Aldeyra Therapeutics, Inc. (ALDX)
NASDAQ: ALDX · Real-Time Price · USD
1.570
-0.010 (-0.63%)
Apr 28, 2026, 4:00 PM EDT - Market closed
Aldeyra Therapeutics Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Apr 28, 2026 | 1.57 | 1.62 | 1.56 | 1.57 | 1.57 | -0.63% | 726,340 |
| Apr 27, 2026 | 1.54 | 1.60 | 1.52 | 1.58 | 1.58 | 1.94% | 1,198,234 |
| Apr 24, 2026 | 1.58 | 1.59 | 1.51 | 1.55 | 1.55 | -3.13% | 1,481,770 |
| Apr 23, 2026 | 1.70 | 1.70 | 1.57 | 1.60 | 1.60 | -5.88% | 1,510,644 |
| Apr 22, 2026 | 1.68 | 1.71 | 1.65 | 1.70 | 1.70 | 1.19% | 1,079,913 |
| Apr 21, 2026 | 1.79 | 1.84 | 1.67 | 1.68 | 1.68 | -5.62% | 1,583,120 |
| Apr 20, 2026 | 1.79 | 1.82 | 1.75 | 1.78 | 1.78 | -1.11% | 980,795 |
| Apr 17, 2026 | 1.81 | 1.86 | 1.79 | 1.80 | 1.80 | - | 1,303,764 |
| Apr 16, 2026 | 1.82 | 1.83 | 1.71 | 1.80 | 1.80 | -1.64% | 1,309,601 |
| Apr 15, 2026 | 1.80 | 1.87 | 1.77 | 1.83 | 1.83 | 2.23% | 1,825,261 |
| Apr 14, 2026 | 1.80 | 1.89 | 1.75 | 1.79 | 1.79 | -0.56% | 2,031,998 |
| Apr 13, 2026 | 1.72 | 1.84 | 1.70 | 1.80 | 1.80 | 1.12% | 1,489,107 |
| Apr 10, 2026 | 1.60 | 1.81 | 1.60 | 1.78 | 1.78 | 11.95% | 2,256,943 |
| Apr 9, 2026 | 1.57 | 1.63 | 1.52 | 1.59 | 1.59 | 1.27% | 2,649,052 |
| Apr 8, 2026 | 1.59 | 1.62 | 1.55 | 1.57 | 1.57 | 3.29% | 1,333,567 |
| Apr 7, 2026 | 1.51 | 1.56 | 1.48 | 1.52 | 1.52 | -1.30% | 1,303,556 |
| Apr 6, 2026 | 1.66 | 1.66 | 1.52 | 1.54 | 1.54 | -7.23% | 2,049,474 |
| Apr 2, 2026 | 1.69 | 1.72 | 1.63 | 1.66 | 1.66 | -1.19% | 1,820,469 |
| Apr 1, 2026 | 1.71 | 1.87 | 1.68 | 1.68 | 1.68 | -0.59% | 4,706,033 |
| Mar 31, 2026 | 1.73 | 1.81 | 1.67 | 1.69 | 1.69 | 0.60% | 2,395,440 |
| Mar 30, 2026 | 1.76 | 1.78 | 1.68 | 1.68 | 1.68 | -5.08% | 1,900,482 |
| Mar 27, 2026 | 1.81 | 1.84 | 1.76 | 1.77 | 1.77 | -3.80% | 2,608,689 |
| Mar 26, 2026 | 1.81 | 1.88 | 1.73 | 1.84 | 1.84 | -0.54% | 2,979,778 |
| Mar 25, 2026 | 1.98 | 2.02 | 1.76 | 1.85 | 1.85 | -1.07% | 4,540,654 |
| Mar 24, 2026 | 2.25 | 2.33 | 1.86 | 1.87 | 1.87 | -16.14% | 7,333,281 |
| Mar 23, 2026 | 1.88 | 2.32 | 1.83 | 2.23 | 2.23 | 23.20% | 7,071,638 |
| Mar 20, 2026 | 1.93 | 2.03 | 1.79 | 1.81 | 1.81 | -1.09% | 10,645,121 |
