Aldeyra Therapeutics, Inc.

ALDX
About the company

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.

Country: United StatesPrice: $0.64Market Cap: $38.9M

Investment snapshot

6%positive consensus
Scored 1d ago

Positive

1

BUY / PASS

Neutral / negative

2 / 13

NEUTRAL / FAIL

Median fair value

—

No comparable estimates

Models with upside

0 / 17

Positive margin of safety

Strongest signal

10 of 12 pass — Buffett and Marks object

Key risk

No clean pass — all 13 investors flag at least one valuation criterion

Framework analysis

VerdictMeaning
BUYPositive purchase signal: the framework's buy requirements are met.
PASSThe company clears the framework's checklist or screen, but the framework does not produce a buy signal. For valuation frameworks this often means margin of safety is missing, insufficient, or unavailable; some screen-only frameworks have no intrinsic-value BUY state.
NEUTRALNeither a positive nor negative conclusion. It does not mean to hold an existing position.
FAILThe company does not clear the framework's requirements.
RankedRanked strategies do not use PASS: selected cohort is BUY, outside the cohort is FAIL, and unranked is NEUTRAL.

Current investor scores use trailing 12-month flows and the latest balance sheet where supported. Multi-year and EPS tests retain annual history; each framework shows its financial basis below. Intrinsic values use annual financials.

MetricGraham

Defensive Value

Buffett

Quality Compounder

Lynch

GARP

Greenblatt

Magic Formula

Piotroski

F-Score

Dreman

Contrarian Value

Munger

Quality Focus

Pabrai

Dhandho Framework

Akre

Three-Legged Stool

Marks

Risk-Aware Value

Ackman

Activist Value

Templeton

Global Bargain Hunter

Sleep

Scale Economies Shared

Asness

Systematic Factors

Neff

Low-P/E Total Return

Schloss

Asset-Value Discipline

O'Shaughnessy

Systematic Factor Composite

VerdictFAILFAILFAILNot rankedFAILFAILFAILFAILFAILFAILFAILPASSFAILNEUTRALFAILFAILNEUTRAL
Score
AnalysisChecking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…Checking access…
Intrinsic Value (annual)N/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Margin of SafetyN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/AN/A
Financial Basis

Annual history · FY 2025 · Balance sheet at 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · TTM ended 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · Balance sheet at 2026-09-30 · TTM ended 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025

Latest source filing: 2026-02-27

Score computed: 2026-11-14

Annual history · FY 2025

Latest source filing: 2026-02-27

Score computed: 2026-11-14

Annual history · FY 2025 · TTM ended 2026-09-30 · Balance sheet at 2026-09-30 · Market data at 2026-11-01

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Qualitative assessment · Annual history · FY 2025 · TTM ended 2026-09-30 · Balance sheet at 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Qualitative assessment · Annual history · FY 2025

Latest source filing: 2026-02-27

Score computed: 2026-11-14

Annual history · FY 2025 · Qualitative assessment · Balance sheet at 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · Qualitative assessment

Latest source filing: 2026-02-27

Score computed: 2026-11-14

Annual history · FY 2025 · TTM ended 2026-09-30 · Balance sheet at 2026-09-30 · Market data at 2026-11-01

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · Price history 2025-01-01–2026-11-01 · Balance sheet at 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · Qualitative assessment

Latest source filing: 2026-02-27

Score computed: 2026-11-14

TTM ended 2026-09-30 · Balance sheet at 2026-09-30 · Price history 2025-01-01–2026-11-01 · Annual history · FY 2025

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025

Latest source filing: 2026-02-27

Score computed: 2026-11-14

Annual history · FY 2025 · Balance sheet at 2026-09-30

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Annual history · FY 2025 · TTM ended 2026-09-30 · Price history 2025-01-01–2026-11-01

