1.24
price down icon70.69%   -2.99
after-market After Hours: 1.25 0.01 +0.81%
loading
Aldeyra Therapeutics Inc stock is traded at $1.24, with a volume of 51.79M. It is down -70.69% in the last 24 hours and down -75.92% over the past month. Aldeyra Therapeutics Inc is a biotechnology company engaged in developing and commercializing next-generation medicines to improve the lives of patients with immune-mediated and metabolic diseases. The company's product candidate, Reproxalap, is a treatment in late-stage development for dry eye disease and allergic conjunctivitis. In addition, it also has additional product candidates in development for proliferative vitreoretinopathy, primary vitreoretinal lymphoma, and other retinal diseases, autoimmune disease, and cancer. Company products includes ADX248, ADX743, ADX631, ADX246, ADX629, ADX2191.
See More
Previous Close:
$4.23
Open:
$1.12
24h Volume:
51.79M
Relative Volume:
26.85
Market Cap:
$74.63M
Revenue:
-
Net Income/Loss:
$-33.85M
P/E Ratio:
-2.1994
EPS:
-0.5638
Net Cash Flow:
$-33.35M
1W Performance:
-75.25%
1M Performance:
-75.92%
6M Performance:
-74.69%
1Y Performance:
-80.35%
1-Day Range:
Value
$1.07
$1.51
1-Week Range:
Value
$1.07
$5.10
52-Week Range:
Value
$1.07
$6.87

Aldeyra Therapeutics Inc Stock (ALDX) Company Profile

Name
Name
Aldeyra Therapeutics Inc
Name
Phone
781-761-4904
Name
Address
131 HARTWELL AVENUE, LEXINGTON, MA
Name
Employee
8
Name
Twitter
@aldeyraaldx
Name
Next Earnings Date
2025-08-08
Name
Latest SEC Filings
Name
ALDX's Discussions on Twitter

Compare ALDX vs VRTX, REGN, ARGX, ALNY, ONC

Stocks Price Market Cap Revenue Net Income Cash Flow EPS
Biotechnology icon
ALDX
Aldeyra Therapeutics Inc
1.24 254.57M 0 -33.85M -33.35M -0.5638
Biotechnology icon
VRTX
Vertex Pharmaceuticals Inc
462.49 118.41B 12.07B 3.95B 3.19B 15.33
Biotechnology icon
REGN
Regeneron Pharmaceuticals Inc
759.05 80.02B 14.34B 4.50B 3.77B 41.56
Biotechnology icon
ARGX
Argen X Se Adr
706.03 43.52B 4.16B 1.29B 734.26M 19.59
Biotechnology icon
ALNY
Alnylam Pharmaceuticals Inc
320.42 42.29B 3.71B 313.75M 465.38M 2.2571
Biotechnology icon
ONC
Beone Medicines Ltd Adr
287.33 32.13B 5.36B 287.73M 924.18M 2.5229

Aldeyra Therapeutics Inc Stock (ALDX) Upgrades & Downgrades

Date Action Analyst Rating Change
Apr-03-24 Upgrade Oppenheimer Perform → Outperform
Apr-02-24 Resumed H.C. Wainwright Buy
Apr-27-22 Resumed H.C. Wainwright Buy
Feb-08-21 Initiated H.C. Wainwright Buy
Dec-16-20 Initiated Berenberg Buy
Oct-30-20 Initiated Jefferies Buy
Oct-16-20 Initiated BTIG Research Buy
Sep-22-20 Initiated Alliance Global Partners Buy
May-12-20 Initiated Oppenheimer Outperform
Dec-04-18 Initiated Citigroup Buy
Sep-26-18 Reiterated Cantor Fitzgerald Overweight
Sep-13-18 Initiated Janney Buy
Jan-26-18 Initiated Seaport Global Securities Buy
Sep-26-16 Initiated H.C. Wainwright Buy
Jul-01-16 Initiated Stifel Buy
Jul-01-15 Initiated Canaccord Genuity Buy
Mar-25-15 Initiated Chardan Capital Markets Buy
Mar-20-15 Reiterated H.C. Wainwright Buy
Nov-18-14 Initiated H.C. Wainwright Buy
Jun-19-14 Initiated Aegis Capital Buy
View All

