Align Technology Inc (ALGN) — Price History
As of 2026-08-07 — refreshed nightly from the Closelook data lake. Diary readings, not advice.
Daily prices
| Date | Open | High | Low | Close | Chg % | Volume |
|---|---|---|---|---|---|---|
| 2026-08-07 | 169.15 | 173.84 | 165.00 | 173.66 | +2.71% | 870,100 |
| 2026-08-06 | 173.43 | 174.09 | 168.67 | 169.08 | -3.29% | 655,700 |
| 2026-08-05 | 170.89 | 175.54 | 170.89 | 174.83 | +0.90% | 1,020,300 |
| 2026-08-04 | 172.10 | 174.33 | 170.50 | 173.27 | +0.22% | 1,116,100 |
| 2026-08-03 | 171.41 | 175.48 | 171.00 | 172.89 | +2.21% | 998,800 |
| 2026-07-31 | 170.81 | 171.75 | 164.74 | 169.16 | -2.45% | 1,608,000 |
| 2026-07-30 | 180.72 | 187.96 | 171.04 | 173.41 | -3.70% | 1,534,300 |
| 2026-07-29 | 175.60 | 184.00 | 174.41 | 180.08 | +2.55% | 1,657,600 |
| 2026-07-28 | 169.93 | 175.85 | 169.93 | 175.60 | +4.49% | 914,000 |
| 2026-07-27 | 165.43 | 172.10 | 164.75 | 168.05 | +0.62% | 1,032,700 |
| 2026-07-24 | 168.50 | 170.51 | 165.97 | 167.02 | -0.73% | 846,000 |
| 2026-07-23 | 169.28 | 171.31 | 165.67 | 168.24 | -2.45% | 821,000 |
| 2026-07-22 | 178.78 | 178.78 | 172.21 | 172.46 | -2.84% | 511,900 |
| 2026-07-21 | 175.05 | 179.30 | 173.01 | 177.50 | +1.40% | 683,100 |
| 2026-07-20 | 177.08 | 177.99 | 174.05 | 175.05 | -0.97% | 1,060,200 |
| 2026-07-17 | 176.19 | 181.17 | 174.93 | 176.76 | -0.92% | 828,700 |
| 2026-07-16 | 181.25 | 182.93 | 176.32 | 178.41 | -1.57% | 1,378,100 |
| 2026-07-15 | 178.23 | 184.60 | 178.23 | 181.26 | +1.57% | 604,800 |
| 2026-07-14 | 181.54 | 182.44 | 175.14 | 178.46 | -1.18% | 417,700 |
| 2026-07-13 | 180.14 | 184.62 | 179.78 | 180.59 | +0.64% | 486,800 |
| 2026-07-10 | 179.61 | 181.22 | 175.00 | 179.45 | +0.72% | 630,800 |
| 2026-07-09 | 174.42 | 180.29 | 173.70 | 178.17 | +2.00% | 1,086,100 |
| 2026-07-08 | 182.55 | 185.07 | 173.97 | 174.68 | -5.69% | 1,018,600 |
| 2026-07-07 | 189.61 | 190.97 | 183.79 | 185.22 | -1.68% | 913,500 |
| 2026-07-06 | 183.72 | 188.60 | 179.37 | 188.39 | +2.10% | 1,104,700 |
| 2026-07-02 | 183.11 | 186.52 | 181.53 | 184.52 | +1.67% | 1,354,100 |
| 2026-07-01 | 168.66 | 182.84 | 166.91 | 181.49 | +7.61% | 1,506,000 |
| 2026-06-30 | 172.80 | 173.43 | 166.27 | 168.66 | -2.75% | 1,372,600 |
| 2026-06-29 | 177.62 | 178.34 | 170.05 | 173.43 | -2.80% | 973,300 |
| 2026-06-26 | 174.03 | 179.35 | 174.03 | 178.43 | +1.55% | 1,668,700 |
