NASDAQ:ALDX | Historical Stock Price | Aldeyra Therapeutics, Inc.

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
2014-05-02 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$1.46$2.35$3.77$6.05$9.71$15.592014-05-022026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

View year

Historical Stock Price — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$5.18$5.18554,200
2025-12-30$5.15$5.15507,700
2025-12-29$5.17$5.17418,200
2025-12-26$5.31$5.31508,600
2025-12-24$5.28$5.28419,900
2025-12-23$5.05$5.051,100,100
2025-12-22$5.54$5.541,456,700
2025-12-19$4.96$4.96822,700
2025-12-18$5.01$5.011,768,700
2025-12-17$5.25$5.252,225,800
2025-12-16$5.31$5.318,519,600
2025-12-15$3.99$3.992,817,500
2025-12-12$4.54$4.541,301,500
2025-12-11$4.59$4.591,136,400
2025-12-10$4.79$4.79838,400
2025-12-09$4.79$4.791,706,000
2025-12-08$4.95$4.951,267,100
2025-12-05$4.70$4.70822,500
2025-12-04$4.88$4.88895,100
2025-12-03$4.87$4.871,496,300
2025-12-02$4.87$4.871,680,700
2025-12-01$5.24$5.24917,300
2025-11-28$5.48$5.48626,800
2025-11-26$5.59$5.591,326,700
2025-11-25$5.26$5.261,115,800
2025-11-24$5.23$5.23864,700
2025-11-21$4.96$4.96647,700
2025-11-20$4.73$4.73560,400
2025-11-19$4.86$4.86504,600
2025-11-18$4.91$4.91613,000
2025-11-17$4.95$4.95622,200
2025-11-14$5.05$5.05580,200
2025-11-13$5.02$5.02705,500
2025-11-12$5.30$5.30858,000
2025-11-11$5.23$5.23526,400
2025-11-10$5.13$5.131,084,100
2025-11-07$4.69$4.69644,800
2025-11-06$4.81$4.81626,300
2025-11-05$4.93$4.93370,400
2025-11-04$4.92$4.92558,200
2025-11-03$5.23$5.23639,700
2025-10-31$5.07$5.07568,800
2025-10-30$5.03$5.031,045,800
2025-10-29$5.06$5.06491,600
2025-10-28$5.14$5.141,259,700
2025-10-27$5.23$5.23510,800
2025-10-24$5.24$5.24310,300
2025-10-23$5.18$5.18333,400
2025-10-22$5.19$5.19759,900
2025-10-21$5.51$5.51638,100
2025-10-20$5.44$5.44585,100
2025-10-17$5.26$5.26562,400
2025-10-16$5.39$5.39601,800
2025-10-15$5.66$5.66818,400
2025-10-14$5.34$5.34393,000
2025-10-13$5.25$5.25781,600
2025-10-10$5.39$5.39981,700
2025-10-09$5.67$5.67676,700
2025-10-08$5.62$5.62923,300
2025-10-07$5.61$5.61647,400
2025-10-06$5.51$5.51705,900
2025-10-03$5.74$5.741,030,300
2025-10-02$5.32$5.32410,800
2025-10-01$5.24$5.24411,400
2025-09-30$5.22$5.22398,500
2025-09-29$5.21$5.21501,700
2025-09-26$5.07$5.07590,300
2025-09-25$4.95$4.95421,500
2025-09-24$5.01$5.01558,700
2025-09-23$5.11$5.11672,100
2025-09-22$4.95$4.95860,200
2025-09-19$4.93$4.931,501,100
2025-09-18$5.01$5.01746,500
2025-09-17$4.90$4.90846,500
2025-09-16$4.96$4.96796,500