| Mar 19, 2026 | 1.39 | 1.85 | 1.37 | 1.83 | 1.83 | 28.87% | 12,004,883 |
| Mar 18, 2026 | 1.20 | 1.56 | 1.16 | 1.42 | 1.42 | 14.52% | 16,700,916 |
| Mar 17, 2026 | 1.12 | 1.51 | 1.07 | 1.24 | 1.24 | -70.69% | 52,525,616 |
| Mar 16, 2026 | 4.38 | 4.45 | 4.07 | 4.23 | 4.23 | 2.55% | 3,732,771 |
| Mar 13, 2026 | 4.69 | 4.72 | 4.01 | 4.13 | 4.13 | -11.67% | 3,399,683 |
| Mar 12, 2026 | 4.99 | 4.99 | 4.52 | 4.67 | 4.67 | -5.47% | 2,066,158 |
| Mar 11, 2026 | 5.10 | 5.10 | 4.74 | 4.94 | 4.94 | -1.40% | 1,627,811 |
| Mar 10, 2026 | 5.35 | 5.60 | 4.98 | 5.01 | 5.01 | -4.75% | 1,610,445 |
| Mar 9, 2026 | 4.80 | 5.30 | 4.75 | 5.26 | 5.26 | 9.58% | 1,376,578 |
| Mar 6, 2026 | 4.60 | 4.88 | 4.41 | 4.80 | 4.80 | 3.23% | 1,215,734 |
| Mar 5, 2026 | 5.12 | 5.12 | 4.37 | 4.65 | 4.65 | -10.49% | 2,609,190 |
| Mar 4, 2026 | 5.18 | 5.40 | 5.15 | 5.20 | 5.20 | 1.66% | 765,482 |
| Mar 3, 2026 | 5.50 | 5.52 | 5.06 | 5.11 | 5.11 | -9.07% | 871,611 |
| Mar 2, 2026 | 5.40 | 5.74 | 5.32 | 5.62 | 5.62 | 2.93% | 881,413 |
| Feb 27, 2026 | 5.46 | 5.50 | 5.31 | 5.46 | 5.46 | -0.73% | 1,016,249 |
| Feb 26, 2026 | 5.47 | 5.54 | 5.35 | 5.50 | 5.50 | 0.18% | 939,722 |
| Feb 25, 2026 | 5.24 | 5.62 | 5.21 | 5.49 | 5.49 | 5.37% | 1,267,217 |
| Feb 24, 2026 | 4.97 | 5.34 | 4.96 | 5.21 | 5.21 | 4.41% | 1,045,646 |
| Feb 23, 2026 | 4.91 | 5.10 | 4.85 | 4.99 | 4.99 | 0.81% | 436,485 |
| Feb 20, 2026 | 5.02 | 5.08 | 4.91 | 4.95 | 4.95 | -2.56% | 483,370 |
| Feb 19, 2026 | 5.01 | 5.13 | 4.92 | 5.08 | 5.08 | 1.20% | 727,074 |
| Feb 18, 2026 | 5.15 | 5.19 | 4.91 | 5.02 | 5.02 | -2.52% | 660,070 |
| Feb 17, 2026 | 5.24 | 5.35 | 5.13 | 5.15 | 5.15 | -2.46% | 599,399 |
| Feb 13, 2026 | 5.29 | 5.44 | 5.15 | 5.28 | 5.28 | 0.57% | 831,703 |
| Feb 12, 2026 | 5.35 | 5.56 | 5.16 | 5.25 | 5.25 | -1.32% | 1,067,851 |
| Feb 11, 2026 | 5.50 | 5.52 | 5.28 | 5.32 | 5.32 | -2.92% | 910,701 |
| Feb 10, 2026 | 5.57 | 5.67 | 5.45 | 5.48 | 5.48 | -1.44% | 588,434 |
| Feb 9, 2026 | 5.53 | 5.66 | 5.41 | 5.56 | 5.56 | 0.54% | 365,196 |
| Feb 6, 2026 | 5.21 | 5.61 | 5.15 | 5.53 | 5.53 | 8.64% | 974,062 |
| Feb 5, 2026 | 5.19 | 5.44 | 5.08 | 5.09 | 5.09 | -2.49% | 607,476 |