| 2026-06-25 | 172.99 | 176.70 | 171.54 | 175.71 | +2.81% | 850,500 |
| 2026-06-24 | 170.34 | 174.37 | 165.50 | 170.90 | +1.43% | 1,502,700 |
| 2026-06-23 | 172.67 | 174.67 | 168.29 | 168.49 | -3.03% | 1,112,500 |
| 2026-06-22 | 178.50 | 180.55 | 173.48 | 173.76 | -4.57% | 1,277,800 |
| 2026-06-18 | 176.70 | 183.03 | 173.56 | 182.08 | +4.93% | 1,949,700 |
| 2026-06-17 | 179.36 | 185.00 | 172.16 | 173.53 | -3.34% | 843,700 |
| 2026-06-16 | 178.27 | 181.22 | 177.75 | 179.52 | +0.71% | 635,200 |
| 2026-06-15 | 177.88 | 182.59 | 177.21 | 178.26 | +1.96% | 1,091,800 |
| 2026-06-12 | 176.51 | 177.49 | 172.43 | 174.84 | -0.95% | 574,500 |
| 2026-06-11 | 170.50 | 177.88 | 169.30 | 176.51 | +3.52% | 1,029,400 |
| 2026-06-10 | 177.73 | 179.21 | 169.99 | 170.50 | -4.27% | 1,155,000 |
| 2026-06-09 | 174.51 | 179.85 | 172.59 | 178.10 | +3.52% | 1,044,500 |
| 2026-06-08 | 167.55 | 173.29 | 167.08 | 172.05 | +2.57% | 1,010,900 |
| 2026-06-05 | 168.29 | 171.00 | 166.40 | 167.74 | -0.33% | 494,400 |
| 2026-06-04 | 164.90 | 168.42 | 164.07 | 168.29 | +4.07% | 979,600 |
| 2026-06-03 | 166.27 | 167.13 | 160.70 | 161.71 | -2.99% | 1,068,900 |
| 2026-06-02 | 169.77 | 173.47 | 165.99 | 166.69 | -1.81% | 901,900 |
| 2026-06-01 | 172.40 | 173.40 | 169.30 | 169.77 | -2.96% | 856,800 |
| 2026-05-29 | 173.79 | 177.66 | 171.92 | 174.95 | +0.98% | 1,154,900 |
| 2026-05-28 | 162.88 | 173.78 | 160.33 | 173.25 | +6.37% | 1,590,700 |
| 2026-05-27 | 164.80 | 167.50 | 161.43 | 162.88 | -0.41% | 1,553,300 |
| 2026-05-26 | 164.97 | 166.00 | 162.32 | 163.55 | -0.04% | 873,500 |
| 2026-05-22 | 162.90 | 165.48 | 161.17 | 163.61 | +0.35% | 844,500 |
| 2026-05-21 | 162.15 | 165.01 | 160.43 | 163.04 | -0.21% | 1,163,600 |
| 2026-05-20 | 155.16 | 163.95 | 151.58 | 163.38 | +5.30% | 1,518,200 |
| 2026-05-19 | 158.59 | 159.69 | 154.20 | 155.16 | -2.28% | 1,403,600 |
| 2026-05-18 | 158.02 | 161.22 | 155.90 | 158.78 | +0.97% | 982,700 |
| 2026-05-15 | 159.55 | 161.00 | 156.99 | 157.25 | -2.04% | 923,600 |
| 2026-05-14 | 161.40 | 163.59 | 159.85 | 160.53 | -0.75% | 633,700 |
| 2026-05-13 | 165.42 | 165.77 | 160.88 | 161.75 | -2.44% | 636,400 |
| 2026-05-12 | 164.78 | 167.65 | 163.60 | 165.79 | +0.72% | 630,600 |
| 2026-05-11 | 168.88 | 169.66 | 162.72 | 164.61 | -2.47% | 1,129,400 |
| 2026-05-08 | 168.39 | 169.18 | 163.29 | 168.78 | +0.23% | 835,800 |
