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Aldeyra Therapeutics, Inc. (ALDX)

Healthcare | Biotechnology | Lexington, United States | NasdaqCM
1.49 USD -0.05 (-3.571%) ⇩ (Aug. 28, 2026, 4 p.m. EDT)
After hours: 1.62 +0.13 (9.084%) ⇧ (Aug. 28, 2026, 7:30 p.m. EDT)

Short-term:★⯪☆☆☆Long-term:★⯪☆☆☆Dividends:☆☆☆☆☆
Hot Take | Aug. 22, 2026, 4:31 a.m. EDT

The investment case here is defined by a stark disconnect between the company's precarious financial reality and the speculative hopes pinned on a single drug candidate. Fundamentally, this is a distressed biotech play: the company is burning through cash with negative free cash flow, negative operating cash flow, and negative returns on both assets and equity. The balance sheet is fragile, with cash reserves insufficient to sustain operations without further dilution or capital raises. While insiders have recently purchased shares, signaling some confidence in the long-term thesis, the market has largely punished the stock with a multi-year decline, trading at a fraction of its historical value. The short-term outlook remains murky due to the upcoming earnings report, which will likely exacerbate the pressure given the negative earnings estimates. The statistical forecasting models offer no directional guidance, reflecting the high noise-to-signal ratio typical of small-cap bioteics near catalyst events. However, the options chain tells a story of asymmetric risk: traders are betting on a potential 3x to 5x move if the drug data comes in positive, while accepting the risk of further downside if the trial fails or regulatory hurdles persist. For a traditional investor, the lack of dividends, negative growth, and high risk profile make this a poor holding. It is suitable only for high-risk capital willing to gamble on a clinical success story.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoTheta ✓0.099405
AutoETS0.099694
MSTL0.100475
AutoARIMA0.115066

Forecast horizon: 45 days | Selected: AutoTheta

Forecast Reliability
Score 37%
H-stat 1.81
Ljung-Box p 0.000
Jarque-Bera p 0.182
Excess Kurtosis -0.60
Attribute Value
Sector Healthcare
Debt to Equity Ratio 0.379
Market Cap 89,584,736
Forward P/E -5.40
Beta 1.20
Website https://www.aldeyra.com

As of Aug. 22, 2026, 4:31 a.m. EDT: Speculators are positioning for a binary event rather than steady appreciation. Call volume is heavily skewed toward out-of-the-money strikes (3.0 and 5.0) expiring in late 2026 and early 2027, suggesting a hope for a massive price surge to validate drug approval prospects. Conversely, put writing is concentrated at lower strikes (0.5 and 1.0) with significant open interest, indicating a floor is expected around current lows. The implied volatility is extremely low (under 2%) for most expirations, reflecting a market that has priced in stagnation or a specific 'all-or-nothing' catalyst, while the ATM IV spike on the nearest expiration suggests immediate uncertainty surrounding the upcoming earnings date.