2025-09-15$5.09$5.091,599,400
2025-09-12$5.39$5.39661,000
2025-09-11$5.56$5.56734,900
2025-09-10$5.54$5.54613,500
2025-09-09$5.76$5.761,012,300
2025-09-08$5.70$5.70673,200
2025-09-05$5.56$5.561,063,000
2025-09-04$5.53$5.531,550,300
2025-09-03$5.83$5.83514,300
2025-09-02$5.75$5.75452,100
2025-08-29$5.84$5.84453,100
2025-08-28$5.86$5.86995,600
2025-08-27$5.85$5.85475,900
2025-08-26$5.89$5.89521,700
2025-08-25$5.77$5.77561,900
2025-08-22$5.81$5.811,026,500
2025-08-21$5.88$5.88884,400
2025-08-20$5.63$5.63501,400
2025-08-19$5.60$5.601,185,100
2025-08-18$5.44$5.44739,000
2025-08-15$5.39$5.39913,400
2025-08-14$5.30$5.30574,600
2025-08-13$5.37$5.37869,000
2025-08-12$5.36$5.36830,500
2025-08-11$5.25$5.251,033,300
2025-08-08$5.26$5.261,314,000
2025-08-07$5.17$5.17606,500
2025-08-06$5.22$5.22715,800
2025-08-05$5.16$5.161,274,500
2025-08-04$5.08$5.081,041,100
2025-08-01$4.81$4.811,511,300
2025-07-31$4.99$4.99780,000
2025-07-30$5.05$5.05966,000
2025-07-29$5.09$5.091,220,600
2025-07-28$5.32$5.32904,700
2025-07-25$5.17$5.171,755,300
2025-07-24$5.44$5.44979,800
2025-07-23$5.53$5.53880,600
2025-07-22$5.36$5.36937,700
2025-07-21$5.39$5.391,436,500
2025-07-18$5.39$5.391,773,500
2025-07-17$5.03$5.031,928,600
2025-07-16$5.16$5.16717,500
2025-07-15$4.97$4.971,175,000
2025-07-14$5.01$5.011,220,600
2025-07-11$4.65$4.651,383,100
2025-07-10$4.80$4.801,410,000
2025-07-09$4.52$4.521,755,000
2025-07-08$4.33$4.331,099,300
2025-07-07$4.35$4.35908,700
2025-07-03$4.30$4.30757,100
2025-07-02$4.00$4.001,504,200
2025-07-01$3.93$3.93922,800
2025-06-30$3.83$3.831,514,100
2025-06-27$3.79$3.792,539,500
2025-06-26$3.87$3.871,958,100
2025-06-25$3.51$3.511,248,100
2025-06-24$3.35$3.35685,200
2025-06-23$3.09$3.09588,400
2025-06-20$3.05$3.05803,000
2025-06-18$3.17$3.17690,600
2025-06-17$3.09$3.09930,000
2025-06-16$3.02$3.021,160,700
2025-06-13$2.78$2.781,184,100
2025-06-12$2.93$2.93744,400
2025-06-11$2.96$2.961,044,000
2025-06-10$2.69$2.69730,100
2025-06-09$2.67$2.67533,300
2025-06-06$2.66$2.66662,100
2025-06-05$2.45$2.45537,000
2025-06-04$2.47$2.47700,300
2025-06-03$2.35$2.35915,700
2025-06-02$2.12$2.121,001,200
2025-05-30$2.15$2.151,280,900
2025-05-29$2.28$2.28598,000
2025-05-28$2.22$2.22412,000
2025-05-27$2.20$2.20692,600
2025-05-23$2.22$2.22705,600
2025-05-22$2.25$2.25520,700
2025-05-21$2.25$2.25835,000
2025-05-20$2.36$2.36783,700
2025-05-19$2.42$2.42875,300
2025-05-16$2.16$2.16809,600
2025-05-15$2.16$2.16518,700
2025-05-14$2.17$2.171,104,200
2025-05-13$2.08$2.081,317,300
2025-05-12$2.21$2.211,161,000
