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ALDX logoAldeyra Therapeutics, Inc.(ALDX)Earnings, Financials & Key Ratios

ALDX•NASDAQ
$1.74
$105M mkt cap·Price updated May 6, 2026
SectorHealthcareIndustryBiotechnologySub-IndustryOphthalmology Therapies and Delivery
AboutAldeyra Therapeutics, Inc., a biotechnology company, develops and commercializes medicines for immune-mediated ocular and systemic diseases. The company's lead product candidate is reproxalap, a reactive aldehyde species (RASP)modulator, which is in Phase III clinical trial for the treatment of dry eye diseases and allergic conjunctivitis. It also develops ADX-629, a first-in-class orally administered RASP modulator that is Phase II clinical trial for psoriasis, asthma, and COVID-19; and ADX-2191, a dihydrofolate reductase inhibitor which is in phase 3 for the prevention of proliferative vitreoretinopathy, and phase II clinical trial for the treatment of retinitis pigmentosa, as well as for treating primary vitreoretinal lymphoma. The company has a license agreement with Madrigal Pharmaceuticals, Inc. for developing ADX-1612, which inhibits the protein chaperome for the treatment of inflammatory diseases. 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.Show more
  • Revenue$0
  • EBITDA-$60M-40.8%
  • Net Income-$56M-48.8%
  • EPS (Diluted)-0.94-46.9%
  • ROE-58.54%-111.1%
  • ROIC-369.42%+11.9%
  • Debt/Equity0.22+64.9%
  • Interest Coverage-31.21-51.0%
Technical→

ALDX Key Insights

Aldeyra Therapeutics, Inc. (ALDX) fundamental analysis — strengths, weaknesses & financial health based on data analysis

✓Strengths

  • ✓Trading at only 1.5x book value

✗Weaknesses

  • ✗Weak Piotroski F-Score: 1/9
  • ✗Weak momentum: RS Rating 2 (bottom 2%)
  • ✗Trading more than 30% below 52-week high
  • ✗Low asset turnover indicates capital-intensive operations

* These insights are generated automatically based on available financial data. Please conduct your own research before making investment decisions.

ALDX Price & Volume

Aldeyra Therapeutics, Inc. (ALDX) stock price & volume — 10-year historical chart

Loading chart...

ALDX Growth Metrics

Aldeyra Therapeutics, Inc. (ALDX) revenue, earnings & EPS growth — 3, 5 & 10-year CAGR

Revenue CAGR

10 Years-
5 Years-
3 Years-
TTM-

Profit CAGR

10 Years-
5 Years-
3 Years-
TTM3.58%

EPS CAGR

10 Years-
5 Years-
3 Years-
TTM2.71%

Return on Capital

10 Years-57.4%
5 Years-41.75%
3 Years-39.46%
Last Year-56.7%

ALDX Recent Earnings

Aldeyra Therapeutics, Inc. (ALDX) EPS & revenue vs analyst estimates — last 4 quarters

Full history →
●Beat EPS 8/12 qtrs (67%)●Beat Revenue 0/12 qtrs (0%)
Q1 2026Latest
Feb 27, 2026
EPS
$0.11
Est $0.14
+21.4%
Revenue
—
Est $5M
Q4 2025
Nov 5, 2025
EPS
$0.13
Est $0.17
+23.5%
Revenue
—
Est $24M
Q3 2025
Aug 7, 2025
EPS
$0.16
Est $0.21
+23.8%
Revenue
—
Q2 2025
May 14, 2025
EPS
$0.17
Est $0.25
+32.0%
Revenue
—
Est $666,670
QuarterDateEPS (Act vs Est)Revenue (Act vs Est)
Q1 2026LatestFeb 27, 2026
$0.11vs $0.14+21.4%
—vs $5M
Q4 2025Nov 5, 2025
$0.13vs $0.17+23.5%
—vs $24M
Q3 2025Aug 7, 2025
$0.16vs $0.21+23.8%
—
Q2 2025May 14, 2025
$0.17vs $0.25+32.0%
—vs $666,670
Based on last 12 quarters of dataView full earnings history →

ALDX Peer Comparison

Aldeyra Therapeutics, Inc. (ALDX) competitors in Ophthalmology Therapies and Delivery — business model, growth, and fundamentals comparison

