu, May 5, 2005 | 8.26 | 8.39 | 8.09 | 8.35 | 1070 | NASDAQ | ALGN | Wed, May 4, 2005 | 8.26 | 8.36 | 8.20 | 8.31 | 1069 | NASDAQ | ALGN | Tue, May 3, 2005 | 8.50 | 8.56 | 8.27 | 8.35 | 1068 | NASDAQ | ALGN | Mon, May 2, 2005 | 8.42 | 8.56 | 8.26 | 8.39 | 1067 | NASDAQ | ALGN | Fri, Apr 29, 2005 | 8.41 | 8.67 | 8.25 | 8.42 | 1066 | NASDAQ | ALGN | Thu, Apr 28, 2005 | 8.44 | 8.74 | 8.39 | 8.43 | 1065 | NASDAQ | ALGN | Wed, Apr 27, 2005 | 8.11 | 8.77 | 8.04 | 8.53 | 1064 | NASDAQ | ALGN | Tue, Apr 26, 2005 | 8.09 | 8.47 | 8.06 | 8.19 | 1063 | NASDAQ | ALGN | Mon, Apr 25, 2005 | 8.16 | 8.35 | 8.13 | 8.22 | 1062 | NASDAQ | ALGN | Fri, Apr 22, 2005 | 8.26 | 8.45 | 7.96 | 8.16 | 1061 | NASDAQ | ALGN | Thu, Apr 21, 2005 | 8.44 | 8.48 | 7.89 | 8.34 | 1060 | NASDAQ | ALGN | Wed, Apr 20, 2005 | 7.40 | 8.84 | 7.36 | 8.36 | 1059 | NASDAQ | ALGN | Tue, Apr 19, 2005 | 6.88 | 7.06 | 6.61 | 6.95 | 1058 | NASDAQ | ALGN | Mon, Apr 18, 2005 | 6.90 | 7.00 | 6.70 | 6.88 | 1057 | NASDAQ | ALGN | Fri, Apr 15, 2005 | 6.44 | 7.12 | 6.35 | 6.85 | 1056 | NASDAQ | ALGN | Thu, Apr 14, 2005 | 6.18 | 6.41 | 6.03 | 6.40 | 1055 | NASDAQ | ALGN | Wed, Apr 13, 2005 | 6.00 | 6.18 | 5.96 | 6.10 | 1054 | NASDAQ | ALGN | Tue, Apr 12, 2005 | 5.99 | 5.99 | 5.75 | 5.90 | 1053 | NASDAQ | ALGN | Mon, Apr 11, 2005 | 6.20 | 6.26 | 5.77 | 5.96 | 1052 | NASDAQ | ALGN | Fri, Apr 8, 2005 | 6.22 | 6.24 | 6.10 | 6.11 | 1051 | NASDAQ | ALGN | Thu, Apr 7, 2005 | 6.07 | 6.32 | 6.00 | 6.20 | 1050 | NASDAQ | ALGN | Wed, Apr 6, 2005 | 6.05 | 6.08 | 5.96 | 6.00 | 1049 | NASDAQ | ALGN | Tue, Apr 5, 2005 | 6.00 | 6.07 | 5.86 | 6.01 | 1048 | NASDAQ | ALGN | Mon, Apr 4, 2005 | 5.84 | 6.18 | 5.75 | 6.05 | 1047 | NASDAQ | ALGN | Fri, Apr 1, 2005 | 6.26 | 6.26 | 5.75 | 5.89 | 1046 | NASDAQ | ALGN | Thu, Mar 31, 2005 | 6.41 | 6.41 | 6.15 | 6.24 | 1045 | NASDAQ | ALGN | Wed, Mar 30, 2005 | 6.25 | 6.41 | 6.16 | 6.36 | 1044 | NASDAQ | ALGN | Tue, Mar 29, 2005 | 6.35 | 6.46 | 6.16 | 6.17 | 1043 | NASDAQ | ALGN | Mon, Mar 28, 2005 | 6.32 | 6.40 | 6.30 | 6.38 | 1042 | NASDAQ | ALGN | Thu, Mar 24, 2005 | 6.02 | 6.40 | 5.99 | 6.31 | 1041 | NASDAQ | ALGN | Wed, Mar 23, 2005 | 6.38 | 6.40 | 5.84 | 5.96 | 1040 | NASDAQ | ALGN | Tue, Mar 22, 2005 | 6.66 | 6.70 | 6.37 | 6.42 | 1039 | NASDAQ | ALGN | Mon, Mar 21, 2005 | 6.60 | 6.65 | 6.50 | 6.62 | 1038 | NASDAQ | ALGN | Fri, Mar 18, 2005 | 6.66 | 6.76 | 6.52 | 6.58 | 1037 | NASDAQ | ALGN | Thu, Mar 17, 2005 | 6.73 | 6.84 | 6.67 | 6.70 | 1036 | NASDAQ | ALGN | Wed, Mar 16, 2005 | 6.86 | 6.87 | 6.47 | 6.68 | 1035 | NASDAQ | ALGN | Tue, Mar 15, 2005 | 7.25 | 7.27 | 6.81 | 6.92 | 1034 | NASDAQ | ALGN | Mon, Mar 14, 2005 | 7.29 | 7.49 | 7.05 | 7.15 | 1033 | NASDAQ | ALGN | Fri, Mar 11, 2005 | 7.54 | 7.54 | 7.23 | 7.32 | 1032 | NASDAQ | ALGN | Thu, Mar 10, 2005 | 7.63 | 7.70 | 7.40 | 7.50 | 1031 | NASDAQ | ALGN | Wed, Mar 9, 2005 | 7.70 | 7.79 | 7.56 | 7.60 | 1030 | NASDAQ | ALGN | Tue, Mar 8, 2005 | 7.88 | 8.01 | 7.69 | 7.69 | 1029 | NASDAQ | ALGN | Mon, Mar 7, 2005 | 7.70 | 7.95 | 7.55 | 7.88 | 1028 | NASDAQ | ALGN | Fri, Mar 4, 2005 | 7.65 | 7.69 | 7.50 | 7.53 | 1027 | NASDAQ | ALGN | Thu, Mar 3, 2005 | 7.80 | 7.92 | 7.43 | 7.55 | 1026 | NASDAQ | ALGN | Wed, Mar 2, 2005 | 7.62 | 7.68 | 7.40 | 7.43 | 1025 | NASDAQ | ALGN | Tue, Mar 1, 2005 | 7.57 | 7.63 | 7.37 | 7.40 | 1024 | NASDAQ | ALGN | Mon, Feb 28, 2005 | 7.81 | 7.85 | 7.46 | 7.57 | 1023 | NASDAQ | ALGN | Fri, Feb 25, 2005 | 7.60 | 7.65 | 7.50 | 7.60 | 1022 | NASDAQ | ALGN | Thu, Feb 24, 2005 | 7.54 | 7.61 | 7.38 | 7.59 | 1021 | NASDAQ | ALGN | Wed, Feb 23, 2005 | 7.34 | 7.57 | 7.34 | 7.45 | 1020 | NASDAQ | ALGN | Tue, Feb 22, 2005 | 7.56 | 7.65 | 7.35 | 7.35 | 1019 | NASDAQ | ALGN | Fri, Feb 18, 2005 | 7.85 | 7.95 | 7.49 | 7.60 | 1018 | NASDAQ | ALGN | Thu, Feb 17, 2005 | 8.28 | 8.28 | 7.87 | 7.88 | 1017 | NASDAQ | ALGN | Wed, Feb 16, 2005 | 8.32 | 8.34 | 8.12 | 8.31 | 1016 | NASDAQ | ALGN | Tue, Feb 15, 2005 | 8.08 | 8.32 | 8.00 | 8.30 | 1015 | NASDAQ | ALGN | Mon, Feb 14, 2005 | 7.63 | 8.30 | 7.63 | 8.00 | 1014 | NASDAQ | ALGN | Fri, Feb 11, 2005 | 7.71 | 7.83 | 7.62 | 7.74 | 1013 | NASDAQ | ALGN | Thu, Feb 10, 2005 | 7.51 | 7.73 | 7.42 | 7.70 | 1012 | NASDAQ | ALGN | Wed, Feb 9, 2005 | 7.84 | 7.84 | 7.48 | 7.58 | 1011 | NASDAQ | ALGN | Tue, Feb 8, 2005 | 8.06 | 8.07 | 7.70 | 7.73 | 1010 | NASDAQ | ALGN | Mon, Feb 7, 2005 | 8.34 | 8.44 | 7.59 | 7.97 | 1009 | NASDAQ | ALGN | Fri, Feb 4, 2005 | 7.75 | 8.00 | 7.58 | 7.99 | 1008 | NASDAQ | ALGN | Thu, Feb 3, 2005 | 8.60 | 8.60 | 7.76 | 7.95 | 1007 | NASDAQ | ALGN | Wed, Feb 2, 2005 | 8.55 | 8.89 | 8.55 | 8.70 | 1006 | NASDAQ | ALGN | Tue, Feb 1, 2005 | 8.66 | 8.70 | 8.23 | 8.66 | 1005 | NASDAQ | ALGN | Mon, Jan 31, 2005 | 8.88 | 8.88 | 8.48 | 8.66 | 1004 | NASDAQ | ALGN | Fri, Jan 28, 2005 | 9.00 | 9.00 | 8.58 | 8.76 | 1003 | NASDAQ | ALGN | Thu, Jan 27, 2005 | 8.49 | 8.93 | 8.40 | 8.85 | 1002 | NASDAQ | ALGN | Wed, Jan 26, 2005 | 9.53 | 9.74 | 7.78 | 8.50 | 1001 | NASDAQ | ALGN | Tue, Jan 25, 2005 | 9.50 | 9.72 | 9.25 | 9.44 | 1000 | NASDAQ | ALGN | Mon, Jan 24, 2005 | 10.26 | 10.29 | 9.27 | 9.49 | 999 | NASDAQ | ALGN | Fri, Jan 21, 2005 | 10.51 | 10.61 | 10.15 | 10.24 | 998 | NASDAQ | ALGN | Thu, Jan 20, 2005 | 10.70 | 10.70 | 10.35 | 10.51 | 997 | NASDAQ | ALGN | Wed, Jan 19, 2005 | 10.74 | 10.80 | 10.51 | 10.72 | 996 | NASDAQ | ALGN | Tue, Jan 18, 2005 | 10.16 | 10.65 | 10.15 | 10.62 | 995 | NASDAQ | ALGN | Fri, Jan 14, 2005 | 10.10 | 10.35 | 10.10 | 10.28 | 994 | NASDAQ | ALGN | Thu, Jan 13, 2005 | 10.25 | 10.25 | 10.07 | 10.10 | 993 | NASDAQ | ALGN | Wed, Jan 12, 2005 | 10.07 | 10.19 | 10.05 | 10.11 | 992 | NASDAQ | ALGN | Tue, Jan 11, 2005 | 10.45 | 10.45 | 9.98 | 10.08 | 991 | NASDAQ | ALGN | Mon, Jan 10, 2005 | 10.20 | 10.38 | 10.20 | 10.29 | 990 | NASDAQ | ALGN | Fri, Jan 7, 2005 | 10.17 | 10.33 | 10.17 | 10.28 | 989 | NASDAQ | ALGN | Thu, Jan 6, 2005 | 10.40 | 10.46 | 10.22 | 10.24 | 988 | NASDAQ | ALGN | Wed, Jan 5, 2005 | 10.35 | 10.57 | 10.30 | 10.40 | 987 | NASDAQ | ALGN | Tue, Jan 4, 2005 | 10.44 | 10.74 | 10.35 | 10.41 | 986 | NASDAQ | ALGN | Mon, Jan 3, 2005 | 10.87 | 10.87 | 10.36 | 10.56 | 985 | NASDAQ | ALGN | Fri, Dec 31, 2004 | 10.84 | 11.00 | 10.72 | 10.75 | 984 | NASDAQ | ALGN | Thu, Dec 30, 2004 | 11.00 | 11.00 | 10.83 | 10.85 | 983 | NASDAQ | ALGN | Wed, Dec 29, 2004 | 11.00 | 11.12 | 10.82 | 10.86 | 982 | NASDAQ | ALGN | Tue, Dec 28, 2004 | 10.92 | 11.16 | 10.76 | 11.07 | 981 | NASDAQ | ALGN | Mon, Dec 27, 2004 | 10.95 | 10.95 | 10.57 | 10.83 | 980 | NASDAQ | ALGN | Thu, Dec 23, 2004 | 10.66 | 10.91 | 10.63 | 10.81 | 979 | NASDAQ | ALGN | Wed, Dec 22, 2004 | 10.56 | 10.85 | 10.47 | 10.66 | 978 | NASDAQ | ALGN | Tue, Dec 21, 2004 | 10.25 | 10.72 | 10.25 | 10.47 | 977 | NASDAQ | ALGN | Mon, Dec 20, 2004 | 10.30 | 10.58 | 10.27 | 10.33 | 976 | NASDAQ | ALGN | Fri, Dec 17, 2004 | 10.48 | 10.55 | 10.29 | 10.32 | 975 | NASDAQ | ALGN | Thu, Dec 16, 2004 | 10.50 | 10.68 | 10.37 | 10.39 | 974 | NASDAQ | ALGN | Wed, Dec 15, 2004 | 10.88 | 10.88 | 10.42 | 10.47 | 973 | NASDAQ | ALGN | Tue, Dec 14, 2004 | 10.90 | 10.93 | 10.59 | 10.80 | 972 | NASDAQ | ALGN | Mon, Dec 13, 2004 | 11.00 | 11.00 | 10.50 | 10.72 | 971 | NASDAQ | ALGN | Fri, Dec 10, 2004 | 10.58 | 10.71 | 10.40 | 10.60 | 970 | NASDAQ | ALGN | Thu, Dec 9, 2004 | 10.75 | 10.80 | 10.30 | 10.48 | 969 | NASDAQ | ALGN | Wed, Dec 8, 2004 | 11.35 | 11.38 | 11.01 | 11.10 | 968 | NASDAQ | ALGN | Tue, Dec 7, 2004 | 11.56 | 11.60 | 11.02 | 11.04 | 967 | NASDAQ | ALGN | Mon, Dec 6, 2004 | 11.45 | 11.74 | 11.42 | 11.50 | 966 | NASDAQ | ALGN | Fri, Dec 3, 2004 | 11.95 | 12.00 | 11.45 | 11.46 | 965 | NASDAQ | ALGN | Thu, Dec 2, 2004 | 11.74 | 11.90 | 11.50 | 11.72 | 964 | NASDAQ | ALGN | Wed, Dec 1, 2004 | 11.06 | 11.76 | 10.86 | 11.74 | 963 | NASDAQ | ALGN | Tue, Nov 30, 2004 | 10.66 | 10.66 | 10.43 | 10.57 | 962 | NASDAQ | ALGN | Mon, Nov 29, 2004 | 10.28 | 10.61 | 10.28 | 10.58 | 961 | NASDAQ | ALGN | Fri, Nov 26, 2004 | 10.34 | 10.36 | 10.24 | 10.30 | 960 | NASDAQ | ALGN | Wed, Nov 24, 2004 | 10.44 | 10.44 | 10.20 | 10.24 | 959 | NASDAQ | ALGN | Tue, Nov 23, 2004 | 10.51 | 10.59 | 10.20 | 10.37 | 958 | NASDAQ | ALGN | Mon, Nov 22, 2004 | 10.57 | 10.87 | 10.35 | 10.53 | 957 | NASDAQ | ALGN | Fri, Nov 19, 2004 | 10.80 | 10.94 | 10.66 | 10.66 | 956 | NASDAQ | ALGN | Thu, Nov 18, 2004 | 10.95 | 11.12 | 10.80 | 10.85 | 955 | NASDAQ | ALGN | Wed, Nov 17, 2004 | 10.59 | 10.70 | 10.39 | 10.56 | 954 | NASDAQ | ALGN | Tue, Nov 16, 2004 | 10.52 | 10.85 | 10.42 | 10.54 | 953 | NASDAQ | ALGN | Mon, Nov 15, 2004 | 10.74 | 10.87 | 10.70 | 10.77 | 952 | NASDAQ | ALGN | Fri, Nov 12, 2004 | 10.76 | 11.05 | 10.71 | 10.72 | 951 | NASDAQ | ALGN | Thu, Nov 11, 2004 | 11.09 | 11.09 | 10.76 | 10.95 | 950 | NASDAQ | ALGN | Wed, Nov 10, 2004 | 11.48 | 11.49 | 11.09 | 11.12 | 949 | NASDAQ | ALGN | Tue, Nov 9, 2004 | 11.04 | 11.28 | 10.85 | 11.27 | 948 | NASDAQ | ALGN | Mon, Nov 8, 2004 | 11.00 | 11.00 | 10.70 | 10.75 | 947 | NASDAQ | ALGN | Fri, Nov 5, 2004 | 10.90 | 11.03 | 10.81 | 10.99 | 946 | NASDAQ | ALGN | Thu, Nov 4, 2004 | 10.78 | 11.00 | 10.70 | 10.98 | 945 | NASDAQ | ALGN | Wed, Nov 3, 2004 | 11.02 | 11.15 | 10.76 | 11.02 | 944 | NASDAQ | ALGN | Tue, Nov 2, 2004 | 10.56 | 10.87 | 10.35 | 10.69 | 943 | NASDAQ | ALGN | Mon, Nov 1, 2004 | 10.53 | 10.60 | 10.10 | 10.49 | 942 | NASDAQ | ALGN | Fri, Oct 29, 2004 | 10.15 | 10.65 | 10.00 | 10.38 | 941 | NASDAQ | ALGN | Thu, Oct 28, 2004 | 9.62 | 10.06 | 9.61 | 9.95 | 940 | NASDAQ | ALGN | Wed, Oct 27, 2004 | 9.00 | 9.73 | 8.90 | 9.64 | 939 | NASDAQ | ALGN | Tue, Oct 26, 2004 | 9.26 | 9.28 | 8.85 | 8.97 | 938 | NASDAQ | ALGN | Mon, Oct 25, 2004 | 9.75 | 9.93 | 9.15 | 9.25 | 937 | NASDAQ | ALGN | Fri, Oct 22, 2004 | 10.15 | 10.20 | 9.55 | 9.76 | 936 | NASDAQ | ALGN | Thu, Oct 21, 2004 | 14.15 | 14.28 | 9.71 | 9.90 | 935 | NASDAQ | ALGN | Wed, Oct 20, 2004 | 14.30 | 14.82 | 13.96 | 14.82 | 934 | NASDAQ | ALGN | Tue, Oct 19, 2004 | 14.77 | 14.87 | 13.63 | 14.12 | 933 | NASDAQ | ALGN | Mon, Oct 18, 2004 | 14.96 | 15.10 | 14.38 | 14.48 | 932 | NASDAQ | ALGN | Fri, Oct 15, 2004 | 14.95 | 15.20 | 14.88 | 15.00 | 931 | NASDAQ | ALGN | Thu, Oct 14, 2004 | 15.06 | 15.21 | 14.89 | 14.94 | 930 | NASDAQ | ALGN | Wed, Oct 13, 2004 | 15.58 | 15.62 | 15.03 | 15.17 | 929 | NASDAQ | ALGN | Tue, Oct 12, 2004 | 15.63 | 15.68 | 15.50 | 15.58 | 928 | NASDAQ | ALGN | Mon, Oct 11, 2004 | 15.65 | 15.72 | 15.40 | 15.65 | 927 | NASDAQ | ALGN | Fri, Oct 8, 2004 | 15.77 | 15.86 | 15.50 | 15.55 | 926 | NASDAQ | ALGN | Thu, Oct 7, 2004 | 16.07 | 16.19 | 15.70 | 15.75 | 925 | NASDAQ | ALGN | Wed, Oct 6, 2004 | 16.09 | 16.25 | 16.00 | 16.19 | 924 | NASDAQ | ALGN | Tue, Oct 5, 2004 | 16.22 | 16.34 | 16.10 | 16.34 | 923 | NASDAQ | ALGN | Mon, Oct 4, 2004 | 15.76 | 16.25 | 15.64 | 16.20 | 922 | NASDAQ | ALGN | Fri, Oct 1, 2004 | 15.43 | 15.79 | 15.23 | 15.72 | 921 | NASDAQ | ALGN | Thu, Sep 30, 2004 | 15.24 | 15.37 | 15.12 | 15.28 | 920 | NASDAQ | ALGN | Wed, Sep 29, 2004 | 15.25 | 15.38 | 15.00 | 15.37 | 919 | NASDAQ | ALGN | Tue, Sep 28, 2004 | 14.73 | 15.24 | 14.54 | 15.14 | 918 | NASDAQ | ALGN | Mon, Sep 27, 2004 | 14.79 | 14.93 | 14.58 | 14.70 | 917 | NASDAQ | ALGN | Fri, Sep 24, 2004 | 14.93 | 15.02 | 14.84 | 14.85 | 916 | NASDAQ | ALGN | Thu, Sep 23, 2004 | 15.14 | 15.24 | 15.00 | 15.04 | 915 | NASDAQ | ALGN | Wed, Sep 22, 2004 | 15.47 | 15.60 | 14.95 | 15.11 | 914 | NASDAQ | ALGN | Tue, Sep 21, 2004 | 15.22 | 15.74 | 15.22 | 15.61 | 913 | NASDAQ | ALGN | Mon, Sep 20, 2004 | 15.55 | 15.80 | 15.31 | 15.39 | 912 | NASDAQ | ALGN | Fri, Sep 17, 2004 | 16.40 | 16.42 | 15.23 | 15.69 | 911 | NASDAQ | ALGN | Thu, Sep 16, 2004 | 15.79 | 15.84 | 15.60 | 15.75 | 910 | NASDAQ | ALGN | Wed, Sep 15, 2004 | 16.28 | 16.29 | 15.61 | 15.74 | 909 | NASDAQ | ALGN | Tue, Sep 14, 2004 | 16.36 | 16.50 | 16.05 | 16.16 | 908 | NASDAQ | ALGN | Mon, Sep 13, 2004 | 16.29 | 16.56 | 16.18 | 16.29 | 907 | NASDAQ | ALGN | Fri, Sep 10, 2004 | 15.45 | 16.75 | 15.45 | 16.28 | 906 | NASDAQ | ALGN | Thu, Sep 9, 2004 | 15.35 | 15.74 | 15.31 | 15.51 | 905 | NASDAQ | ALGN | Wed, Sep 8, 2004 | 15.32 | 15.51 | 15.30 | 15.31 | 904 | NASDAQ | ALGN | Tue, Sep 7, 2004 | 15.25 | 15.40 | 15.18 | 15.34 | 903 | NASDAQ | ALGN | Fri, Sep 3, 2004 | 15.45 | 15.45 | 15.02 | 15.25 | 902 | NASDAQ | ALGN | Thu, Sep 2, 2004 | 15.15 | 15.48 | 15.15 | 15.36 | 901 | NASDAQ | ALGN | Wed, Sep 1, 2004 | 15.20 | 15.77 | 14.75 | 15.36 | 900 | NASDAQ | ALGN | Tue, Aug 31, 2004 | 15.24 | 15.41 | 14.88 | 15.32 | 899 | NASDAQ | ALGN | Mon, Aug 30, 2004 | 15.35 | 15.50 | 15.09 | 15.39 | 898 | NASDAQ | ALGN | Fri, Aug 27, 2004 | 15.15 | 15.49 | 15.13 | 15.42 | 897 | NASDAQ | ALGN | Thu, Aug 26, 2004 | 15.41 | 15.42 | 14.99 | 15.30 | 896 | NASDAQ | ALGN | Wed, Aug 25, 2004 | 14.79 | 15.50 | 14.64 | 15.30 | 895 | NASDAQ | ALGN | Tue, Aug 24, 2004 | 14.93 | 15.05 | 14.76 | 14.88 | 894 | NASDAQ | ALGN | Mon, Aug 23, 2004 | 15.00 | 15.03 | 14.60 | 14.83 | 893 | NASDAQ | ALGN | Fri, Aug 20, 2004 | 14.97 | 15.06 | 14.90 | 14.90 | 892 | NASDAQ | ALGN | Thu, Aug 19, 2004 | 14.82 | 15.22 | 14.82 | 15.02 | 891 | NASDAQ | ALGN | Wed, Aug 18, 2004 | 14.30 | 15.10 | 14.30 | 15.02 | 890 | NASDAQ | ALGN | Tue, Aug 17, 2004 | 14.29 | 15.18 | 14.06 | 14.52 | 889 | NASDAQ | ALGN | Mon, Aug 16, 2004 | 13.80 | 14.25 | 13.71 | 14.19 | 888 | NASDAQ | ALGN | Fri, Aug 13, 2004 | 14.39 | 14.62 | 13.60 | 13.90 | 887 | NASDAQ | ALGN | Thu, Aug 12, 2004 | 15.06 | 15.19 | 14.47 | 14.48 | 886 | NASDAQ | ALGN | Wed, Aug 11, 2004 | 15.29 | 15.40 | 14.92 | 15.10 | 885 | NASDAQ | ALGN | Tue, Aug 10, 2004 | 14.74 | 15.53 | 14.74 | 15.50 | 884 | NASDAQ | ALGN | Mon, Aug 9, 2004 | 14.84 | 15.00 | 14.55 | 14.85 | 883 | NASDAQ | ALGN | Fri, Aug 6, 2004 | 15.50 | 15.50 | 14.74 | 14.84 | 882 | NASDAQ | ALGN | Thu, Aug 5, 2004 | 16.00 | 16.22 | 15.50 | 15.58 | 881 | NASDAQ | ALGN | Wed, Aug 4, 2004 | 16.10 | 16.34 | 15.68 | 16.01 | 880 | NASDAQ | ALGN | Tue, Aug 3, 2004 | 16.82 | 16.94 | 16.04 | 16.26 | 879 | NASDAQ | ALGN | Mon, Aug 2, 2004 | 17.34 | 17.35 | 16.73 | 16.96 | 878 | NASDAQ | ALGN | Fri, Jul 30, 2004 | 16.65 | 17.29 | 16.65 | 17.18 | 877 | NASDAQ | ALGN | Thu, Jul 29, 2004 | 17.28 | 17.30 | 16.44 | 16.80 | 876 | NASDAQ | ALGN | Wed, Jul 28, 2004 | 16.51 | 17.20 | 16.51 | 17.02 | 875 | NASDAQ | ALGN | Tue, Jul 27, 2004 | 16.90 | 17.00 | 16.40 | 16.68 | 874 | NASDAQ | ALGN | Mon, Jul 26, 2004 | 17.17 | 17.60 | 16.57 | 16.90 | 873 | NASDAQ | ALGN | Fri, Jul 23, 2004 | 17.75 | 18.05 | 17.56 | 17.91 | 872 | NASDAQ | ALGN | Thu, Jul 22, 2004 | 15.95 | 17.75 | 15.95 | 17.70 | 871 | NASDAQ | ALGN | Wed, Jul 21, 2004 | 15.94 | 16.39 | 15.23 | 15.26 | 870 | NASDAQ | ALGN | Tue, Jul 20, 2004 | 15.82 | 16.22 | 15.60 | 16.13 | 869 | NASDAQ | ALGN | Mon, Jul 19, 2004 | 15.41 | 15.75 | 15.41 | 15.60 | 868 | NASDAQ | ALGN | Fri, Jul 16, 2004 | 16.08 | 16.18 | 15.42 | 15.50 | 867 | NASDAQ | ALGN | Thu, Jul 15, 2004 | 15.65 | 16.30 | 15.64 | 16.08 | 866 | NASDAQ | ALGN | Wed, Jul 14, 2004 | 15.75 | 16.18 | 15.58 | 15.92 | 865 | NASDAQ | ALGN | Tue, Jul 13, 2004 | 16.12 | 16.33 | 15.95 | 15.97 | 864 | NASDAQ | ALGN | Mon, Jul 12, 2004 | 16.20 | 16.50 | 15.80 | 16.05 | 863 | NASDAQ | ALGN | Fri, Jul 9, 2004 | 17.07 | 17.07 | 16.06 | 16.24 | 862 | NASDAQ | ALGN | Thu, Jul 8, 2004 | 17.89 | 18.06 | 16.86 | 16.95 | 861 | NASDAQ | ALGN | Wed, Jul 7, 2004 | 17.79 | 18.06 | 17.56 | 17.90 | 860 | NASDAQ | ALGN | Tue, Jul 6, 2004 | 18.30 | 18.50 | 17.57 | 17.69 | 859 | NASDAQ | ALGN | Fri, Jul 2, 2004 | 18.50 | 18.70 | 18.35 | 18.37 | 858 | NASDAQ | ALGN | Thu, Jul 1, 2004 | 18.91 | 19.15 | 18.30 | 18.72 | 857 | NASDAQ | ALGN | Wed, Jun 30, 2004 | 18.40 | 19.15 | 18.30 | 19.00 | 856 | NASDAQ | ALGN | Tue, Jun 29, 2004 | 18.25 | 18.48 | 18.17 | 18.35 | 855 | NASDAQ | ALGN | Mon, Jun 28, 2004 | 18.50 | 18.50 | 18.20 | 18.28 | 854 | NASDAQ | ALGN | Fri, Jun 25, 2004 | 18.20 | 18.65 | 18.20 | 18.45 | 853 | NASDAQ | ALGN | Thu, Jun 24, 2004 | 18.80 | 18.80 | 18.22 | 18.36 | 852 | NASDAQ | ALGN | Wed, Jun 23, 2004 | 18.62 | 18.84 | 18.55 | 18.79 | 851 | NASDAQ | ALGN | Tue, Jun 22, 2004 | 18.30 | 18.55 | 18.18 | 18.53 | 850 | NASDAQ | ALGN | Mon, Jun 21, 2004 | 18.27 | 18.65 | 18.15 | 18.39 | 849 | NASDAQ | ALGN | Fri, Jun 18, 2004 | 18.10 | 18.63 | 17.91 | 18.37 | 848 | NASDAQ | ALGN | Thu, Jun 17, 2004 | 18.37 | 18.54 | 18.10 | 18.21 | 847 | NASDAQ | ALGN | Wed, Jun 16, 2004 | 18.49 | 18.60 | 18.09 | 18.52 | 846 | NASDAQ | ALGN | Tue, Jun 15, 2004 | 17.39 | 18.51 | 17.30 | 18.30 | 845 | NASDAQ | ALGN | Mon, Jun 14, 2004 | 17.85 | 17.97 | 17.40 | 17.40 | 844 | NASDAQ | ALGN | Thu, Jun 10, 2004 | 17.74 | 18.56 | 17.73 | 17.83 | 843 | NASDAQ | ALGN | Wed, Jun 9, 2004 | 18.46 | 18.47 | 17.78 | 17.84 | 842 | NASDAQ | ALGN | Tue, Jun 8, 2004 | 18.70 | 18.70 | 18.26 | 18.40 | 841 | NASDAQ | ALGN | Mon, Jun 7, 2004 | 18.80 | 18.80 | 18.30 | 18.68 | 840 | NASDAQ | ALGN | Fri, Jun 4, 2004 | 18.99 | 19.10 | 18.33 | 18.59 | 839 | NASDAQ | ALGN | Thu, Jun 3, 2004 | 19.00 | 19.27 | 18.78 | 18.91 | 838 | NASDAQ | ALGN | Wed, Jun 2, 2004 | 18.92 | 19.27 | 18.82 | 19.08 | 837 | NASDAQ | ALGN | Tue, Jun 1, 2004 | 19.00 | 19.30 | 18.66 | 18.81 | 836 | NASDAQ | ALGN | Fri, May 28, 2004 | 19.18 | 19.30 | 18.70 | 19.06 | 835 | NASDAQ | ALGN | Thu, May 27, 2004 | 18.99 | 19.21 | 18.48 | 19.09 | 834 | NASDAQ | ALGN | Wed, May 26, 2004 | 19.20 | 19.45 | 18.80 | 18.91 | 833 | NASDAQ | ALGN | Tue, May 25, 2004 | 19.55 | 20.00 | 19.49 | 19.97 | 832 | NASDAQ | ALGN | Mon, May 24, 2004 | 19.55 | 20.00 | 19.29 | 19.64 | 831 | NASDAQ | ALGN | Fri, May 21, 2004 | 19.40 | 19.40 | 19.12 | 19.27 | 830 | NASDAQ | ALGN | Thu, May 20, 2004 | 19.52 | 19.75 | 19.00 | 19.46 | 829 | NASDAQ | ALGN | Wed, May 19, 2004 | 19.70 | 20.19 | 19.20 | 19.40 | 828 | NASDAQ | ALGN | Tue, May 18, 2004 | 19.49 | 19.64 | 19.20 | 19.61 | 827 | NASDAQ | ALGN | Mon, May 17, 2004 | 19.19 | 19.50 | 18.56 | 19.42 | 826 | NASDAQ | ALGN | Fri, May 14, 2004 | 19.15 | 19.49 | 18.95 | 19.32 | 825 | NASDAQ | ALGN | Thu, May 13, 2004 | 18.48 | 19.34 | 18.46 | 19.11 | 824 | NASDAQ | ALGN | Wed, May 12, 2004 | 18.73 | 18.98 | 18.05 | 18.80 | 823 | NASDAQ | ALGN | Tue, May 11, 2004 | 18.30 | 18.69 | 18.02 | 18.68 | 822 | NASDAQ | ALGN | Mon, May 10, 2004 | 18.00 | 18.34 | 17.25 | 18.04 | 821 | NASDAQ | ALGN | Fri, May 7, 2004 | 18.21 | 18.87 | 17.97 | 18.00 | 820 | NASDAQ | ALGN | Thu, May 6, 2004 | 18.84 | 18.84 | 17.98 | 18.30 | 819 | NASDAQ | ALGN | Wed, May 5, 2004 | 18.75 | 18.95 | 18.43 | 18.86 | 818 | NASDAQ | ALGN | Tue, May 4, 2004 | 18.60 | 18.86 | 17.88 | 18.74 | 817 | NASDAQ | ALGN | Mon, May 3, 2004 | 17.67 | 18.60 | 17.28 | 18.46 | 816 | NASDAQ | ALGN | Fri, Apr 30, 2004 | 18.38 | 18.38 | 17.32 | 17.36 | 815 | NASDAQ | ALGN | Thu, Apr 29, 2004 | 18.16 | 18.60 | 17.84 | 18.03 | 814 | NASDAQ | ALGN | Wed, Apr 28, 2004 | 18.86 | 19.00 | 18.16 | 18.20 | 813 | NASDAQ | ALGN | Tue, Apr 27, 2004 | 18.90 | 19.15 | 18.70 | 18.95 | 812 | NASDAQ | ALGN | Mon, Apr 26, 2004 | 19.25 | 19.29 | 18.75 | 18.98 | 811 | NASDAQ | ALGN | Fri, Apr 23, 2004 | 19.32 | 19.32 | 18.80 | 19.00 | 810 | NASDAQ | ALGN | Thu, Apr 22, 2004 | 21.00 | 21.00 | 18.37 | 19.20 | 809 | NASDAQ | ALGN | Wed, Apr 21, 2004 | 20.60 | 21.73 | 20.00 | 21.24 | 808 | NASDAQ | ALGN | Tue, Apr 20, 2004 | 22.75 | 22.75 | 20.68 | 20.77 | 807 | NASDAQ | ALGN | Mon, Apr 19, 2004 | 22.10 | 22.81 | 21.90 | 22.80 | 806 | NASDAQ | ALGN | Fri, Apr 16, 2004 | 21.76 | 22.40 | 21.30 | 22.06 | 805 | NASDAQ | ALGN | Thu, Apr 15, 2004 | 22.07 | 22.29 | 21.54 | 21.70 | 804 | NASDAQ | ALGN | Wed, Apr 14, 2004 | 21.41 | 22.15 | 20.75 | 22.03 | 803 | NASDAQ | ALGN | Tue, Apr 13, 2004 | 22.45 | 22.60 | 21.42 | 21.50 | 802 | NASDAQ | ALGN | Mon, Apr 12, 2004 | 20.35 | 22.75 | 20.17 | 22.43 | 801 | NASDAQ | ALGN | Thu, Apr 8, 2004 | 20.74 | 20.96 | 20.19 | 20.42 | 800 | NASDAQ | ALGN | Wed, Apr 7, 2004 | 20.81 | 21.05 | 20.50 | 20.58 | 799 | NASDAQ | ALGN | Tue, Apr 6, 2004 | 20.98 | 21.12 | 20.66 | 20.80 | 798 | NASDAQ | ALGN | Mon, Apr 5, 2004 | 20.31 | 21.19 | 20.06 | 21.05 | 797 | NASDAQ | ALGN | Fri, Apr 2, 2004 | 20.00 | 20.50 | 19.95 | 20.26 | 796 | NASDAQ | ALGN | Thu, Apr 1, 2004 | 19.22 | 20.00 | 19.18 | 19.93 | 795 | NASDAQ | ALGN | Wed, Mar 31, 2004 | 19.49 | 19.57 | 18.96 | 19.01 | 794 | NASDAQ | ALGN | Tue, Mar 30, 2004 | 19.38 | 19.70 | 19.27 | 19.40 | 793 | NASDAQ | ALGN | Mon, Mar 29, 2004 | 19.14 | 19.65 | 19.14 | 19.45 | 792 | NASDAQ | ALGN | Fri, Mar 26, 2004 | 18.84 | 19.15 | 18.72 | 18.97 | 791 | NASDAQ | ALGN | Thu, Mar 25, 2004 | 18.20 | 19.00 | 18.01 | 18.85 | 790 | NASDAQ | ALGN | Wed, Mar 24, 2004 | 17.75 | 18.24 | 17.75 | 18.01 | 789 | NASDAQ | ALGN | Tue, Mar 23, 2004 | 18.38 | 18.38 | 17.57 | 18.00 | 788 | NASDAQ | ALGN | Mon, Mar 22, 2004 | 18.53 | 18.60 | 17.76 | 17.97 | 787 | NASDAQ | ALGN | Fri, Mar 19, 2004 | 18.86 | 18.88 | 18.35 | 18.51 | 786 | NASDAQ | ALGN | Thu, Mar 18, 2004 | 18.14 | 18.81 | 18.14 | 18.35 | 785 | NASDAQ | ALGN | Wed, Mar 17, 2004 | 18.25 | 18.75 | 18.22 | 18.39 | 784 | NASDAQ | ALGN | Tue, Mar 16, 2004 | 17.91 | 18.22 | 17.45 | 18.09 | 783 | NASDAQ | ALGN | Mon, Mar 15, 2004 | 18.70 | 18.79 | 17.77 | 17.93 | 782 | NASDAQ | ALGN | Fri, Mar 12, 2004 | 18.00 | 19.05 | 17.99 | 18.73 | 781 | NASDAQ | ALGN | Thu, Mar 11, 2004 | 18.75 | 19.04 | 18.11 | 18.20 | 780 | NASDAQ | ALGN | Wed, Mar 10, 2004 | 18.96 | 19.59 | 18.61 | 18.75 | 779 | NASDAQ | ALGN | Tue, Mar 9, 2004 | 19.10 | 19.46 | 18.87 | 19.14 | 778 | NASDAQ | ALGN | Mon, Mar 8, 2004 | 19.60 | 20.19 | 19.10 | 19.11 | 777 | NASDAQ | ALGN | Fri, Mar 5, 2004 | 19.90 | 20.23 | 19.36 | 19.66 | 776 | NASDAQ | ALGN | Thu, Mar 4, 2004 | 19.30 | 20.00 | 18.81 | 19.93 | 775 | NASDAQ | ALGN | Wed, Mar 3, 2004 | 19.30 | 19.83 | 19.26 | 19.48 | 774 | NASDAQ | ALGN | Tue, Mar 2, 2004 | 19.52 | 19.85 | 19.50 | 19.57 | 773 | NASDAQ | ALGN | Mon, Mar 1, 2004 | 19.62 | 19.84 | 19.55 | 19.61 | 772 | NASDAQ | ALGN | Fri, Feb 27, 2004 | 19.58 | 19.75 | 19.52 | 19.67 | 771 | NASDAQ | ALGN | Thu, Feb 26, 2004 | 20.19 | 20.24 | 19.50 | 19.70 | 770 | NASDAQ | ALGN | Wed, Feb 25, 2004 | 19.69 | 20.06 | 19.38 | 20.06 | 769 | NASDAQ | ALGN | Tue, Feb 24, 2004 | 19.71 | 20.48 | 19.12 | 19.52 | 768 | NASDAQ | ALGN | Mon, Feb 23, 2004 | 19.99 | 20.22 | 19.51 | 19.97 | 767 | NASDAQ | ALGN | Fri, Feb 20, 2004 | 19.66 | 20.25 | 19.52 | 20.02 | 766 | NASDAQ | ALGN | Thu, Feb 19, 2004 | 20.38 | 20.75 | 19.68 | 19.68 | 765 | NASDAQ | ALGN | Wed, Feb 18, 2004 | 20.90 | 21.08 | 20.25 | 20.35 | 764 | NASDAQ | ALGN | Tue, Feb 17, 2004 | 20.55 | 21.25 | 20.45 | 20.83 | 763 | NASDAQ | ALGN | Fri, Feb 13, 2004 | 21.56 | 21.59 | 20.28 | 20.29 | 762 | NASDAQ | ALGN | Thu, Feb 12, 2004 | 21.31 | 21.80 | 21.15 | 21.39 | 761 | NASDAQ | ALGN | Wed, Feb 11, 2004 | 20.75 | 21.50 | 20.59 | 21.42 | 760 | NASDAQ | ALGN | Tue, Feb 10, 2004 | 20.54 | 20.99 | 20.44 | 20.70 | 759 | NASDAQ | ALGN | Mon, Feb 9, 2004 | 20.52 | 20.83 | 20.15 | 20.79 | 758 | NASDAQ | ALGN | Fri, Feb 6, 2004 | 20.47 | 20.80 | 20.02 | 20.68 | 757 | NASDAQ | ALGN | Thu, Feb 5, 2004 | 19.95 | 20.45 | 19.95 | 20.25 | 756 | NASDAQ | ALGN | Wed, Feb 4, 2004 | 20.15 | 20.25 | 19.80 | 20.00 | 755 | NASDAQ | ALGN | Tue, Feb 3, 2004 | 20.56 | 21.13 | 20.25 | 20.81 | 754 | NASDAQ | ALGN | Mon, Feb 2, 2004 | 21.00 | 21.10 | 19.90 | 20.68 | 753 | NASDAQ | ALGN | Fri, Jan 30, 2004 | 19.17 | 21.48 | 18.20 | 20.75 | 752 | NASDAQ | ALGN | Thu, Jan 29, 2004 | 20.35 | 20.50 | 16.55 | 19.00 | 751 | NASDAQ | ALGN | Wed, Jan 28, 2004 | 21.27 | 21.48 | 19.62 | 19.74 | 750 | NASDAQ | ALGN | Tue, Jan 27, 2004 | 21.80 | 21.85 | 21.02 | 21.45 | 749 | NASDAQ | ALGN | Mon, Jan 26, 2004 | 20.70 | 21.90 | 20.52 | 21.79 | 748 | NASDAQ | ALGN | Fri, Jan 23, 2004 | 20.43 | 20.90 | 20.24 | 20.78 | 747 | NASDAQ | ALGN | Thu, Jan 22, 2004 | 20.55 | 20.76 | 19.60 | 20.00 | 746 | NASDAQ | ALGN | Wed, Jan 21, 2004 | 20.39 | 21.00 | 20.08 | 20.39 | 745 | NASDAQ | ALGN | Tue, Jan 20, 2004 | 20.20 | 20.50 | 19.95 | 20.48 | 744 | NASDAQ | ALGN | Fri, Jan 16, 2004 | 19.40 | 20.94 | 19.17 | 20.06 | 743 | NASDAQ | ALGN | Thu, Jan 15, 2004 | 19.79 | 19.82 | 18.90 | 19.20 | 742 | NASDAQ | ALGN | Wed, Jan 14, 2004 | 19.49 | 19.85 | 18.76 | 19.68 | 741 | NASDAQ | ALGN | Tue, Jan 13, 2004 | 19.75 | 19.82 | 18.43 | 19.17 | 740 | NASDAQ | ALGN | Mon, Jan 12, 2004 | 18.42 | 19.79 | 18.26 | 19.79 | 739 | NASDAQ | ALGN | Fri, Jan 9, 2004 | 18.65 | 18.85 | 18.20 | 18.50 | 738 | NASDAQ | ALGN | Thu, Jan 8, 2004 | 18.77 | 18.80 | 18.01 | 18.68 | 737 | NASDAQ | ALGN | Wed, Jan 7, 2004 | 17.88 | 18.79 | 17.83 | 18.70 | 736 | NASDAQ | ALGN | Tue, Jan 6, 2004 | 17.74 | 18.18 | 17.40 | 18.18 | 735 | NASDAQ | ALGN | Mon, Jan 5, 2004 | 17.19 | 18.05 | 16.82 | 17.59 | 734 | NASDAQ | ALGN | Fri, Jan 2, 2004 | 16.74 | 17.05 | 16.47 | 16.69 | 733 | NASDAQ | ALGN | Wed, Dec 31, 2003 | 16.90 | 17.07 | 16.46 | 16.51 | 732 | NASDAQ | ALGN | Tue, Dec 30, 2003 | 16.79 | 17.29 | 16.70 | 16.94 | 731 | NASDAQ | ALGN | Mon, Dec 29, 2003 | 16.76 | 17.10 | 16.59 | 16.80 | 730 | NASDAQ | ALGN | Fri, Dec 26, 2003 | 16.50 | 16.77 | 16.50 | 16.70 | 729 | NASDAQ | ALGN | Wed, Dec 24, 2003 | 16.79 | 16.80 | 16.60 | 16.61 | 728 | NASDAQ | ALGN | Tue, Dec 23, 2003 | 16.86 | 17.18 | 16.65 | 16.80 | 727 | NASDAQ | ALGN | Mon, Dec 22, 2003 | 17.00 | 17.10 | 16.56 | 16.91 | 726 | NASDAQ | ALGN | Fri, Dec 19, 2003 | 17.45 | 17.47 | 16.85 | 17.09 | 725 | NASDAQ | ALGN | Thu, Dec 18, 2003 | 16.31 | 17.20 | 16.31 | 17.18 | 724 | NASDAQ | ALGN | Wed, Dec 17, 2003 | 16.56 | 16.70 | 16.00 | 16.34 | 723 | NASDAQ | ALGN | Tue, Dec 16, 2003 | 16.73 | 17.03 | 16.20 | 16.77 | 722 | NASDAQ | ALGN | Mon, Dec 15, 2003 | 17.28 | 17.51 | 16.59 | 16.74 | 721 | NASDAQ | ALGN | Fri, Dec 12, 2003 | 16.93 | 17.00 | 16.30 | 16.87 | 720 | NASDAQ | ALGN | Thu, Dec 11, 2003 | 15.88 | 16.85 | 15.77 | 16.85 | 719 | NASDAQ | ALGN | Wed, Dec 10, 2003 | 16.34 | 16.73 | 15.52 | 15.88 | 718 | NASDAQ | ALGN | Tue, Dec 9, 2003 | 16.70 | 16.94 | 16.36 | 16.40 | 717 | NASDAQ | ALGN | Mon, Dec 8, 2003 | 16.55 | 16.95 | 16.23 | 16.63 | 716 | NASDAQ | ALGN | Fri, Dec 5, 2003 | 16.77 | 17.25 | 16.66 | 16.68 | 715 | NASDAQ | ALGN | Thu, Dec 4, 2003 | 17.65 | 17.90 | 16.56 | 17.23 | 714 | NASDAQ | ALGN | Wed, Dec 3, 2003 | 18.80 | 18.80 | 17.54 | 17.61 | 713 | NASDAQ | ALGN | Tue, Dec 2, 2003 | 18.85 | 18.97 | 18.45 | 18.56 | 712 | NASDAQ | ALGN | Mon, Dec 1, 2003 | 18.04 | 18.85 | 17.92 | 18.61 | 711 | NASDAQ | ALGN | Fri, Nov 28, 2003 | 17.42 | 18.01 | 17.00 | 17.94 | 710 | NASDAQ | ALGN | Wed, Nov 26, 2003 | 17.36 | 17.69 | 16.71 | 17.32 | 709 | NASDAQ | ALGN | Tue, Nov 25, 2003 | 17.33 | 17.69 | 17.19 | 17.23 | 708 | NASDAQ | ALGN | Mon, Nov 24, 2003 | 16.25 | 17.34 | 16.21 | 17.25 | 707 | NASDAQ | ALGN | Fri, Nov 21, 2003 | 16.17 | 16.40 | 16.00 | 16.14 | 706 | NASDAQ | ALGN | Thu, Nov 20, 2003 | 16.10 | 16.75 | 15.89 | 16.06 | 705 | NASDAQ | ALGN | Wed, Nov 19, 2003 | 15.68 | 16.29 | 15.68 | 16.16 | 704 | NASDAQ | ALGN | Tue, Nov 18, 2003 | 15.96 | 16.10 | 15.65 | 15.66 | 703 | NASDAQ | ALGN | Mon, Nov 17, 2003 | 16.78 | 16.90 | 15.10 | 15.89 | 702 | NASDAQ | ALGN | Fri, Nov 14, 2003 | 17.00 | 17.30 | 16.70 | 16.88 | 701 | NASDAQ | ALGN | Thu, Nov 13, 2003 | 16.79 | 17.00 | 16.55 | 16.87 | 700 | NASDAQ | ALGN | Wed, Nov 12, 2003 | 17.01 | 17.86 | 16.89 | 17.79 | 699 | NASDAQ | ALGN | Tue, Nov 11, 2003 | 17.51 | 17.60 | 16.67 | 16.95 | 698 | NASDAQ | ALGN | Mon, Nov 10, 2003 | 17.80 | 17.80 | 17.10 | 17.55 | 697 | NASDAQ | ALGN | Fri, Nov 7, 2003 | 17.91 | 17.96 | 17.51 | 17.87 | 696 | NASDAQ | ALGN | Thu, Nov 6, 2003 | 16.96 | 17.87 | 16.85 | 17.73 | 695 | NASDAQ | ALGN | Wed, Nov 5, 2003 | 17.00 | 17.15 | 16.50 | 16.94 | 694 | NASDAQ | ALGN | Tue, Nov 4, 2003 | 16.80 | 17.33 | 16.30 | 17.02 | 693 | NASDAQ | ALGN | Mon, Nov 3, 2003 | 15.22 | 16.97 | 15.20 | 16.93 | 692 | NASDAQ | ALGN | Fri, Oct 31, 2003 | 15.40 | 15.46 | 15.21 | 15.41 | 691 | NASDAQ | ALGN | Thu, Oct 30, 2003 | 15.36 | 15.45 | 15.00 | 15.30 | 690 | NASDAQ | ALGN | Wed, Oct 29, 2003 | 15.68 | 15.72 | 15.10 | 15.65 | 689 | NASDAQ | ALGN | Tue, Oct 28, 2003 | 15.40 | 16.14 | 15.20 | 16.13 | 688 | NASDAQ | ALGN | Mon, Oct 27, 2003 | 14.57 | 15.52 | 14.50 | 15.40 | 687 | NASDAQ | ALGN | Fri, Oct 24, 2003 | 14.09 | 14.79 | 13.52 | 14.62 | 686 | NASDAQ | ALGN | Thu, Oct 23, 2003 | 13.62 | 15.30 | 13.50 | 14.09 | 685 | NASDAQ | ALGN | Wed, Oct 22, 2003 | 14.50 | 14.80 | 14.00 | 14.00 | 684 | NASDAQ | ALGN | Tue, Oct 21, 2003 | 14.35 | 14.90 | 14.20 | 14.69 | 683 | NASDAQ | ALGN | Mon, Oct 20, 2003 | 15.20 | 15.52 | 13.50 | 14.30 | 682 | NASDAQ | ALGN | Fri, Oct 17, 2003 | 15.85 | 15.99 | 15.21 | 15.21 | 681 | NASDAQ | ALGN | Thu, Oct 16, 2003 | 15.17 | 15.84 | 15.05 | 15.76 | 680 | NASDAQ | ALGN | Wed, Oct 15, 2003 | 16.19 | 16.20 | 15.27 | 15.46 | 679 | NASDAQ | ALGN | Tue, Oct 14, 2003 | 15.62 | 16.27 | 15.40 | 16.12 | 678 | NASDAQ | ALGN | Mon, Oct 13, 2003 | 16.00 | 16.06 | 14.80 | 15.48 | 677 | NASDAQ | ALGN | Fri, Oct 10, 2003 | 15.85 | 16.08 | 15.23 | 15.60 | 676 | NASDAQ | ALGN | Thu, Oct 9, 2003 | 13.61 | 15.46 | 13.37 | 15.38 | 675 | NASDAQ | ALGN | Wed, Oct 8, 2003 | 13.69 | 13.86 | 13.32 | 13.49 | 674 | NASDAQ | ALGN | Tue, Oct 7, 2003 | 13.47 | 13.87 | 13.21 | 13.65 | 673 | NASDAQ | ALGN | Mon, Oct 6, 2003 | 13.46 | 13.90 | 13.44 | 13.85 | 672 | NASDAQ | ALGN | Fri, Oct 3, 2003 | 13.44 | 13.76 | 13.29 | 13.63 | 671 | NASDAQ | ALGN | Thu, Oct 2, 2003 | 12.78 | 13.44 | 12.78 | 13.40 | 670 | NASDAQ | ALGN | Wed, Oct 1, 2003 | 12.50 | 13.06 | 12.49 | 12.85 | 669 | NASDAQ | ALGN | Tue, Sep 30, 2003 | 12.66 | 12.88 | 12.48 | 12.51 | 668 | NASDAQ | ALGN | Mon, Sep 29, 2003 | 12.84 | 13.10 | 12.45 | 12.70 | 667 | NASDAQ | ALGN | Fri, Sep 26, 2003 | 12.95 | 12.95 | 12.44 | 12.93 | 666 | NASDAQ | ALGN | Thu, Sep 25, 2003 | 13.05 | 13.48 | 12.85 | 12.95 | 665 | NASDAQ | ALGN | Wed, Sep 24, 2003 | 13.77 | 13.77 | 12.85 | 13.09 | 664 | NASDAQ | ALGN | Tue, Sep 23, 2003 | 13.85 | 13.98 | 13.55 | 13.75 | 663 | NASDAQ | ALGN | Mon, Sep 22, 2003 | 13.74 | 14.05 | 13.49 | 13.82 | 662 | NASDAQ | ALGN | Fri, Sep 19, 2003 | 13.76 | 14.00 | 13.66 | 13.94 | 661 | NASDAQ | ALGN | Thu, Sep 18, 2003 | 13.95 | 14.06 | 13.81 | 13.94 | 660 | NASDAQ | ALGN | Wed, Sep 17, 2003 | 14.08 | 14.19 | 13.81 | 13.95 | 659 | NASDAQ | ALGN | Tue, Sep 16, 2003 | 13.59 | 14.25 | 13.44 | 14.09 | 658 | NASDAQ | ALGN | Mon, Sep 15, 2003 | 13.79 | 13.85 | 13.45 | 13.54 | 657 | NASDAQ | ALGN | Fri, Sep 12, 2003 | 13.71 | 13.81 | 13.45 | 13.69 | 656 | NASDAQ | ALGN | Thu, Sep 11, 2003 | 13.56 | 13.94 | 13.49 | 13.73 | 655 | NASDAQ | ALGN | Wed, Sep 10, 2003 | 13.00 | 13.39 | 12.76 | 13.25 | 654 | NASDAQ | ALGN | Tue, Sep 9, 2003 | 13.79 | 13.80 | 13.14 | 13.34 | 653 | NASDAQ | ALGN | Mon, Sep 8, 2003 | 13.63 | 13.80 | 13.58 | 13.75 | 652 | NASDAQ | ALGN | Fri, Sep 5, 2003 | 13.24 | 13.69 | 12.68 | 13.49 | 651 | NASDAQ | ALGN | Thu, Sep 4, 2003 | 12.65 | 13.50 | 12.35 | 13.40 | 650 | NASDAQ | ALGN | Wed, Sep 3, 2003 | 11.58 | 12.70 | 11.54 | 12.53 | 649 | NASDAQ | ALGN | Tue, Sep 2, 2003 | 11.00 | 11.50 | 10.85 | 11.30 | 648 | NASDAQ | ALGN | Fri, Aug 29, 2003 | 10.84 | 11.13 | 10.78 | 11.07 | 647 | NASDAQ | ALGN | Thu, Aug 28, 2003 | 10.45 | 10.79 | 10.45 | 10.62 | 646 | NASDAQ | ALGN | Wed, Aug 27, 2003 | 10.23 | 10.82 | 10.23 | 10.76 | 645 | NASDAQ | ALGN | Tue, Aug 26, 2003 | 10.62 | 10.72 | 10.15 | 10.45 | 644 | NASDAQ | ALGN | Mon, Aug 25, 2003 | 11.14 | 11.15 | 10.60 | 10.80 | 643 | NASDAQ | ALGN | Fri, Aug 22, 2003 | 11.20 | 11.60 | 11.10 | 11.23 | 642 | NASDAQ | ALGN | Thu, Aug 21, 2003 | 11.55 | 11.60 | 11.13 | 11.30 | 641 | NASDAQ | ALGN | Wed, Aug 20, 2003 | 11.23 | 11.60 | 11.22 | 11.53 | 640 | NASDAQ | ALGN | Tue, Aug 19, 2003 | 11.66 | 11.75 | 11.38 | 11.45 | 639 | NASDAQ | ALGN | Mon, Aug 18, 2003 | 11.58 | 11.77 | 11.25 | 11.56 | 638 | NASDAQ | ALGN | Fri, Aug 15, 2003 | 11.20 | 11.59 | 11.06 | 11.18 | 637 | NASDAQ | ALGN | Thu, Aug 14, 2003 | 11.75 | 12.06 | 11.10 | 11.39 | 636 | NASDAQ | ALGN | Wed, Aug 13, 2003 | 11.40 | 12.55 | 11.40 | 11.84 | 635 | NASDAQ | ALGN | Tue, Aug 12, 2003 | 11.49 | 11.65 | 11.26 | 11.40 | 634 | NASDAQ | ALGN | Mon, Aug 11, 2003 | 11.42 | 12.20 | 11.14 | 11.27 | 633 | NASDAQ | ALGN | Fri, Aug 8, 2003 | 11.05 | 11.30 | 11.00 | 11.13 | 632 | NASDAQ | ALGN | Thu, Aug 7, 2003 | 11.06 | 11.25 | 10.95 | 11.05 | 631 | NASDAQ | ALGN | Wed, Aug 6, 2003 | 12.20 | 12.40 | 10.94 | 11.17 | 630 | NASDAQ | ALGN | Tue, Aug 5, 2003 | 11.99 | 12.20 | 11.82 | 11.95 | 629 | NASDAQ | ALGN | Mon, Aug 4, 2003 | 12.29 | 12.33 | 11.77 | 11.84 | 628 | NASDAQ | ALGN | Fri, Aug 1, 2003 | 12.84 | 13.00 | 12.29 | 12.46 | 627 | NASDAQ | ALGN | Thu, Jul 31, 2003 | 13.50 | 13.50 | 12.56 | 13.00 | 626 | NASDAQ | ALGN | Wed, Jul 30, 2003 | 13.15 | 13.85 | 12.90 | 13.55 | 625 | NASDAQ | ALGN | Tue, Jul 29, 2003 | 14.29 | 14.33 | 13.00 | 13.26 | 624 | NASDAQ | ALGN | Mon, Jul 28, 2003 | 13.96 | 14.37 | 13.80 | 14.30 | 623 | NASDAQ | ALGN | Fri, Jul 25, 2003 | 12.04 | 14.00 | 11.65 | 13.83 | 622 | NASDAQ | ALGN | Thu, Jul 24, 2003 | 12.50 | 13.00 | 12.33 | 12.63 | 621 | NASDAQ | ALGN | Wed, Jul 23, 2003 | 11.60 | 12.31 | 11.50 | 12.30 | 620 | NASDAQ | ALGN | Tue, Jul 22, 2003 | 11.16 | 11.83 | 10.50 | 11.59 | 619 | NASDAQ | ALGN | Mon, Jul 21, 2003 | 11.54 | 12.02 | 10.47 | 11.22 | 618 | NASDAQ | ALGN | Fri, Jul 18, 2003 | 11.08 | 11.85 | 9.94 | 11.35 | 617 | NASDAQ | ALGN | Thu, Jul 17, 2003 | 12.79 | 12.99 | 11.10 | 11.11 | 616 | NASDAQ | ALGN | Wed, Jul 16, 2003 | 13.55 | 13.55 | 12.50 | 13.00 | 615 | NASDAQ | ALGN | Tue, Jul 15, 2003 | 13.26 | 13.60 | 13.05 | 13.47 | 614 | NASDAQ | ALGN | Mon, Jul 14, 2003 | 13.10 | 13.70 | 13.05 | 13.18 | 613 | NASDAQ | ALGN | Fri, Jul 11, 2003 | 13.29 | 13.90 | 13.24 | 13.38 | 612 | NASDAQ | ALGN | Thu, Jul 10, 2003 | 14.30 | 14.30 | 12.90 | 13.50 | 611 | NASDAQ | ALGN | Wed, Jul 9, 2003 | 13.34 | 13.95 | 12.50 | 13.85 | 610 | NASDAQ | ALGN | Tue, Jul 8, 2003 | 14.10 | 14.10 | 13.29 | 13.37 | 609 | NASDAQ | ALGN | Mon, Jul 7, 2003 | 14.70 | 14.77 | 14.00 | 14.10 | 608 | NASDAQ | ALGN | Thu, Jul 3, 2003 | 13.60 | 14.01 | 13.50 | 13.80 | 607 | NASDAQ | ALGN | Wed, Jul 2, 2003 | 13.11 | 13.72 | 12.89 | 13.60 | 606 | NASDAQ | ALGN | Tue, Jul 1, 2003 | 13.04 | 13.07 | 12.19 | 13.04 | 605 | NASDAQ | ALGN | Mon, Jun 30, 2003 | 11.88 | 12.69 | 11.85 | 12.60 | 604 | NASDAQ | ALGN | Fri, Jun 27, 2003 | 11.50 | 12.06 | 11.50 | 11.87 | 603 | NASDAQ | ALGN | Thu, Jun 26, 2003 | 11.53 | 11.75 | 10.68 | 11.74 | 602 | NASDAQ | ALGN | Wed, Jun 25, 2003 | 11.40 | 11.51 | 11.26 | 11.37 | 601 | NASDAQ | ALGN | Tue, Jun 24, 2003 | 11.50 | 11.75 | 11.48 | 11.48 | 600 | NASDAQ | ALGN | Mon, Jun 23, 2003 | 11.98 | 11.98 | 11.25 | 11.50 | 599 | NASDAQ | ALGN | Fri, Jun 20, 2003 | 11.95 | 11.98 | 11.50 | 11.75 | 598 | NASDAQ | ALGN | Thu, Jun 19, 2003 | 11.75 | 11.90 | 11.50 | 11.66 | 597 | NASDAQ | ALGN | Wed, Jun 18, 2003 | 12.01 | 12.03 | 11.35 | 11.81 | 596 | NASDAQ | ALGN | Tue, Jun 17, 2003 | 11.83 | 11.91 | 11.36 | 11.90 | 595 | NASDAQ | ALGN | Mon, Jun 16, 2003 | 10.75 | 12.07 | 10.65 | 11.75 | 594 | NASDAQ | ALGN | Fri, Jun 13, 2003 | 11.02 | 11.14 | 10.75 | 10.81 | 593 | NASDAQ | ALGN | Thu, Jun 12, 2003 | 10.98 | 11.25 | 10.75 | 11.00 | 592 | NASDAQ | ALGN | Wed, Jun 11, 2003 | 10.00 | 11.09 | 9.85 | 10.89 | 591 | NASDAQ | ALGN | Tue, Jun 10, 2003 | 9.69 | 10.38 | 9.40 | 10.08 | 590 | NASDAQ | ALGN | Mon, Jun 9, 2003 | 9.33 | 10.08 | 9.25 | 9.68 | 589 | NASDAQ | ALGN | Fri, Jun 6, 2003 | 10.10 | 10.38 | 9.34 | 9.49 | 588 | NASDAQ | ALGN | Thu, Jun 5, 2003 | 10.41 | 10.61 | 10.01 | 10.22 | 587 | NASDAQ | ALGN | Wed, Jun 4, 2003 | 10.40 | 10.73 | 10.25 | 10.30 | 586 | NASDAQ | ALGN | Tue, Jun 3, 2003 | 10.16 | 10.65 | 10.03 | 10.30 | 585 | NASDAQ | ALGN | Mon, Jun 2, 2003 | 10.17 | 10.85 | 10.00 | 10.23 | 584 | NASDAQ | ALGN | Fri, May 30, 2003 | 10.55 | 10.65 | 10.06 | 10.13 | 583 | NASDAQ | ALGN | Thu, May 29, 2003 | 9.55 | 11.40 | 9.48 | 10.61 | 582 | NASDAQ | ALGN | Wed, May 28, 2003 | 9.40 | 10.09 | 8.81 | 9.65 | 581 | NASDAQ | ALGN | Tue, May 27, 2003 | 9.15 | 9.29 | 8.70 | 9.28 | 580 | NASDAQ | ALGN | Fri, May 23, 2003 | 9.05 | 9.15 | 8.80 | 9.08 | 579 | NASDAQ | ALGN | Thu, May 22, 2003 | 8.95 | 9.34 | 8.71 | 9.08 | 578 | NASDAQ | ALGN | Wed, May 21, 2003 | 6.80 | 9.19 | 6.80 | 8.89 | 577 | NASDAQ | ALGN | Tue, May 20, 2003 | 7.99 | 8.07 | 7.25 | 7.89 | 576 | NASDAQ | ALGN | Mon, May 19, 2003 | 8.38 | 8.51 | 7.97 | 7.98 | 575 | NASDAQ | ALGN | Fri, May 16, 2003 | 8.78 | 8.84 | 8.42 | 8.43 | 574 | NASDAQ | ALGN | Thu, May 15, 2003 | 8.80 | 8.84 | 8.56 | 8.84 | 573 | NASDAQ | ALGN | Wed, May 14, 2003 | 8.75 | 8.79 | 8.55 | 8.66 | 572 | NASDAQ | ALGN | Tue, May 13, 2003 | 8.56 | 8.75 | 8.40 | 8.72 | 571 | NASDAQ | ALGN | Mon, May 12, 2003 | 8.00 | 8.79 | 7.95 | 8.70 | 570 | NASDAQ | ALGN | Fri, May 9, 2003 | 7.86 | 8.38 | 7.84 | 8.01 | 569 | NASDAQ | ALGN | Thu, May 8, 2003 | 7.80 | 7.99 | 7.50 | 7.78 | 568 | NASDAQ | ALGN | Wed, May 7, 2003 | 8.15 | 8.16 | 7.75 | 7.79 | 567 | NASDAQ | ALGN | Tue, May 6, 2003 | 8.09 | 8.47 | 8.05 | 8.16 | 566 | NASDAQ | ALGN | Mon, May 5, 2003 | 7.99 | 8.47 | 7.79 | 8.16 | 565 | NASDAQ | ALGN | Fri, May 2, 2003 | 7.95 | 8.02 | 7.75 | 7.85 | 564 | NASDAQ | ALGN | Thu, May 1, 2003 | 7.66 | 7.88 | 7.19 | 7.88 | 563 | NASDAQ | ALGN | Wed, Apr 30, 2003 | 7.22 | 7.66 | 7.15 | 7.52 | 562 | NASDAQ | ALGN | Tue, Apr 29, 2003 | 6.37 | 7.35 | 6.37 | 7.10 | 561 | NASDAQ | ALGN | Mon, Apr 28, 2003 | 6.19 | 6.46 | 6.01 | 6.46 | 560 | NASDAQ | ALGN | Fri, Apr 25, 2003 | 6.10 | 6.59 | 5.96 | 6.12 | 559 | NASDAQ | ALGN | Thu, Apr 24, 2003 | 6.49 | 6.50 | 5.53 | 5.75 | 558 | NASDAQ | ALGN | Wed, Apr 23, 2003 | 6.20 | 6.35 | 5.93 | 6.15 | 557 | NASDAQ | ALGN | Tue, Apr 22, 2003 | 6.15 | 6.40 | 5.90 | 6.20 | 556 | NASDAQ | ALGN | Mon, Apr 21, 2003 | 6.70 | 6.89 | 6.20 | 6.21 | 555 | NASDAQ | ALGN | Thu, Apr 17, 2003 | 6.73 | 6.90 | 6.65 | 6.84 | 554 | NASDAQ | ALGN | Wed, Apr 16, 2003 | 6.93 | 6.93 | 6.66 | 6.67 | 553 | NASDAQ | ALGN | Tue, Apr 15, 2003 | 6.79 | 6.85 | 6.59 | 6.85 | 552 | NASDAQ | ALGN | Mon, Apr 14, 2003 | 6.60 | 6.79 | 6.47 | 6.76 | 551 | NASDAQ | ALGN | Fri, Apr 11, 2003 | 6.66 | 6.90 | 6.34 | 6.66 | 550 | NASDAQ | ALGN | Thu, Apr 10, 2003 | 6.77 | 6.87 | 6.60 | 6.71 | 549 | NASDAQ | ALGN | Wed, Apr 9, 2003 | 6.63 | 6.89 | 6.61 | 6.83 | 548 | NASDAQ | ALGN | Tue, Apr 8, 2003 | 6.80 | 6.80 | 6.50 | 6.60 | 547 | NASDAQ | ALGN | Mon, Apr 7, 2003 | 6.79 | 