Aldeyra Therapeutics Inc Stock (ALDX) Latest News

pulisher
Mar 17, 2026

Aldeyra Therapeutics stock plunges 70% after third FDA rejection - The Business Journals

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics stock maintained at Buy by BTIG after FDA setback - Investing.com

Mar 17, 2026
pulisher
Mar 17, 2026

Third Time Is Not The Charm For Aldeyra - Citeline News & Insights

Mar 17, 2026
pulisher
Mar 17, 2026

$ALDX ALERT: Aldeyra Therapeutics, Inc. Investigated For Securities Fraud; Block & Leviton ... - Bluefield Daily Telegraph

Mar 17, 2026
pulisher
Mar 17, 2026

$ALDX ALERT: Aldeyra Therapeutics, Inc. Investigated For - GlobeNewswire

Mar 17, 2026
pulisher
Mar 17, 2026

$ALDX ALERT: Aldeyra Therapeutics, Inc. Investigated For Securities Fraud; Block & Leviton Encourages Investors Who Have Lost Money to Contact the Firm - GlobeNewswire Inc.

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra plunges as FDA rejects dry eye disease therapy - MSN

Mar 17, 2026
pulisher
Mar 17, 2026

12 Health Care Stocks Moving In Tuesday's Intraday Session - Benzinga

Mar 17, 2026
pulisher
Mar 17, 2026

Lacking Evidence, FDA Rejects Aldeyra Dry Eye Disease Drug - MedCity News

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra receives FDA rejection for dry eye treatment reproxalap - MSN

Mar 17, 2026
pulisher
Mar 17, 2026

Why Aldeyra Therapeutics Stock Just Hit 52-Week LowAldeyra Therapeutics (NASDAQ:ALDX) - Benzinga

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Sees Unusually High Options Volume (NASDAQ:ALDX) - MarketBeat

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra collects third CRL for reproxalap in dry eye disease - BioWorld MedTech

Mar 17, 2026
pulisher
Mar 17, 2026

FDA rejects Aldeyra dry eye disease drug for 3rd time, citing inconsistent study findings - Fierce Biotech

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Shares Plummet Amid Financial Concerns - StocksToTrade

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Receives FDA Complete Response Letter for Reproxalap Dry Eye Disease Treatment, No Additional Trials Required 1 - Minichart

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Shareholders Are Encouraged to Reach - GlobeNewswire

Mar 17, 2026
pulisher
Mar 17, 2026

Third FDA Rejection for Aldeyra’s Dry Eye Disease Drug Sends Shares Plummeting - BioSpace

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics (ALDX) Faces FDA Rejection for Dry Eye Drug - GuruFocus

Mar 17, 2026
pulisher
Mar 17, 2026

Nasdaq Surges Over 100 Points; Academy Sports And Outdoors Posts Downbeat Earnings - Benzinga

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Sees Stock Movement Amid Latest Developments - timothysykes.com

Mar 17, 2026
pulisher
Mar 17, 2026

US FDA declines to approve Aldeyra’s drug for eye disorder - KFGO

Mar 17, 2026
pulisher
Mar 17, 2026

US FDA declines to approve Aldeyra’s eye disorder drug, shares slump - PharmaLive

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra receives third complete response letter for reproxalap - Ophthalmology Times

Mar 17, 2026
pulisher
Mar 17, 2026

FDA rejects Aldeyra’s dry eye disease drug application - Investing.com

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra (ALDX) Faces FDA Setback on Dry Eye Disease Drug Applica - GuruFocus

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics (ALDX) Faces Major Setback as FDA Rejects E - GuruFocus

Mar 17, 2026
pulisher
Mar 17, 2026

US FDA declines to approve Aldeyra's eye disorder drug, shares slump - marketscreener.com

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics Shares Fall as Drug Rejected by Regulator on Efficacy Concerns - marketscreener.com