Select Columns
Stock Universe
Valuation
Growth
Profitability
Financial Health
Dividends & Buybacks
Price Performance
Technical
Fundamentals ($)
Sector-Specific
CompanyMarket CapStock PriceP/E Ratio (TTM)Revenue Growth 1YNet MarginReturn on Equity (ROE)FCF YieldDebt / Equity
OCUL logoOCULOcular Therapeutix, Inc.Direct Competitor2.11B9.71-6.84-18.67%-5.58%-64.55%0.12
KALA logoKALAKALA BIO, Inc.Direct Competitor855.53K0.12-0.02-141.11%-388.29%2.62
HALO logoHALOHalozyme Therapeutics, Inc.Direct Competitor7.81B66.3525.9237.55%22.69%6.49%
SRRK logoSRRKScholar Rock Holding CorporationDirect Competitor5.41B47.07-14.31-145.91%0.44
PRAX logoPRAXPraxis Precision Medicines, Inc.Direct Competitor7.61B337.95-25.07-100%-58.74%0.00
RXST logoRXSTRxSight, Inc.Product Competitor279.79M6.78-7.14-3.89%-36.58%-17.01%0.04
INVA logoINVAInnoviva, Inc.Product Competitor1.91B22.526.8218.52%118.91%46.47%0.23
TARS logoTARSTarsus Pharmaceuticals, Inc.Product Competitor2.76B64.76-40.73146.71%-9.02%-14.19%0.27

Compare ALDX vs Peers

Aldeyra Therapeutics, Inc. (ALDX) vs competitors — business, growth, and fundamentals comparison against the closest industry rivals.

Closest Rival

vs OCUL

Most directly comparable listed peer for ALDX.

Scale Benchmark

vs ABBV

Larger-name benchmark to compare ALDX against a more recognizable public peer.

Peer Set

Compare Top 5

vs OCUL, KALA, HALO, SRRK

ALDX Income Statement

Aldeyra Therapeutics, Inc. (ALDX) annual income statement — 10-year revenue, gross profit & net income history

10Y historyFree accessUpdated daily
Line itemDec'16Dec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24TTM
Sales/Revenue0000000000
Revenue Growth %----------
Cost of Goods Sold037.85K71K96.31K56.22K000064.37K
COGS % of Revenue----------
Gross Profit
-35.79K▲ 0%
-37.85K▼ 5.7%
-71K▼ 87.6%
-96.31K▼ 35.6%
-56.22K▲ 41.6%
0▲ 100.0%
0▲ 0%
0▲ 0%
0▲ 0%
-64.37K▲ 0%
Gross Margin %----------
Gross Profit Growth %-90.61%-5.75%-87.6%-35.64%41.62%100%----
Operating Expenses18.7M22.49M39.7M56.51M34.61M56.22M62.68M42.79M60.12M45.11M
OpEx % of Revenue----------
Selling, General & Admin5.52M6.19M9.88M12.15M9.93M11.28M15.37M13.34M11.89M9.12M
SG&A % of Revenue----------
Research & Development13.18M16.3M29.82M44.35M24.68M44.94M47.31M29.46M48.22M35.99M
R&D % of Revenue----------
Other Operating Expenses0000000000
Operating Income
-18.7M▲ 0%
-22.49M▼ 20.3%
-39.7M▼ 76.5%
-63.07M▼ 58.9%
-34.67M▲ 45.0%
-56.22M▼ 62.2%
-62.68M▼ 11.5%
-42.79M▲ 31.7%
-60.12M▼ 40.5%
-45.18M▲ 0%
Operating Margin %----------
Operating Income Growth %-55.94%-20.28%-76.53%-58.88%45.04%-62.17%-11.49%31.73%-40.48%-
EBITDA-18.66M-22.45M-39.63M-62.98M-34.61M-55.96M-62.42M-42.53M-59.87M-44.92M
EBITDA Margin %----------
EBITDA Growth %-55.89%-20.31%-76.52%-58.92%45.04%-61.67%-11.56%31.86%-40.76%9.03%
D&A (Non-Cash Add-back)35.79K37.85K71K96.31K56.22K264.18K258.71K262.78K249.62K251.25K
EBIT-18.59M-22.23M-38.75M-61.53M-36.13M-56.03M-60.33M-35.47M-53.93M-41.29M
Net Interest Income-3.47K147.8K805.91K937.5K-1.61M-1.56M655.35K5.25M4.27M1.98M
Interest Income102.04K261.25K952.7K1.54M292.22K185.36K2.35M7.32M6.19M3.88M
Interest Expense105.51K113.45K146.79K603.85K1.9M1.74M1.69M2.07M1.93M1.9M
Other Income/Expense-3.47K147.8K805.91K0-3.37M-1.56M655.35K5.25M4.27M1.98M
Pretax Income
-18.7M▲ 0%
-22.34M▼ 19.5%
-38.89M▼ 74.1%
-62.14M▼ 59.8%
-38.03M▲ 38.8%
-57.78M▼ 51.9%
-62.02M▼ 7.4%
-37.54M▲ 39.5%
-55.85M▼ 48.8%
-43.19M▲ 0%
Pretax Margin %----------
Income Tax66.25K223.4K0-1.31M-479.26K00000
Effective Tax Rate %-0.35%-1%0%2.11%1.26%0%0%0%0%0%
Net Income
-18.7M▲ 0%
-22.34M▼ 19.5%
-38.89M▼ 74.1%
-60.83M▼ 56.4%
-37.55M▲ 38.3%
-57.78M▼ 53.8%
-62.02M▼ 7.4%
-37.54M▲ 39.5%
-55.85M▼ 48.8%
-43.19M▲ 0%
Net Margin %----------
Net Income Growth %-54.66%-19.48%-74.09%-56.4%38.26%-53.85%-7.35%39.47%-48.77%3.58%
Net Income (Continuing)-18.7M-22.34M-38.89M-60.83M-37.55M-57.78M-62.02M-37.54M-55.85M-43.19M
Discontinued Operations0000000000
Minority Interest0000000000
EPS (Diluted)
-1.65▲ 0%
-1.40▲ 15.2%
-1.79▼ 27.9%
-2.24▼ 25.1%
-1.11▲ 50.4%
-1.07▲ 3.6%
-1.06▲ 0.9%
-0.64▲ 39.6%
-0.94▼ 46.9%
-0.72▲ 0%
EPS Growth %-17.86%15.15%-27.86%-25.14%50.45%3.6%0.93%39.62%-46.88%2.71%
EPS (Basic)-1.65-1.40-1.79-2.24-1.11-1.07-1.06-0.64-0.94-
Diluted Shares Outstanding11.35M15.92M21.69M27.11M33.97M54.04M58.41M58.94M59.48M60.13M
Basic Shares Outstanding11.35M15.92M21.69M27.11M33.97M54.04M58.41M58.94M59.48M60.13M
Dividend Payout Ratio----------

