Aldeyra Therapeutics, Inc. (ALDX) stock
Close on Nov 13, 2026Market cap $38.84MP/E –Yield –
Aldeyra Therapeutics statistics
64 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.
Important dates
- Next earnings
- –
- Last ex-dividend date
- No dividends
- Fundamentals through
- Sep 30, 2026
- Share price as of
- Nov 13, 2026
Valuation ratiosIndustry
- P/TBV Ratio
- 1.10
- 2.22
Share statisticsIndustry
- Shares Change (YoY)
- 0.63%
- 10.8%
- Shares Change (QoQ)
- 0.06%
- 0.50%
- Float
- 32M
- 49M
- Shares Held by Insiders
- 47.6%
- 11.7%
- Shares Held by Institutions
- 60.9%
- 56.4%
Short sellingIndustry
- Short Interest
- 3M
- –
- Short Interest Change
- -0.84%
- -0.80%
- Short % of Float
- 10.0%
- 9.01%
- Short % of Shares Outstanding
- 5.24%
- 6.30%
- Days to Cover
- 3.44
- 5.15
Stock price statisticsIndustry
- 52-Week High
- $5.93
- –
- 52-Week Low
- $0.53
- –
- 20-Day Moving Average
- $0.64
- –
- 50-Day Moving Average
- $0.97
- –
- 200-Day Moving Average
- $2.06
- –
- Average True Range (14)
- $0.08
- –
- Price Change (1 Week)
- 1.59%
- -1.15%
- Price Change (1 Month)
- -12.7%
- -4.87%
- Price Change (3 Months)
- -58.7%
- -21.0%
- Price Change (6 Months)
- -61.7%
- -20.6%
- Price Change (YTD)
- -87.6%
- -23.6%
- Price Change (1 Year)
- -87.9%
- -22.4%
- Price Change (3 Years)
- -75.0%
- -29.5%
- Price Change (5 Years)
- -92.7%
- -77.9%
- Price Change (10 Years)
- -90.6%
- -65.4%
- Average Volume (10 Days)
- 782,266
- –
- Average Volume (20 Days)
- 815,088
- –
- Average Volume (90 Days)
- 1M
- –
- Relative Volume
- 0.68
- 0.70
- Relative Strength Index (14)
- 38.2
- 43.4
- Volatility (1 Year)
- 118.3%
- 80.1%
- Beta (5 Years)
- 2.02
- 1.07
Returns on capitalIndustry
- Return on Equity (ROE)
- -45.3%
- -49.9%
- Return on Assets (ROA)
- -31.6%
- -40.6%
- Return on Capital Employed (ROCE)
- -56.9%
- -37.9%
Financial positionIndustry
- Current Ratio
- 5.45
- 3.30
- Quick Ratio
- 5.20
- 2.39
- Debt / Equity
- 0.00
- 0.49
- Interest Coverage
- -21.39
- -6.35
EfficiencyIndustry
- Profits Per Employee
- -$2.39M
- -$689.41K
- Employee Count
- 8
- 74
- WACC
- 15.2%
- 10.2%
Income statement (TTM)Industry
Balance sheetIndustry
- Net Cash (Debt)
- $40.98M
- $17.76M
- Net Cash Per Share
- $0.68
- $0.80
- Equity (Book Value)
- $35.22M
- $53.89M
- Book Value Per Share
- $0.58
- $1.50
- Tangible Book Value
- $35.22M
- $27.13M
- Working Capital
- $35.04M
- $79.99M
Cash flow (TTM)Industry
Dividends and yieldsIndustry
- Earnings Yield
- -49.2%
- -21.8%
Taxes and interestIndustry
- Interest Expense
- $944.40K
- $2.90M
Scores and fair valueIndustry
- Altman Z-Score
- -13.74
- 0.23
- Piotroski F-Score
- 2
- 4
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 13, 2026. The S&P 500 is measured by the SPY fund.
| Period | ALDX | S&P 500 | Difference | ALDX per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -28.5% | -3.0% | −25.4 pts | ||
| 3 months | -55.3% | -2.8% | −52.5 pts | ||
| Year to date | -87.6% | +11.5% | −99.1 pts | ||
| 1 year | -87.2% | +13.5% | −100.6 pts | ||
| 3 years | -73.8% | +77.7% | −151.5 pts | -36.0% | +21.1% |
| 5 years | -92.7% | +72.6% | −165.3 pts | -40.8% | +11.5% |
| 10 years | -89.8% | +308.2% | −398.0 pts | -20.4% | +15.1% |
Short interest
Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.
3M ALDX shares were sold short on Oct 30, 2026, down 0.8% from the previous report, or 10.00% of the shares available to trade. At recent volumes it would take 3.4 days to buy them back. Over the last 20 sessions, 32.9% of the volume reported to FINRA was short selling.
| Settlement date | Shares short | Change | Avg. daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 3,159,816 | -0.8% | 917,902 | 3.4 |
| Oct 15, 2026 | 3,186,618 | -8.2% | 2,470,137 | 1.3 |
| Sep 30, 2026 | 3,470,527 | -3.7% | 1,149,748 | 3.0 |
| Sep 15, 2026 | 3,604,007 | +15.5% | 738,249 | 4.9 |
| Aug 31, 2026 | 3,121,454 | -6.1% | 656,849 | 4.8 |
| Aug 14, 2026 | 3,324,554 | -2.9% | 872,280 | 3.8 |
| Jul 31, 2026 | 3,424,453 | -4.7% | 1,115,055 | 3.1 |
| Jul 15, 2026 | 3,594,821 | -36.7% | 1,809,105 | 2.0 |
| Jun 30, 2026 | 5,675,750 | -17.3% | 2,267,762 | 2.5 |
| Jun 15, 2026 | 6,866,258 | -13.6% | 1,096,740 | 6.3 |
| May 29, 2026 | 7,950,344 | +4.9% | 926,177 | 8.6 |
| May 15, 2026 | 7,582,299 | +3.0% | 893,265 | 8.5 |
Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.
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