Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
5.60
+0.50 (9.92%)
Feb 6, 2026, 2:55 PM EST - Market open
Aldeyra Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Feb 6, 2026 | 5.21 | 5.35 | 5.15 | 5.37 | - | 5.40% | 163,055 |
| Feb 5, 2026 | 5.19 | 5.44 | 5.08 | 5.09 | 5.09 | -2.49% | 600,771 |
| Feb 4, 2026 | 5.45 | 5.48 | 4.92 | 5.22 | 5.22 | -3.51% | 935,663 |
| Feb 3, 2026 | 5.45 | 5.60 | 5.31 | 5.41 | 5.41 | -0.37% | 556,405 |
| Feb 2, 2026 | 5.32 | 5.59 | 5.25 | 5.43 | 5.43 | 1.31% | 355,678 |
| Jan 30, 2026 | 5.45 | 5.93 | 5.27 | 5.36 | 5.36 | 0.75% | 742,805 |
| Jan 29, 2026 | 5.42 | 5.44 | 5.23 | 5.32 | 5.32 | -1.85% | 525,356 |
| Jan 28, 2026 | 5.55 | 5.55 | 5.37 | 5.42 | 5.42 | -2.17% | 595,658 |
| Jan 27, 2026 | 5.25 | 5.65 | 5.25 | 5.54 | 5.54 | 5.93% | 864,027 |
| Jan 26, 2026 | 5.16 | 5.31 | 5.05 | 5.23 | 5.23 | 0.77% | 620,218 |
| Jan 23, 2026 | 5.21 | 5.43 | 5.09 | 5.19 | 5.19 | -0.57% | 1,255,950 |
| Jan 22, 2026 | 5.01 | 5.39 | 4.97 | 5.22 | 5.22 | 4.61% | 957,271 |
| Jan 21, 2026 | 4.74 | 5.13 | 4.74 | 4.99 | 4.99 | 5.05% | 1,191,911 |
| Jan 20, 2026 | 4.52 | 4.83 | 4.39 | 4.75 | 4.75 | 2.59% | 1,020,030 |
| Jan 16, 2026 | 4.39 | 4.74 | 4.22 | 4.63 | 4.63 | 4.99% | 1,634,445 |
| Jan 15, 2026 | 4.28 | 4.45 | 4.20 | 4.41 | 4.41 | 4.01% | 834,972 |
| Jan 14, 2026 | 4.14 | 4.30 | 4.08 | 4.24 | 4.24 | 2.42% | 593,671 |
| Jan 13, 2026 | 4.15 | 4.16 | 3.96 | 4.14 | 4.14 | 0.24% | 517,836 |
| Jan 12, 2026 | 4.07 | 4.19 | 3.95 | 4.13 | 4.13 | 0.49% | 616,918 |
| Jan 9, 2026 | 4.24 | 4.33 | 4.01 | 4.11 | 4.11 | -1.67% | 643,442 |
| Jan 8, 2026 | 4.11 | 4.20 | 4.05 | 4.18 | 4.18 | 0.48% | 548,579 |
| Jan 7, 2026 | 4.08 | 4.27 | 4.06 | 4.16 | 4.16 | 2.46% | 882,540 |
| Jan 6, 2026 | 4.25 | 4.31 | 4.02 | 4.06 | 4.06 | -4.25% | 1,114,807 |
| Jan 5, 2026 | 4.70 | 4.76 | 4.14 | 4.24 | 4.24 | -9.21% | 1,210,906 |
| Jan 2, 2026 | 5.12 | 5.21 | 4.65 | 4.67 | 4.67 | -9.85% | 1,116,430 |
| Dec 31, 2025 | 5.17 | 5.26 | 5.11 | 5.18 | 5.18 | 0.58% | 554,173 |
| Dec 30, 2025 | 5.16 | 5.26 | 5.04 | 5.15 | 5.15 | -0.39% | 486,475 |
| Dec 29, 2025 | 5.26 | 5.31 | 5.13 | 5.17 | 5.17 | -2.64% | 418,150 |
| Dec 26, 2025 | 5.28 | 5.33 | 5.10 | 5.31 | 5.31 | 0.57% | 508,763 |
| Dec 24, 2025 | 5.05 | 5.35 | 4.98 | 5.28 | 5.28 | 4.55% | 401,062 |
| Dec 23, 2025 | 5.50 | 5.50 | 5.01 | 5.05 | 5.05 | -8.84% | 1,080,598 |
| Dec 22, 2025 | 4.94 | 5.75 | 4.90 | 5.54 | 5.54 | 11.69% | 1,455,473 |
| Dec 19, 2025 | 5.02 | 5.12 | 4.93 | 4.96 | 4.96 | -1.00% | 822,772 |
| Dec 18, 2025 | 5.27 | 5.68 | 5.00 | 5.01 | 5.01 | -4.57% | 1,768,138 |
| Dec 17, 2025 | 5.38 | 5.43 | 5.14 | 5.25 | 5.25 | -1.13% | 2,225,828 |
| Dec 16, 2025 | 3.95 | 5.42 | 3.94 | 5.31 | 5.31 | 33.08% | 8,519,562 |
| Dec 15, 2025 | 4.62 | 4.70 | 3.97 | 3.99 | 3.99 | -12.11% | 2,817,524 |
| Dec 12, 2025 | 4.59 | 4.91 | 4.51 | 4.54 | 4.54 | -1.09% | 1,301,542 |
| Dec 11, 2025 | 4.81 | 4.84 | 4.57 | 4.59 | 4.59 | -4.18% | 1,136,359 |
| Dec 10, 2025 | 4.77 | 4.81 | 4.68 | 4.79 | 4.79 | - | 838,365 |
| Dec 9, 2025 | 4.94 | 4.99 | 4.78 | 4.79 | 4.79 | -3.23% | 1,705,954 |
| Dec 8, 2025 | 4.75 | 5.04 | 4.75 | 4.95 | 4.95 | 5.32% | 1,267,147 |
| Dec 5, 2025 | 4.88 | 4.98 | 4.67 | 4.70 | 4.70 | -3.69% | 822,470 |
| Dec 4, 2025 | 4.89 | 5.02 | 4.81 | 4.88 | 4.88 | 0.21% | 895,135 |
| Dec 3, 2025 | 4.97 | 5.05 | 4.71 | 4.87 | 4.87 | - | 1,496,340 |
| Dec 2, 2025 | 5.22 | 5.25 | 4.84 | 4.87 | 4.87 | -7.06% | 1,680,709 |
| Dec 1, 2025 | 5.42 | 5.46 | 5.19 | 5.24 | 5.24 | -4.38% | 917,447 |
| Nov 28, 2025 | 5.60 | 5.68 | 5.45 | 5.48 | 5.48 | -1.97% | 626,822 |
| Nov 26, 2025 | 5.27 | 5.65 | 5.23 | 5.59 | 5.59 | 6.27% | 1,326,674 |
| Nov 25, 2025 | 5.25 | 5.35 | 5.18 | 5.26 | 5.26 | 0.57% | 1,115,820 |