Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
1.485
-0.055 (-3.57%)
At close: Aug 28, 2026, 4:00 PM EDT
1.620
+0.135 (9.08%)
After-hours: Aug 28, 2026, 7:30 PM EDT
Aldeyra Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Aug 28, 2026 | 1.52 | 1.56 | 1.48 | 1.49 | 1.49 | -3.57% | 547,971 |
| Aug 27, 2026 | 1.57 | 1.58 | 1.53 | 1.54 | 1.54 | -1.28% | 277,004 |
| Aug 26, 2026 | 1.54 | 1.58 | 1.52 | 1.56 | 1.56 | 0.65% | 477,047 |
| Aug 25, 2026 | 1.52 | 1.56 | 1.50 | 1.55 | 1.55 | 1.97% | 444,726 |
| Aug 24, 2026 | 1.53 | 1.55 | 1.46 | 1.52 | 1.52 | - | 531,878 |
| Aug 21, 2026 | 1.50 | 1.60 | 1.48 | 1.52 | 1.52 | 1.33% | 1,098,740 |
| Aug 20, 2026 | 1.57 | 1.58 | 1.50 | 1.50 | 1.50 | -5.06% | 941,942 |
| 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 |
| Jul 16, 2026 | 1.84 | 1.85 | 1.60 | 1.72 | 1.72 | -10.42% | 2,597,198 |
| Jul 15, 2026 | 1.92 | 1.97 | 1.90 | 1.92 | 1.92 | -0.52% | 913,096 |
| Jul 14, 2026 | 1.95 | 1.98 | 1.90 | 1.93 | 1.93 | - | 837,777 |
| Jul 13, 2026 | 2.03 | 2.06 | 1.90 | 1.93 | 1.93 | -6.76% | 1,377,465 |
| Jul 10, 2026 | 2.28 | 2.29 | 2.06 | 2.07 | 2.07 | -10.00% | 1,227,347 |
| Jul 9, 2026 | 2.14 | 2.31 | 2.06 | 2.30 | 2.30 | 7.98% | 2,084,733 |
| Jul 8, 2026 | 2.22 | 2.24 | 2.07 | 2.13 | 2.13 | -4.48% | 3,097,540 |
| Jul 7, 2026 | 2.28 | 2.35 | 2.19 | 2.23 | 2.23 | -2.19% | 2,137,101 |
| Jul 6, 2026 | 2.25 | 2.36 | 2.21 | 2.28 | 2.28 | 0.44% | 1,199,997 |
| Jul 2, 2026 | 2.41 | 2.53 | 2.25 | 2.27 | 2.27 | -6.58% | 2,118,631 |
| Jul 1, 2026 | 2.13 | 2.53 | 2.11 | 2.43 | 2.43 | 14.08% | 3,444,007 |
| Jun 30, 2026 | 2.05 | 2.16 | 2.05 | 2.13 | 2.13 | 3.90% | 2,185,263 |
| Jun 29, 2026 | 1.84 | 2.09 | 1.82 | 2.05 | 2.05 | 12.02% | 1,917,695 |
| Jun 26, 2026 | 1.82 | 1.88 | 1.71 | 1.83 | 1.83 | 1.67% | 6,078,839 |
| Jun 25, 2026 | 1.94 | 1.96 | 1.76 | 1.80 | 1.80 | -5.26% | 2,048,139 |
| Jun 24, 2026 | 2.06 | 2.09 | 1.85 | 1.90 | 1.90 | -5.94% | 2,126,028 |
| Jun 23, 2026 | 2.00 | 2.21 | 2.00 | 2.02 | 2.02 | -1.46% | 2,434,659 |
| Jun 22, 2026 | 1.95 | 2.15 | 1.95 | 2.05 | 2.05 | 4.59% | 1,690,764 |
| Jun 18, 2026 | 1.87 | 1.99 | 1.87 | 1.96 | 1.96 | 7.10% | 2,185,078 |