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Aldeyra Therapeutics, Inc. ALDX

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0.65 USD +0.03 (+4.32%)

At closeNov 4, 2026, 6:10 PM EST

0.64 -0.01 -1.14%

After hours · Nov 4, 6:10 PM ET

0.62 Day range 0.718
0.527 52-week range 5.93
YTD
-87.50%
1 year
-86.84%

Financial health

Altman Z-Score

-12.74 Distress zone

Bankruptcy-risk model: below 1.81 distress, above 2.99 safe.

Piotroski F-Score

2 / 9 Weak

Nine pass/fail tests of profitability, leverage and efficiency.

FMP rating

B-2 / 5 overall

  • DCF 4
  • Return on Equity 1
  • Return on Assets 1
  • Debt / Equity 5
  • P/E 1
  • P/B 2

Valuation

P/E -9.2×
FY 2016: -3.2×FY 2017: -4.9×FY 2018: -4.6×FY 2019: -2.6×FY 2020: -6.2×FY 2021: -3.7×FY 2022: -6.6×FY 2023: -5.5×FY 2024: -5.3×FY 2025: -9.2×
FY 2016 5y median -5.5× FY 2025
P/S 0.0×
FY 2016: 0.0×FY 2017: 0.0×FY 2018: 0.0×FY 2019: 0.0×FY 2020: 0.0×FY 2021: 0.0×FY 2022: 0.0×FY 2023: 0.0×FY 2024: 0.0×FY 2025: 0.0×
FY 2016 5y median 0.0× FY 2025
P/B 7.0×
FY 2016: 2.8×FY 2017: 2.7×FY 2018: 2.1×FY 2019: 3.3×FY 2020: 3.9×FY 2021: 1.1×FY 2022: 2.7×FY 2023: 1.7×FY 2024: 4.2×FY 2025: 7.0×
FY 2016 5y median 2.7× FY 2025
P/FCF -9.3×
FY 2016: -4.0×FY 2017: -5.6×FY 2018: -6.0×FY 2019: -3.5×FY 2020: -6.2×FY 2021: -5.1×FY 2022: -7.2×FY 2023: -6.8×FY 2024: -6.9×FY 2025: -9.3×
FY 2016 5y median -6.9× FY 2025
EV/EBITDA -8.1×
FY 2016: -2.7×FY 2017: -4.0×FY 2018: -3.4×FY 2019: -2.1×FY 2020: -5.0×FY 2021: -0.0×FY 2022: -4.6×FY 2023: -2.3×FY 2024: -4.8×FY 2025: -8.1×
FY 2016 5y median -4.6× FY 2025
EV/Sales 0.0×
FY 2016: 0.0×FY 2017: 0.0×FY 2018: 0.0×FY 2019: 0.0×FY 2020: 0.0×FY 2021: 0.0×FY 2022: 0.0×FY 2023: 0.0×FY 2024: 0.0×FY 2025: 0.0×
FY 2016 5y median 0.0× FY 2025
FCF Yield -10.7%
FY 2016: -25.0%FY 2017: -17.8%FY 2018: -16.7%FY 2019: -28.6%FY 2020: -16.1%FY 2021: -19.7%FY 2022: -13.9%FY 2023: -14.7%FY 2024: -14.6%FY 2025: -10.7%
FY 2016 5y median -14.6% FY 2025

Profitability

Gross Margin 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025
Operating Margin 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025
Net Margin 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025
ROE -76.5%
FY 2016: -86.4%FY 2017: -56.4%FY 2018: -44.9%FY 2019: -126.5%FY 2020: -63.1%FY 2021: -28.1%FY 2022: -41.1%FY 2023: -31.3%FY 2024: -78.7%FY 2025: -76.5%
FY 2016 5y median -41.1% FY 2025
ROIC -59.0%
FY 2016: -81.4%FY 2017: -54.9%FY 2018: -45.8%FY 2019: -98.3%FY 2020: -48.1%FY 2021: -25.4%FY 2022: -37.5%FY 2023: -30.3%FY 2024: -69.7%FY 2025: -59.0%
FY 2016 5y median -37.5% FY 2025
ROA -47.0%
FY 2016: -74.2%FY 2017: -50.6%FY 2018: -40.9%FY 2019: -80.5%FY 2020: -45.1%FY 2021: -24.8%FY 2022: -34.2%FY 2023: -25.3%FY 2024: -53.4%FY 2025: -47.0%
FY 2016 5y median -34.2% FY 2025