Latest source filing: 2026-11-05

Score computed: 2026-11-14

Where It Passes

  • Debt & Leverage83% pass✓ 13✗ 2▾

    10 of 12 pass — Buffett and Marks object

    LT Debt vs Net Current AssetsLT Debt $0.0M vs NCA $44.0M
    ✓GrahamLT Debt <= Net Current Assets
    Debt/Equity & Interest CoverageD/E: 0.00, IC: -21.4x
    ✗BuffettD/E < 0.5 AND Interest Coverage > 5x
    Total Debt / Equity0
    ✓Lynch< 0.33
    Cash - Long-term Debt$70.0M
    ✓LynchPositive preferred
    LT Debt / Total Assets Change14.34% -> 0.00%
    ✓PiotroskiDecreased YoY
    Current Assets / Current Liabilities5.45
    ✓Dreman> 1.5✓SchlossCurrent ratio >= 1.50x (app cutoff)
    Total Debt / Shareholders' Equity0
    ✓Dreman< 0.8✓Templeton< 1.0 (fixed cap; proxy for below-sector-median leverage)✓SchlossD/E < 1.00x
    Debt Levels0
    ✓MungerDebt/Equity < 0.5✓AkreDebt/Equity < 0.3
    Interest Coverage & Debt/EBITDAIC=-20.9x, D/EBITDA=N/A (D&A unavailable)
    ✗MarksInterest Coverage > 3x; Debt/EBITDA < 4x
    Total Debt / Shareholders Equity0
    ✓Ackman<= 1.0
    Negative debt-to-equity (higher means less debt)-0.0000; #1/4210 (top 0.0%)
    ✓AsnessTop 30% of eligible cross-section

Where It Falls Short

  • Valuation0% pass✓ 7✗ 21▾

    No clean pass — all 13 investors flag at least one valuation criterion

    Price / Book Value per Share0.9x
    ✓Dreman< 1.2x✓Templeton< 1.5x✗SchlossP/B <= 0.80x (app cutoff)
    Price / 3-yr avg EPS
    ✗Graham<= 15x
    Price-to-Book Ratio0.9x
    ✓Graham<= 1.5x
    P/E x P/B
    ✗Graham<= 22.5
    Basic earnings-growth PEG (dividends excluded)
    ✗Lynch< 1.0 (ideally < 0.5)
    EBIT / Enterprise ValueN/A (EV <= 0)
    ✗Greenblatt> 10%
    Earnings Yield + ROC AssessmentEY=N/A (EV <= 0), ROC=None
    ✗GreenblattBoth EY > 10% and ROC > 25%
    Price / EPS
    ✗Dreman< 12x✗Templeton< 12x (fixed ceiling; proxy for the market's cheapest 40%)
    Price / (CFO / Shares)N/A (negative CFPS)
    ✗Dreman< 8x
    Valuation Reasonableness
    ✗MungerP/E < 25 or Owner Earnings Yield > 5%
    P/E or FCF Yield
    ✗PabraiP/E < 15 or FCF Yield > 10%
    P/B or P/E vs. Historical AverageP/B=0.9x
    ✓MarksP/E < 15 or P/B < 2.0
    Discount to Intrinsic ValueN/A (negative normalized EPS)
    ✗Marks>= 20% below intrinsic value
    Price / FCF per Share
    ✗Ackman<= 25
    Price vs. Trailing Low115% of trailing low ($0.56)
    ✓Templeton<= 120% of trailing low (certified split-adjusted live window)
    Net income / market capitalization-49.22%; #5040/6340 (top 79.5%)
    ✗AsnessTop 30% of eligible cross-section✗OshaughnessyTop 10% of eligible cross-section
    Positive book equity / market capitalization+0.9064; #1667/6449 (top 25.8%)
    ✓AsnessTop 30% of eligible cross-section
    Price / Diluted EPS
    ✗NeffP/E <= 15x (app proxy for a P/E 40%-60% below the market)
    (EPS CAGR % + Dividend Yield %) / P/E
    ✗Neff> 0.7 (Neff's published traditional edge)
    Price / Tangible Book Value per Share0.88x
    ✓SchlossP/TBV <= 1.00x (app cutoff)
    Book Value per Share Change
    ✗SchlossLatest BVPS >= earliest BVPS over >= 3 years (app rule)
    Revenue / market capitalization
    ✗OshaughnessyTop 10% of eligible cross-section
    (Operating cash flow - capex) / market capitalization
    ✗OshaughnessyTop 10% of eligible cross-section
    Trailing six-month price return through the evaluation date-63.82%; #5492/6202 (top 88.6%)
    ✗OshaughnessyTop 10% of eligible cross-section
  • Cash Flow0% pass✓ 1✗ 11▾

    No clean pass — all 10 investors flag at least one cash flow criterion

    Free Cash Flow Proxy
    ✗BuffettPositive and growing
    FCF Positive and Growing$-30.3M
    ✗LynchPositive and growing
    Operating Cash Flow$-33.3M
    ✗PiotroskiCFO > 0
    (CFO / Total Assets) vs ROACFO/Assets=-46.28%, ROA=-46.97%
    ✓PiotroskiCFO/Assets > ROA
    Price / (CFO / Shares)N/A (negative CFPS)
    ✗Dreman< 8x
    P/E or FCF Yield
    ✗PabraiP/E < 15 or FCF Yield > 10%
    FCF Positive0/9 years FCF positive
    ✗MarksPositive FCF in majority of recent years
    (OCF - CapEx) / Market Cap
    ✗Ackman>= 4%
    Price / FCF per Share
    ✗Ackman<= 25
    Positive Operating Cash Flow frequency0/13 years positive
    ✗SleepPositive OCF in >= 70% of available years
    Operating Cash Flow - Capital Expenditures
    ✗Neff> $0 (app proxy for a strong fundamental case)
    (Operating cash flow - capex) / market capitalization
    ✗OshaughnessyTop 10% of eligible cross-section
  • Growth0% pass✓ 1✗ 12▾

