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Aldeyra The logo

Aldeyra The (ALDX) Stock Ticker

NASDAQ: ALDX · Healthcare · Biotechnology
$1.21-1.23%
USD · as of 2026-09-27 · market cap $72.7M
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ALDX right now

Options price it to move more than 9 in 10 stocks.
Options expect by Oct 6±19.3%
Options expect by Oct 29±40.0%
Priced in for Nov 4 earnings±43.8%
IV rank (30-day)57% · fair
From Tickr's live models · 2026-09-29. Not investment advice.

Market factors today

Tickr 500 vs S&P 500+0.49%+1.0% MTD
Momentum L/S+1.35%+15.1% MTD
High-beta momo L/S+1.46%+22.2% MTD
Rate sensitivity L/S+1.91%+6.9% MTD
Oil sensitivity L/S-2.54%-5.3% MTD
Unprofitable tech-1.43%+3.7% MTD

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About Aldeyra The

Aldeyra Therapeutics, Inc., a biotechnology company, discovers and develops therapies designed to treat immune-mediated diseases. Its lead product candidate is reproxalap, a reactive aldehyde species (RASP) modulator, which is in Phase III clinical trial for the treatment of dry eye disease and allergic conjunctivitis; and ADX-2191, a dihydrofolate reductase inhibitor for the treatment of primary vitreoretinal lymphoma and retinitis pigmentosa. The company also develops ADX-629, an orally administered RASP modulator that is in Phase 2 clinical trials for the treatment of COVID-19, atopic asthma, psoriasis, and alcohol intoxication. In addition, it develops preclinical RASP platforms, including ADX 248, ADX 246, and other novel RASP modulators for the treatment of various diseases associated with RASP. The company was formerly known as Aldexa Therapeutics, Inc. and changed its name to Aldeyra Therapeutics, Inc. in March 2014. Aldeyra Therapeutics, Inc. was incorporated in 2004 and is based in Lexington, Massachusetts.

ALDX stock facts

Ticker symbolALDX
ExchangeNASDAQ
SectorHealthcare
IndustryBiotechnology
Market cap$72.7M
CEOTodd C. Brady
Employees6
HeadquartersLexington, MA, US
IPO date2014-05-02
Websitewww.aldeyra.com

What you can see for ALDX on Tickr

Live ALDX price chart with overlays, the options chain, implied move, IV rank, options flow and Strategy Lab, financial statements and consensus estimates, analyst ratings, catalysts, news with AI scoring, and an AI chat that has read the ALDX report.

Rankings

Largest Healthcare companiesLargest companies by market cap

FAQ

What is the ticker symbol for Aldeyra The?

The ticker symbol for Aldeyra The is ALDX, listed on the NASDAQ.

What is ALDX?

Aldeyra Therapeutics, Inc., a biotechnology company, discovers and develops therapies designed to treat immune-mediated diseases. Its lead product candidate is reproxalap, a reactive aldehyde species (RASP) modulator, which is in Phase III clinical trial for the treatment of dry eye disease and allergic conjunctivitis; and ADX-2191, a dihydrofolate reductase inhibitor for the treatment of…

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