Info Dump

Attribute Value
52 Week Change -0.7321739
Address1 131 Hartwell Avenue
Address2 Suite 320
All Time High 16.7
All Time Low 1.07
Ask 1.92
Ask Size 2
Audit Risk 9
Average Analyst Rating 1.5 - Strong Buy
Average Daily Volume10 Day 708,170
Average Daily Volume3 Month 1,325,266
Average Volume 1,325,266
Average Volume10Days 708,170
Beta 1.198
Bid 1.12
Bid Size 2
Board Risk 8
Book Value 0.628
City Lexington
Compensation As Of Epoch Date 1,767,139,200
Compensation Risk 7
Country United States
Crypto Tradeable 0
Currency USD
Current Price 1.485
Current Ratio 4.907
Custom Price Alert Confidence HIGH
Date Short Interest 1,786,665,600
Day High 1.56
Day Low 1.48
Debt To Equity 0.379
Display Name Aldeyra Therapeutics
Earnings Timestamp End 1,793,822,400
Earnings Timestamp Start 1,793,822,400
Ebitda -23,800,336
Ebitda Margins 0.0
Enterprise To Ebitda -1.876
Enterprise Value 44,638,396
Eps Current Year -0.34
Eps Forward -0.275
Eps Trailing Twelve Months -0.36
Esg Populated 0
Exchange NCM
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fax 339 674 6495
Fifty Day Average 1.7569
Fifty Day Average Change -0.27189994
Fifty Day Average Change Percent -0.1547612
Fifty Two Week Change Percent -73.21739
Fifty Two Week High 5.93
Fifty Two Week High Change -4.4449997
Fifty Two Week High Change Percent -0.74957836
Fifty Two Week Low 1.07
Fifty Two Week Low Change 0.41499996
Fifty Two Week Low Change Percent 0.3878504
Fifty Two Week Range 1.07 - 5.93
Financial Currency USD
First Trade Date Milliseconds 1,399,037,400,000
Float Shares 48,948,858
Forward Eps -0.275
Forward P E -5.4
Free Cashflow -15,617,225
Full Exchange Name NasdaqCM
Full Time Employees 6
Fullday Change -0.0549999
Fullday Change Percent -3.57143
Fullday Price 1.6199
Gmt Off Set Milliseconds -14,400,000
Governance Epoch Date 1,785,542,400
Gross Margins 0.0
Has Pre Post Market Data 1
Held Percent Insiders 0.03597
Held Percent Institutions 0.61614
Implied Shares Outstanding 60,326,421
Industry Biotechnology
Industry Disp Biotechnology
Industry Key biotechnology
Is Earnings Date Estimate 1
Language en-US
Last Fiscal Year End 1,767,139,200
Long Business Summary 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.
Long Name Aldeyra Therapeutics, Inc.
Market us_market
Market Cap 89,584,736
Market State CLOSED
Max Age 86,400
Message Board Id finmb_47399863
Most Recent Quarter 1,782,777,600
Net Income To Common -23,052,740
Next Fiscal Year End 1,798,675,200
Non Diluted Market Cap 93,505,952
Number Of Analyst Opinions 5
Open 1.52
Operating Cashflow -22,020,272
Operating Margins 0.0
Overall Risk 8
Payout Ratio 0.0
Phone 781 761 4904
Post Market Change 0.13489997
Post Market Change Percent 9.084173
Post Market Price 1.6199
Post Market Time 1,787,959,813
Previous Close 1.54
Price Eps Current Year -4.367647
Price Hint 4
Price To Book 2.3646495
Profit Margins 0.0
Quick Ratio 4.67
Quote Source Name Nasdaq Real Time Price
Quote Type EQUITY
Recommendation Key strong_buy
Recommendation Mean 1.5
Region US
Regular Market Change -0.0549999
Regular Market Change Percent -3.57143
Regular Market Day High 1.56
Regular Market Day Low 1.48
Regular Market Day Range 1.48 - 1.56
Regular Market Open 1.52
Regular Market Previous Close 1.54
Regular Market Price 1.485
Regular Market Time 1,787,947,201
Regular Market Volume 547,971
Return On Assets -0.22704001
Return On Equity -0.49483
Sand P52 Week Change 0.20504117
Sector Healthcare
Sector Disp Healthcare
Sector Key healthcare
Share Holder Rights Risk 8
Shares Outstanding 60,326,421
Shares Percent Shares Out 0.0551
Shares Short 3,324,554
Shares Short Previous Month Date 1,784,073,600
Shares Short Prior Month 3,594,821
Short Name Aldeyra Therapeutics, Inc.
Short Percent Of Float 0.056900002
Short Ratio 3.3
Source Interval 15
State MA
Symbol ALDX
Target High Price 13.0
Target Low Price 2.0
Target Mean Price 6.6
Target Median Price 5.0
Total Cash 45,089,784
Total Cash Per Share 0.747
Total Debt 143,447
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Eps -0.36
Trailing Peg Ratio None
Triggerable 1
Two Hundred Day Average 3.126125
Two Hundred Day Average Change -1.6411251
Two Hundred Day Average Change Percent -0.524971
Type Disp Equity
Volume 547,971
Website https://www.aldeyra.com
Zip 2,421