Plug Power Inc. (PLUG) Key Metrics
PLUG valuation today
Trailing 12 months · as of October 18, 2026- Market cap
- $1.93B
- Enterprise value
- $3.82B
- P/E (TTM)
- —
- Forward P/E
- 13.1
- PEG ratio
- 0.84
- Price / sales
- 2.6 10-yr median 3.2
- Price / book
- 5.1 10-yr median 2.0
- EV / EBITDA
- —
- Dividend yield
- —
- Beta
- 2.29
PLUG key metrics, 2016–2025
Fiscal year ended December 31, 2025 · U.S. dollarsPLUG valuation Price multiples at each fiscal year-end price.
Price / sales+10.6%
3.2
2025 · hover or tap a bar for each year
20162025
Price / book+121.3%
2.3
2025 · hover or tap a bar for each year
20162025
Free cash flow yield+29.1 pts
−29.0%
2025 · hover or tap a bar for each year
20162025
PLUG returns How much profit the business earns on the capital it uses.
Return on equity−29.4 pts
−120.3%
2025 · hover or tap a bar for each year
20162025
Return on invested capital+22.5 pts
−26.7%
2025 · hover or tap a bar for each year
20162025
Return on assets−3.2 pts
−52.7%
2025 · hover or tap a bar for each year
20162025
Free cash flow margin+75.9 pts
−93.2%
2025 · hover or tap a bar for each year
20162025
Asset turnover+54.9%
0.23
2025 · hover or tap a bar for each year
20162025
PLUG per-share figures Results divided by the shares outstanding at year-end.
Revenue per share−16.3%
$0.61
2025 · hover or tap a bar for each year
20162025
Earnings per share
−$1.41
2025 · hover or tap a bar for each year
20162025
Free cash flow per share
−$0.57
2025 · hover or tap a bar for each year
20162025
Book value per share−58.2%
$0.84
2025 · hover or tap a bar for each year
20162025
Shares outstanding+35.0%
1.16B
2025 · hover or tap a bar for each year
20162025
PLUG financial health Debt, liquidity and how easily interest is covered.
Debt / equity+63.9%
1.02
2025 · hover or tap a bar for each year
20162025
Net debt−$431.1M
$441.9M
2025 · hover or tap a bar for each year
20162025
Current ratio+17.0%
2.31
2025 · hover or tap a bar for each year
20162025
Interest coverage
-10.4
2025 · hover or tap a bar for each year
20162025
Debt / assets+28.4%
0.38
2025 · hover or tap a bar for each year
20162025
PLUG efficiency & capital use Working capital cycle and where the cash goes.
Days sales outstanding−54 days
126 days
2025 · hover or tap a bar for each year
20162025
Days of inventory−9 days
231 days
2025 · hover or tap a bar for each year
20162025
Days payables outstanding+5 days
75 days
2025 · hover or tap a bar for each year
20162025
Cash conversion cycle−68 days
282 days
2025 · hover or tap a bar for each year
20162025
Capex / revenue−35.5 pts
17.7%
2025 · hover or tap a bar for each year
20162025
PLUG valuation history
Fiscal year-endToday10-year median
PLUG returns on capital
ROEROICROA
Net income (ROE, ROA) or after-tax operating income (ROIC) divided by the average of the opening and closing balance.
PLUG debt vs cash
Total debtCash & short-term investments
Debt includes short- and long-term borrowings and, where reported, lease liabilities.
PLUG cash returned to shareholders
DividendsBuybacksFree cash flow
PLUG price vs earnings per share
Share price at year-endEPS (right axis)
PLUG key metrics
2016–2025| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|
| Valuation | ||||||||||
| Market capitalization | $2.28B | $1.83B | $2.68B | $7.17B | $15.76B | $12.03B | — | — | — | — |
| Enterprise value | $2.72B | $2.70B | $3.67B | $5.91B | $12.70B | $12.14B | — | — | — | — |
| Price / sales | 3.2 | 2.9 | 3.0 | 10.2 | 31.4 | — | — | — | — | — |
| Price / book | 2.3 | 1.1 | 0.9 | 1.8 | 3.4 | 20.5 | — | — | — | — |