| 2026-05-07 | 174.96 | 176.46 | 167.82 | 168.39 | -3.19% | 753,300 |
| 2026-05-06 | 169.47 | 174.96 | 168.73 | 173.94 | +3.10% | 768,400 |
| 2026-05-05 | 171.26 | 172.62 | 167.77 | 168.71 | -1.84% | 751,200 |
| 2026-05-04 | 175.73 | 178.12 | 171.27 | 171.88 | -3.93% | 703,600 |
| 2026-05-01 | 177.16 | 179.37 | 174.98 | 178.91 | +1.65% | 840,300 |
| 2026-04-30 | 177.00 | 177.11 | 167.46 | 176.01 | -1.34% | 1,932,700 |
| 2026-04-29 | 177.28 | 180.42 | 176.08 | 178.40 | +0.63% | 1,378,600 |
| 2026-04-28 | 183.76 | 183.76 | 174.62 | 177.28 | -4.02% | 1,705,600 |
| 2026-04-27 | 189.71 | 192.45 | 183.81 | 184.70 | -2.59% | 1,484,600 |
| 2026-04-24 | 190.96 | 191.91 | 187.01 | 189.61 | -0.56% | 738,500 |
| 2026-04-23 | 194.52 | 196.13 | 187.58 | 190.67 | -2.74% | 1,024,600 |
| 2026-04-22 | 198.12 | 198.12 | 193.67 | 196.05 | +0.44% | 922,300 |
| 2026-04-21 | 193.40 | 200.44 | 192.35 | 195.20 | +1.85% | 1,467,400 |
| 2026-04-20 | 187.35 | 193.00 | 187.05 | 191.66 | +0.84% | 1,362,700 |
| 2026-04-17 | 188.87 | 194.67 | 188.23 | 190.07 | +2.73% | 1,025,000 |
| 2026-04-16 | 186.72 | 189.00 | 184.48 | 185.02 | -0.81% | 645,900 |
| 2026-04-15 | 187.32 | 187.99 | 185.34 | 186.53 | +1.00% | 785,800 |
| 2026-04-14 | 183.10 | 187.99 | 182.63 | 184.69 | +2.23% | 879,300 |
| 2026-04-13 | 171.74 | 181.28 | 170.18 | 180.67 | +4.35% | 1,031,600 |
| 2026-04-10 | 175.27 | 178.23 | 172.34 | 173.14 | -0.80% | 784,900 |
| 2026-04-09 | 173.21 | 175.65 | 170.50 | 174.53 | -1.30% | 970,100 |
| 2026-04-08 | 177.62 | 185.00 | 176.00 | 176.83 | +5.97% | 927,400 |
| 2026-04-07 | 171.10 | 171.15 | 165.40 | 166.87 | -2.91% | 934,500 |
| 2026-04-06 | 170.07 | 172.73 | 169.13 | 171.87 | +0.74% | 501,600 |
| 2026-04-02 | 168.52 | 175.15 | 164.00 | 170.60 | -1.23% | 1,081,500 |
| 2026-04-01 | 172.61 | 178.17 | 171.74 | 172.73 | +0.76% | 872,200 |
| 2026-03-31 | 167.50 | 173.12 | 166.06 | 171.43 | +3.11% | 791,400 |
| 2026-03-30 | 168.25 | 168.25 | 164.73 | 166.26 | -0.07% | 1,056,100 |
| 2026-03-27 | 175.51 | 176.83 | 163.78 | 166.38 | -6.17% | 1,294,100 |
| 2026-03-26 | 177.66 | 182.97 | 176.73 | 177.33 | -1.63% | 652,100 |
| 2026-03-25 | 180.78 | 183.34 | 176.15 | 180.27 | +0.52% | 746,800 |
| 2026-03-24 | 177.92 | 181.45 | 175.38 | 179.34 | -0.84% | 985,600 |
| 2026-03-23 | 178.00 | 182.16 | 176.36 | 180.86 | +4.43% | 1,442,500 |