ALDX Balance Sheet

Aldeyra Therapeutics, Inc. (ALDX) balance sheet — assets, liabilities & shareholders' equity

Line itemDec'16Dec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24TTM
Total Current Assets25.13M43.97M94.77M75.17M83.06M232.75M181.02M147.81M104.07M77.46M
Cash & Short-Term Investments24.91M42.95M93.6M73.36M77.86M229.79M174.3M142.82M101.15M75.3M
Cash Only12.02M20.02M47.36M44.43M77.86M229.79M144.42M142.82M54.53M59.34M
Short-Term Investments12.9M22.92M46.24M28.94M0029.88M046.62M15.96M
Accounts Receivable0000028.77K3.24M000
Days Sales Outstanding----------
Inventory0000000000
Days Inventory Outstanding----------
Other Current Assets0001.4M4.79M2.5M3.05M4.65M2.51M2.16M
Total Non-Current Assets56.35K209.19K321.87K349.46K293.24K384.35K268.54K516.58K534.22K340.98K
Property, Plant & Equipment56.35K43.26K235.22K349.46K293.24K384.35K268.54K516.58K266.95K340.98K
Fixed Asset Turnover---------0.00x
Goodwill0000000000
Intangible Assets0000000000
Long-Term Investments0000000000
Other Non-Current Assets0165.93K86.64K00000267.26K267.26K
Total Assets
25.19M▲ 0%
44.17M▲ 75.4%
95.09M▲ 115.3%
75.52M▼ 20.6%
83.35M▲ 10.4%
233.14M▲ 179.7%
181.29M▼ 22.2%
148.33M▼ 18.2%
104.61M▼ 29.5%
77.8M▲ 0%
Asset Turnover---------0.00x
Asset Growth %-10.7%75.38%115.26%-20.58%10.37%179.7%-22.24%-18.18%-29.48%-129.8%
Total Current Liabilities2.3M3.35M8.47M12.91M12.41M11.77M15.36M22.26M18.6M28.48M
Accounts Payable275.44K1M3.05M808.3K381.64K1.02M133.63K1.34M180.45K13.42K
Days Payables Outstanding-9.65K15.69K3.06K2.48K----2.83K
Short-Term Debt77.55K116.32K003.66M0911.76K15.15M31.37K15.47M
Deferred Revenue (Current)000000006M24M
Other Current Liabilities983.45K788.57K1.17M1.49M1.32M1.51M3.82M3.09M4.33M7.01M
Current Ratio10.93x13.11x11.18x5.82x6.69x19.77x11.78x6.64x5.59x5.59x
Quick Ratio10.93x13.11x11.18x5.82x6.69x19.77x11.78x6.64x5.59x5.59x
Cash Conversion Cycle----------
Total Non-Current Liabilities1.24M1.22M014.53M11.43M15.63M14.92M6.27M15M72.54K
Long-Term Debt1.24M1.22M014.53M11.43M15.5M14.92M015M72.54K
Capital Lease Obligations00000125.23K0271.63K0356.22K
Deferred Tax Liabilities0000000000
Other Non-Current Liabilities0000000000
Total Liabilities3.54M4.57M8.47M27.44M23.84M27.4M30.28M28.53M33.6M28.56M
Total Debt1.32M1.34M014.75M15.33M15.86M16.08M15.66M15.3M15.54M
Net Debt-10.7M-18.69M-47.36M-29.67M-62.53M-213.93M-128.34M-127.17M-39.22M-43.8M
Debt / Equity0.06x0.03x-0.31x0.26x0.08x0.11x0.13x0.22x0.22x
Debt / EBITDA----------0.35x
Net Debt / EBITDA---------0.97x
Interest Coverage-177.20x-198.21x-270.44x-104.45x-18.21x-32.27x-37.00x-20.66x-31.21x-21.72x
Total Equity
21.65M▲ 0%
39.6M▲ 82.9%
86.62M▲ 118.7%
48.08M▼ 44.5%
59.51M▲ 23.8%
205.74M▲ 245.7%
151.01M▼ 26.6%
119.8M▼ 20.7%
71M▼ 40.7%
49.24M▲ 0%
