Plug Power Inc (PLUG) stock
PLUGNasdaqElectrical Industrial ApparatusFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 9, 2026Score 6/3030% below fair value
$1.35−0.01 (-0.73%)
Close on Nov 11, 2026Market cap $1.89BP/E –Yield –
Plug Power statistics
83 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
- Mar 1, 2027 (estimated, after the close)
- Last ex-dividend date
- No dividends
- Fundamentals through
- Sep 30, 2026
- Share price as of
- Nov 11, 2026
Valuation ratiosIndustry
- P/TBV Ratio
- 2.79
- 3.67
Enterprise valuationIndustry
- EV / Sales
- 2.30
- 2.63
Share statisticsIndustry
- Shares Change (YoY)
- 37.2%
- 2.36%
- Float
- 1.33B
- 50M
- Shares Held by Insiders
- 4.56%
- 5.30%
- Shares Held by Institutions
- 58.3%
- 61.6%
Short sellingIndustry
- Short Interest
- 281M
- –
- Short Interest Change
- -3.76%
- -0.74%
- Short % of Float
- 21.1%
- 6.67%
- Short % of Shares Outstanding
- 20.1%
- 5.10%
- Days to Cover
- 6.19
- 3.58
Stock price statisticsIndustry
- 52-Week High
- $4.33
- –
- 52-Week Low
- $1.30
- –
- 20-Day Moving Average
- $1.40
- –
- 50-Day Moving Average
- $1.73
- –
- 200-Day Moving Average
- $2.36
- –
- Average True Range (14)
- $0.11
- –
- Price Change (1 Week)
- -7.19%
- 0.87%
- Price Change (1 Month)
- -13.1%
- -10.5%
- Price Change (3 Months)
- -41.1%
- -23.0%
- Price Change (6 Months)
- -65.8%
- -31.7%
- Price Change (YTD)
- -31.2%
- 0.66%
- Price Change (1 Year)
- -47.1%
- 2.46%
- Price Change (3 Years)
- -61.6%
- 33.0%
- Price Change (5 Years)
- -96.9%
- -26.0%
- Price Change (10 Years)
- -7.82%
- 110.8%
- Average Volume (10 Days)
- 63M
- –
- Average Volume (20 Days)
- 55M
- –
- Average Volume (90 Days)
- 53M
- –
- Relative Volume
- 0.47
- 0.82
- Relative Strength Index (14)
- 39.2
- 46.3
- Volatility (1 Year)
- 79.7%
- 81.9%
- Beta (5 Years)
- 1.85
- 1.39
MarginsIndustry
- Pretax Margin
- -161.7%
- 2.97%
- EBITDA Margin
- -131.8%
- 5.08%
- FCF Margin
- -63.3%
- 2.53%
Returns on capitalIndustry
- Return on Equity (ROE)
- -111.2%
- -0.10%
- Return on Assets (ROA)
- -45.3%
- -1.45%
- Return on Invested Capital (ROIC)
- -140.3%
- 1.20%
- Return on Capital Employed (ROCE)
- -63.2%
- 0.39%
Financial positionIndustry
- Current Ratio
- 2.21
- 2.34
- Quick Ratio
- 0.61
- 1.32
- Interest Coverage
- -13.54
- 0.07
GrowthIndustry
- Revenue Growth (YoY)
- 13.5%
- 13.8%
- Revenue Growth (3Y CAGR)
- 0.40%
- 1.79%
EfficiencyIndustry
- Asset Turnover
- 0.29
- 0.66
- Inventory Turnover
- 1.54
- 3.04
- Revenue Per Employee
- $297.30K
- $373.11K
- Profits Per Employee
- -$456.90K
- -$5.53K
- Employee Count
- 2,582
- 534
- WACC
- 14.1%
- 11.3%
Income statement (TTM)Industry
- Pretax Income
- -$1.24B
- $831.50K
Balance sheetIndustry
- Net Cash (Debt)
- $134.13M
- $7.64M
- Net Cash Per Share
- $0.10
- $0.33
- Equity (Book Value)
- $705.90M
- $200.69M
- Book Value Per Share
- $0.51
- $5.46
- Tangible Book Value
- $679.54M
- $63.99M
- Working Capital
- $608.90M
- $157.46M
Cash flow (TTM)Industry
- Capital Expenditures
- -$16.38M
- -$17.40M
- FCF Per Share
- -$0.35
- $0.20
Dividends and yieldsIndustry
- Earnings Yield
- -62.3%
- -0.18%
- FCF Yield
- -25.6%
- 0.78%
Taxes and interestIndustry
- Interest Expense
- $74.77M
- $9.10M
- Income Tax
- $544.00K
- $3.21M
Scores and fair valueIndustry
- Altman Z-Score
- -5.76
- 2.88
- Piotroski F-Score
- 5
- 5
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.
| Period | PLUG | S&P 500 | Difference | PLUG per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | -19.3% | -2.4% | −16.9 pts | ||
| 3 months | -39.0% | -1.2% | −37.8 pts | ||
| Year to date | -31.2% | +12.3% | −43.5 pts | ||
| 1 year | -46.4% | +12.4% | −58.9 pts | ||
| 3 years | -61.6% | +78.8% | −140.4 pts | -27.3% | +21.4% |
| 5 years | -96.9% | +75.2% | −172.0 pts | -50.0% | +11.9% |
| 10 years | -7.8% | +311.1% | −318.9 pts | -0.8% | +15.2% |
Short interest
Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.
281M PLUG shares were sold short on Oct 30, 2026, down 3.8% from the previous report, or 21.07% of the shares available to trade. At recent volumes it would take 6.2 days to buy them back. Over the last 20 sessions, 59.4% of the volume reported to FINRA was short selling.
| Settlement date | Shares short | Change | Avg. daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 280,964,711 | -3.8% | 45,357,108 | 6.2 |
| Oct 15, 2026 | 291,955,349 | +2.6% | 50,938,965 | 5.7 |
| Sep 30, 2026 | 284,616,311 | -0.9% | 48,712,548 | 5.8 |
| Sep 15, 2026 | 287,260,138 | -1.3% | 47,196,152 | 6.1 |
| Aug 31, 2026 | 290,960,720 | +0.0% | 56,085,838 | 5.2 |
| Aug 14, 2026 | 290,919,389 | -1.1% | 71,975,525 | 4.0 |
| Jul 31, 2026 | 294,021,600 | -10.9% | 48,983,019 | 6.0 |
| Jul 15, 2026 | 330,057,977 | -3.1% | 47,764,818 | 6.9 |
| Jun 30, 2026 | 340,731,106 | +0.3% | 56,549,618 | 6.0 |
| Jun 15, 2026 | 339,623,154 | -2.2% | 58,403,137 | 5.8 |
| May 29, 2026 | 347,303,584 | +1.9% | 83,911,911 | 4.1 |
| May 15, 2026 | 340,711,258 | -0.8% | 95,940,001 | 3.5 |
Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.
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