    No clean pass — all 8 investors flag at least one growth criterion

    EPS Growth (3-yr avg, 10-yr window)
    ✗Graham>= 33% growth
    Basic earnings-growth PEG (dividends excluded)
    ✗Lynch< 1.0 (ideally < 0.5)
    3-5 Year EPS CAGR
    ✗Lynch15-30% (Fast Grower); > 0% to pass
    Inventory Growth vs Revenue GrowthN/A (no inventory)
    ✓LynchInventory growth < Revenue growth
    EPS Growth Direction
    ✗DremanPositive over recent years
    EPS CAGR
    ✗Dreman> 5% annualized
    Positive Net Income Frequency1/13 years positive
    ✗MarksPositive net income in >= 7 of last 10 years
    3yr Median Revenue Growth
    ✗Ackman>= 5%
    Positive EPS Growth Frequency
    ✗AckmanPositive EPS growth in >= 3 of last 5 years
    5-Year EPS CAGR
    ✗Templeton> 0% (5-year EPS CAGR)
    Revenue growth vs. gross and operating margin trend
    ✗SleepRevenue rising; gross margin flat or falling; operating margin holding
    5-year Revenue CAGR
    ✗SleepCAGR > 7%
    3-5 Year Diluted EPS CAGR
    ✗Neff7%-20% annualized
  • Profitability6% pass✓ 3✗ 32▾

    15 of 16 flag ALDX's profitability — Graham, Buffett, Lynch +12 more

    Positive EPS (10 years)0/14 years positive
    ✗GrahamPositive EPS every year for 10 years
    EPS Growth (3-yr avg, 10-yr window)
    ✗Graham>= 33% growth
    Net Income Positive (10+ years)1/14 years positive
    ✗BuffettPositive every year for 10+ years
    ROE (up to 5-year arithmetic mean)-51.1%
    ✗Buffett> 15% arithmetic mean (app rule)
    Operating Margin (10-yr trend)
    ✗BuffettStable or rising over 10 years
    Free Cash Flow Proxy
    ✗BuffettPositive and growing
    Earnings Variance (10-yr CoV)
    ✗BuffettCoV < 0.3
    Retained Earnings Effectiveness
    ✗Buffett$1 retained -> > $1 market value created
    Basic earnings-growth PEG (dividends excluded)
    ✗Lynch< 1.0 (ideally < 0.5)
    3-5 Year EPS CAGR
    ✗Lynch15-30% (Fast Grower); > 0% to pass
    ROE-54.3%
    ✗Lynch> 15%
    EBIT / Enterprise ValueN/A (EV <= 0)
    ✗Greenblatt> 10%
    Earnings Yield + ROC AssessmentEY=N/A (EV <= 0), ROC=None
    ✗GreenblattBoth EY > 10% and ROC > 25%
    Net Income / Total Assets-46.97%
    ✗PiotroskiROA > 0
    ROA Change YoY-53.39% -> -46.97% (delta: +6.42%)
    ✓PiotroskiCurrent ROA > Prior ROA
    (CFO / Total Assets) vs ROACFO/Assets=-46.28%, ROA=-46.97%
    ✓PiotroskiCFO/Assets > ROA
    Gross Margin Change YoY
    ✗PiotroskiImproved YoY
    Pre-Tax Income / Revenue
    ✗Dreman>= 8%
    Net Income / Shareholders' Equity-54.3%
    ✗Dreman> 12%
    Margin of SafetyP/B=0.9x
    ✓PabraiP/B < 1.5 or P/E < 15
    Return on Equity-62.2% (3-yr avg)
    ✗AkreROE > 20% (3-year avg)
    Discount to Intrinsic ValueN/A (negative normalized EPS)
    ✗Marks>= 20% below intrinsic value
    Positive Net Income Frequency1/13 years positive
    ✗MarksPositive net income in >= 7 of last 10 years
    Operating Income / Revenue
    ✗Ackman>= 15%
    Net Income / Shareholders Equity-54.3%
    ✗Ackman>= 15%
    5-Year EPS CAGR
    ✗Templeton> 0% (5-year EPS CAGR)
    Operating Margin Trend
    ✗TempletonNon-negative operating-margin trend over 3 years
    Revenue growth vs. gross and operating margin trend
    ✗SleepRevenue rising; gross margin flat or falling; operating margin holding
    Net income / market capitalization-49.22%; #5040/6340 (top 79.5%)
    ✗AsnessTop 30% of eligible cross-section✗OshaughnessyTop 10% of eligible cross-section
    Gross profit / total assets
    ✗AsnessTop 30% of eligible cross-section
    Net income / positive book equity-54.30%; #4261/5226 (top 81.5%)
    ✗AsnessTop 30% of eligible cross-section
    Negative 5-year standard deviation of ROA-0.1150; #3656/5884 (top 62.1%)
    ✗AsnessTop 30% of eligible cross-section
    3-5 Year Diluted EPS CAGR
    ✗Neff7%-20% annualized
    Positive Diluted-EPS Years0/10 years positive
    ✗Schloss>= 70% positive over 5-10 observed years (app rule)
  • Verdicts7% pass✓ 1✗ 13▾

