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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 November 03, 2025, is $5.1681.
  • 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 353.34% to $5.1681 now.
  • The 52-week high stock price for ALDX is $7.20, representing a 39.32% increase from the current share price, occurred on March 12, 2025.
  • The 52-week low stock price for ALDX is $1.14, indicating a -77.94% 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
Nov 03, 2025 $5.21 $5.04 $0.175 366,636.0 +2.07%
Oct 31, 2025 $5.11 $4.85 $0.26 568,766.0 +0.80%
Oct 30, 2025 $5.15 $4.89 $0.255 1,044,477.0 -0.49%
Oct 29, 2025 $5.22 $5.00 $0.225 491,361.0 -1.65%
Oct 28, 2025 $5.35 $4.70 $0.654 1,258,184.0 -1.72%
Oct 27, 2025 $5.40 $5.18 $0.22 510,599.0 -0.19%
Oct 24, 2025 $5.29 $5.18 $0.105 309,178.0 +1.16%
Oct 23, 2025 $5.26 $5.11 $0.15 333,402.0 -0.19%
Oct 22, 2025 $5.52 $5.06 $0.46 756,083.0 -5.81%
Oct 21, 2025 $5.55 $5.24 $0.31 635,804.0 +1.29%
Oct 20, 2025 $5.46 $5.26 $0.20 585,050.0 +3.42%
Oct 17, 2025 $5.44 $5.24 $0.20 562,307.0 -2.41%
Oct 16, 2025 $5.79 $5.39 $0.40 600,775.0 -4.77%
Oct 15, 2025 $5.68 $5.34 $0.34 817,481.0 +5.99%
Oct 14, 2025 $5.36 $5.12 $0.24 392,208.0 +1.71%
Oct 13, 2025 $5.47 $5.12 $0.35 780,925.0 -2.60%
Oct 10, 2025 $5.71 $5.36 $0.35 980,024.0 -4.94%
Oct 09, 2025 $5.78 $5.64 $0.14 676,678.0 +0.89%
Oct 08, 2025 $5.77 $5.45 $0.319 923,254.0 +0.18%
Oct 07, 2025 $5.66 $5.44 $0.22 647,308.0 +1.81%
Oct 06, 2025 $5.78 $5.37 $0.415 705,219.0 -4.01%

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
Nov, 2025 $5.21 $5.04 $0.175 366,636.0 +2.07%
Oct, 2025 $5.79 $4.70 $1.09 15,427,522.0 -2.87%
Sep, 2025 $5.93 $4.78 $1.15 16,764,394.0 -10.62%
Aug, 2025 $6.17 $4.23 $1.94 18,012,006.0 +17.03%
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%
$37.49
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$28.64
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$100.80
price up icon 8.05%
$104.06
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biotechnology ONC
$312.04
price up icon 0.52%
$183.82
price down icon 3.02%
Cap:     |  Volume (24h):