Growth (YoY)

Revenue 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 FY 2025
Operating Income 41.3%
FY 2016: -55.9%FY 2017: -20.3%FY 2018: -76.5%FY 2019: -58.9%FY 2020: 42.3%FY 2021: -54.4%FY 2022: -11.5%FY 2023: 31.7%FY 2024: -40.5%FY 2025: 41.3%
FY 2016 FY 2025
EPS (diluted) 40.4%
FY 2016: -17.9%FY 2017: 15.2%FY 2018: -27.9%FY 2019: -25.1%FY 2020: 50.4%FY 2021: 3.6%FY 2022: 0.9%FY 2023: 39.6%FY 2024: -46.9%FY 2025: 40.4%
FY 2016 FY 2025
Free Cash Flow 22.8%
FY 2016: -61.3%FY 2017: -27.0%FY 2018: -56.5%FY 2019: -49.4%FY 2020: 16.7%FY 2021: -13.5%FY 2022: -33.1%FY 2023: 46.5%FY 2024: -42.5%FY 2025: 22.8%
FY 2016 FY 2025

Financial Health

Current Ratio 2.6×
FY 2016: 10.9×FY 2017: 13.1×FY 2018: 11.2×FY 2019: 5.8×FY 2020: 6.7×FY 2021: 19.8×FY 2022: 11.8×FY 2023: 6.6×FY 2024: 5.6×FY 2025: 2.6×
FY 2016 5y median 6.6× FY 2025
Quick Ratio 2.6×
FY 2016: 10.9×FY 2017: 13.1×FY 2018: 11.2×FY 2019: 5.8×FY 2020: 6.7×FY 2021: 19.8×FY 2022: 11.8×FY 2023: 6.6×FY 2024: 5.6×FY 2025: 2.6×
FY 2016 5y median 6.6× FY 2025
Debt / Equity 0.4×
FY 2016: 0.1×FY 2017: 0.0×FY 2018: 0.0×FY 2019: 0.3×FY 2020: 0.3×FY 2021: 0.1×FY 2022: 0.1×FY 2023: 0.1×FY 2024: 0.2×FY 2025: 0.4×
FY 2016 5y median 0.1× FY 2025
Net Debt / EBITDA 1.7×
FY 2016: 0.6×FY 2017: 0.8×FY 2018: 1.2×FY 2019: 0.5×FY 2020: 1.8×FY 2021: 3.8×FY 2022: 2.1×FY 2023: 3.6×FY 2024: 0.7×FY 2025: 1.7×
FY 2016 5y median 2.1× FY 2025
Interest Coverage -18.5×
FY 2016: -177×FY 2017: -198×FY 2018: -270×FY 2019: -104×FY 2020: -19.1×FY 2021: -32.3×FY 2022: -37.0×FY 2023: -20.7×FY 2024: -31.2×FY 2025: -18.5×
FY 2016 5y median -31.2× FY 2025

Dividends

Dividend Yield 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025
Payout Ratio 0.0%
FY 2016: 0.0%FY 2017: 0.0%FY 2018: 0.0%FY 2019: 0.0%FY 2020: 0.0%FY 2021: 0.0%FY 2022: 0.0%FY 2023: 0.0%FY 2024: 0.0%FY 2025: 0.0%
FY 2016 5y median 0.0% FY 2025

Annual · latest fiscal year ends 2025-12-31