    Split decision: 13 FAIL · 2 NEUTRAL · 1 PASS

    Overall verdict
    ✗GrahamFAIL (3/9)✗BuffettFAIL (0/9)✗LynchFAIL (3/7)•GreenblattNot ranked✗PiotroskiFAIL (F-Score 3)✗DremanFAIL (3/11)✗MungerFAIL (1/4)✗PabraiFAIL (1/3)✗AkreFAIL (1/6)✗MarksFAIL (1/5)✗AckmanFAIL (1/9)✓TempletonPASS (4/8)✗SleepFAIL (0/6)•AsnessNEUTRAL (Not ranked)✗NeffFAIL (0/6)✗SchlossFAIL (3/7)•OshaughnessyNEUTRAL (Not ranked)
  • Efficiency25% pass✓ 2✗ 9▾

    6 of 8 flag ALDX's efficiency — Buffett, Greenblatt, Piotroski +3 more

    Current Ratio5.45
    ✓Graham>= 2.0
    ROIC (3-5 yr avg)-168.9%
    ✗Buffett> 10%
    ROIC - WACC-178.9%
    ✗BuffettPositive (WACC = 10%)
    EBIT / (NWC + Net Fixed Assets)
    ✗Greenblatt> 25%
    Current Ratio Change YoY5.59 -> 2.58
    ✗PiotroskiIncreased YoY
    Revenue / Total Assets Change YoY
    ✗PiotroskiImproved YoY
    Current Assets / Current Liabilities5.45
    ✓Dreman> 1.5
    Return on Invested Capital-45.3%
    ✗Munger> 15%
    ROIC (high and growing)FY2023: ROIC=-25.1%; FY2024: ROIC=-55.2%; FY2025: ROIC=-46.8%
    ✗AkreLatest 3 consecutive FYs: ROIC > 15% in each
    Reinvestment Rate x ROICN/A (non-positive net income)
    ✗AkreReinvestment Rate * ROIC > 10%
    ROIC (5-year)0/5 years above 12% (latest -46.8%)
    ✗SleepROIC > 12% in a majority of years

Business & financials

Financial snapshot: annual FY 2025. Current investor scores may use newer quarterly data.

Company Profile

Industry: Pharmaceutical Products
SIC Sector: Chemicals & Pharmaceuticals
Size: Micro Cap($38.9M)
Revenue: N/A
Net Income: $33.8M+39.4% YoY

Financial Snapshot

Operating Margin--
Return on Equity-76.5%
Debt / Equity0.34
Current Ratio2.58
EPS (Diluted)$-0.56
Shares Retired−0.8% / −2.2% 2y

Similar Companies

MRKMerck & Co., Inc.
$364.3B
ABTABBOTT LABORATORIES
$188.0B
BMYBRISTOL MYERS SQUIBB CO
$129.7B
TECHBIO-TECHNE Corp
$11.4B

Shareholder Return

Fiscal 2025

Issued 0.8% of shares last year, 2.2% issued over two.

Buybacks
—
Dividends
—

Company Financials

Latest TTM and quarters alongside annual years

TTM sums four consecutive quarters and uses the latest quarter-end balances. Quarter columns show three-month results; annual columns show full-year totals. Growth compares the same period a year earlier. EPS is not added for TTM; full-year ratios are blank for quarters.

The latest annual period end is unavailable. Showing the latest fiscal cycle’s quarters; quarter and annual columns may overlap. Quarterly shows the full quarter history.

MetricTTM · 2026-09-30

2025-10-01 – 2026-09-30

Sources · derived quarter values

Derived from cumulative filings: net income, operating income, ebit, interest expense, operating cash flow.

