Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
1.205
-0.015 (-1.23%)
At close: Sep 25, 2026, 4:00 PM EDT
1.250
+0.045 (3.73%)
After-hours: Sep 25, 2026, 7:46 PM EDT
Aldeyra Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 25, 2026 | 1.23 | 1.28 | 1.20 | 1.21 | 1.21 | -1.23% | 643,580 |
| Sep 24, 2026 | 1.35 | 1.35 | 1.22 | 1.22 | 1.22 | -9.63% | 819,453 |
| Sep 23, 2026 | 1.40 | 1.40 | 1.33 | 1.35 | 1.35 | -3.23% | 629,923 |
| Sep 22, 2026 | 1.37 | 1.40 | 1.35 | 1.40 | 1.40 | 3.33% | 427,813 |
| Sep 21, 2026 | 1.37 | 1.39 | 1.32 | 1.35 | 1.35 | -0.74% | 494,547 |
| Sep 18, 2026 | 1.40 | 1.40 | 1.35 | 1.36 | 1.36 | -1.45% | 366,920 |
| Sep 17, 2026 | 1.39 | 1.44 | 1.37 | 1.38 | 1.38 | 0.73% | 394,917 |
| Sep 16, 2026 | 1.38 | 1.40 | 1.36 | 1.37 | 1.37 | - | 791,858 |
| Sep 15, 2026 | 1.45 | 1.45 | 1.35 | 1.37 | 1.37 | -6.16% | 833,612 |
| Sep 14, 2026 | 1.35 | 1.49 | 1.35 | 1.46 | 1.46 | 8.96% | 1,168,295 |
| Sep 11, 2026 | 1.48 | 1.48 | 1.33 | 1.34 | 1.34 | -8.22% | 1,565,518 |
| Sep 10, 2026 | 1.48 | 1.51 | 1.46 | 1.46 | 1.46 | -2.67% | 552,536 |
| Sep 9, 2026 | 1.53 | 1.54 | 1.50 | 1.50 | 1.50 | -2.60% | 544,208 |
| Sep 8, 2026 | 1.47 | 1.55 | 1.47 | 1.54 | 1.54 | 4.05% | 721,817 |
| Sep 4, 2026 | 1.47 | 1.49 | 1.46 | 1.48 | 1.48 | - | 486,184 |
| Sep 3, 2026 | 1.48 | 1.51 | 1.46 | 1.48 | 1.48 | -0.67% | 568,928 |
| Sep 2, 2026 | 1.51 | 1.54 | 1.46 | 1.49 | 1.49 | - | 498,451 |
| Sep 1, 2026 | 1.46 | 1.50 | 1.46 | 1.49 | 1.49 | 0.68% | 462,867 |
| Aug 31, 2026 | 1.51 | 1.51 | 1.47 | 1.48 | 1.48 | -0.34% | 495,386 |
| Aug 28, 2026 | 1.52 | 1.56 | 1.48 | 1.49 | 1.49 | -3.57% | 547,980 |
| Aug 27, 2026 | 1.57 | 1.58 | 1.53 | 1.54 | 1.54 | -1.28% | 277,452 |
| Aug 26, 2026 | 1.54 | 1.58 | 1.52 | 1.56 | 1.56 | 0.65% | 478,954 |
| Aug 25, 2026 | 1.52 | 1.56 | 1.50 | 1.55 | 1.55 | 1.97% | 447,174 |
| Aug 24, 2026 | 1.53 | 1.55 | 1.46 | 1.52 | 1.52 | - | 531,986 |
| Aug 21, 2026 | 1.50 | 1.60 | 1.48 | 1.52 | 1.52 | 1.33% | 1,098,866 |
| Aug 20, 2026 | 1.57 | 1.58 | 1.50 | 1.50 | 1.50 | -5.06% | 942,950 |
| Aug 19, 2026 | 1.59 | 1.60 | 1.54 | 1.58 | 1.58 | 1.94% | 982,203 |
| Aug 18, 2026 | 1.54 | 1.60 | 1.51 | 1.55 | 1.55 | -0.64% | 703,029 |
| Aug 17, 2026 | 1.55 | 1.58 | 1.53 | 1.56 | 1.56 | - | 789,812 |
| Aug 14, 2026 | 1.49 | 1.57 | 1.45 | 1.56 | 1.56 | 8.33% | 830,980 |
| Aug 13, 2026 | 1.53 | 1.57 | 1.44 | 1.44 | 1.44 | -5.26% | 1,356,981 |
| Aug 12, 2026 | 1.51 | 1.58 | 1.50 | 1.52 | 1.52 | 0.66% | 939,365 |
| Aug 11, 2026 | 1.53 | 1.54 | 1.50 | 1.51 | 1.51 | - | 473,993 |
| Aug 10, 2026 | 1.55 | 1.57 | 1.51 | 1.51 | 1.51 | -2.58% | 867,622 |
| Aug 7, 2026 | 1.56 | 1.62 | 1.53 | 1.55 | 1.55 | -2.52% | 1,171,283 |
| Aug 6, 2026 | 1.60 | 1.62 | 1.53 | 1.59 | 1.59 | -0.63% | 579,204 |
| Aug 5, 2026 | 1.55 | 1.63 | 1.55 | 1.60 | 1.60 | 3.23% | 822,651 |
| Aug 4, 2026 | 1.52 | 1.60 | 1.50 | 1.55 | 1.55 | 1.31% | 975,855 |
| Aug 3, 2026 | 1.55 | 1.55 | 1.49 | 1.53 | 1.53 | -0.65% | 784,764 |
| Jul 31, 2026 | 1.62 | 1.63 | 1.52 | 1.54 | 1.54 | -3.75% | 576,807 |
| Jul 30, 2026 | 1.63 | 1.67 | 1.60 | 1.60 | 1.60 | -0.62% | 549,277 |
| Jul 29, 2026 | 1.58 | 1.63 | 1.53 | 1.61 | 1.61 | 1.90% | 745,504 |
| Jul 28, 2026 | 1.62 | 1.62 | 1.49 | 1.58 | 1.58 | -0.32% | 916,757 |
| Jul 27, 2026 | 1.53 | 1.61 | 1.53 | 1.59 | 1.59 | 4.28% | 1,232,250 |
| Jul 24, 2026 | 1.60 | 1.60 | 1.48 | 1.52 | 1.52 | -1.94% | 1,126,283 |
| Jul 23, 2026 | 1.70 | 1.72 | 1.54 | 1.55 | 1.55 | -8.82% | 1,414,587 |
| Jul 22, 2026 | 1.75 | 1.76 | 1.66 | 1.70 | 1.70 | -2.86% | 1,086,633 |
| Jul 21, 2026 | 1.71 | 1.78 | 1.69 | 1.75 | 1.75 | 2.94% | 1,107,716 |
| Jul 20, 2026 | 1.70 | 1.76 | 1.65 | 1.70 | 1.70 | 0.59% | 1,130,944 |
| Jul 17, 2026 | 1.70 | 1.74 | 1.65 | 1.69 | 1.69 | -1.74% | 1,170,611 |