| Feb 4, 2026 | 5.45 | 5.48 | 4.92 | 5.22 | 5.22 | -3.51% | 935,781 |
| Feb 3, 2026 | 5.45 | 5.60 | 5.31 | 5.41 | 5.41 | -0.37% | 556,486 |
| Feb 2, 2026 | 5.32 | 5.59 | 5.25 | 5.43 | 5.43 | 1.31% | 355,991 |
| Jan 30, 2026 | 5.45 | 5.93 | 5.27 | 5.36 | 5.36 | 0.75% | 742,864 |
| Jan 29, 2026 | 5.42 | 5.44 | 5.23 | 5.32 | 5.32 | -1.85% | 525,360 |
| Jan 28, 2026 | 5.55 | 5.55 | 5.37 | 5.42 | 5.42 | -2.17% | 595,851 |
| Jan 27, 2026 | 5.25 | 5.65 | 5.25 | 5.54 | 5.54 | 5.93% | 865,517 |
| Jan 26, 2026 | 5.16 | 5.31 | 5.05 | 5.23 | 5.23 | 0.77% | 620,338 |
| Jan 23, 2026 | 5.21 | 5.43 | 5.09 | 5.19 | 5.19 | -0.57% | 1,256,130 |
| Jan 22, 2026 | 5.01 | 5.39 | 4.97 | 5.22 | 5.22 | 4.61% | 958,418 |
| Jan 21, 2026 | 4.74 | 5.13 | 4.74 | 4.99 | 4.99 | 5.05% | 1,192,854 |
| Jan 20, 2026 | 4.52 | 4.83 | 4.39 | 4.75 | 4.75 | 2.59% | 1,020,051 |
| Jan 16, 2026 | 4.39 | 4.74 | 4.22 | 4.63 | 4.63 | 4.99% | 1,634,892 |
| Jan 15, 2026 | 4.28 | 4.45 | 4.20 | 4.41 | 4.41 | 4.01% | 835,656 |
| Jan 14, 2026 | 4.14 | 4.30 | 4.08 | 4.24 | 4.24 | 2.42% | 593,911 |
| Jan 13, 2026 | 4.15 | 4.16 | 3.96 | 4.14 | 4.14 | 0.24% | 527,608 |
| Jan 12, 2026 | 4.07 | 4.19 | 3.95 | 4.13 | 4.13 | 0.49% | 617,506 |
| Jan 9, 2026 | 4.24 | 4.33 | 4.01 | 4.11 | 4.11 | -1.67% | 643,792 |
| Jan 8, 2026 | 4.11 | 4.20 | 4.05 | 4.18 | 4.18 | 0.48% | 548,795 |
| Jan 7, 2026 | 4.08 | 4.27 | 4.06 | 4.16 | 4.16 | 2.46% | 883,366 |
| Jan 6, 2026 | 4.25 | 4.31 | 4.02 | 4.06 | 4.06 | -4.25% | 1,118,426 |
| Jan 5, 2026 | 4.70 | 4.76 | 4.14 | 4.24 | 4.24 | -9.21% | 1,213,800 |
| Jan 2, 2026 | 5.12 | 5.21 | 4.65 | 4.67 | 4.67 | -9.85% | 1,116,654 |
| 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% | 507,740 |
| Dec 29, 2025 | 5.26 | 5.31 | 5.13 | 5.17 | 5.17 | -2.64% | 418,181 |
| Dec 26, 2025 | 5.28 | 5.33 | 5.10 | 5.31 | 5.31 | 0.57% | 508,826 |
| Dec 24, 2025 | 5.05 | 5.35 | 4.98 | 5.28 | 5.28 | 4.55% | 419,907 |
| Dec 23, 2025 | 5.50 | 5.50 | 5.01 | 5.05 | 5.05 | -8.84% | 1,100,086 |
| Dec 22, 2025 | 4.94 | 5.75 | 4.90 | 5.54 | 5.54 | 11.69% | 1,456,746 |
| 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% | 1,768,733 |
| 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 |