Mar 17, 2026
pulisher
Mar 17, 2026

Why Did ALDX Stock Tank 75% In Pre-Market Today? - Asianet Newsable

Mar 17, 2026
pulisher
Mar 17, 2026

FDA Issues Second Complete Response Letter for Reproxalap - The American Journal of Managed Care® (AJMC®)

Mar 17, 2026
pulisher
Mar 17, 2026

How Did the FDA Shatter Investor Confidence In Aldeyra Therapeutics Stock (ALDX) Today? - TipRanks

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics shares down 73% premarket after US FDA declines to approve eye disorder drug - marketscreener.com

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra plunges on FDA rejection of lead drug (ALDX:NASDAQ) - Seeking Alpha

Mar 17, 2026
pulisher
Mar 17, 2026

The U.S. Food and Drug Administration (FDA) recently provided key recommendations to Aldeyra Therapeutics Inc, requesting the company to conduct an in-depth analysis of the failures encountered in clinical trials of its ophthalmic drug Reproxalap. - Bitget

Mar 17, 2026
pulisher
Mar 17, 2026

Aldeyra Therapeutics receives FDA complete response letter for reproxalap; $70M runway into 2028 - TradingView

Mar 17, 2026
pulisher
Mar 17, 2026

FDA rejects Aldeyra (NASDAQ: ALDX) reproxalap NDA for dry eye - Stock Titan

Mar 17, 2026
pulisher
Mar 17, 2026

Dry eye drug’s fast-acting promise stalls as FDA questions trial results - Stock Titan

Mar 17, 2026
pulisher
Mar 17, 2026

12 Health Care Stocks Moving In Tuesday's Pre-Market Session - Benzinga

Mar 17, 2026
pulisher
Mar 17, 2026

FDA declines to approve Aldeyra's dry-eye disease drug for third time - FirstWord Pharma

Mar 17, 2026
pulisher
Mar 14, 2026

Aldeyra Therapeutics faces FDA PDUFA date extension - MSN

Mar 14, 2026
pulisher
Mar 14, 2026

Aldeyra Therapeutics (NASDAQ:ALDX) Share Price Crosses Below Two Hundred Day Moving AverageTime to Sell? - MarketBeat

Mar 14, 2026
pulisher
Mar 13, 2026

Aldeyra Awaits FDA Verdict On Dry Eye Drug Reproxalap - RTTNews

Mar 13, 2026
pulisher
Mar 12, 2026

ALDX stock garners retail interest: Investors debate dry eye treatment approval amid long wait - MSN

Mar 12, 2026
pulisher
Mar 12, 2026

Is Aldeyra Therapeutics waving red flags with consequences? - statnews.com

Mar 12, 2026
pulisher
Mar 10, 2026

ALDX Stock Garners Retail Interest: Investors Debate Dry Eye Treatment Approval Amid Long Wait - Stocktwits

Mar 10, 2026
pulisher
Mar 08, 2026

Aldeyra Therapeutics: Investor Attention Shifts to Upcoming Catalysts - AD HOC NEWS

Mar 08, 2026
pulisher
Mar 07, 2026

Movement Recap: Does Aldeyra Therapeutics Inc have a sustainable dividend2025 Trade Ideas & Community Verified Trade Alerts - baoquankhu1.vn

Mar 07, 2026
pulisher
Mar 06, 2026

Aldeyra Therapeutics Inc (ALDX) Stock Price & 30 Year Financial Data - GuruFocus

Mar 06, 2026
pulisher
Mar 06, 2026

HC Wainwright Analysts Boost Earnings Estimates for ALDX - MarketBeat

Mar 06, 2026
pulisher
Mar 05, 2026

Aldeyra Therapeutics (NASDAQ:ALDX) Shares Cross Below 200-Day Moving Average – Here’s What Happened - Defense World

Mar 05, 2026

Aldeyra Therapeutics Inc Stock (ALDX) Financials Data

Revenue

loading

Net Income

loading

Cash Flow

loading

EPS

loading
$46.11
price up icon 0.02%
$28.30
price up icon 0.07%
$53.93
price up icon 1.16%
$94.86
price up icon 4.77%
$143.93
price down icon 0.46%
biotechnology ONC
$287.33
price down icon 0.80%
Cap:     |  Volume (24h):