NASDAQ:ALDX Aldeyra Therapeutics (ALDX) Stock Price, News & Analysis $5.44 -0.09 (-1.63%) Closing price 07/24/2025 04:00 PM EasternExtended Trading$5.44 0.00 (0.00%) As of 07/24/2025 07:57 PM 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 Polygon.io. Learn more. Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock About Aldeyra Therapeutics Stock (NASDAQ:ALDX) 30 days 90 days 365 days Advanced Chart View Price History Chart DataSkip Price History Chart Get Aldeyra Therapeutics alerts:Sign Up Key Stats Today's Range$5.39▼$5.6250-Day Range$2.12▼$5.5352-Week Range$1.14▼$7.20Volume979,812 shsAverage Volume1.29 million shsMarket Capitalization$325.86 millionP/E RatioN/ADividend YieldN/APrice Target$9.50Consensus RatingBuy Company Overview Aldeyra Therapeutics is a clinical-stage biotechnology company focused on the development of novel therapies with the potential to improve the lives of patients with immune-mediated diseases. Two of the company's lead compounds, reproxalap and ADX-629, target reactive aldehyde species (RASP), which are elevated in ocular and systemic inflammatory disease, leading to elevated levels of cytokine release via activation of a broad array of inflammatory factors, including NF-κB, inflammasomes, and Scavenger Receptor A. Reproxalap is being evaluated in Phase 3 clinical trials in patients with dry eye disease and allergic conjunctivitis. The company's clinical pipeline also includes ADX-2191, a dihydrofolate reductase inhibitor in Phase 3 testing for proliferative vitreoretinopathy, and ADX-1612, a chaperome inhibitor in Phase 2 testing for COVID-19 and ovarian cancer. Read More Aldeyra Therapeutics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks52nd Percentile Overall ScoreALDX MarketRank™: Aldeyra Therapeutics scored higher than 52% of companies evaluated by MarketBeat, and ranked 557th out of 922 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion3.5 / 5Analyst RatingBuy Consensus RatingAldeyra Therapeutics has received a consensus rating of Buy. The company's average rating score is 3.00, and is based on 2 buy ratings, no hold ratings, and no sell ratings.Amount of Analyst CoverageAldeyra Therapeutics has only been the subject of 1 research reports in the past 90 days.Read more about Aldeyra Therapeutics' stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Aldeyra Therapeutics are expected to grow in the coming year, from ($0.92) to ($0.17) per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Aldeyra Therapeutics is -5.61, 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. SectorThe P/E ratio of Aldeyra Therapeutics is -5.61, 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 RatioAldeyra Therapeutics has a P/B Ratio of 4.57. P/B Ratios above 3 indicate that a company could be overvalued with respect to its assets and liabilities.Read more about Aldeyra Therapeutics' valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted8.26% of the float of Aldeyra Therapeutics has been sold short.Short Interest Ratio / Days to CoverAldeyra Therapeutics has a short interest ratio ("days to cover") of 3.5, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Aldeyra Therapeutics has recently decreased by 0.45%, indicating that investor sentiment is improving. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAldeyra Therapeutics does not currently pay a dividend.Dividend GrowthAldeyra Therapeutics does not have a long track record of dividend growth. Sustainability and ESGN/AEnvironmental ScoreN/A Percentage of Shares Shorted8.26% of the float of Aldeyra Therapeutics has been sold short.Short Interest Ratio / Days to CoverAldeyra Therapeutics has a short interest ratio ("days to cover") of 3.5, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Aldeyra Therapeutics has recently decreased by 0.45%, indicating that investor sentiment is improving. News and Social Media2.4 / 5News SentimentN/A News SentimentAldeyra Therapeutics has a news sentiment score of 0.39. 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 0.63 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 1 news article for Aldeyra Therapeutics this week, compared to 3 articles on an average week.Search Interest10 people have searched for ALDX on MarketBeat in the last 30 days. This is an increase of 43% compared to the previous 30 days.MarketBeat Follows2 people have added Aldeyra Therapeutics to their MarketBeat watchlist in the last 30 days. Company Ownership0.8 / 5Insider TradingN/A Insider Buying vs. Insider SellingIn the past three months, Aldeyra Therapeutics insiders have not sold or bought any company stock.Percentage Held by InsidersOnly 9.60% of the stock of Aldeyra Therapeutics is held by insiders.Percentage Held by Institutions59.71% 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. Receive ALDX Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Aldeyra Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address ALDX Stock News HeadlinesAldeyra says FDA accepted resubmitted marketing application for lead drugJuly 17, 2025 | msn.comAldeyra Therapeutics Announces FDA Acceptance for Review of Reproxalap New Drug Application for the Treatment of Dry Eye DiseaseJuly 17, 2025 | businesswire.comThe Trump Dump is starting; Get out of stocks now?The first 365 days of the Trump presidency… Will be the best time to get rich in American history. | Paradigm Press (Ad)Aldeyra Therapeutics (ALDX) Upgraded to Strong Buy: What Does It Mean for the Stock?July 15, 2025 | msn.comAldeyra Therapeutics: Pivotal FDA Decision After Reproxalap's Chamber DataJuly 2, 2025 | seekingalpha.comAldeyra stock jumps after FDA agreement on cancer drug trial designJune 26, 2025 | au.investing.comAldeyra Shares Climb on FDA Backing for PVRL Drug Trial DesignJune 26, 2025 | msn.comAldeyra resubmits Reproxalap's marketing application to FDAJune 18, 2025 | msn.comSee More Headlines ALDX Stock Analysis - Frequently