Equity Growth %-12.98%82.92%118.73%-44.49%23.76%245.72%-26.6%-20.67%-40.73%-170.55%
Book Value per Share1.912.493.991.771.753.812.592.031.190.82
Total Shareholders' Equity21.65M39.6M86.62M48.08M59.51M205.74M151.01M119.8M71M49.24M
Common Stock12.58K19.14K26.24K28.66K38.67K58.08K58.56K59.2K59.65K60.16K
Retained Earnings-77.3M-99.64M-138.54M-199.36M-236.92M-294.69M-356.72M-394.26M-450.11M-477.5M
Treasury Stock0000000000
Accumulated OCI129-17.83K-9.22K5.87K00-103.94K037.44K815
Minority Interest0000000000

ALDX Cash Flow Statement

Aldeyra Therapeutics, Inc. (ALDX) cash flow — operating, investing & free cash flow history

Line itemDec'16Dec'17Dec'18Dec'19Dec'20Dec'21Dec'22Dec'23Dec'24TTM
Cash from Operations-15.15M-19.22M-29.86M-44.98M-37.49M-42.56M-56.64M-30.33M-43.21M-43.21M
Operating CF Margin %----------
Operating CF Growth %-62.67%-26.9%-55.32%-50.66%16.65%-13.5%-33.09%46.46%-42.48%-2483.03%
Net Income-18.7M-22.34M-38.89M-60.83M-37.55M-57.78M-62.02M-37.54M-55.85M-43.19M
Depreciation & Amortization35.79K37.85K71K96.31K56.22K264.18K258.71K262.78K249.62K251.25K
Stock-Based Compensation2.76M2.71M4.14M8.08M7.08M7.11M8.29M5.75M7.97M6.26M
Deferred Taxes266.11K129.25K-237.54K-1.31M-479.26K00000
Other Non-Cash Items27.31K20.34K59.32K6.23M2.23M409.47K283.9K339.65K-1.49M-1.09M
Working Capital Changes462.97K215.45K5M2.74M-8.83M7.44M-3.44M861.18K5.91M-2.31M
Change in Receivables0000000000
Change in Inventory0000000000
Change in Payables-575.72K725.52K2.05M-2.85M-426.66K638.06K-886.08K1.2M-1.16M-173.5K
Cash from Investing-225.23K-10.2M-23.34M18.48M29.02M-7.81K-29.95M30M-44.92M30.17M
Capital Expenditures-11.81K-24.76K-262.97K-9.53K0-7.81K-16.32K000
CapEx % of Revenue----------
Acquisitions11.81K24.76B262.97B609.46K0016.32K000
Investments----------
Other Investing-11.81K-24.76B-262.97B000-16.32K000
Cash from Financing12.74M37.43M80.53M23.58M41.9M194.5M1.22M-1.27M-171.42K1.13M
Debt Issued (Net)00014.45M000-1.04M-292.5K-292.5K
Equity Issued (Net)1000K1000K1000K1000K1000K1000K1000K305.23K121.08K1.42M
Dividends Paid0000000000
Share Repurchases0000000000
Other Financing0-165.93K-1.4M1.23M1.19M4.68M0-532.95K00
Net Change in Cash
-2.63M▲ 0%
8.01M▲ 404.1%
27.33M▲ 241.3%
-2.93M▼ 110.7%
33.43M▲ 1240.4%
151.93M▲ 354.4%
-85.37M▼ 156.2%
-1.6M▲ 98.1%
-88.3M▼ 5431.1%
-8.78M▲ 0%
Free Cash Flow
-15.16M▲ 0%
-19.25M▼ 27.0%
-30.12M▼ 56.5%
-44.99M▼ 49.4%
-37.49M▲ 16.7%
-42.56M▼ 13.5%
-56.65M▼ 33.1%
-30.33M▲ 46.5%
-43.21M▼ 42.5%
-40.08M▲ 0%
FCF Margin %----------
FCF Growth %-61.31%-26.97%-56.49%-49.38%16.67%-13.52%-33.1%46.47%-42.48%-30.69%
FCF per Share-1.34-1.21-1.39-1.66-1.10-0.79-0.97-0.51-0.73-0.73
FCF Conversion (FCF/Net Income)0.81x0.86x0.77x0.74x1.00x0.74x0.91x0.81x0.77x0.93x
Interest Paid000000000850.13K
Taxes Paid0000000000