2025-05-09$2.18$2.181,093,400
2025-05-08$2.16$2.161,665,300
2025-05-07$2.01$2.012,244,000
2025-05-06$2.10$2.104,566,500
2025-05-05$2.70$2.701,114,100
2025-05-02$2.81$2.81894,600
2025-05-01$2.71$2.711,718,800
2025-04-30$2.65$2.65750,300
2025-04-29$2.69$2.69997,700
2025-04-28$2.76$2.76911,000
2025-04-25$2.66$2.661,376,200
2025-04-24$2.65$2.651,170,100
2025-04-23$2.42$2.421,060,300
2025-04-22$2.32$2.321,123,900
2025-04-21$2.24$2.241,116,300
2025-04-17$2.19$2.191,882,500
2025-04-16$2.01$2.011,367,400
2025-04-15$2.20$2.202,208,700
2025-04-14$2.12$2.122,120,400
2025-04-11$1.91$1.911,719,600
2025-04-10$1.89$1.891,597,200
2025-04-09$1.94$1.942,863,000
2025-04-08$1.92$1.923,758,500
2025-04-07$1.95$1.954,635,300
2025-04-04$1.89$1.8913,065,500
2025-04-03$1.42$1.4222,268,900
2025-04-02$5.33$5.332,152,900
2025-04-01$5.48$5.482,209,600
2025-03-31$5.75$5.752,968,100
2025-03-28$6.67$6.671,144,400
2025-03-27$6.26$6.261,440,500
2025-03-26$6.30$6.30781,000
2025-03-25$6.68$6.68799,900
2025-03-24$6.61$6.61622,400
2025-03-21$6.58$6.58675,300
2025-03-20$6.72$6.72460,800
2025-03-19$6.58$6.58523,400
2025-03-18$6.67$6.67678,500
2025-03-17$6.31$6.31990,800
2025-03-14$6.91$6.91581,600
2025-03-13$6.81$6.81754,500
2025-03-12$6.98$6.98639,800
2025-03-11$6.92$6.92643,900
2025-03-10$6.62$6.62747,000
2025-03-07$6.35$6.35569,200
2025-03-06$6.29$6.29480,400
2025-03-05$6.15$6.15521,100
2025-03-04$6.17$6.17902,700
2025-03-03$6.06$6.061,407,900
2025-02-28$5.11$5.111,825,300
2025-02-27$6.34$6.34530,000
2025-02-26$6.59$6.59253,300
2025-02-25$6.50$6.50500,500
2025-02-24$6.50$6.50462,900
2025-02-21$6.69$6.69370,500
2025-02-20$6.72$6.72267,000
2025-02-19$6.78$6.78362,500
2025-02-18$6.61$6.61570,800
2025-02-14$6.49$6.49345,200
2025-02-13$6.47$6.47439,100
2025-02-12$6.03$6.03246,700
2025-02-11$5.94$5.94340,400
2025-02-10$5.99$5.99401,100
2025-02-07$5.93$5.93408,700
2025-02-06$6.00$6.00606,100
2025-02-05$5.71$5.71367,800
2025-02-04$5.35$5.35191,000
2025-02-03$5.17$5.17212,200
2025-01-31$5.24$5.24325,400
2025-01-30$5.40$5.40285,600
2025-01-29$5.18$5.18286,200
2025-01-28$5.23$5.23271,100
2025-01-27$5.03$5.03359,600
2025-01-24$5.12$5.12392,000
2025-01-23$5.03$5.03256,200
2025-01-22$5.03$5.03313,200
2025-01-21$4.89$4.89309,000
2025-01-17$4.84$4.84274,800
2025-01-16$4.78$4.78285,100
2025-01-15$5.03$5.03362,100
2025-01-14$4.70$4.70306,200
2025-01-13$4.77$4.77361,100
2025-01-10$4.94$4.94503,400
2025-01-08$5.11$5.11285,200
2025-01-07$5.11$5.11387,600
2025-01-06$5.27$5.27365,300
2025-01-03$5.45$5.45427,900
2025-01-02$5.22$5.22463,500