Q3 FY 2026

2026-07-01 – 2026-09-30

Sources · derived quarter values

Derived from cumulative filings: operating cash flow.

Q2 FY 2026

2026-04-01 – 2026-06-30

Sources · derived quarter values

Derived from cumulative filings: operating cash flow.

Q1 FY 2026

2026-01-01 – 2026-03-31

Sources
FY 2025
Sources
  • 10-K · 2026-02-27
FY 2024
Sources
  • 10-K · 2025-02-28
FY 2023
Sources
  • 10-K · 2024-03-07
FY 2022
Sources
  • 10-K · 2023-03-09
FY 2021
Sources
  • 10-K · 2023-03-09
Market Cap$38.9Mcurrent------$322.6Mest.$312.9Mest.$184.3Mest.$345.6Mest.$213.2Mest.
Revenue------------------
Operating Income-$20.2M↑55%-$4.1M↑48%-$5.9M↑42%-$3.5M↑66%-$35.3M↑41%-$60.1M↓40%-$42.8M↑32%-$62.7M↓11%-$56.2M
Net Income-$19.1M↑56%-$3.8M↑51%-$5.5M↑44%-$3.5M↑65%-$33.8M↑39%-$55.9M↓49%-$37.5M↑39%-$62.0M↓7%-$57.8M
EPS (Diluted)--$-0.06↑54%$-0.09↑44%$-0.06↑65%$-0.56↑40%$-0.94↓47%$-0.64↑40%$-1.06↑1%$-1.07
Gross Margin—————————
Operating Margin—————————
ROE-54.3%↑38%———-76.5%↑3%-78.7%↓151%-31.3%↑24%-41.1%↓46%-28.1%
Total Debt$0↓100%$0↓100%$0↓100%$15.3M↑1%$15.2M↑1%$15.0M↓1%$15.1M↓4%$15.8M↑2%$15.5M
Shareholders' Equity$35.2M↓28%$35.2M↓28%$37.9M↓31%$42.2M↓34%$44.3M↓38%$71.0M↓41%$119.8M↓21%$151.0M↓27%$205.7M
Current Ratio5.45↑100%5.45↑100%4.91↑71%2.72↓58%2.58↓54%5.59↓16%6.64↓44%11.78↓40%19.77
Debt / Equity0.00↓100%0.00↓100%0.00↓100%0.36↑53%0.34↑63%0.21↑67%0.13↑21%0.10↑39%0.08
Operating Cash Flow-$19.1M↑52%-$4.1M↑41%-$4.6M↑46%-$5.1M↑59%-$33.3M↑23%-$43.2M↓42%-$30.3M↑46%-$56.6M↓33%-$42.6M
Free Cash Flow-------------$30.3M↑46%-$56.7M↓33%-$42.6M

Score history

Historical Score Timeline

Industry peers

Industry Peers

Similar companies in Pharmaceutical Products

ALDX vs Peers — Financial Grading

RevenueN/A
Net Income$33.8MBottom 25%
ROE-76.5%Bottom 25%
D/E0.34Median
Op. Margin—
Curr. Ratio2.58Median
CompanyMarket CapPriceRevenueNet IncomeROED/EOp. MarginCurr. RatioGrahamBuffettLynchGreenblattPiotroskiDreman
Merck & Co., Inc.MRK$364.3B$147.76$65.0B$18.3B34.7%0.94—1.542/95/94/70/3F-Score 41/11
ABBOTT LABORATORIESABT$188.0B$108.52$44.3B$6.5B12.5%0.2518.2%1.583/94/92/71/3F-Score 53/11
BRISTOL MYERS SQUIBB COBMY$129.7B$63.43$48.2B$7.1B38.2%2.4419.4%1.262/91/93/71/3F-Score 85/11
BIO-TECHNE CorpTECH$11.4B$72.80$1.2B$73.4M3.8%—8.4%3.464/93/93/70/3F-Score 54/11
REPLIGEN CORPRGEN$10.7B$167.79$738.3M$48.9M2.3%0.267.5%8.373/92/93/70/3F-Score 75/11
IONIS PHARMACEUTICALS INCIONS$4.8B$29.06$943.7M$381.4M-78.0%3.60-40.4%3.833/91/91/70/3F-Score 43/11
NEOGEN CORPNEOG$2.5B$11.23$870.4M$7.9M-0.4%0.76-2.5%3.823/91/92/70/3F-Score 64/11
Pharvaris N.V.PHVS$2.4B$33.36—$206.4M-64.8%0.00——0/90/92/70/3F-Score 22/11