ALDX Key Ratios

Aldeyra Therapeutics, Inc. (ALDX) financial ratios — P/E, ROE, debt and 30+ core market and balance-sheet ratios

Metric201620172018201920202021202220232024TTM
Return on Equity (ROE)-80.38%-72.95%-61.63%-90.31%-69.81%-43.56%-34.77%-27.73%-58.54%-87.71%
Return on Invested Capital (ROIC)-124.81%-105.86%-98.96%-164.05%-337.91%--649.5%-419.49%-369.42%-369.42%
Debt / Equity0.06x0.03x-0.31x0.26x0.08x0.11x0.13x0.22x0.22x
Interest Coverage-177.20x-198.21x-270.44x-104.45x-18.21x-32.27x-37.00x-20.66x-31.21x-21.72x
FCF Conversion0.81x0.86x0.77x0.74x1.00x0.74x0.91x0.81x0.77x0.93x

ALDX SEC Filings & Documents

Aldeyra Therapeutics, Inc. (ALDX) SEC filings — annual & quarterly reports (10-K, 10-Q)

8-K Announcements

6
Material company update

Apr 1, 2026·SEC

Material company update

Mar 17, 2026·SEC

Material company update

Dec 31, 2025·SEC

10-K Annual Reports

3
FY 2026

Feb 27, 2026·SEC

FY 2025

Feb 28, 2025·SEC

FY 2024

Mar 7, 2024·SEC

10-Q Quarterly Reports

6
FY 2025

Nov 5, 2025·SEC

FY 2025

Aug 7, 2025·SEC

FY 2025

May 14, 2025·SEC

ALDX Frequently Asked Questions

Aldeyra Therapeutics, Inc. (ALDX) stock FAQ — growth, dividends, profitability & financials explained

Growth & Financials

Aldeyra Therapeutics, Inc. (ALDX) grew revenue by 0.0% over the past year. Growth has been modest.

Aldeyra Therapeutics, Inc. (ALDX) reported a net loss of $43.2M for fiscal year 2024.

Dividend & Returns

Aldeyra Therapeutics, Inc. (ALDX) has a return on equity (ROE) of -58.5%. Negative ROE indicates the company is unprofitable.

Aldeyra Therapeutics, Inc. (ALDX) had negative free cash flow of $40.1M in fiscal year 2024, likely due to heavy capital investments.

Explore More ALDX

Aldeyra Therapeutics, Inc. (ALDX) financial analysis — history, returns, DCA and operating performance tools

Total Return Calculator

Historical returns with dividends reinvested

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DCA Calculator

Dollar cost averaging vs lump sum

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Dividend History

Yield, growth, payout safety & DRIP

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Earnings History

EPS trends, net income & profitability

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Price History

Long-term charts & historical price data

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Revenue History

Sales growth patterns & revenue breakdown

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Financial Ratios

30 years of market, efficiency and balance-sheet ratios

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Valuation

DCF intrinsic value, peer multiples & estimates

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