Montauk Renewables, Inc. (MNTK) Key Metrics
MNTK valuation today
Trailing 12 months · as of October 18, 2026- Market cap
- $304.6M
- Enterprise value
- $465.2M
- P/E (TTM)
- 35.7 10-yr median 71.5
- Forward P/E
- 8.0
- PEG ratio
- —
- Price / sales
- 1.6 10-yr median 7.2
- Price / book
- 1.2 10-yr median 5.1
- EV / EBITDA
- 11.1 10-yr median 23.5
- Dividend yield
- —
- Beta
- 0.66
MNTK key metrics, 2018–2025
Fiscal year ended December 31, 2025 · U.S. dollarsMNTK valuation Price multiples at each fiscal year-end price.
MNTK returns How much profit the business earns on the capital it uses.
MNTK per-share figures Results divided by the shares outstanding at year-end.
MNTK financial health Debt, liquidity and how easily interest is covered.
MNTK efficiency & capital use Working capital cycle and where the cash goes.
MNTK valuation history
MNTK returns on capital
Net income (ROE, ROA) or after-tax operating income (ROIC) divided by the average of the opening and closing balance.
MNTK debt vs cash
Debt includes short- and long-term borrowings and, where reported, lease liabilities.
MNTK cash returned to shareholders
MNTK price vs earnings per share
MNTK key metrics
2018–2025| 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|
| Valuation | ||||||||
| Market capitalization | $238.9M | $566.7M | $1.27B | $1.57B | $1.45B | — | — | — |
| Enterprise value | $353.1M | $584.0M | $1.26B | $1.54B | $1.47B | — | — | — |
| P/E ratio | 136.7 | 58.2 | 84.7 | 44.7 | — | — | — | — |
| Price / sales | 1.4 | 3.2 | 7.2 | 7.7 | 9.8 | — | — | — |
| Price / book | 0.9 | 2.2 | 5.1 | 6.9 | 7.9 | — | — | — |
| Price / free cash flow | — | — | — | 26.8 | 43.9 | — | — | — |
| Price / operating cash flow | 7.9 | 12.9 | 30.9 | 19.4 | 33.7 | — | — | — |
| EV / sales | 2.0 | 3.3 | 7.2 | 7.5 | 9.9 | — | — | — |
| EV / EBITDA | 10.9 | 14.3 | 28.2 | 23.5 | 57.9 | — | — | — |
| EV / free cash flow | — | — | — | 26.3 | 44.7 | — | — | — |
| Earnings yield | 0.7% | 1.7% | 1.2% | 2.2% | −0.3% | — | — | — |
| Free cash flow yield | −36.1% | −3.3% | −1.7% | 3.7% | 2.3% | — | — | — |
| Dividend yield | — | — | — | 0.5% | 5.5% | — | — | — |
| Shareholder yield (dividends + buybacks) | 0.2% | 0.3% | 0.0% | 0.5% | 6.3% | — | — | — |
| Share price at fiscal year-end | $1.67 | $3.98 | $8.91 | $11.03 | $10.25 | — | — | — |
| Per share | ||||||||
| Revenue per share | $1.23 | $1.23 | $1.23 | $1.44 | $1.05 | $0.71 | $0.74 | $0.82 |
| Earnings per share | $0.01 | $0.07 | $0.11 | $0.25 | −$0.03 | $0.03 | $0.04 | $0.20 |
| Operating cash flow per share | $0.21 | $0.31 | $0.29 | $0.57 | $0.30 | $0.20 | $0.19 | $0.35 |
| Free cash flow per share | −$0.60 | −$0.13 | −$0.16 | $0.41 | $0.23 | $0.08 | −$0.13 | $0.07 |
| Cash per share | $0.17 | $0.32 | $0.52 | $0.74 | $0.38 | $0.15 | $0.07 | $0.38 |
| Book value per share | $1.84 | $1.81 | $1.76 | $1.59 | $1.29 | $1.12 | $1.09 | $1.05 |
