Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
0.7001
-0.0372 (-5.05%)
At close: Oct 16, 2026, 4:00 PM EDT
0.7500
+0.0499 (7.13%)
After-hours: Oct 16, 2026, 4:44 PM EDT
Aldeyra Therapeutics Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 16, 2026 | 0.74 | 0.74 | 0.65 | 0.70 | 0.70 | -5.05% | 1,808,399 |
| Oct 15, 2026 | 0.77 | 0.80 | 0.73 | 0.74 | 0.74 | -6.72% | 1,128,170 |
| Oct 14, 2026 | 0.88 | 0.90 | 0.79 | 0.79 | 0.79 | -12.16% | 1,573,312 |
| Oct 13, 2026 | 0.89 | 0.91 | 0.87 | 0.90 | 0.90 | -0.66% | 1,452,194 |
| Oct 12, 2026 | 0.92 | 0.94 | 0.88 | 0.91 | 0.91 | -1.15% | 1,334,794 |
| Oct 9, 2026 | 0.94 | 0.97 | 0.92 | 0.92 | 0.92 | -3.31% | 698,974 |
| Oct 8, 2026 | 0.96 | 0.97 | 0.91 | 0.95 | 0.95 | -1.14% | 1,178,025 |
| Oct 7, 2026 | 0.91 | 0.97 | 0.88 | 0.96 | 0.96 | 4.66% | 1,264,167 |
| Oct 6, 2026 | 0.95 | 0.99 | 0.86 | 0.92 | 0.92 | -0.84% | 7,595,933 |
| Oct 5, 2026 | 1.18 | 1.19 | 0.90 | 0.92 | 0.92 | -21.05% | 7,011,324 |
| Oct 2, 2026 | 1.31 | 1.31 | 1.15 | 1.17 | 1.17 | -9.30% | 2,278,805 |
| Oct 1, 2026 | 1.26 | 1.31 | 1.20 | 1.29 | 1.29 | 4.88% | 1,211,432 |
| Sep 30, 2026 | 1.34 | 1.35 | 1.22 | 1.23 | 1.23 | -6.82% | 1,651,522 |
| Sep 29, 2026 | 1.17 | 1.44 | 1.16 | 1.32 | 1.32 | 13.79% | 5,458,404 |
| Sep 28, 2026 | 1.18 | 1.22 | 1.15 | 1.16 | 1.16 | -3.73% | 1,020,512 |
| Sep 25, 2026 | 1.23 | 1.28 | 1.20 | 1.21 | 1.21 | -1.23% | 644,928 |
| Sep 24, 2026 | 1.35 | 1.35 | 1.22 | 1.22 | 1.22 | -9.63% | 838,696 |
| Sep 23, 2026 | 1.40 | 1.40 | 1.33 | 1.35 | 1.35 | -3.23% | 633,727 |
| Sep 22, 2026 | 1.37 | 1.40 | 1.35 | 1.40 | 1.40 | 3.33% | 429,894 |
| Sep 21, 2026 | 1.37 | 1.39 | 1.32 | 1.35 | 1.35 | -0.74% | 495,071 |
| Sep 18, 2026 | 1.40 | 1.40 | 1.35 | 1.36 | 1.36 | -1.45% | 367,724 |
| 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 |