Asked Questions How have ALDX shares performed this year? Aldeyra Therapeutics' stock was trading at $4.99 at the beginning of the year. Since then, ALDX shares have increased by 9.0% and is now trading at $5.44. How were Aldeyra Therapeutics' earnings last quarter? Aldeyra Therapeutics, Inc. (NASDAQ:ALDX) released its earnings results on Wednesday, May, 14th. The biotechnology company reported ($0.17) earnings per share for the quarter, topping the consensus estimate of ($0.25) by $0.08. Who are Aldeyra Therapeutics' major shareholders? Aldeyra Therapeutics' top institutional investors include Woodstock Corp (0.45%), PFG Investments LLC (0.43%), Wealth Enhancement Advisory Services LLC (0.05%) and Pallas Capital Advisors LLC (0.03%). Insiders that own company stock include Perceptive Advisors Llc, Todd C Brady, Bruce Greenberg and Nancy Miller-Rich. View institutional ownership trends. How do I buy shares of Aldeyra Therapeutics? 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. What other stocks do shareholders of Aldeyra Therapeutics own? 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 Earnings5/14/2025Today7/25/2025Next Earnings (Estimated)7/30/2025Fiscal Year End12/31/2025Get Stock AlertsIndustry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - DRUGS Sub-IndustryPharmaceutical Products Current SymbolNASDAQ:ALDX CIK1341235 Webwww.ampliphibio.com Phone781-761-4904Fax781-270-0630Employees10Year FoundedN/APrice Target and Rating Average Price Target for Aldeyra Therapeutics$9.50 High Price Target$10.00 Low Price Target$9.00 Potential Upside/Downside+74.6%Consensus RatingBuy Rating Score (0-4)3.00 Research Coverage2 Analysts Profitability EPS (Trailing Twelve Months)($0.97) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income-$55.85 million Net MarginsN/A Pretax MarginN/A Return on Equity-72.58% Return on Assets-52.32% Debt Debt-to-Equity Ratio0.24 Current Ratio6.49 Quick Ratio6.49 Sales & Book Value Annual SalesN/A Price / SalesN/A Cash FlowN/A Price / Cash FlowN/A Book Value$1.19 per share Price / Book4.57Miscellaneous Outstanding Shares59,900,000Free Float54,146,000Market Cap$325.86 million OptionableOptionable Beta0.90 Social Links The Best Nuclear Energy Stocks to BuyNuclear energy stocks are roaring. It's the hottest energy sector of the year. Cameco Corp, Paladin Energy, and BWX Technologies were all up more than 40% in 2024. The biggest market moves could still be ahead of us, and there are seven nuclear energy stocks that could rise much higher in the next several months. To unlock these tickers, enter your email address below.Get This Free Report This page (NASDAQ:ALDX) was last updated on 7/25/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | SponsoredMarket Panic: Trump Just Dropped a Bomb on Your Stockstock Market Panic: Trump Just Dropped a Bomb on Your Stocks The market is in freefall—and Trump's new tarif...American Alternative | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...Stansberry Research | SponsoredPresidential Bombshell: $150T Resource to Be Released as soon as this Summer?Something extraordinary is happening in Washington. For the first time in over a century, a sitting Preside...Paradigm Press | SponsoredTreasury Secretary Bessent Is Betting Big on GoldWhen the U.S. Treasury Secretary’s largest personal investment is gold — that’s a signal. Now a veteran gol...Golden Portfolio | SponsoredYour blueprint for crypto wealthMark August 12th on your calendar. 27 of crypto's most successful minds are about to reveal everything…Crypto 101 Media | SponsoredTrump’s betrayal exposed Trump’s Final Reset Inside the shocking plot to re-engineer America’s financial system…and why you need to ...Porter & Company | SponsoredSpecial gold investment soars 2,300% ... 5,090% ... 9,850%In my 54 years as an investor, I’ve seen my share of gold bull markets. But nothing comes close to the rall...Weiss Ratings | Sponsored Adding Choose a watchlist: Watchlist Adding You have already added ten stocks to your watchlist. Upgrade to MarketBeat All Access to add more stocks to your watchlist. Adding Aldeyra Therapeutics, Inc. Please log in to your account or sign up in order to add this asset to your watchlist. Share Aldeyra Therapeutics With A Colleague Link copied to clipboard. Get 30 Days of MarketBeat All Access for Free Sign up for MarketBeat All Access to gain access to MarketBeat's full suite of research tools. Start Your 30-Day Trial MarketBeat All Access Features Best-in-Class Portfolio Monitoring Get personalized stock ideas. Compare portfolio to indices. Check stock news, ratings, SEC filings, and more. Stock Ideas and Recommendations See daily stock ideas from top analysts. Receive short-term trading ideas from MarketBeat. Identify trending stocks on social media. Advanced Stock Screeners and Research Tools Use our seven stock screeners to find suitable stocks. Stay informed with MarketBeat's real-time news. Export data to Excel for personal analysis. Sign in to your free account to enjoy these benefits In-depth profiles and analysis for 20,000 public companies. Real-time analyst ratings, insider transactions, earnings data, and more. Our daily ratings and market update email newsletter. Sign in to your free account to enjoy all that MarketBeat has to offer. Sign In Create Account Your Email Address: Email Address Required Your Password: Password Required Log In or Sign in with Facebook Sign in with Google Forgot your password? Your Email Address: Please enter your email address. Please enter a valid email address Choose a Password: Please enter your password. Your password must be at least 8 characters long and contain at least 1 number, 1 letter, and 1 special character. Create My Account (Free) or Sign in with Facebook Sign in with Google By creating a free account, you agree to our terms of service. This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.