| EV / sales | 3.8 | 4.3 | 4.1 | 8.4 | 25.3 | — | — | — | — | — |
| Earnings yield | −71.5% | −115.1% | −51.1% | −10.1% | −2.9% | −5.0% | — | — | — | — |
| Free cash flow yield | −29.0% | −58.1% | −67.3% | −15.1% | −3.5% | −1.7% | — | — | — | — |
| Dividend yield | — | — | — | 0.3% | 0.2% | 0.1% | — | — | — | — |
| Shareholder yield (dividends + buybacks) | — | — | 0.4% | 0.7% | 0.4% | 0.3% | — | — | — | — |
| Share price at fiscal year-end | $1.97 | $2.13 | $4.50 | $12.37 | $28.23 | $33.91 | $3.16 | $1.24 | $2.36 | $1.20 |
| Per share | ||||||||||
| Revenue per share | $0.61 | $0.73 | $1.50 | $1.21 | $0.90 | $0.00 | — | — | — | — |
| Earnings per share | −$1.41 | −$2.45 | −$2.30 | −$1.25 | −$0.82 | −$1.68 | — | — | — | — |
| Operating cash flow per share | −$0.46 | −$0.85 | −$1.86 | −$1.07 | −$0.64 | −$0.44 | — | — | — | — |
| Free cash flow per share | −$0.57 | −$1.24 | −$3.03 | −$1.87 | −$0.99 | −$0.58 | — | — | — | — |
| Cash per share | $0.48 | $0.24 | $0.23 | $3.72 | $6.93 | $1.26 | — | — | — | — |
| Book value per share | $0.84 | $2.02 | $4.87 | $7.00 | $8.25 | $1.65 | — | — | — | — |
| Tangible book value per share | $0.82 | $1.92 | $4.55 | $6.22 | $7.57 | $1.34 | — | — | — | — |
| Dividends per share | — | — | — | $0.04 | $0.06 | $0.05 | — | — | — | — |
| Capex per share | $0.11 | $0.39 | $1.17 | $0.80 | $0.35 | $0.14 | — | — | — | — |
| Debt per share | $0.86 | $1.26 | $1.89 | $1.55 | $1.45 | $1.58 | — | — | — | — |
| Shares outstanding | 1.16B | 858.4M | 595.5M | 579.7M | 558.2M | 354.8M | — | — | — | — |
| Change in shares outstanding | +35.0% | +44.2% | +2.7% | +3.9% | +57.3% | — | — | — | — | — |
| Returns & profitability | ||||||||||
| Return on equity (ROE) | −120.3% | −90.9% | −39.3% | −16.7% | −17.7% | −145.3% | −72.0% | −204.6% | −160.1% | −54.8% |
| Return on invested capital (ROIC) | −26.7% | −49.1% | −31.7% | −24.7% | −30.8% | −21.4% | −9.4% | −28.2% | −61.9% | −41.8% |
| Return on assets (ROA) | −52.7% | −49.5% | −25.7% | −12.4% | −12.6% | −52.9% | −13.3% | −23.6% | −49.7% | −25.5% |
| Return on tangible assets | −63.6% | −59.8% | −29.0% | −13.6% | −8.3% | −47.9% | −10.8% | −20.7% | −49.3% | −25.1% |
| Free cash flow margin | −93.2% | −169.0% | −202.2% | −154.6% | −109.8% | — | −28.5% | −44.7% | −78.6% | −102.1% |
| Financial health | ||||||||||
| Total debt | $997.2M | $1.08B | $1.13B | $898.7M | $810.1M | $560.1M | $526.8M | $272.5M | $103.7M | $68.3M |
| Cash & short-term investments | $555.3M | $205.7M | $135.0M | $2.16B | $3.87B | $448.1M | $152.5M | $38.6M | $24.8M | $46.0M |
| Net debt | $441.9M | $872.9M | $991.0M | −$1.26B | −$3.06B | $112.0M | $374.3M | $233.9M | $78.9M | $22.3M |
| Debt / equity | 1.02 | 0.62 | 0.39 | 0.22 | 0.18 | 0.96 | 2.25 | 100.45 | 1.41 | 0.80 |
| Debt / assets | 0.38 | 0.30 | 0.23 | 0.16 | 0.14 | 0.41 | 0.59 | 0.70 | 0.38 | 0.28 |
| Current ratio | 2.31 | 1.97 | 1.85 | 5.20 | 10.58 | 3.09 | 2.11 | 1.06 | 1.03 | 1.67 |
| Quick ratio | 1.46 | 1.06 | 0.86 | 4.19 | 9.94 | 2.55 | 1.49 | 0.74 | 0.61 | 1.22 |
| Interest coverage | -10.4 | -43.3 | -29.7 | -17.4 | -10.1 | -2.9 | -1.4 | -3.1 | -10.1 | -4.8 |
| Working capital | $799.7M | $729.0M | $822.2M | $2.67B | $4.03B | $526.1M | $207.3M | $9.2M | $3.9M | $44.4M |
| Invested capital | $1.42B | $2.61B | $3.89B | $2.80B | $1.55B | $698.2M | $608.9M | $236.6M | $152.5M | $107.4M |
| Tangible asset value | $974.1M | $1.72B | $2.71B | $3.60B | $4.23B | $474.9M | $125.3M | −$10.2M | $60.4M | $72.9M |
| Net current asset value | −$181.0M | −$317.6M | −$217.6M | $1.60B | $3.10B | $8.5M | −$269.2M | −$232.0M | −$77.6M | −$44.8M |
