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NASDAQ:ALDX

Aldeyra Therapeutics (ALDX) Stock Price, News & Analysis

Aldeyra Therapeutics logo
$1.17 0.00 (0.00%)
Closing price 10/2/2026 04:00 PM Eastern
Extended Trading
$1.22 +0.05 (+4.27%)
As of 06:11 AM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

About Aldeyra Therapeutics Stock (NASDAQ:ALDX)

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Key Stats

Today's Range
$1.15
▼
$1.31
50-Day Range
$1.16
▼
$1.61
52-Week Range
$1.07
▼
$5.93
Volume
2.27 million shs
Average Volume
1.08 million shs
Market Capitalization
$70.59 million
P/E Ratio
N/A
Dividend Yield
N/A
Price Target
$5.50
Consensus Rating
Hold

Company Overview

Aldeyra Therapeutics, Inc. is a clinical-stage biotechnology company focused on developing therapies for immune-mediated diseases. The company’s research centers on reactive aldehyde species, or RASP, which are inflammatory mediators that can contribute to tissue damage and disease progression.

Aldeyra’s lead investigational product is reproxalap, a small-molecule RASP inhibitor being developed for ocular conditions, including dry eye disease and allergic conjunctivitis. The company has also developed ADX-2191, an investigational intravitreal formulation of methotrexate intended for the treatment of certain rare retinal diseases, including proliferative vitreoretinopathy and retinitis pigmentosa.

Founded in 2008 and headquartered in Lexington, Massachusetts, Aldeyra conducts its research and clinical development activities primarily in the United States. The company is led by Todd C. Brady, M.D., Ph.D., who has served as its president and chief executive officer and is among its founders.

AI Generated. May Contain Errors.

Aldeyra Therapeutics Stock Analysis - MarketRank™

See Top-Rated MarketRank™ Stocks
40th Percentile Overall Score

ALDX MarketRank™: 

Aldeyra Therapeutics scored higher than 40% of companies evaluated by MarketBeat, and ranked 634th out of 888 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation.

  • Consensus Rating

    Aldeyra Therapeutics has received a consensus rating of Hold. The company's average rating score is 2.00, and is based on no strong buy ratings, 1 buy rating, 1 hold rating, and 1 sell rating.

  • Upside Potential

    Aldeyra Therapeutics has a consensus price target of $5.50, representing about 370.1% upside from its current price of $1.17.

  • Amount of Analyst Coverage

    Aldeyra Therapeutics has only been the subject of 3 research reports in the past 90 days.

  • Read more about Aldeyra Therapeutics' stock forecast and price target.
  • Earnings Growth

    Earnings for Aldeyra Therapeutics are expected to grow in the coming year, from ($0.39) to ($0.16) per share.

  • Price to Earnings Ratio vs. the Market

    The P/E ratio of Aldeyra Therapeutics is -3.00, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

  • Price to Earnings Ratio vs. Sector

    The P/E ratio of Aldeyra Therapeutics is -3.00, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.

  • Price to Book Value per Share Ratio

    Aldeyra Therapeutics has a P/B Ratio of 1.58. P/B Ratios below 3 indicates that a company is reasonably valued with respect to its assets and liabilities.

  • Read more about Aldeyra Therapeutics' valuation and earnings.
  • Percentage of Shares Shorted

    6.77% of the float of Aldeyra Therapeutics has been sold short.
  • Short Interest Ratio / Days to Cover

    Aldeyra Therapeutics has a short interest ratio ("days to cover") of 4.88.
  • Change versus previous month

    Short interest in Aldeyra Therapeutics has recently increased by 15.46%, indicating that investor sentiment is decreasing significantly.
  • Dividend Yield

    Aldeyra Therapeutics does not currently pay a dividend.

  • Dividend Growth

    Aldeyra Therapeutics does not have a long track record of dividend growth.

  • News Sentiment

    Aldeyra Therapeutics has a news sentiment score of -0.06. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.44 average news sentiment score of Healthcare companies.
  • News Coverage This Week

    MarketBeat has tracked 14 news articles for Aldeyra Therapeutics this week, compared to 6 articles on an average week.
  • Search Interest

    Only 1 people have searched for ALDX on MarketBeat in the last 30 days. This is a decrease of 0% compared to the previous 30 days.
  • MarketBeat Follows

    1 people have added Aldeyra Therapeutics to their MarketBeat watchlist in the last 30 days.
  • Insider Buying vs. Insider Selling

    In the past three months, Aldeyra Therapeutics insiders have not sold or bought any company stock.

  • Percentage Held by Insiders

    11.80% of the stock of Aldeyra Therapeutics is held by insiders. A high percentage of insider ownership can be a sign of company health.

  • Percentage Held by Institutions

    59.71% of the stock of Aldeyra Therapeutics is held by institutions. High institutional ownership can be a signal of strong market trust in this company.

  • Read more about Aldeyra Therapeutics' insider trading history.
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ALDX Stock News Headlines

Aldeyra plans FDA dispute request for reproxalap
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See More Headlines

ALDX Stock Analysis - Frequently Asked Questions

Aldeyra Therapeutics' stock was trading at $5.18 at the beginning of 2026. Since then, ALDX shares have decreased by 77.4% and is now trading at $1.17.

Aldeyra Therapeutics, Inc. (NASDAQ:ALDX) posted its earnings results on Thursday, August, 6th. The biotechnology company reported ($0.09) earnings per share (EPS) for the quarter, missing the consensus estimate of ($0.09) by $0.00.

Aldeyra Therapeutics (ALDX) raised $16 million in an initial public offering (IPO) on Friday, April 11th 2014. The company issued 1,500,000 shares at $10.00-$12.00 per share.

Shares of ALDX stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services.

Based on aggregate information from My MarketBeat watchlists, some other companies that Aldeyra Therapeutics investors own include NVIDIA (NVDA), Advanced Micro Devices (AMD), Meta Platforms (META), Tesla (TSLA), Viking Therapeutics (VKTX), Alibaba Group (BABA) and Netflix (NFLX).

Company Calendar

Last Earnings
8/06/2026
Today
10/04/2026
Next Earnings (Estimated)
11/04/2026
Fiscal Year End
12/31/2026

Industry, Sector and Symbol

Stock Exchange
NASDAQ
Industry
Pharmaceuticals
Sub-Industry
Pharmaceuticals
Current Symbol
NASDAQ:ALDX
CIK
1341235
Employees
6
Year Founded
2004

Price Target and Rating

High Price Target
$9.00
Low Price Target
$2.00
Potential Upside/Downside
+370.1%
Consensus Rating
Hold
Rating Score (0-4)
2.00
Research Coverage
3 Analysts

Profitability

EPS (Trailing Twelve Months)
($0.39)
Trailing P/E Ratio
N/A
Forward P/E Ratio
N/A
P/E Growth
N/A
Net Income
-$33.85 million
Net Margins
N/A
Pretax Margin
N/A
Return on Equity
-53.14%
Return on Assets
-34.94%

Debt

Debt-to-Equity Ratio
N/A
Current Ratio
4.91
Quick Ratio
4.91

Sales & Book Value

Annual Sales
N/A
Price / Sales
N/A
Cash Flow
N/A
Price / Cash Flow
N/A
Book Value
$0.74 per share
Price / Book
1.58

Miscellaneous

Outstanding Shares
60,330,000
Free Float
53,208,000
Market Cap
$70.59 million
Optionable
Optionable
Beta
1.21

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This page (NASDAQ:ALDX) was last updated on 10/5/2026 by MarketBeat.com Staff.
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