| 2026-03-20 | 175.97 | 178.74 | 171.27 | 173.18 | -1.74% | 2,108,400 |
| 2026-03-19 | 180.00 | 180.62 | 175.04 | 176.25 | +2.23% | 2,321,800 |
| 2026-03-18 | 172.97 | 175.43 | 170.50 | 172.41 | -2.11% | 1,729,400 |
| 2026-03-17 | 174.19 | 179.06 | 174.19 | 176.12 | +3.94% | 1,340,700 |
| 2026-03-16 | 166.60 | 169.57 | 164.05 | 169.45 | +3.18% | 1,514,900 |
| 2026-03-13 | 167.43 | 168.23 | 162.27 | 164.23 | -1.61% | 1,886,500 |
| 2026-03-12 | 172.80 | 173.76 | 165.73 | 166.92 | -4.51% | 1,809,900 |
| 2026-03-11 | 168.53 | 177.45 | 168.31 | 174.81 | +3.18% | 1,626,800 |
| 2026-03-10 | 176.30 | 176.48 | 169.30 | 169.43 | -3.21% | 1,514,212 |
| 2026-03-09 | 170.60 | 175.49 | 164.51 | 175.05 | +0.60% | 1,796,902 |
| 2026-03-06 | 171.20 | 174.31 | 168.01 | 174.00 | -0.91% | 1,774,000 |
| 2026-03-05 | 178.21 | 179.86 | 174.00 | 175.60 | -3.60% | 1,113,800 |
| 2026-03-04 | 183.06 | 184.51 | 181.07 | 182.16 | -0.26% | 866,300 |
| 2026-03-03 | 182.40 | 184.84 | 176.14 | 182.64 | -3.38% | 1,017,200 |
| 2026-03-02 | 184.59 | 189.35 | 181.70 | 189.02 | -0.57% | 1,044,500 |
| 2026-02-27 | 185.55 | 190.93 | 185.07 | 190.10 | +0.48% | 1,530,600 |
| 2026-02-26 | 188.53 | 190.80 | 187.50 | 189.20 | +0.61% | 869,900 |
| 2026-02-25 | 186.47 | 188.52 | 184.93 | 188.05 | +1.36% | 888,000 |
| 2026-02-24 | 180.61 | 186.14 | 179.79 | 185.53 | +2.36% | 1,268,300 |
| 2026-02-23 | 186.27 | 187.00 | 175.35 | 181.26 | -4.61% | 1,577,500 |
| 2026-02-20 | 188.23 | 192.69 | 186.37 | 190.02 | +0.33% | 1,037,300 |
| 2026-02-19 | 189.97 | 191.47 | 186.28 | 189.40 | -0.74% | 760,300 |
| 2026-02-18 | 187.82 | 191.48 | 187.61 | 190.82 | +1.92% | 1,031,800 |
| 2026-02-17 | 185.91 | 190.48 | 185.51 | 187.22 | +0.24% | 1,351,500 |
| 2026-02-13 | 184.72 | 188.63 | 181.09 | 186.77 | +1.58% | 1,272,000 |
| 2026-02-12 | 197.00 | 199.06 | 183.56 | 183.86 | -6.91% | 2,012,500 |
| 2026-02-11 | 196.60 | 197.71 | 194.22 | 197.51 | +0.63% | 1,369,600 |
| 2026-02-10 | 192.78 | 197.74 | 192.27 | 196.27 | +1.96% | 2,014,700 |
| 2026-02-09 | 188.00 | 193.83 | 185.98 | 192.50 | +2.61% | 1,872,100 |
| 2026-02-06 | 177.89 | 188.67 | 176.66 | 187.60 | +6.82% | 1,967,200 |
| 2026-02-05 | 176.06 | 179.91 | 172.00 | 175.62 | +8.88% | 2,674,100 |
| 2026-02-04 | 157.24 | 170.08 | 156.25 | 161.30 | +2.71% | 2,939,700 |
| 2026-02-03 | 163.74 | 165.47 | 154.83 | 157.05 | -4.02% | 1,186,100 |