| Tangible book value per share | $1.70 | $1.68 | $1.63 | $1.48 | $1.19 | $1.02 | $1.00 | $0.96 |
| Dividends per share | — | — | — | $0.06 | $0.57 | $0.00 | $0.00 | $0.08 |
| Capex per share | $0.81 | $0.44 | $0.44 | $0.16 | $0.07 | $0.12 | $0.32 | $0.28 |
| Debt per share | $0.96 | $0.44 | $0.48 | $0.53 | $0.56 | $0.47 | $0.47 | $0.66 |
| Shares outstanding | 143.1M | 142.4M | 142.2M | 142.6M | 141.0M | 142.2M | 142.2M | 141.1M |
| Change in shares outstanding | +0.5% | +0.2% | −0.3% | +1.1% | −0.8% | 0.0% | +0.8% | — |
| Returns & profitability | ||||||||
| Return on equity (ROE) | 0.7% | 3.8% | 6.3% | 17.2% | −2.6% | 2.9% | 3.9% | 19.4% |
| Return on invested capital (ROIC) | 1.0% | 5.0% | 8.7% | 17.8% | 1.3% | 1.4% | 5.5% | 15.1% |
| Return on assets (ROA) | 0.4% | 2.8% | 4.4% | 11.4% | −1.7% | 1.9% | 2.3% | 11.0% |
| Return on tangible assets | 0.4% | 2.9% | 4.5% | 11.1% | −1.7% | 1.9% | 2.5% | 11.6% |
| Free cash flow margin | −48.9% | −10.5% | −12.6% | 28.6% | 22.2% | 11.0% | −16.8% | 8.2% |
| Income quality (OCF / net income) | 17.35 | 4.50 | 2.75 | 2.30 | — | 6.23 | 4.72 | 1.73 |
| Financial health | ||||||||
| Total debt | $137.9M | $62.9M | $68.1M | $76.2M | $79.5M | $66.4M | $67.3M | $93.0M |
| Cash & short-term investments | $23.8M | $45.6M | $73.8M | $105.2M | $53.3M | $21.0M | $9.8M | $54.0M |
| Net debt | $114.2M | $17.3M | −$5.7M | −$29.0M | $26.3M | $45.4M | $57.6M | $38.9M |
| Debt / equity | 0.52 | 0.24 | 0.27 | 0.34 | 0.44 | 0.42 | 0.44 | 0.63 |
| Debt / assets | 0.32 | 0.18 | 0.19 | 0.23 | 0.28 | 0.26 | 0.28 | 0.36 |
| Net debt / EBITDA | 3.54 | 0.42 | −0.13 | −0.44 | 1.03 | 1.81 | 1.87 | 0.70 |
| Current ratio | 1.11 | 1.71 | 3.07 | 4.40 | 3.06 | 1.14 | 0.99 | 2.10 |
| Quick ratio | 1.11 | 1.71 | 3.10 | 4.37 | 3.42 | 1.14 | 0.99 | 2.10 |
| Interest coverage | 1.0 | 3.1 | 4.1 | 24.9 | 1.1 | 0.8 | 2.0 | 11.6 |
| Working capital | $3.7M | $23.7M | $60.8M | $96.5M | $50.6M | $4.0M | −$154,000 | $34.8M |
| Invested capital | $377.3M | $274.7M | $244.5M | $198.1M | $208.6M | $205.0M | $211.8M | $186.9M |
| Tangible asset value | $243.5M | $239.3M | $231.8M | $211.3M | $168.2M | $144.9M | $141.9M | $134.8M |
| Net current asset value | −$135.2M | −$34.4M | −$9.8M | $19.6M | −$29.0M | −$61.2M | −$66.8M | −$47.3M |
| Graham number | $0.71 | $1.67 | $2.04 | $2.97 | — | $0.90 | $1.00 | $2.19 |
| Graham net-net per share | −$0.99 | −$0.28 | −$0.12 | $0.09 | −$0.30 | −$0.48 | −$0.51 | −$0.37 |
| Capital allocation | ||||||||
| Dividends paid | — | — | — | $8.3M | $80.0M | $0 | $0 | $11.8M |
| Share buybacks (net) | $419,000 | $1.8M | $122,000 | $238,000 | $10.8M | $10.8M | $74,000 | $0 |
| Dividend payout ratio | — | — | — | 23.5% | — | 0.0% | 0.0% | 40.9% |
| Dividends + buybacks / free cash flow | — | — | — | 14.5% | 276.1% | 98.0% | — | 123.9% |
| Capex / revenue | 66.1% | 35.5% | 36.1% | 10.8% | 6.7% | 17.6% | 42.8% | 34.9% |
| Capex / operating cash flow | 384.2% | 142.3% | 153.7% | 27.5% | 23.3% | 61.5% | 164.8% | 80.9% |
