5.81
price down icon1.19%   -0.07
after-market After Hours: 5.81
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Aldeyra Therapeutics Inc Stock (ALDX) Price History

The historical daily chart and data for Aldeyra Therapeutics Inc stock (ALDX), show that the latest closing stock price as of August 22, 2025, is $5.81.
  • Aldeyra Therapeutics Inc all-time high stock price is $16.70, occurred on September 26, 2018.
  • The lowest Aldeyra Therapeutics Inc stock price recorded was $1.14 on April 03, 2025. Since then, Aldeyra Therapeutics Inc's stock price has risen over 409.65% to $5.81 now.
  • The 52-week high stock price for ALDX is $7.20, representing a 23.92% increase from the current share price, occurred on March 12, 2025.
  • The 52-week low stock price for ALDX is $1.14, indicating a -80.38% decrease from the current share price, occurred on April 03, 2025.
  • The closing price of Aldeyra Therapeutics Inc (ALDX) stock in the beginning of 2024 was $4.27. The stock closed the year at $6.96, a gain of over 63.00% for the year.
The table below shows more information about ALDX historical price data:
Date High Low High - Low Volume % Change
Aug 22, 2025 $6.05 $5.66 $0.39 1,025,991.0 -1.19%
Aug 21, 2025 $5.96 $5.56 $0.4019 882,418.0 +4.44%
Aug 20, 2025 $5.68 $5.50 $0.1753 501,303.0 +0.54%
Aug 19, 2025 $5.73 $5.34 $0.39 1,180,392.0 +2.94%
Aug 18, 2025 $5.65 $5.38 $0.27 738,652.0 +0.93%
Aug 15, 2025 $5.40 $5.25 $0.15 912,262.0 +1.70%
Aug 14, 2025 $5.41 $5.21 $0.205 574,575.0 -1.30%
Aug 13, 2025 $5.49 $5.28 $0.21 868,883.0 +0.19%
Aug 12, 2025 $5.49 $5.27 $0.223 830,529.0 +2.10%
Aug 11, 2025 $5.37 $5.04 $0.33 1,033,216.0 -0.19%
Aug 08, 2025 $5.32 $4.99 $0.325 1,314,007.0 +1.74%
Aug 07, 2025 $5.31 $5.08 $0.23 605,719.0 -0.96%
Aug 06, 2025 $5.29 $5.05 $0.24 711,568.0 +1.16%
Aug 05, 2025 $5.23 $4.99 $0.24 1,274,246.0 +1.57%
Aug 04, 2025 $5.22 $4.80 $0.425 1,040,369.0 +5.61%
Aug 01, 2025 $4.92 $4.23 $0.69 1,511,073.0 -3.61%
Jul 31, 2025 $5.15 $4.94 $0.21 779,710.0 -1.19%
Jul 30, 2025 $5.35 $5.00 $0.3493 964,879.0 -0.79%
Jul 29, 2025 $5.32 $5.02 $0.30 1,210,192.0 -4.32%
Jul 28, 2025 $5.37 $5.12 $0.25 904,722.0 +2.90%
Jul 25, 2025 $5.47 $5.12 $0.345 1,753,610.0 -4.96%
Jul 24, 2025 $5.62 $5.39 $0.23 977,223.0 -1.63%

Aldeyra Therapeutics Inc Stock (ALDX) Year by Year Price History

In this detailed analysis, we present a comprehensive overview of the price movements of Aldeyra Therapeutics Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of ALDX shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Aldeyra Therapeutics Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.

Aldeyra Therapeutics Inc Stock (ALDX) Price History 2025

Month High Low High - Low Volume % Change
Aug, 2025 $6.05 $4.23 $1.82 16,031,194.0 +16.43%
Jul, 2025 $5.66 $3.73 $1.93 25,779,329.0 +30.29%
Jun, 2025 $4.00 $2.08 $1.92 20,123,731.0 +78.14%
May, 2025 $2.89 $1.90 $0.99 24,671,866.0 -18.87%
Apr, 2025 $5.91 $1.14 $4.77 69,625,054.0 -53.91%
Mar, 2025 $7.20 $5.24 $1.96 17,258,451.0 +12.52%
Feb, 2025 $6.92 $4.78 $2.14 8,563,824.0 -2.48%
Jan, 2025 $5.58 $4.66 $0.925 6,716,553.0 +5.01%

Aldeyra Therapeutics Inc Stock (ALDX) Price History 2024

Month High Low High - Low Volume % Change
Dec, 2024 $5.46 $4.67 $0.79 7,855,780.0 +2.45%
Nov, 2024 $5.74 $4.09 $1.65 11,281,906.0 -6.84%
Oct, 2024 $6.17 $5.03 $1.14 8,770,966.0 -2.41%
Sep, 2024 $6.55 $5.26 $1.29 10,395,206.0 -6.34%
Aug, 2024 $5.85 $3.14 $2.71 15,669,018.0 +46.07%
Jul, 2024 $4.39 $3.10 $1.29 5,488,034.0 +19.03%
Jun, 2024 $4.24 $3.14 $1.10 7,821,654.0 -14.25%
May, 2024 $4.38 $3.65 $0.725 6,769,433.0 -2.03%
Apr, 2024 $4.97 $3.13 $1.84 16,957,630.0 +20.49%
Mar, 2024 $4.34 $2.71 $1.63 10,759,703.0 -9.67%
Feb, 2024 $3.85 $3.06 $0.79 7,654,017.0 +15.65%
Jan, 2024 $3.69 $2.96 $0.73 12,074,443.0 -10.83%

Aldeyra Therapeutics Inc Stock (ALDX) Price History 2023

Month High Low High - Low Volume % Change
Dec, 2023 $3.77 $2.69 $1.08 36,297,890.0 +26.71%
Nov, 2023 $2.96 $1.97 $0.99 106,341,071.0 +61.99%
Oct, 2023 $6.74 $1.42 $5.32 47,562,505.0 -74.40%
Sep, 2023 $7.66 $5.95 $1.71 11,474,564.0 -10.46%
Aug, 2023 $8.38 $7.08 $1.30 11,879,646.0 -8.07%
Jul, 2023 $8.46 $7.55 $0.90 12,795,480.0 -3.28%
Jun, 2023 $11.97 $5.47 $6.50 47,889,982.0 -11.59%
May, 2023 $10.81 $9.13 $1.68 14,905,571.0 -0.42%
Apr, 2023 $10.88 $8.96 $1.92 22,091,344.0 -4.03%
Mar, 2023 $10.03 $6.76 $3.27 19,718,669.0 +46.89%
Feb, 2023 $7.49 $5.88 $1.61 8,050,497.0 +14.58%
Jan, 2023 $7.19 $5.75 $1.44 6,888,484.0 -15.23%
$24.65
price up icon 0.94%
$85.04
price down icon 1.72%
$26.20
price up icon 0.73%
$110.88
price up icon 0.10%
$131.88
price down icon 0.54%
biotechnology ONC
$313.67
price down icon 0.10%
Cap:     |  Volume (24h):