| 2026-02-02 | 162.83 | 165.00 | 161.12 | 163.63 | +0.37% | 1,102,100 |
| 2026-01-30 | 164.12 | 165.79 | 161.00 | 163.03 | -0.66% | 1,181,800 |
| 2026-01-29 | 166.14 | 166.14 | 160.66 | 164.12 | -0.49% | 737,400 |
| 2026-01-28 | 167.53 | 167.53 | 163.65 | 164.92 | -1.27% | 624,300 |
| 2026-01-27 | 166.45 | 168.54 | 164.53 | 167.04 | -0.36% | 685,600 |
| 2026-01-26 | 168.80 | 168.80 | 166.66 | 167.65 | -0.64% | 505,400 |
| 2026-01-23 | 168.20 | 169.87 | 167.57 | 168.73 | -0.11% | 408,000 |
| 2026-01-22 | 171.15 | 172.36 | 167.49 | 168.92 | -0.61% | 662,000 |
| 2026-01-21 | 167.68 | 172.00 | 167.32 | 169.95 | +2.66% | 1,031,000 |
| 2026-01-20 | 167.28 | 169.33 | 164.44 | 165.55 | -3.46% | 1,118,700 |
| 2026-01-16 | 171.00 | 174.67 | 171.00 | 171.49 | +0.01% | 1,371,000 |
| 2026-01-15 | 169.74 | 172.62 | 167.40 | 171.47 | +1.32% | 907,700 |
| 2026-01-14 | 169.33 | 171.59 | 168.88 | 169.23 | -0.57% | 814,900 |
| 2026-01-13 | 171.98 | 172.51 | 167.95 | 170.20 | -1.05% | 913,600 |
| 2026-01-12 | 173.36 | 174.01 | 168.84 | 172.00 | -0.46% | 885,400 |
| 2026-01-09 | 171.31 | 173.04 | 168.02 | 172.79 | +1.30% | 770,300 |
| 2026-01-08 | 166.82 | 172.10 | 166.81 | 170.58 | +2.26% | 859,300 |
| 2026-01-07 | 168.49 | 169.32 | 165.88 | 166.81 | -0.51% | 787,400 |
| 2026-01-06 | 160.47 | 168.04 | 160.11 | 167.66 | +4.70% | 1,164,700 |
| 2026-01-05 | 155.08 | 161.16 | 154.79 | 160.13 | +2.63% | 1,279,200 |
| 2026-01-02 | 157.72 | 158.09 | 154.62 | 156.03 | -0.08% | 809,600 |
| 2025-12-31 | 157.12 | 158.03 | 156.03 | 156.15 | -1.26% | 496,400 |
| 2025-12-30 | 157.62 | 158.36 | 156.61 | 158.14 | +0.19% | 574,600 |
| 2025-12-29 | 157.95 | 159.16 | 157.43 | 157.84 | -0.33% | 838,200 |
| 2025-12-26 | 157.56 | 158.64 | 156.76 | 158.37 | +0.34% | 503,100 |
| 2025-12-24 | 156.76 | 158.62 | 154.98 | 157.84 | +0.69% | 407,400 |
| 2025-12-23 | 158.48 | 158.59 | 155.98 | 156.76 | -1.58% | 934,400 |
| 2025-12-22 | 158.69 | 160.11 | 157.94 | 159.28 | +1.01% | 1,098,900 |
| 2025-12-19 | 160.95 | 161.60 | 156.47 | 157.69 | -2.32% | 2,638,500 |
| 2025-12-18 | 161.88 | 162.58 | 159.97 | 161.44 | +0.54% | 1,141,300 |
| 2025-12-17 | 163.00 | 165.26 | 159.40 | 160.58 | -1.42% | 1,165,000 |
| 2025-12-16 | 162.49 | 164.11 | 161.19 | 162.89 | +0.10% | 1,287,100 |
| 2025-12-15 | 166.49 | 167.02 | 162.60 | 162.73 | -1.63% | 1,119,500 |
| 2025-12-12 | 164.15 | 166.83 | 163.00 | 165.43 | +0.95% | 1,685,900 |