6.98 | 6.50 | 6.62 | 546 | NASDAQ | ALGN | Fri, Apr 4, 2003 | 6.85 | 6.89 | 6.35 | 6.55 | 545 | NASDAQ | ALGN | Thu, Apr 3, 2003 | 6.89 | 7.00 | 6.56 | 6.64 | 544 | NASDAQ | ALGN | Wed, Apr 2, 2003 | 5.95 | 6.85 | 5.95 | 6.66 | 543 | NASDAQ | ALGN | Tue, Apr 1, 2003 | 6.13 | 6.13 | 5.90 | 6.00 | 542 | NASDAQ | ALGN | Mon, Mar 31, 2003 | 6.13 | 6.13 | 6.00 | 6.05 | 541 | NASDAQ | ALGN | Fri, Mar 28, 2003 | 6.00 | 6.24 | 5.95 | 6.13 | 540 | NASDAQ | ALGN | Thu, Mar 27, 2003 | 6.10 | 6.15 | 6.00 | 6.09 | 539 | NASDAQ | ALGN | Wed, Mar 26, 2003 | 5.64 | 6.24 | 5.50 | 6.08 | 538 | NASDAQ | ALGN | Tue, Mar 25, 2003 | 5.13 | 5.68 | 5.12 | 5.57 | 537 | NASDAQ | ALGN | Mon, Mar 24, 2003 | 5.40 | 5.44 | 5.10 | 5.27 | 536 | NASDAQ | ALGN | Fri, Mar 21, 2003 | 5.43 | 5.52 | 5.02 | 5.45 | 535 | NASDAQ | ALGN | Thu, Mar 20, 2003 | 5.26 | 5.50 | 4.97 | 5.39 | 534 | NASDAQ | ALGN | Wed, Mar 19, 2003 | 5.49 | 5.50 | 5.25 | 5.32 | 533 | NASDAQ | ALGN | Tue, Mar 18, 2003 | 5.40 | 5.50 | 5.25 | 5.48 | 532 | NASDAQ | ALGN | Mon, Mar 17, 2003 | 4.98 | 5.34 | 4.97 | 5.32 | 531 | NASDAQ | ALGN | Fri, Mar 14, 2003 | 5.00 | 5.20 | 4.90 | 5.20 | 530 | NASDAQ | ALGN | Thu, Mar 13, 2003 | 4.84 | 5.12 | 4.70 | 5.01 | 529 | NASDAQ | ALGN | Wed, Mar 12, 2003 | 4.72 | 4.84 | 4.71 | 4.84 | 528 | NASDAQ | ALGN | Tue, Mar 11, 2003 | 4.72 | 4.85 | 4.70 | 4.80 | 527 | NASDAQ | ALGN | Mon, Mar 10, 2003 | 4.69 | 4.75 | 4.66 | 4.71 | 526 | NASDAQ | ALGN | Fri, Mar 7, 2003 | 4.51 | 4.90 | 4.51 | 4.69 | 525 | NASDAQ | ALGN | Thu, Mar 6, 2003 | 4.50 | 4.51 | 4.32 | 4.51 | 524 | NASDAQ | ALGN | Wed, Mar 5, 2003 | 4.73 | 4.73 | 4.10 | 4.44 | 523 | NASDAQ | ALGN | Tue, Mar 4, 2003 | 4.81 | 4.85 | 4.51 | 4.65 | 522 | NASDAQ | ALGN | Mon, Mar 3, 2003 | 4.65 | 4.90 | 4.57 | 4.77 | 521 | NASDAQ | ALGN | Fri, Feb 28, 2003 | 4.79 | 4.99 | 4.58 | 4.71 | 520 | NASDAQ | ALGN | Thu, Feb 27, 2003 | 4.41 | 4.85 | 4.40 | 4.78 | 519 | NASDAQ | ALGN | Wed, Feb 26, 2003 | 4.56 | 4.75 | 4.26 | 4.65 | 518 | NASDAQ | ALGN | Tue, Feb 25, 2003 | 4.20 | 4.75 | 3.75 | 4.49 | 517 | NASDAQ | ALGN | Mon, Feb 24, 2003 | 4.29 | 4.37 | 4.20 | 4.20 | 516 | NASDAQ | ALGN | Fri, Feb 21, 2003 | 4.68 | 4.75 | 4.30 | 4.40 | 515 | NASDAQ | ALGN | Thu, Feb 20, 2003 | 4.04 | 4.75 | 3.99 | 4.62 | 514 | NASDAQ | ALGN | Wed, Feb 19, 2003 | 3.99 | 4.10 | 3.99 | 4.05 | 513 | NASDAQ | ALGN | Tue, Feb 18, 2003 | 4.01 | 4.10 | 3.96 | 4.00 | 512 | NASDAQ | ALGN | Fri, Feb 14, 2003 | 3.65 | 4.10 | 3.58 | 3.93 | 511 | NASDAQ | ALGN | Thu, Feb 13, 2003 | 3.55 | 3.65 | 3.50 | 3.60 | 510 | NASDAQ | ALGN | Wed, Feb 12, 2003 | 3.60 | 3.65 | 3.52 | 3.56 | 509 | NASDAQ | ALGN | Tue, Feb 11, 2003 | 3.65 | 3.65 | 3.50 | 3.59 | 508 | NASDAQ | ALGN | Mon, Feb 10, 2003 | 3.50 | 3.68 | 3.50 | 3.65 | 507 | NASDAQ | ALGN | Fri, Feb 7, 2003 | 3.53 | 3.65 | 3.50 | 3.65 | 506 | NASDAQ | ALGN | Thu, Feb 6, 2003 | 3.32 | 3.74 | 3.32 | 3.70 | 505 | NASDAQ | ALGN | Wed, Feb 5, 2003 | 3.20 | 3.53 | 3.11 | 3.43 | 504 | NASDAQ | ALGN | Tue, Feb 4, 2003 | 3.21 | 3.21 | 3.15 | 3.20 | 503 | NASDAQ | ALGN | Mon, Feb 3, 2003 | 3.30 | 3.34 | 3.21 | 3.30 | 502 | NASDAQ | ALGN | Fri, Jan 31, 2003 | 3.10 | 3.35 | 3.10 | 3.30 | 501 | NASDAQ | ALGN | Thu, Jan 30, 2003 | 3.12 | 3.35 | 3.02 | 3.13 | 500 | NASDAQ | ALGN | Wed, Jan 29, 2003 | 3.10 | 3.15 | 3.00 | 3.14 | 499 | NASDAQ | ALGN | Tue, Jan 28, 2003 | 2.91 | 3.20 | 2.91 | 3.19 | 498 | NASDAQ | ALGN | Mon, Jan 27, 2003 | 2.91 | 3.00 | 2.85 | 2.93 | 497 | NASDAQ | ALGN | Fri, Jan 24, 2003 | 3.21 | 3.33 | 3.01 | 3.01 | 496 | NASDAQ | ALGN | Thu, Jan 23, 2003 | 3.20 | 3.30 | 3.20 | 3.23 | 495 | NASDAQ | ALGN | Wed, Jan 22, 2003 | 3.30 | 3.30 | 3.20 | 3.22 | 494 | NASDAQ | ALGN | Tue, Jan 21, 2003 | 3.16 | 3.30 | 3.14 | 3.20 | 493 | NASDAQ | ALGN | Fri, Jan 17, 2003 | 3.19 | 3.29 | 3.17 | 3.25 | 492 | NASDAQ | ALGN | Thu, Jan 16, 2003 | 3.16 | 3.34 | 3.16 | 3.29 | 491 | NASDAQ | ALGN | Wed, Jan 15, 2003 | 3.15 | 3.27 | 3.13 | 3.19 | 490 | NASDAQ | ALGN | Tue, Jan 14, 2003 | 3.30 | 3.30 | 3.12 | 3.30 | 489 | NASDAQ | ALGN | Mon, Jan 13, 2003 | 3.22 | 3.34 | 3.19 | 3.25 | 488 | NASDAQ | ALGN | Fri, Jan 10, 2003 | 3.05 | 3.30 | 3.02 | 3.22 | 487 | NASDAQ | ALGN | Thu, Jan 9, 2003 | 3.00 | 3.09 | 2.98 | 3.07 | 486 | NASDAQ | ALGN | Wed, Jan 8, 2003 | 3.07 | 3.07 | 2.95 | 3.01 | 485 | NASDAQ | ALGN | Tue, Jan 7, 2003 | 2.93 | 3.07 | 2.87 | 3.03 | 484 | NASDAQ | ALGN | Mon, Jan 6, 2003 | 2.67 | 2.86 | 2.64 | 2.85 | 483 | NASDAQ | ALGN | Fri, Jan 3, 2003 | 2.78 | 2.78 | 2.54 | 2.63 | 482 | NASDAQ | ALGN | Thu, Jan 2, 2003 | 2.95 | 2.98 | 2.69 | 2.73 | 481 | NASDAQ | ALGN | Tue, Dec 31, 2002 | 2.93 | 2.97 | 2.70 | 2.76 | 480 | NASDAQ | ALGN | Mon, Dec 30, 2002 | 2.96 | 3.07 | 2.76 | 2.95 | 479 | NASDAQ | ALGN | Fri, Dec 27, 2002 | 2.96 | 3.15 | 2.91 | 2.98 | 478 | NASDAQ | ALGN | Thu, Dec 26, 2002 | 2.90 | 3.05 | 2.86 | 2.95 | 477 | NASDAQ | ALGN | Tue, Dec 24, 2002 | 2.95 | 2.99 | 2.90 | 2.90 | 476 | NASDAQ | ALGN | Mon, Dec 23, 2002 | 3.10 | 3.24 | 2.81 | 2.95 | 475 | NASDAQ | ALGN | Fri, Dec 20, 2002 | 2.97 | 3.30 | 2.86 | 3.05 | 474 | NASDAQ | ALGN | Thu, Dec 19, 2002 | 3.05 | 3.10 | 2.85 | 2.90 | 473 | NASDAQ | ALGN | Wed, Dec 18, 2002 | 3.25 | 3.37 | 2.98 | 3.05 | 472 | NASDAQ | ALGN | Tue, Dec 17, 2002 | 3.36 | 3.40 | 3.10 | 3.28 | 471 | NASDAQ | ALGN | Mon, Dec 16, 2002 | 3.18 | 3.50 | 3.05 | 3.43 | 470 | NASDAQ | ALGN | Fri, Dec 13, 2002 | 3.10 | 3.35 | 3.01 | 3.18 | 469 | NASDAQ | ALGN | Thu, Dec 12, 2002 | 2.75 | 3.15 | 2.75 | 3.00 | 468 | NASDAQ | ALGN | Wed, Dec 11, 2002 | 2.60 | 2.86 | 2.51 | 2.85 | 467 | NASDAQ | ALGN | Tue, Dec 10, 2002 | 2.61 | 2.65 | 2.50 | 2.54 | 466 | NASDAQ | ALGN | Mon, Dec 9, 2002 | 2.42 | 2.68 | 2.42 | 2.45 | 465 | NASDAQ | ALGN | Fri, Dec 6, 2002 | 2.41 | 2.48 | 2.38 | 2.44 | 464 | NASDAQ | ALGN | Thu, Dec 5, 2002 | 2.70 | 2.74 | 2.50 | 2.50 | 463 | NASDAQ | ALGN | Wed, Dec 4, 2002 | 2.65 | 2.75 | 2.58 | 2.65 | 462 | NASDAQ | ALGN | Tue, Dec 3, 2002 | 3.19 | 3.19 | 2.76 | 2.89 | 461 | NASDAQ | ALGN | Mon, Dec 2, 2002 | 3.49 | 3.51 | 3.15 | 3.16 | 460 | NASDAQ | ALGN | Fri, Nov 29, 2002 | 3.30 | 3.62 | 3.26 | 3.59 | 459 | NASDAQ | ALGN | Wed, Nov 27, 2002 | 3.34 | 3.50 | 3.16 | 3.25 | 458 | NASDAQ | ALGN | Tue, Nov 26, 2002 | 3.49 | 3.50 | 3.20 | 3.32 | 457 | NASDAQ | ALGN | Mon, Nov 25, 2002 | 2.97 | 3.42 | 2.85 | 3.16 | 456 | NASDAQ | ALGN | Fri, Nov 22, 2002 | 2.45 | 3.00 | 2.40 | 2.91 | 455 | NASDAQ | ALGN | Thu, Nov 21, 2002 | 2.12 | 2.46 | 2.12 | 2.46 | 454 | NASDAQ | ALGN | Wed, Nov 20, 2002 | 1.95 | 2.15 | 1.90 | 2.09 | 453 | NASDAQ | ALGN | Tue, Nov 19, 2002 | 1.92 | 2.10 | 1.84 | 1.99 | 452 | NASDAQ | ALGN | Mon, Nov 18, 2002 | 2.06 | 2.22 | 1.83 | 2.02 | 451 | NASDAQ | ALGN | Fri, Nov 15, 2002 | 1.50 | 2.37 | 1.50 | 1.98 | 450 | NASDAQ | ALGN | Thu, Nov 14, 2002 | 1.33 | 1.48 | 1.26 | 1.39 | 449 | NASDAQ | ALGN | Wed, Nov 13, 2002 | 1.38 | 1.48 | 1.26 | 1.30 | 448 | NASDAQ | ALGN | Tue, Nov 12, 2002 | 1.46 | 1.54 | 1.27 | 1.37 | 447 | NASDAQ | ALGN | Mon, Nov 11, 2002 | 1.52 | 1.60 | 1.43 | 1.45 | 446 | NASDAQ | ALGN | Fri, Nov 8, 2002 | 1.61 | 1.70 | 1.53 | 1.57 | 445 | NASDAQ | ALGN | Thu, Nov 7, 2002 | 1.73 | 1.73 | 1.59 | 1.61 | 444 | NASDAQ | ALGN | Wed, Nov 6, 2002 | 1.73 | 1.74 | 1.59 | 1.72 | 443 | NASDAQ | ALGN | Tue, Nov 5, 2002 | 1.75 | 1.79 | 1.66 | 1.70 | 442 | NASDAQ | ALGN | Mon, Nov 4, 2002 | 1.92 | 1.92 | 1.66 | 1.71 | 441 | NASDAQ | ALGN | Fri, Nov 1, 2002 | 2.02 | 2.03 | 1.72 | 1.82 | 440 | NASDAQ | ALGN | Thu, Oct 31, 2002 | 1.75 | 1.85 | 1.70 | 1.77 | 439 | NASDAQ | ALGN | Wed, Oct 30, 2002 | 1.71 | 1.95 | 1.66 | 1.73 | 438 | NASDAQ | ALGN | Tue, Oct 29, 2002 | 1.97 | 1.98 | 1.68 | 1.71 | 437 | NASDAQ | ALGN | Mon, Oct 28, 2002 | 2.04 | 2.04 | 1.85 | 1.89 | 436 | NASDAQ | ALGN | Fri, Oct 25, 2002 | 1.99 | 2.14 | 1.90 | 1.99 | 435 | NASDAQ | ALGN | Thu, Oct 24, 2002 | 2.19 | 2.31 | 1.75 | 1.99 | 434 | NASDAQ | ALGN | Wed, Oct 23, 2002 | 2.26 | 2.56 | 2.15 | 2.47 | 433 | NASDAQ | ALGN | Tue, Oct 22, 2002 | 2.51 | 2.51 | 2.25 | 2.25 | 432 | NASDAQ | ALGN | Mon, Oct 21, 2002 | 2.15 | 2.45 | 2.15 | 2.45 | 431 | NASDAQ | ALGN | Fri, Oct 18, 2002 | 2.14 | 2.36 | 2.10 | 2.11 | 430 | NASDAQ | ALGN | Thu, Oct 17, 2002 | 2.18 | 2.18 | 2.00 | 2.15 | 429 | NASDAQ | ALGN | Wed, Oct 16, 2002 | 2.10 | 2.19 | 2.01 | 2.01 | 428 | NASDAQ | ALGN | Tue, Oct 15, 2002 | 2.24 | 2.39 | 2.01 | 2.11 | 427 | NASDAQ | ALGN | Mon, Oct 14, 2002 | 2.24 | 2.29 | 2.00 | 2.02 | 426 | NASDAQ | ALGN | Fri, Oct 11, 2002 | 1.96 | 2.25 | 1.96 | 2.25 | 425 | NASDAQ | ALGN | Thu, Oct 10, 2002 | 2.07 | 2.16 | 1.85 | 2.07 | 424 | NASDAQ | ALGN | Wed, Oct 9, 2002 | 2.39 | 2.60 | 1.99 | 2.01 | 423 | NASDAQ | ALGN | Tue, Oct 8, 2002 | 2.60 | 2.85 | 2.34 | 2.40 | 422 | NASDAQ | ALGN | Mon, Oct 7, 2002 | 2.60 | 2.90 | 2.41 | 2.43 | 421 | NASDAQ | ALGN | Fri, Oct 4, 2002 | 2.91 | 2.95 | 2.49 | 2.50 | 420 | NASDAQ | ALGN | Thu, Oct 3, 2002 | 2.85 | 3.00 | 2.74 | 2.87 | 419 | NASDAQ | ALGN | Wed, Oct 2, 2002 | 2.83 | 3.08 | 2.83 | 2.91 | 418 | NASDAQ | ALGN | Tue, Oct 1, 2002 | 2.80 | 2.95 | 2.69 | 2.95 | 417 | NASDAQ | ALGN | Mon, Sep 30, 2002 | 2.62 | 2.90 | 2.53 | 2.75 | 416 | NASDAQ | ALGN | Fri, Sep 27, 2002 | 3.08 | 3.08 | 2.52 | 2.60 | 415 | NASDAQ | ALGN | Thu, Sep 26, 2002 | 2.85 | 3.02 | 2.80 | 2.95 | 414 | NASDAQ | ALGN | Wed, Sep 25, 2002 | 2.64 | 3.00 | 2.64 | 2.90 | 413 | NASDAQ | ALGN | Tue, Sep 24, 2002 | 2.77 | 2.87 | 2.59 | 2.72 | 412 | NASDAQ | ALGN | Mon, Sep 23, 2002 | 2.99 | 3.19 | 2.64 | 2.90 | 411 | NASDAQ | ALGN | Fri, Sep 20, 2002 | 3.16 | 3.20 | 2.87 | 3.18 | 410 | NASDAQ | ALGN | Thu, Sep 19, 2002 | 3.25 | 3.25 | 2.87 | 3.08 | 409 | NASDAQ | ALGN | Wed, Sep 18, 2002 | 3.14 | 3.26 | 3.11 | 3.21 | 408 | NASDAQ | ALGN | Tue, Sep 17, 2002 | 3.22 | 3.22 | 3.06 | 3.13 | 407 | NASDAQ | ALGN | Mon, Sep 16, 2002 | 3.29 | 3.29 | 3.10 | 3.12 | 406 | NASDAQ | ALGN | Fri, Sep 13, 2002 | 3.10 | 3.26 | 3.01 | 3.25 | 405 | NASDAQ | ALGN | Thu, Sep 12, 2002 | 3.10 | 3.24 | 2.92 | 3.01 | 404 | NASDAQ | ALGN | Wed, Sep 11, 2002 | 3.28 | 3.28 | 3.00 | 3.12 | 403 | NASDAQ | ALGN | Tue, Sep 10, 2002 | 3.26 | 3.31 | 3.11 | 3.26 | 402 | NASDAQ | ALGN | Mon, Sep 9, 2002 | 3.23 | 3.30 | 3.16 | 3.27 | 401 | NASDAQ | ALGN | Fri, Sep 6, 2002 | 3.27 | 3.27 | 3.18 | 3.25 | 400 | NASDAQ | ALGN | Thu, Sep 5, 2002 | 3.37 | 3.40 | 3.16 | 3.17 | 399 | NASDAQ | ALGN | Wed, Sep 4, 2002 | 3.08 | 3.40 | 3.08 | 3.32 | 398 | NASDAQ | ALGN | Tue, Sep 3, 2002 | 2.95 | 3.20 | 2.95 | 3.15 | 397 | NASDAQ | ALGN | Fri, Aug 30, 2002 | 3.39 | 3.74 | 3.00 | 3.00 | 396 | NASDAQ | ALGN | Thu, Aug 29, 2002 | 2.92 | 3.38 | 2.92 | 3.34 | 395 | NASDAQ | ALGN | Wed, Aug 28, 2002 | 2.79 | 3.14 | 2.79 | 2.81 | 394 | NASDAQ | ALGN | Tue, Aug 27, 2002 | 2.46 | 3.14 | 2.46 | 2.84 | 393 | NASDAQ | ALGN | Mon, Aug 26, 2002 | 2.47 | 2.66 | 2.28 | 2.55 | 392 | NASDAQ | ALGN | Fri, Aug 23, 2002 | 2.42 | 2.49 | 2.40 | 2.41 | 391 | NASDAQ | ALGN | Thu, Aug 22, 2002 | 2.38 | 2.45 | 2.32 | 2.45 | 390 | NASDAQ | ALGN | Wed, Aug 21, 2002 | 2.35 | 2.45 | 2.30 | 2.38 | 389 | NASDAQ | ALGN | Tue, Aug 20, 2002 | 2.43 | 2.44 | 2.30 | 2.34 | 388 | NASDAQ | ALGN | Mon, Aug 19, 2002 | 2.47 | 2.49 | 2.30 | 2.38 | 387 | NASDAQ | ALGN | Fri, Aug 16, 2002 | 2.39 | 2.45 | 2.25 | 2.44 | 386 | NASDAQ | ALGN | Thu, Aug 15, 2002 | 2.40 | 2.41 | 2.31 | 2.35 | 385 | NASDAQ | ALGN | Wed, Aug 14, 2002 | 2.44 | 2.45 | 2.31 | 2.43 | 384 | NASDAQ | ALGN | Tue, Aug 13, 2002 | 2.42 | 2.43 | 2.37 | 2.37 | 383 | NASDAQ | ALGN | Mon, Aug 12, 2002 | 2.43 | 2.45 | 2.35 | 2.45 | 382 | NASDAQ | ALGN | Fri, Aug 9, 2002 | 2.42 | 2.45 | 2.35 | 2.35 | 381 | NASDAQ | ALGN | Thu, Aug 8, 2002 | 2.40 | 2.44 | 2.35 | 2.44 | 380 | NASDAQ | ALGN | Wed, Aug 7, 2002 | 2.41 | 2.52 | 2.35 | 2.52 | 379 | NASDAQ | ALGN | Tue, Aug 6, 2002 | 2.43 | 2.48 | 2.22 | 2.35 | 378 | NASDAQ | ALGN | Mon, Aug 5, 2002 | 2.22 | 2.50 | 2.22 | 2.35 | 377 | NASDAQ | ALGN | Fri, Aug 2, 2002 | 2.50 | 2.50 | 2.18 | 2.18 | 376 | NASDAQ | ALGN | Thu, Aug 1, 2002 | 2.35 | 2.53 | 2.28 | 2.49 | 375 | NASDAQ | ALGN | Wed, Jul 31, 2002 | 2.51 | 2.51 | 2.31 | 2.35 | 374 | NASDAQ | ALGN | Tue, Jul 30, 2002 | 2.37 | 2.50 | 2.27 | 2.50 | 373 | NASDAQ | ALGN | Mon, Jul 29, 2002 | 2.00 | 2.43 | 2.00 | 2.30 | 372 | NASDAQ | ALGN | Fri, Jul 26, 2002 | 2.19 | 2.24 | 2.04 | 2.04 | 371 | NASDAQ | ALGN | Thu, Jul 25, 2002 | 2.15 | 2.43 | 1.90 | 1.99 | 370 | NASDAQ | ALGN | Wed, Jul 24, 2002 | 2.26 | 2.50 | 2.14 | 2.15 | 369 | NASDAQ | ALGN | Tue, Jul 23, 2002 | 2.45 | 2.50 | 2.30 | 2.33 | 368 | NASDAQ | ALGN | Mon, Jul 22, 2002 | 2.34 | 2.55 | 2.05 | 2.49 | 367 | NASDAQ | ALGN | Fri, Jul 19, 2002 | 2.46 | 2.49 | 2.26 | 2.27 | 366 | NASDAQ | ALGN | Thu, Jul 18, 2002 | 2.44 | 2.59 | 2.37 | 2.45 | 365 | NASDAQ | ALGN | Wed, Jul 17, 2002 | 2.35 | 2.40 | 2.17 | 2.28 | 364 | NASDAQ | ALGN | Tue, Jul 16, 2002 | 2.24 | 2.39 | 2.13 | 2.20 | 363 | NASDAQ | ALGN | Mon, Jul 15, 2002 | 2.24 | 2.50 | 2.03 | 2.16 | 362 | NASDAQ | ALGN | Fri, Jul 12, 2002 | 1.85 | 2.20 | 1.75 | 2.02 | 361 | NASDAQ | ALGN | Thu, Jul 11, 2002 | 1.86 | 1.95 | 1.54 | 1.70 | 360 | NASDAQ | ALGN | Wed, Jul 10, 2002 | 2.51 | 2.52 | 1.53 | 1.74 | 359 | NASDAQ | ALGN | Tue, Jul 9, 2002 | 2.91 | 2.93 | 2.68 | 2.82 | 358 | NASDAQ | ALGN | Mon, Jul 8, 2002 | 3.00 | 3.14 | 2.79 | 2.90 | 357 | NASDAQ | ALGN | Fri, Jul 5, 2002 | 3.10 | 3.11 | 2.91 | 3.05 | 356 | NASDAQ | ALGN | Wed, Jul 3, 2002 | 3.26 | 3.35 | 3.10 | 3.10 | 355 | NASDAQ | ALGN | Tue, Jul 2, 2002 | 3.25 | 3.50 | 3.25 | 3.40 | 354 | NASDAQ | ALGN | Mon, Jul 1, 2002 | 3.92 | 3.92 | 2.99 | 3.50 | 353 | NASDAQ | ALGN | Fri, Jun 28, 2002 | 3.96 | 4.15 | 3.75 | 3.92 | 352 | NASDAQ | ALGN | Thu, Jun 27, 2002 | 3.54 | 3.83 | 3.50 | 3.77 | 351 | NASDAQ | ALGN | Wed, Jun 26, 2002 | 3.33 | 3.60 | 3.09 | 3.60 | 350 | NASDAQ | ALGN | Tue, Jun 25, 2002 | 3.91 | 4.00 | 3.25 | 3.40 | 349 | NASDAQ | ALGN | Mon, Jun 24, 2002 | 3.71 | 4.00 | 3.45 | 3.97 | 348 | NASDAQ | ALGN | Fri, Jun 21, 2002 | 3.85 | 3.90 | 3.68 | 3.78 | 347 | NASDAQ | ALGN | Thu, Jun 20, 2002 | 3.81 | 4.00 | 3.81 | 3.90 | 346 | NASDAQ | ALGN | Wed, Jun 19, 2002 | 3.81 | 4.00 | 3.68 | 3.80 | 345 | NASDAQ | ALGN | Tue, Jun 18, 2002 | 3.70 | 4.00 | 3.64 | 4.00 | 344 | NASDAQ | ALGN | Mon, Jun 17, 2002 | 3.81 | 4.02 | 3.56 | 4.00 | 343 | NASDAQ | ALGN | Fri, Jun 14, 2002 | 3.88 | 3.99 | 3.53 | 3.58 | 342 | NASDAQ | ALGN | Thu, Jun 13, 2002 | 3.87 | 4.00 | 3.85 | 3.93 | 341 | NASDAQ | ALGN | Wed, Jun 12, 2002 | 3.35 | 3.85 | 3.35 | 3.85 | 340 | NASDAQ | ALGN | Tue, Jun 11, 2002 | 3.94 | 4.05 | 3.27 | 3.32 | 339 | NASDAQ | ALGN | Mon, Jun 10, 2002 | 3.95 | 4.06 | 3.80 | 4.05 | 338 | NASDAQ | ALGN | Fri, Jun 7, 2002 | 3.99 | 4.05 | 3.85 | 4.00 | 337 | NASDAQ | ALGN | Thu, Jun 6, 2002 | 3.99 | 4.05 | 3.87 | 4.00 | 336 | NASDAQ | ALGN | Wed, Jun 5, 2002 | 4.00 | 4.05 | 3.90 | 3.98 | 335 | NASDAQ | ALGN | Tue, Jun 4, 2002 | 3.88 | 4.05 | 3.87 | 4.05 | 334 | NASDAQ | ALGN | Mon, Jun 3, 2002 | 3.86 | 4.06 | 3.85 | 4.00 | 333 | NASDAQ | ALGN | Fri, May 31, 2002 | 4.00 | 4.04 | 3.85 | 3.85 | 332 | NASDAQ | ALGN | Thu, May 30, 2002 | 4.00 | 4.03 | 3.81 | 4.00 | 331 | NASDAQ | ALGN | Wed, May 29, 2002 | 3.99 | 4.02 | 3.76 | 4.00 | 330 | NASDAQ | ALGN | Tue, May 28, 2002 | 3.77 | 4.00 | 3.62 | 3.92 | 329 | NASDAQ | ALGN | Fri, May 24, 2002 | 3.90 | 3.90 | 3.69 | 3.77 | 328 | NASDAQ | ALGN | Thu, May 23, 2002 | 3.77 | 3.91 | 3.51 | 3.91 | 327 | NASDAQ | ALGN | Wed, May 22, 2002 | 3.86 | 4.00 | 3.75 | 3.77 | 326 | NASDAQ | ALGN | Tue, May 21, 2002 | 3.96 | 4.05 | 3.85 | 4.00 | 325 | NASDAQ | ALGN | Mon, May 20, 2002 | 4.02 | 4.05 | 3.88 | 3.98 | 324 | NASDAQ | ALGN | Fri, May 17, 2002 | 4.04 | 4.06 | 3.97 | 4.05 | 323 | NASDAQ | ALGN | Thu, May 16, 2002 | 3.95 | 4.04 | 3.92 | 4.04 | 322 | NASDAQ | ALGN | Wed, May 15, 2002 | 3.82 | 4.04 | 3.80 | 4.00 | 321 | NASDAQ | ALGN | Tue, May 14, 2002 | 3.95 | 4.00 | 3.83 | 3.91 | 320 | NASDAQ | ALGN | Mon, May 13, 2002 | 4.05 | 4.05 | 3.81 | 3.83 | 319 | NASDAQ | ALGN | Fri, May 10, 2002 | 3.98 | 4.08 | 3.93 | 4.05 | 318 | NASDAQ | ALGN | Thu, May 9, 2002 | 4.05 | 4.05 | 3.97 | 4.00 | 317 | NASDAQ | ALGN | Wed, May 8, 2002 | 3.95 | 4.05 | 3.95 | 4.01 | 316 | NASDAQ | ALGN | Tue, May 7, 2002 | 4.04 | 4.05 | 3.95 | 3.96 | 315 | NASDAQ | ALGN | Mon, May 6, 2002 | 4.00 | 4.05 | 3.94 | 4.02 | 314 | NASDAQ | ALGN | Fri, May 3, 2002 | 4.00 | 4.05 | 3.95 | 3.99 | 313 | NASDAQ | ALGN | Thu, May 2, 2002 | 3.98 | 4.07 | 3.78 | 4.00 | 312 | NASDAQ | ALGN | Wed, May 1, 2002 | 3.83 | 3.98 | 3.72 | 3.89 | 311 | NASDAQ | ALGN | Tue, Apr 30, 2002 | 3.85 | 4.01 | 3.70 | 3.85 | 310 | NASDAQ | ALGN | Mon, Apr 29, 2002 | 3.51 | 3.75 | 3.51 | 3.70 | 309 | NASDAQ | ALGN | Fri, Apr 26, 2002 | 4.10 | 4.15 | 3.33 | 3.40 | 308 | NASDAQ | ALGN | Thu, Apr 25, 2002 | 4.52 | 4.52 | 3.96 | 4.17 | 307 | NASDAQ | ALGN | Wed, Apr 24, 2002 | 4.61 | 4.62 | 4.36 | 4.46 | 306 | NASDAQ | ALGN | Tue, Apr 23, 2002 | 4.58 | 4.58 | 4.38 | 4.43 | 305 | NASDAQ | ALGN | Mon, Apr 22, 2002 | 4.53 | 4.55 | 4.42 | 4.51 | 304 | NASDAQ | ALGN | Fri, Apr 19, 2002 | 4.47 | 4.55 | 4.45 | 4.50 | 303 | NASDAQ | ALGN | Thu, Apr 18, 2002 | 4.35 | 4.47 | 4.30 | 4.42 | 302 | NASDAQ | ALGN | Wed, Apr 17, 2002 | 4.38 | 4.45 | 4.25 | 4.29 | 301 | NASDAQ | ALGN | Tue, Apr 16, 2002 | 4.40 | 4.45 | 4.25 | 4.43 | 300 | NASDAQ | ALGN | Mon, Apr 15, 2002 | 4.31 | 4.43 | 4.30 | 4.40 | 299 | NASDAQ | ALGN | Fri, Apr 12, 2002 | 4.50 | 4.55 | 4.27 | 4.35 | 298 | NASDAQ | ALGN | Thu, Apr 11, 2002 | 4.55 | 4.55 | 4.45 | 4.49 | 297 | NASDAQ | ALGN | Wed, Apr 10, 2002 | 4.48 | 4.70 | 4.40 | 4.54 | 296 | NASDAQ | ALGN | Tue, Apr 9, 2002 | 4.47 | 4.65 | 4.42 | 4.57 | 295 | NASDAQ | ALGN | Mon, Apr 8, 2002 | 4.89 | 4.90 | 4.45 | 4.50 | 294 | NASDAQ | ALGN | Fri, Apr 5, 2002 | 4.95 | 5.00 | 4.78 | 4.78 | 293 | NASDAQ | ALGN | Thu, Apr 4, 2002 | 4.96 | 5.08 | 4.86 | 5.00 | 292 | NASDAQ | ALGN | Wed, Apr 3, 2002 | 5.34 | 5.35 | 4.90 | 5.00 | 291 | NASDAQ | ALGN | Tue, Apr 2, 2002 | 5.35 | 5.35 | 5.15 | 5.20 | 290 | NASDAQ | ALGN | Mon, Apr 1, 2002 | 5.34 | 5.52 | 5.00 | 5.48 | 289 | NASDAQ | ALGN | Thu, Mar 28, 2002 | 5.00 | 5.40 | 4.99 | 5.30 | 288 | NASDAQ | ALGN | Wed, Mar 27, 2002 | 5.04 | 5.25 | 4.93 | 4.95 | 287 | NASDAQ | ALGN | Tue, Mar 26, 2002 | 4.90 | 5.19 | 4.65 | 5.03 | 286 | NASDAQ | ALGN | Mon, Mar 25, 2002 | 4.40 | 5.00 | 4.25 | 4.85 | 285 | NASDAQ | ALGN | Fri, Mar 22, 2002 | 4.27 | 4.51 | 4.25 | 4.40 | 284 | NASDAQ | ALGN | Thu, Mar 21, 2002 | 4.48 | 4.60 | 4.20 | 4.27 | 283 | NASDAQ | ALGN | Wed, Mar 20, 2002 | 4.50 | 4.84 | 4.48 | 4.51 | 282 | NASDAQ | ALGN | Tue, Mar 19, 2002 | 4.85 | 4.89 | 4.39 | 4.50 | 281 | NASDAQ | ALGN | Mon, Mar 18, 2002 | 4.75 | 4.95 | 4.55 | 4.95 | 280 | NASDAQ | ALGN | Fri, Mar 15, 2002 | 4.71 | 4.80 | 4.40 | 4.70 | 279 | NASDAQ | ALGN | Thu, Mar 14, 2002 | 4.56 | 4.80 | 4.45 | 4.75 | 278 | NASDAQ | ALGN | Wed, Mar 13, 2002 | 4.65 | 4.70 | 4.60 | 4.64 | 277 | NASDAQ | ALGN | Tue, Mar 12, 2002 | 4.65 | 4.85 | 4.61 | 4.62 | 276 | NASDAQ | ALGN | Mon, Mar 11, 2002 | 4.59 | 4.80 | 4.25 | 4.78 | 275 | NASDAQ | ALGN | Fri, Mar 8, 2002 | 4.30 | 4.50 | 4.17 | 4.50 | 274 | NASDAQ | ALGN | Thu, Mar 7, 2002 | 4.06 | 4.37 | 4.03 | 4.09 | 273 | NASDAQ | ALGN | Wed, Mar 6, 2002 | 4.17 | 4.30 | 4.05 | 4.05 | 272 | NASDAQ | ALGN | Tue, Mar 5, 2002 | 4.30 | 4.40 | 4.10 | 4.15 | 271 | NASDAQ | ALGN | Mon, Mar 4, 2002 | 4.26 | 4.55 | 4.10 | 4.40 | 270 | NASDAQ | ALGN | Fri, Mar 1, 2002 | 4.25 | 4.40 | 4.20 | 4.34 | 269 | NASDAQ | ALGN | Thu, Feb 28, 2002 | 4.34 | 4.35 | 4.17 | 4.25 | 268 | NASDAQ | ALGN | Wed, Feb 27, 2002 | 4.20 | 4.34 | 4.11 | 4.33 | 267 | NASDAQ | ALGN | Tue, Feb 26, 2002 | 4.21 | 4.25 | 4.10 | 4.17 | 266 | NASDAQ | ALGN | Mon, Feb 25, 2002 | 4.31 | 4.49 | 4.15 | 4.25 | 265 | NASDAQ | ALGN | Fri, Feb 22, 2002 | 4.45 | 4.58 | 4.27 | 4.40 | 264 | NASDAQ | ALGN | Thu, Feb 21, 2002 | 4.41 | 4.46 | 4.30 | 4.35 | 263 | NASDAQ | ALGN | Wed, Feb 20, 2002 | 4.67 | 4.67 | 4.31 | 4.45 | 262 | NASDAQ | ALGN | Tue, Feb 19, 2002 | 4.80 | 4.80 | 4.47 | 4.63 | 261 | NASDAQ | ALGN | Fri, Feb 15, 2002 | 4.36 | 4.85 | 4.30 | 4.80 | 260 | NASDAQ | ALGN | Thu, Feb 14, 2002 | 4.79 | 4.79 | 4.27 | 4.51 | 259 | NASDAQ | ALGN | Wed, Feb 13, 2002 | 4.77 | 4.80 | 4.10 | 4.78 | 258 | NASDAQ | ALGN | Tue, Feb 12, 2002 | 4.58 | 4.91 | 4.55 | 4.90 | 257 | NASDAQ | ALGN | Mon, Feb 11, 2002 | 4.42 | 4.70 | 4.40 | 4.57 | 256 | NASDAQ | ALGN | Fri, Feb 8, 2002 | 4.68 | 4.71 | 4.10 | 4.36 | 255 | NASDAQ | ALGN | Thu, Feb 7, 2002 | 4.60 | 4.88 | 4.60 | 4.68 | 254 | NASDAQ | ALGN | Wed, Feb 6, 2002 | 5.03 | 5.05 | 4.80 | 4.87 | 253 | NASDAQ | ALGN | Tue, Feb 5, 2002 | 5.33 | 5.33 | 4.90 | 4.90 | 252 | NASDAQ | ALGN | Mon, Feb 4, 2002 | 5.54 | 5.58 | 4.93 | 5.08 | 251 | NASDAQ | ALGN | Fri, Feb 1, 2002 | 4.89 | 5.19 | 4.84 | 4.95 | 250 | NASDAQ | ALGN | Thu, Jan 31, 2002 | 4.51 | 4.97 | 4.51 | 4.88 | 249 | NASDAQ | ALGN | Wed, Jan 30, 2002 | 4.02 | 4.55 | 4.01 | 4.55 | 248 | NASDAQ | ALGN | Tue, Jan 29, 2002 | 4.33 | 4.38 | 4.02 | 4.15 | 247 | NASDAQ | ALGN | Mon, Jan 28, 2002 | 4.41 | 4.64 | 4.22 | 4.30 | 246 | NASDAQ | ALGN | Fri, Jan 25, 2002 | 4.32 | 4.75 | 4.00 | 4.45 | 245 | NASDAQ | ALGN | Thu, Jan 24, 2002 | 4.57 | 4.63 | 4.23 | 4.30 | 244 | NASDAQ | ALGN | Wed, Jan 23, 2002 | 4.83 | 5.01 | 4.25 | 4.42 | 243 | NASDAQ | ALGN | Tue, Jan 22, 2002 | 5.30 | 5.55 | 4.85 | 4.89 | 242 | NASDAQ | ALGN | Fri, Jan 18, 2002 | 5.75 | 5.76 | 5.25 | 5.30 | 241 | NASDAQ | ALGN | Thu, Jan 17, 2002 | 5.91 | 6.01 | 5.49 | 5.70 | 240 | NASDAQ | ALGN | Wed, Jan 16, 2002 | 5.50 | 5.90 | 5.25 | 5.88 | 239 | NASDAQ | ALGN | Tue, Jan 15, 2002 | 5.87 | 5.88 | 5.40 | 5.50 | 238 | NASDAQ | ALGN | Mon, Jan 14, 2002 | 5.38 | 5.88 | 5.35 | 5.52 | 237 | NASDAQ | ALGN | Fri, Jan 11, 2002 | 5.30 | 5.56 | 5.10 | 5.28 | 236 | NASDAQ | ALGN | Thu, Jan 10, 2002 | 6.23 | 6.23 | 4.88 | 4.88 | 235 | NASDAQ | ALGN | Wed, Jan 9, 2002 | 5.50 | 6.25 | 5.20 | 5.98 | 234 | NASDAQ | ALGN | Tue, Jan 8, 2002 | 5.49 | 5.60 | 5.05 | 5.25 | 233 | NASDAQ | ALGN | Mon, Jan 7, 2002 | 4.77 | 5.25 | 4.65 | 5.01 | 232 | NASDAQ | ALGN | Fri, Jan 4, 2002 | 4.49 | 4.65 | 4.19 | 4.50 | 231 | NASDAQ | ALGN | Thu, Jan 3, 2002 | 4.50 | 4.60 | 4.15 | 4.48 | 230 | NASDAQ | ALGN | Wed, Jan 2, 2002 | 4.50 | 4.60 | 4.16 | 4.30 | 229 | NASDAQ | ALGN | Mon, Dec 31, 2001 | 4.63 | 4.69 | 4.40 | 4.50 | 228 | NASDAQ | ALGN | Fri, Dec 28, 2001 | 4.76 | 4.76 | 4.45 | 4.60 | 227 | NASDAQ | ALGN | Thu, Dec 27, 2001 | 4.53 | 4.84 | 4.50 | 4.72 | 226 | NASDAQ | ALGN | Wed, Dec 26, 2001 | 4.90 | 4.90 | 4.51 | 4.80 | 225 | NASDAQ | ALGN | Mon, Dec 24, 2001 | 4.70 | 5.05 | 4.46 | 4.75 | 224 | NASDAQ | ALGN | Fri, Dec 21, 2001 | 4.30 | 5.16 | 4.29 | 5.00 | 223 | NASDAQ | ALGN | Thu, Dec 20, 2001 | 3.86 | 4.50 | 3.81 | 4.50 | 222 | NASDAQ | ALGN | Wed, Dec 19, 2001 | 4.02 | 4.14 | 3.85 | 3.85 | 221 | NASDAQ | ALGN | Tue, Dec 18, 2001 | 4.00 | 4.20 | 3.86 | 4.05 | 220 | NASDAQ | ALGN | Mon, Dec 17, 2001 | 3.85 | 4.09 | 3.60 | 4.05 | 219 | NASDAQ | ALGN | Fri, Dec 14, 2001 | 4.00 | 4.04 | 3.75 | 3.86 | 218 | NASDAQ | ALGN | Thu, Dec 13, 2001 | 3.91 | 4.15 | 3.77 | 3.89 | 217 | NASDAQ | ALGN | Wed, Dec 12, 2001 | 3.90 | 4.13 | 3.80 | 3.90 | 216 | NASDAQ | ALGN | Tue, Dec 11, 2001 | 4.08 | 4.08 | 3.80 | 3.95 | 215 | NASDAQ | ALGN | Mon, Dec 10, 2001 | 3.98 | 4.04 | 3.85 | 3.94 | 214 | NASDAQ | ALGN | Fri, Dec 7, 2001 | 4.00 | 4.20 | 3.95 | 4.05 | 213 | NASDAQ | ALGN | Thu, Dec 6, 2001 | 4.27 | 4.48 | 3.96 | 4.18 | 212 | NASDAQ | ALGN | Wed, Dec 5, 2001 | 3.99 | 4.50 | 3.95 | 4.35 | 211 | NASDAQ | ALGN | Tue, Dec 4, 2001 | 3.91 | 4.15 | 3.84 | 3.97 | 210 | NASDAQ | ALGN | Mon, Dec 3, 2001 | 4.00 | 4.26 | 3.85 | 3.91 | 209 | NASDAQ | ALGN | Fri, Nov 30, 2001 | 4.30 | 4.41 | 3.97 | 4.00 | 208 | NASDAQ | ALGN | Thu, Nov 29, 2001 | 4.34 | 4.41 | 4.25 | 4.25 | 207 | NASDAQ | ALGN | Wed, Nov 28, 2001 | 4.25 | 4.43 | 4.11 | 4.33 | 206 | NASDAQ | ALGN | Tue, Nov 27, 2001 | 4.18 | 4.30 | 3.87 | 4.17 | 205 | NASDAQ | ALGN | Mon, Nov 26, 2001 | 4.45 | 4.47 | 3.70 | 4.00 | 204 | NASDAQ | ALGN | Fri, Nov 23, 2001 | 4.20 | 4.29 | 4.15 | 4.25 | 203 | NASDAQ | ALGN | Wed, Nov 21, 2001 | 4.36 | 4.55 | 4.25 | 4.37 | 202 | NASDAQ | ALGN | Tue, Nov 20, 2001 | 4.62 | 4.64 | 4.37 | 4.55 | 201 | NASDAQ | ALGN | Mon, Nov 19, 2001 | 4.66 | 4.69 | 4.35 | 4.58 | 200 | NASDAQ | ALGN | Fri, Nov 16, 2001 | 4.19 | 4.71 | 4.05 | 4.65 | 199 | NASDAQ | ALGN | Thu, Nov 15, 2001 | 3.50 | 4.21 | 3.42 | 4.01 | 198 | NASDAQ | ALGN | Wed, Nov 14, 2001 | 4.24 | 4.24 | 2.95 | 3.07 | 197 | NASDAQ | ALGN | Tue, Nov 13, 2001 | 4.98 | 4.98 | 3.88 | 3.89 | 196 | NASDAQ | ALGN | Mon, Nov 12, 2001 | 4.92 | 5.00 | 4.60 | 4.75 | 195 | NASDAQ | ALGN | Fri, Nov 9, 2001 | 4.99 | 5.10 | 4.91 | 4.95 | 194 | NASDAQ | ALGN | Thu, Nov 8, 2001 | 5.01 | 5.05 | 4.89 | 5.05 | 193 | NASDAQ | ALGN | Wed, Nov 7, 2001 | 4.89 | 5.09 | 4.56 | 4.91 | 192 | NASDAQ | ALGN | Tue, Nov 6, 2001 | 5.16 | 5.50 | 5.16 | 5.50 | 191 | NASDAQ | ALGN | Mon, Nov 5, 2001 | 5.26 | 5.50 | 5.01 | 5.33 | 190 | NASDAQ | ALGN | Fri, Nov 2, 2001 | 4.41 | 5.30 | 4.41 | 4.99 | 189 | NASDAQ | ALGN | Thu, Nov 1, 2001 | 4.35 | 4.60 | 4.20 | 4.59 | 188 | NASDAQ | ALGN | Wed, Oct 31, 2001 | 4.43 | 4.70 | 4.36 | 4.36 | 187 | NASDAQ | ALGN | Tue, Oct 30, 2001 | 4.16 | 4.44 | 4.15 | 4.18 | 186 | NASDAQ | ALGN | Mon, Oct 29, 2001 | 4.33 | 4.35 | 4.16 | 4.21 | 185 | NASDAQ | ALGN | Fri, Oct 26, 2001 | 4.20 | 4.49 | 4.00 | 4.25 | 184 | NASDAQ | ALGN | Thu, Oct 25, 2001 | 4.60 | 4.62 | 4.04 | 4.06 | 183 | NASDAQ | ALGN | Wed, Oct 24, 2001 | 4.79 | 4.90 | 4.59 | 4.65 | 182 | NASDAQ | ALGN | Tue, Oct 23, 2001 | 5.49 | 5.65 | 4.65 | 4.85 | 181 | NASDAQ | ALGN | Mon, Oct 22, 2001 | 4.79 | 5.79 | 4.79 | 5.59 | 180 | NASDAQ | ALGN | Fri, Oct 19, 2001 | 3.91 | 4.78 | 3.91 | 4.55 | 179 | NASDAQ | ALGN | Thu, Oct 18, 2001 | 3.85 | 4.25 | 3.74 | 3.93 | 178 | NASDAQ | ALGN | Wed, Oct 17, 2001 | 4.20 | 4.45 | 3.80 | 3.97 | 177 | NASDAQ | ALGN | Tue, Oct 16, 2001 | 4.09 | 4.20 | 4.00 | 4.18 | 176 | NASDAQ | ALGN | Mon, Oct 15, 2001 | 4.16 | 4.16 | 3.85 | 3.95 | 175 | NASDAQ | ALGN | Fri, Oct 12, 2001 | 3.87 | 4.15 | 3.75 | 4.05 | 174 | NASDAQ | ALGN | Thu, Oct 11, 2001 | 3.22 | 4.05 | 3.21 | 3.87 | 173 | NASDAQ | ALGN | Wed, Oct 10, 2001 | 3.40 | 3.51 | 3.05 | 3.20 | 172 | NASDAQ | ALGN | Tue, Oct 9, 2001 | 3.05 | 3.09 | 2.93 | 2.99 | 171 | NASDAQ | ALGN | Mon, Oct 8, 2001 | 3.49 | 3.50 | 2.98 | 3.03 | 170 | NASDAQ | ALGN | Fri, Oct 5, 2001 | 3.33 | 3.34 | 3.00 | 3.01 | 169 | NASDAQ | ALGN | Thu, Oct 4, 2001 | 3.41 | 3.48 | 3.17 | 3.20 | 168 | NASDAQ | ALGN | Wed, Oct 3, 2001 | 3.54 | 3.54 | 3.15 | 3.39 | 167 | NASDAQ | ALGN | Tue, Oct 2, 2001 | 3.26 | 3.80 | 3.25 | 3.35 | 166 | NASDAQ | ALGN | Mon, Oct 1, 2001 | 2.43 | 3.13 | 2.14 | 2.87 | 165 | NASDAQ | ALGN | Fri, Sep 28, 2001 | 2.66 | 2.80 | 2.18 | 2.18 | 164 | NASDAQ | ALGN | Thu, Sep 27, 2001 | 2.68 | 2.69 | 2.45 | 2.53 | 163 | NASDAQ | ALGN | Wed, Sep 26, 2001 | 3.00 | 3.48 | 2.40 | 2.70 | 162 | NASDAQ | ALGN | Tue, Sep 25, 2001 | 3.10 | 3.54 | 2.94 | 3.07 | 161 | NASDAQ | ALGN | Mon, Sep 24, 2001 | 4.15 | 4.15 | 3.25 | 3.40 | 160 | NASDAQ | ALGN | Fri, Sep 21, 2001 | 3.51 | 3.92 | 3.45 | 3.70 | 159 | NASDAQ | ALGN | Thu, Sep 20, 2001 | 4.00 | 4.50 | 3.75 | 3.85 | 158 | NASDAQ | ALGN | Wed, Sep 19, 2001 | 4.86 | 4.90 | 3.30 | 4.48 | 157 | NASDAQ | ALGN | Tue, Sep 18, 2001 | 5.68 | 5.74 | 4.45 | 5.05 | 156 | NASDAQ | ALGN | Mon, Sep 17, 2001 | 3.99 | 5.82 | 3.99 | 5.55 | 155 | NASDAQ | ALGN | Mon, Sep 10, 2001 | 6.70 | 6.70 | 6.45 | 6.50 | 154 | NASDAQ | ALGN | Fri, Sep 7, 2001 | 6.60 | 6.70 | 6.48 | 6.65 | 153 | NASDAQ | ALGN | Thu, Sep 6, 2001 | 7.00 | 7.00 | 6.61 | 6.63 | 152 | NASDAQ | ALGN | Wed, Sep 5, 2001 | 6.80 | 7.05 | 6.79 | 7.00 | 151 | NASDAQ | ALGN | Tue, Sep 4, 2001 | 6.73 | 7.25 | 6.52 | 6.87 | 150 | NASDAQ | ALGN | Fri, Aug 31, 2001 | 6.59 | 6.74 | 6.55 | 6.60 | 149 | NASDAQ | ALGN | Thu, Aug 30, 2001 | 6.69 | 6.75 | 6.48 | 6.60 | 148 | NASDAQ | ALGN | Wed, Aug 29, 2001 | 6.89 | 6.89 | 6.62 | 6.68 | 147 | NASDAQ | ALGN | Tue, Aug 28, 2001 | 6.90 | 6.96 | 6.80 | 6.81 | 146 | NASDAQ | ALGN | Mon, Aug 27, 2001 | 6.90 | 7.00 | 6.90 | 7.00 | 145 | NASDAQ | ALGN | Fri, Aug 24, 2001 | 6.90 | 7.07 | 6.80 | 6.96 | 144 | NASDAQ | ALGN | Thu, Aug 23, 2001 | 7.05 | 7.14 | 6.84 | 6.91 | 143 | NASDAQ | ALGN | Wed, Aug 22, 2001 | 7.14 | 7.20 | 7.00 | 7.10 | 142 | NASDAQ | ALGN | Tue, Aug 21, 2001 | 7.20 | 7.20 | 6.95 | 6.95 | 141 | NASDAQ | ALGN | Mon, Aug 20, 2001 | 7.45 | 7.45 | 7.00 | 7.05 | 140 | NASDAQ | ALGN | Fri, Aug 17, 2001 | 7.48 | 7.67 | 7.36 | 7.37 | 139 | NASDAQ | ALGN | Thu, Aug 16, 2001 | 7.70 | 7.71 | 7.39 | 7.50 | 138 | NASDAQ | ALGN | Wed, Aug 15, 2001 | 7.90 | 8.09 | 7.60 | 7.70 | 137 | NASDAQ | ALGN | Tue, Aug 14, 2001 | 7.86 | 8.25 | 7.61 | 7.89 | 136 | NASDAQ | ALGN | Mon, Aug 13, 2001 | 7.90 | 7.90 | 7.55 | 7.65 | 135 | NASDAQ | ALGN | Fri, Aug 10, 2001 | 7.51 | 7.86 | 7.50 | 7.55 | 134 | NASDAQ | ALGN | Thu, Aug 9, 2001 | 7.60 | 7.85 | 7.45 | 7.56 | 133 | NASDAQ | ALGN | Wed, Aug 8, 2001 | 7.80 | 7.80 | 7.45 | 7.45 | 132 | NASDAQ | ALGN | Tue, Aug 7, 2001 | 7.69 | 7.89 | 7.60 | 7.80 | 131 | NASDAQ | ALGN | Mon, Aug 6, 2001 | 7.73 | 7.73 | 7.40 | 7.69 | 130 | NASDAQ | ALGN | Fri, Aug 3, 2001 | 7.45 | 7.73 | 7.45 | 7.50 | 129 | NASDAQ | ALGN | Thu, Aug 2, 2001 | 7.60 | 7.60 | 7.41 | 7.45 | 128 | NASDAQ | ALGN | Wed, Aug 1, 2001 | 7.50 | 7.60 | 7.30 | 7.50 | 127 | NASDAQ | ALGN | Tue, Jul 31, 2001 | 7.09 | 7.65 | 7.09 | 7.46 | 126 | NASDAQ | ALGN | Mon, Jul 30, 2001 | 7.75 | 7.75 | 6.75 | 7.34 | 125 | NASDAQ | ALGN | Fri, Jul 27, 2001 | 7.61 | 7.73 | 7.50 | 7.60 | 124 | NASDAQ | ALGN | Thu, Jul 26, 2001 | 7.14 | 7.20 | 7.00 | 7.19 | 123 | NASDAQ | ALGN | Wed, Jul 25, 2001 | 7.55 | 7.55 | 6.50 | 7.02 | 122 | NASDAQ | ALGN | Tue, Jul 24, 2001 | 7.50 | 7.54 | 7.39 | 7.39 | 121 | NASDAQ | ALGN | Mon, Jul 23, 2001 | 7.40 | 7.57 | 7.39 | 7.40 | 120 | NASDAQ | ALGN | Fri, Jul 20, 2001 | 7.57 | 7.68 | 7.32 | 7.38 | 119 | NASDAQ | ALGN | Thu, Jul 19, 2001 | 7.75 | 7.75 | 7.58 | 7.59 | 118 | NASDAQ | ALGN | Wed, Jul 18, 2001 | 7.59 | 7.75 | 7.40 | 7.65 | 117 | NASDAQ | ALGN | Tue, Jul 17, 2001 | 7.75 | 7.80 | 7.40 | 7.67 | 116 | NASDAQ | ALGN | Mon, Jul 16, 2001 | 7.51 | 7.75 | 7.40 | 7.60 | 115 | NASDAQ | ALGN | Fri, Jul 13, 2001 | 7.62 | 7.74 | 7.50 | 7.50 | 114 | NASDAQ | ALGN | Thu, Jul 12, 2001 | 8.00 | 8.00 | 7.60 | 7.62 | 113 | NASDAQ | ALGN | Wed, Jul 11, 2001 | 7.91 | 7.91 | 7.75 | 7.80 | 112 | NASDAQ | ALGN | Tue, Jul 10, 2001 | 7.92 | 7.95 | 7.75 | 7.90 | 111 | NASDAQ | ALGN | Mon, Jul 9, 2001 | 7.88 | 7.98 | 7.70 | 7.78 | 110 | NASDAQ | ALGN | Fri, Jul 6, 2001 | 8.00 | 8.01 | 7.85 | 7.89 | 109 | NASDAQ | ALGN | Thu, Jul 5, 2001 | 8.09 | 8.10 | 7.95 | 7.95 | 108 | NASDAQ | ALGN | Tue, Jul 3, 2001 | 8.00 | 8.10 | 7.93 | 7.99 | 107 | NASDAQ | ALGN | Mon, Jul 2, 2001 | 8.02 | 8.10 | 7.85 | 8.00 | 106 | NASDAQ | ALGN | Fri, Jun 29, 2001 | 7.90 | 8.26 | 7.84 | 7.84 | 105 | NASDAQ | ALGN | Thu, Jun 28, 2001 | 7.99 | 8.31 | 7.85 | 8.00 | 104 | NASDAQ | ALGN | Wed, Jun 27, 2001 | 8.90 | 8.90 | 7.85 | 7.96 | 103 | NASDAQ | ALGN | Tue, Jun 26, 2001 | 7.86 | 8.64 | 7.80 | 8.49 | 102 | NASDAQ | ALGN | Mon, Jun 25, 2001 | 7.89 | 7.90 | 7.65 | 7.70 | 101 | NASDAQ | ALGN | Fri, Jun 22, 2001 | 8.10 | 8.16 | 7.60 | 7.82 | 100 | NASDAQ | ALGN | Thu, Jun 21, 2001 | 8.48 | 8.50 | 8.20 | 8.26 | 99 | NASDAQ | ALGN | Wed, Jun 20, 2001 | 8.31 | 8.69 | 8.25 | 8.43 | 98 | NASDAQ | ALGN | Tue, Jun 19, 2001 | 8.95 | 9.10 | 8.53 | 8.53 | 97 | NASDAQ | ALGN | Mon, Jun 18, 2001 | 9.10 | 9.13 | 8.90 | 9.02 | 96 | NASDAQ | ALGN | Fri, Jun 15, 2001 | 9.09 | 9.10 | 8.90 | 8.90 | 95 | NASDAQ | ALGN | Thu, Jun 14, 2001 | 8.88 | 9.04 | 8.88 | 8.99 | 94 | NASDAQ | ALGN | Wed, Jun 13, 2001 | 8.88 | 9.07 | 8.88 | 9.00 | 93 | NASDAQ | ALGN | Tue, Jun 12, 2001 | 9.16 | 9.16 | 8.86 | 8.88 | 92 | NASDAQ | ALGN | Mon, Jun 11, 2001 | 9.34 | 9.34 | 9.15 | 9.26 | 91 | NASDAQ | ALGN | Fri, Jun 8, 2001 | 9.45 | 9.47 | 9.00 | 9.30 | 90 | NASDAQ | ALGN | Thu, Jun 7, 2001 | 10.12 | 10.12 | 9.30 | 9.55 | 89 | NASDAQ | ALGN | Wed, Jun 6, 2001 | 10.25 | 10.48 | 9.80 | 9.90 | 88 | NASDAQ | ALGN | Tue, Jun 5, 2001 | 10.22 | 10.53 | 10.17 | 10.25 | 87 | NASDAQ | ALGN | Mon, Jun 4, 2001 | 10.07 | 10.22 | 9.95 | 10.15 | 86 | NASDAQ | ALGN | Fri, Jun 1, 2001 | 10.00 | 10.15 | 10.00 | 10.05 | 85 | NASDAQ | ALGN | Thu, May 31, 2001 | 9.30 | 10.15 | 9.30 | 10.00 | 84 | NASDAQ | ALGN | Wed, May 30, 2001 | 9.68 | 9.81 | 9.00 | 9.25 | 83 | NASDAQ | ALGN | Tue, May 29, 2001 | 10.56 | 10.56 | 9.70 | 9.95 | 82 | NASDAQ | ALGN | Fri, May 25, 2001 | 11.95 | 11.95 | 10.00 | 10.15 | 81 | NASDAQ | ALGN | Thu, May 24, 2001 | 11.95 | 12.05 | 11.56 | 11.56 | 80 | NASDAQ | ALGN | Wed, May 23, 2001 | 11.93 | 12.05 | 11.22 | 12.01 | 79 | NASDAQ | ALGN | Tue, May 22, 2001 | 12.05 | 12.07 | 11.31 | 12.07 | 78 | NASDAQ | ALGN | Mon, May 21, 2001 | 11.45 | 12.10 | 11.30 | 11.95 | 77 | NASDAQ | ALGN | Fri, May 18, 2001 | 11.25 | 11.34 | 10.95 | 11.05 | 76 | NASDAQ | ALGN | Thu, May 17, 2001 | 10.13 | 12.45 | 10.13 | 10.96 | 75 | NASDAQ | ALGN | Wed, May 16, 2001 | 9.90 | 10.20 | 9.51 | 10.13 | 74 | NASDAQ | ALGN | Tue, May 15, 2001 | 9.25 | 10.20 | 9.20 | 9.80 | 73 | NASDAQ | ALGN | Mon, May 14, 2001 | 8.65 | 9.20 | 8.55 | 9.20 | 72 | NASDAQ | ALGN | Fri, May 11, 2001 | 8.99 | 9.10 | 8.30 | 8.80 | 71 | NASDAQ | ALGN | Thu, May 10, 2001 | 9.05 | 9.27 | 8.40 | 8.89 | 70 | NASDAQ | ALGN | Wed, May 9, 2001 | 9.60 | 9.60 | 9.00 | 9.15 | 69 | NASDAQ | ALGN | Tue, May 8, 2001 | 8.77 | 9.70 | 8.33 | 9.50 | 68 | NASDAQ | ALGN | Mon, May 7, 2001 | 8.11 | 8.80 | 8.00 | 8.80 | 67 | NASDAQ | ALGN | Fri, May 4, 2001 | 8.79 | 8.79 | 7.90 | 8.60 | 66 | NASDAQ | ALGN | Thu, May 3, 2001 | 8.89 | 8.90 | 8.12 | 8.70 | 65 | NASDAQ | ALGN | Wed, May 2, 2001 | 8.50 | 9.00 | 8.40 | 8.75 | 64 | NASDAQ | ALGN | Tue, May 1, 2001 | 9.00 | 9.05 | 8.25 | 8.50 | 63 | NASDAQ | ALGN | Mon, Apr 30, 2001 | 8.68 | 9.40 | 8.52 | 8.75 | 62 | NASDAQ | ALGN | Fri, Apr 27, 2001 | 9.13 | 9.15 | 8.40 | 8.75 | 61 | NASDAQ | ALGN | Thu, Apr 26, 2001 | 7.90 | 9.20 | 7.80 | 8.80 | 60 | NASDAQ | ALGN | Wed, Apr 25, 2001 | 8.32 | 8.33 | 7.55 | 8.00 | 59 | NASDAQ | ALGN | Tue, Apr 24, 2001 | 6.50 | 8.50 | 6.25 | 8.33 | 58 | NASDAQ | ALGN | Mon, Apr 23, 2001 | 6.10 | 7.15 | 6.05 | 6.65 | 57 | NASDAQ | ALGN | Fri, Apr 20, 2001 | 7.10 | 7.10 | 6.00 | 6.15 | 56 | NASDAQ | ALGN | Thu, Apr 19, 2001 | 7.74 | 7.75 | 6.75 | 7.15 | 55 | NASDAQ | ALGN | Wed, Apr 18, 2001 | 5.99 | 7.70 | 5.65 | 7.28 | 54 | NASDAQ | ALGN | Tue, Apr 17, 2001 | 5.50 | 5.89 | 5.50 | 5.80 | 53 | NASDAQ | ALGN | Mon, Apr 16, 2001 | 6.75 | 6.75 | 5.35 | 5.45 | 52 | NASDAQ | ALGN | Thu, Apr 12, 2001 | 6.66 | 6.98 | 5.75 | 6.00 | 51 | NASDAQ | ALGN | Wed, Apr 11, 2001 | 7.28 | 7.75 | 6.52 | 6.60 | 50 | NASDAQ | ALGN | Tue, Apr 10, 2001 | 6.75 | 7.27 | 6.75 | 7.15 | 49 | NASDAQ | ALGN | Mon, Apr 9, 2001 | 6.81 | 6.99 | 6.50 | 6.55 | 48 | NASDAQ | ALGN | Fri, Apr 6, 2001 | 6.73 | 7.22 | 6.50 | 6.63 | 47 | NASDAQ | ALGN | Thu, Apr 5, 2001 | 6.72 | 6.88 | 6.50 | 6.56 | 46 | NASDAQ | ALGN | Wed, Apr 4, 2001 | 6.52 | 6.78 | 6.50 | 6.56 | 45 | NASDAQ | ALGN | Tue, Apr 3, 2001 | 7.25 | 7.25 | 6.25 | 6.69 | 44 | NASDAQ | ALGN | Mon, Apr 2, 2001 | 7.30 | 7.81 | 7.19 | 7.25 | 43 | NASDAQ | ALGN | Fri, Mar 30, 2001 | 7.47 | 7.63 | 7.19 | 7.25 | 42 | NASDAQ | ALGN | Thu, Mar 29, 2001 | 7.63 | 7.88 | 6.81 | 7.25 | 41 | NASDAQ | ALGN | Wed, Mar 28, 2001 | 7.53 | 8.09 | 7.25 | 7.56 | 40 | NASDAQ | ALGN | Tue, Mar 27, 2001 | 7.25 | 7.56 | 7.25 | 7.41 | 39 | NASDAQ | ALGN | Mon, Mar 26, 2001 | 8.00 | 8.25 | 7.25 | 7.50 | 38 | NASDAQ | ALGN | Fri, Mar 23, 2001 | 7.97 | 8.00 | 7.75 | 7.81 | 37 | NASDAQ | ALGN | Thu, Mar 22, 2001 | 8.05 | 8.06 | 7.63 | 7.75 | 36 | NASDAQ | ALGN | Wed, Mar 21, 2001 | 8.48 | 8.50 | 8.00 | 8.19 | 35 | NASDAQ | ALGN | Tue, Mar 20, 2001 | 8.69 | 8.94 | 8.19 | 8.19 | 34 | NASDAQ | ALGN | Mon, Mar 19, 2001 | 8.50 | 9.47 | 8.25 | 8.88 | 33 | NASDAQ | ALGN | Fri, Mar 16, 2001 | 9.44 | 9.75 | 8.00 | 8.25 | 32 | NASDAQ | ALGN | Thu, Mar 15, 2001 | 10.44 | 10.50 | 9.44 | 9.44 | 31 | NASDAQ | ALGN | Wed, Mar 14, 2001 | 9.75 | 10.48 | 9.13 | 10.25 | 30 | NASDAQ | ALGN | Tue, Mar 13, 2001 | 8.50 | 9.94 | 8.44 | 9.50 | 29 | NASDAQ | ALGN | Mon, Mar 12, 2001 | 8.38 | 8.63 | 7.94 | 8.50 | 28 | NASDAQ | ALGN | Fri, Mar 9, 2001 | 8.56 | 8.63 | 8.00 | 8.13 | 27 | NASDAQ | ALGN | Thu, Mar 8, 2001 | 7.81 | 8.50 | 7.63 | 8.47 | 26 | NASDAQ | ALGN | Wed, Mar 7, 2001 | 7.97 | 8.00 | 7.44 | 7.81 | 25 | NASDAQ | ALGN | Tue, Mar 6, 2001 | 6.52 | 7.63 | 6.50 | 7.50 | 24 | NASDAQ | ALGN | Mon, Mar 5, 2001 | 7.59 | 7.63 | 6.13 | 6.69 | 23 | NASDAQ | ALGN | Fri, Mar 2, 2001 | 7.56 | 7.63 | 7.31 | 7.50 | 22 | NASDAQ | ALGN | Thu, Mar 1, 2001 | 7.48 | 7.63 | 7.31 | 7.56 | 21 | NASDAQ | ALGN | Wed, Feb 28, 2001 | 8.09 | 8.13 | 7.38 | 7.50 | 20 | NASDAQ | ALGN | Tue, Feb 27, 2001 | 9.41 | 9.50 | 7.13 | 7.56 | 19 | NASDAQ | ALGN | Mon, Feb 26, 2001 | 10.66 | 11.38 | 8.75 | 9.00 | 18 | NASDAQ | ALGN | Fri, Feb 23, 2001 | 12.13 | 12.25 | 10.63 | 11.06 | 17 | NASDAQ | ALGN | Thu, Feb 22, 2001 | 12.00 | 12.50 | 11.50 | 12.11 | 16 | NASDAQ | ALGN | Wed, Feb 21, 2001 | 12.59 | 13.13 | 12.25 | 12.31 | 15 | NASDAQ | ALGN | Tue, Feb 20, 2001 | 13.63 | 13.69 | 12.63 | 12.75 | 14 | NASDAQ | ALGN | Fri, Feb 16, 2001 | 12.84 | 13.06 | 12.50 | 13.06 | 13 | NASDAQ | ALGN | Thu, Feb 15, 2001 | 12.06 | 13.00 | 12.05 | 12.81 | 12 | NASDAQ | ALGN | Wed, Feb 14, 2001 | 11.42 | 11.75 | 11.00 | 11.63 | 11 | NASDAQ | ALGN | Tue, Feb 13, 2001 | 11.00 | 11.56 | 11.00 | 11.44 | 10 | NASDAQ | ALGN | Mon, Feb 12, 2001 | 12.05 | 12.13 | 10.94 | 11.06 | 9 | NASDAQ | ALGN | Fri, Feb 9, 2001 | 13.05 | 13.06 | 11.88 | 12.00 | 8 | NASDAQ | ALGN | Thu, Feb 8, 2001 | 13.13 | 13.19 | 13.00 | 13.06 | 7 | NASDAQ | ALGN | Wed, Feb 7, 2001 | 14.00 | 14.06 | 13.00 | 13.06 | 6 | NASDAQ | ALGN | Tue, Feb 6, 2001 | 14.02 | 14.06 | 13.88 | 14.00 | 5 | NASDAQ | ALGN | Mon, Feb 5, 2001 | 14.44 | 14.50 | 13.88 | 14.13 | 4 | NASDAQ | ALGN | Fri, Feb 2, 2001 | 14.00 | 14.56 | 13.75 | 14.13 | 3 | NASDAQ | ALGN | Thu, Feb 1, 2001 | 13.13 | 14.38 | 13.00 | 14.19 | 2 | NASDAQ | ALGN | Wed, Jan 31, 2001 | 17.13 | 17.19 | 13.44 | 13.50 | 1 | NASDAQ | ALGN | Tue, Jan 30, 2001 | 18.13 | 18.19 | 16.25 | 16.88 |
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# | Exchange | Symbol | Date | Open | High | Low | Close |
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