| Graham net-net per share | −$0.51 | −$1.23 | −$1.87 | $1.59 | $4.94 | −$0.48 | — | — | — | — |
| Capital allocation | ||||||||||
| Dividends paid | — | — | — | $23.7M | $32.1M | $16.3M | — | — | $64.6M | $116.3M |
| Share buybacks (net) | — | — | $10.0M | $23.7M | $32.1M | $16.3M | $4.0M | $43.5M | $3.7M | $182,000 |
| Capex / revenue | 17.7% | 53.2% | 78.1% | 66.1% | 38.5% | — | 5.3% | 11.2% | 33.4% | 67.6% |
| Capex / depreciation | 2.82 | 3.95 | 9.79 | 8.99 | 8.27 | 3.23 | 0.97 | 1.67 | 4.53 | 11.08 |
| Stock-based compensation / revenue | 4.8% | 13.1% | 18.3% | 25.6% | 15.2% | — | 4.7% | 5.0% | 6.9% | 10.8% |
| R&D / revenue | 8.2% | 12.3% | 12.8% | 14.2% | 12.9% | — | 14.6% | 19.5% | 21.6% | 24.6% |
| SG&A / revenue | 53.5% | 59.8% | 47.4% | 54.2% | 35.8% | — | 19.3% | 21.9% | 33.9% | 39.9% |
| Efficiency | ||||||||||
| Days sales outstanding | 126.3 | 180.3 | 115.1 | 84.1 | 88.9 | — | 66.0 | 64.5 | 49.6 | 73.4 |
| Days of inventory on hand | 230.7 | 239.3 | 209.6 | 186.4 | 109.3 | 120.7 | 146.6 | 102.6 | 109.4 | 139.6 |
| Days payables outstanding | 74.7 | 69.7 | 58.7 | 65.4 | 50.9 | 47.8 | 67.3 | 81.9 | 103.5 | 122.5 |
| Cash conversion cycle (days) | 282.4 | 350.0 | 266.0 | 205.1 | 147.3 | — | 145.2 | 85.1 | 55.5 | 90.5 |
| Receivables turnover | 2.89 | 2.02 | 3.17 | 4.34 | 4.10 | 0.00 | 5.53 | 5.66 | 7.36 | 4.97 |
| Payables turnover | 4.89 | 5.24 | 6.22 | 5.58 | 7.17 | 7.63 | 5.42 | 4.46 | 3.53 | 2.98 |
| Inventory turnover | 1.58 | 1.53 | 1.74 | 1.96 | 3.34 | 3.02 | 2.49 | 3.56 | 3.34 | 2.62 |
| Asset turnover | 0.23 | 0.15 | 0.17 | 0.12 | 0.14 | 0.00 | 0.36 | 0.53 | 0.52 | 0.38 |
| Average receivables | $245.7M | $310.7M | $281.0M | $161.6M | $122.4M | $79.6M | $41.6M | $30.8M | $18.1M | $17.3M |
| Average payables | $194.8M | $239.3M | $224.9M | $160.5M | $93.9M | $49.3M | $37.3M | $38.6M | $37.2M | $27.5M |
| Average inventory | $601.8M | $821.9M | $803.4M | $457.4M | $201.7M | $124.4M | $81.2M | $48.3M | $39.4M | $31.3M |
| Intangibles / total assets | 1.1% | 2.3% | 3.9% | 7.9% | 6.4% | 8.2% | 12.2% | 3.3% | 4.9% | 5.1% |
Computed from PLUG's annual financial statements (latest annual report filed March 2, 2026) and the closing share price on each fiscal year-end, adjusted for stock splits. Figures in U.S. dollars; data from EODHD. Averages use the opening and closing balance of each year.
PLUG valuation and financial ratios
Plug Power earned a return on equity of −120.3% and a return on invested capital of −26.7% in fiscal 2025. It ended the year with $997.2 million of debt and $555.3 million in cash and short-term investments, net debt of $441.9 million.
See the PLUG income statement, the PLUG chart for price history, or the PLUG stock overview for the latest quote and news.
PLUG key metrics FAQ
What is Plug Power's return on equity?
Plug Power's return on equity (ROE) was −120.3% in fiscal 2025: net income of -$1.6 billion on average shareholders' equity of $1.4 billion.
What is Plug Power's ROIC?
Plug Power's return on invested capital was −26.7% in fiscal 2025, using after-tax operating income divided by average debt plus equity minus cash.
How much debt does Plug Power have?
Plug Power had total debt of $997.2 million at the end of fiscal 2025, a debt-to-equity ratio of 1.02.
What is Plug Power's free cash flow yield?
Plug Power generated -$661.5 million of free cash flow in fiscal 2025, a free cash flow yield of −29.0% on its market value at year-end ($2.3 billion).
What is Plug Power's current ratio?
Plug Power's current ratio was 2.31 at the end of fiscal 2025: current assets were 2.31 times current liabilities.