| 2025-12-11 | 164.11 | 165.27 | 162.11 | 163.87 | -0.43% | 1,188,100 |
| 2025-12-10 | 159.02 | 166.61 | 159.01 | 164.58 | +3.51% | 1,233,400 |
| 2025-12-09 | 160.45 | 162.89 | 157.98 | 159.00 | +0.84% | 1,505,300 |
| 2025-12-08 | 157.34 | 158.92 | 156.66 | 157.68 | +0.30% | 1,180,000 |
| 2025-12-05 | 157.92 | 159.50 | 155.40 | 157.21 | +0.24% | 1,565,400 |
| 2025-12-04 | 154.71 | 156.95 | 153.17 | 156.84 | +1.19% | 1,364,300 |
| 2025-12-03 | 151.55 | 156.60 | 150.92 | 155.00 | +2.70% | 1,571,200 |
| 2025-12-02 | 147.14 | 152.06 | 146.12 | 150.93 | +2.87% | 1,975,000 |
| 2025-12-01 | 145.10 | 148.47 | 144.00 | 146.72 | -0.32% | 1,657,000 |
| 2025-11-28 | 147.51 | 148.09 | 146.25 | 147.19 | -0.03% | 732,800 |
| 2025-11-26 | 147.35 | 149.44 | 146.46 | 147.23 | -0.18% | 1,568,000 |
| 2025-11-25 | 144.43 | 152.99 | 144.30 | 147.50 | +2.69% | 2,572,500 |
| 2025-11-24 | 142.00 | 145.11 | 139.13 | 143.63 | +0.75% | 6,264,100 |
| 2025-11-21 | 132.96 | 143.46 | 132.64 | 142.56 | +7.34% | 1,814,100 |
| 2025-11-20 | 133.97 | 137.41 | 132.74 | 132.81 | -0.65% | 924,400 |
| 2025-11-19 | 132.26 | 134.97 | 131.95 | 133.68 | +1.06% | 1,049,900 |
| 2025-11-18 | 132.47 | 132.87 | 130.23 | 132.28 | -0.25% | 1,593,500 |
| 2025-11-17 | 135.52 | 136.56 | 131.66 | 132.61 | -3.30% | 902,600 |
| 2025-11-14 | 137.01 | 138.02 | 136.00 | 137.13 | -1.64% | 809,700 |
| 2025-11-13 | 140.32 | 143.42 | 138.93 | 139.42 | -1.60% | 1,026,800 |
| 2025-11-12 | 144.45 | 145.25 | 140.69 | 141.69 | -1.94% | 1,212,800 |
| 2025-11-11 | 139.32 | 144.84 | 138.25 | 144.49 | +4.53% | 1,427,800 |
| 2025-11-10 | 136.47 | 138.50 | 134.02 | 138.23 | +2.51% | 872,500 |
| 2025-11-07 | 132.39 | 134.99 | 132.39 | 134.84 | +0.83% | 810,900 |
| 2025-11-06 | 137.66 | 138.50 | 131.90 | 133.73 | -2.54% | 991,700 |
| 2025-11-05 | 136.46 | 137.58 | 133.39 | 137.21 | +1.14% | 1,189,800 |
| 2025-11-04 | 138.32 | 138.49 | 133.87 | 135.67 | -2.06% | 1,172,700 |
| 2025-11-03 | 137.58 | 138.69 | 133.71 | 138.53 | +0.47% | 1,246,200 |
| 2025-10-31 | 137.74 | 138.73 | 133.92 | 137.88 | -0.40% | 1,641,900 |
| 2025-10-30 | 145.22 | 150.78 | 137.62 | 138.43 | +4.94% | 3,842,800 |
| 2025-10-29 | 134.10 | 135.55 | 130.73 | 131.91 | -0.92% | 2,200,100 |
| 2025-10-28 | 134.94 | 135.60 | 132.79 | 133.14 | -1.85% | 874,200 |
| 2025-10-27 | 135.43 | 136.81 | 134.13 | 135.65 | +0.33% | 1,010,600 |
| 2025-10-24 | 137.83 | 138.50 | 135.14 | 135.21 | -0.58% | 864,300 |
| 2025-10-23 | 136.11 | 137.83 | 135.31 | 136.00 | +0.31% | 1,032,100 |
| 2025-10-22 | 136.50 | 138.41 | 135.37 | 135.58 | -0.47% | 1,254,800 |
| 2025-10-21 | 133.62 | 136.93 | 132.09 | 136.22 | +0.96% | 956,800 |
| 2025-10-20 | 132.62 | 135.06 | 131.13 | 134.93 | +3.43% | 1,031,900 |
| 2025-10-17 | 129.91 | 131.45 | 128.67 | 130.45 | +0.47% | 1,111,200 |
| 2025-10-16 | 129.14 | 133.65 | 128.65 | 129.84 | +1.10% | 1,386,000 |
| 2025-10-15 | 130.71 | 131.50 | 127.72 | 128.43 | -1.05% | 1,075,900 |
| 2025-10-14 | 127.07 | 131.59 | 126.33 | 129.79 | +0.19% | 1,059,000 |
| 2025-10-13 | 127.25 | 130.04 | 126.26 | 129.54 | +2.98% | 1,137,100 |
| 2025-10-10 | 128.70 | 130.80 | 124.91 | 125.79 | -4.61% | 1,751,200 |
| 2025-10-09 | 133.26 | 133.43 | 131.03 | 131.87 | -0.92% | 1,214,900 |
| 2025-10-08 | 130.56 | 133.24 | 129.95 | 133.09 | +2.01% | 1,051,300 |
| 2025-10-07 | 131.85 | 132.64 | 130.05 | 130.47 | -0.78% | 1,234,700 |
| 2025-10-06 | 132.82 | 134.04 | 129.53 | 131.50 | -0.51% | 1,477,800 |
| 2025-10-03 | 129.73 | 134.98 | 129.50 | 132.17 | +2.70% | 1,606,100 |
| 2025-10-02 | 128.42 | 130.20 | 127.31 | 128.70 | +0.93% | 1,094,600 |
| 2025-10-01 | 126.31 | 128.09 | 125.06 | 127.52 | +1.84% | 1,284,000 |
| 2025-09-30 | 125.60 | 125.93 | 123.02 | 125.22 | -0.91% | 1,435,200 |
| 2025-09-29 | 127.94 | 127.94 | 125.25 | 126.37 | +0.14% | 942,500 |
| 2025-09-26 | 125.46 | 127.00 | 124.55 | 126.19 | +1.05% | 908,900 |
| 2025-09-25 | 125.74 | 126.66 | 122.00 | 124.88 | -2.57% | 1,623,300 |
| 2025-09-24 | 128.90 | 130.29 | 127.62 | 128.18 | -0.64% | 938,500 |
| 2025-09-23 | 132.40 | 132.41 | 128.91 | 129.00 | -1.66% | 960,700 |
| 2025-09-22 | 130.99 | 131.97 | 129.38 | 131.18 | -0.16% | 796,500 |
| 2025-09-19 | 131.84 | 132.00 | 130.10 | 131.39 | -0.89% | 2,284,600 |
| 2025-09-18 | 131.93 | 132.89 | 129.32 | 132.57 | +2.42% | 1,223,100 |
| 2025-09-17 | 131.51 | 134.82 | 128.52 | 129.44 | -1.81% | 1,453,100 |
| 2025-09-16 | 131.76 | 133.23 | 131.27 | 131.82 | +0.58% | 761,200 |
| 2025-09-15 | 132.90 | 133.72 | 130.84 | 131.06 | -0.38% | 1,057,500 |
| 2025-09-12 | 135.52 | 135.52 | 131.51 | 131.56 | -3.20% | 719,500 |
| 2025-09-11 | 133.00 | 137.69 | 132.93 | 135.91 | +2.23% | 1,774,800 |
| 2025-09-10 | 136.23 | 138.54 | 132.48 | 132.94 | -2.20% | 1,518,200 |
| 2025-09-09 | 135.82 | 140.37 | 135.17 | 135.93 | -0.68% | 1,762,600 |
| 2025-09-08 | 139.88 | 139.88 | 136.43 | 136.86 | -1.62% | 1,423,500 |
| 2025-09-05 | 135.11 | 139.18 | 135.11 | 139.12 | +3.28% | 1,059,200 |
| 2025-09-04 | 132.91 | 135.11 | 131.00 | 134.70 | +1.78% | 1,270,400 |
| 2025-09-03 | 136.81 | 137.38 | 131.21 | 132.35 | -3.51% | 1,753,100 |
| 2025-09-02 | 138.86 | 139.32 | 134.80 | 137.16 | -3.38% | 1,168,300 |
| 2025-08-29 | 141.31 | 143.28 | 141.00 | 141.96 | +0.59% | 982,400 |
| 2025-08-28 | 142.00 | 142.97 | 140.23 | 141.13 | -0.60% | 929,100 |
| 2025-08-27 | 141.63 | 143.06 | 139.00 | 141.98 | +0.14% | 1,222,300 |
| 2025-08-26 | 145.06 | 146.36 | 140.57 | 141.78 | -2.19% | 1,063,400 |
| 2025-08-25 | 148.91 | 149.45 | 144.82 | 144.96 | -3.08% | 856,600 |
| 2025-08-22 | 141.10 | 150.22 | 141.10 | 149.57 | +6.33% | 1,503,100 |
| 2025-08-21 | 143.17 | 143.17 | 140.57 | 140.67 | -2.03% | 1,669,400 |
| 2025-08-20 | 143.24 | 143.82 | 141.62 | 143.58 | -0.13% | 1,540,600 |
| 2025-08-19 | 145.21 | 149.01 | 143.28 | 143.77 | -0.81% | 1,644,500 |
| 2025-08-18 | 142.36 | 145.71 | 142.00 | 144.94 | +1.76% | 1,034,100 |
| 2025-08-15 | 143.44 | 145.30 | 142.38 | 142.43 | -0.31% | 1,110,100 |
| 2025-08-14 | 143.71 | 144.52 | 141.50 | 142.88 | -1.96% | 1,287,000 |
| 2025-08-13 | 141.03 | 146.80 | 140.50 | 145.74 | +3.74% | 1,810,900 |
| 2025-08-12 | 135.03 | 141.32 | 134.36 | 140.49 | +4.21% | 1,688,500 |
| 2025-08-11 | 139.68 | 141.96 | 134.36 | 134.82 | -3.62% | 2,726,100 |
Most recent 250 sessions, newest first.
Seasonal returns
Best month historically: Nov (+9.10%). Worst month: Oct (-14.16%). Based on 5 years of daily data (2022–2026).
FAQ · from the current price data · as of 2026-08-07
Quick answers
What is Align Technology Inc's (ALGN) latest close?
173.66 on 2026-08-07, from the Closelook data lake's daily price record.
What is ALGN's 52-week high and low?
200.44 high and 122.00 low over the trailing 52 weeks, as of 2026-08-07.
What is Align Technology Inc's strongest and weakest month historically?
Historically, ALGN's strongest calendar month has been Nov (average +9.10%) and its weakest Oct (average -14.16%), based on 5 years of daily data (2022–2026).
How many years of seasonality does this cover?
5 years (2022–2026), computed from 965 daily bars in the Closelook data lake.