| Capex / depreciation | 3.89 | 2.65 | 2.98 | 1.08 | 0.41 | 0.74 | 1.96 | 2.48 |
| Stock-based compensation / revenue | 2.5% | 5.7% | 4.8% | 4.8% | 15.1% | 0.8% | 0.5% | 0.6% |
| SG&A / revenue | 18.0% | 20.6% | 19.7% | 16.6% | 28.7% | 16.5% | 12.9% | 10.4% |
| Efficiency | ||||||||
| Days sales outstanding | 18.7 | 21.8 | 30.2 | 30.6 | 29.2 | 28.0 | 36.2 | 35.0 |
| Days of inventory on hand | — | — | 0.2 | -14.5 | -20.9 | 0.0 | 0.0 | — |
| Days payables outstanding | 41.5 | 31.2 | 24.1 | 17.2 | 25.5 | 29.0 | 26.1 | 33.1 |
| Cash conversion cycle (days) | -22.8 | -9.4 | 6.4 | -1.0 | -17.2 | -0.9 | 10.2 | 1.9 |
| Receivables turnover | 19.51 | 16.76 | 12.07 | 11.92 | 12.49 | 13.02 | 10.07 | 10.44 |
| Payables turnover | 8.79 | 11.71 | 15.17 | 21.28 | 14.29 | 12.59 | 13.99 | 11.03 |
| Inventory turnover | — | — | — | — | — | 17,639.48 | 8,381.71 | — |
| Asset turnover | 0.45 | 0.50 | 0.51 | 0.66 | 0.55 | 0.40 | 0.42 | 0.44 |
| Average receivables | $9.0M | $10.5M | $14.5M | $17.2M | $11.9M | $7.7M | $10.5M | $11.0M |
| Average payables | $12.2M | $8.4M | $6.2M | $4.8M | $5.5M | $4.9M | $4.2M | $4.5M |
| Average inventory | — | — | $47,000 | −$4.0M | −$4.5M | $3,500 | $7,000 | — |
| Intangibles / total assets | 4.5% | 5.2% | 5.3% | 4.7% | 4.9% | 5.8% | 5.1% | 5.0% |
Computed from MNTK's annual financial statements (latest annual report filed March 11, 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.
MNTK valuation and financial ratios
At the end of fiscal 2025 (December 31, 2025), Montauk Renewables traded at 136.7 times earnings, against a 8-year median of 71.5. Based on the latest twelve months, the trailing P/E is 35.7 and the forward P/E is 8.0. Montauk Renewables earned a return on equity of 0.7% and a return on invested capital of 1.0% in fiscal 2025. It ended the year with $137.9 million of debt and $23.8 million in cash and short-term investments, net debt of $114.2 million. It returned $0.4 million to shareholders: $0 in dividends and $0.4 million in share buybacks.
See the MNTK income statement, the MNTK chart for price history, or the MNTK stock overview for the latest quote and news.
MNTK key metrics FAQ
What is Montauk Renewables's P/E ratio?
Montauk Renewables's trailing P/E ratio is 35.7 based on the last twelve months of earnings (as of October 18, 2026), and its forward P/E is 8.0. At the end of fiscal 2025 it was 136.7, compared with a 8-year median of 71.5.
What is Montauk Renewables's EV/EBITDA?
Montauk Renewables's enterprise value was 10.9 times EBITDA at the end of fiscal 2025 (enterprise value $353.1 million, EBITDA $32.3 million); the current EV/EBITDA is 11.1.
What is Montauk Renewables's return on equity?
Montauk Renewables's return on equity (ROE) was 0.7% in fiscal 2025: net income of $1.7 million on average shareholders' equity of $260.3 million.
What is Montauk Renewables's ROIC?
Montauk Renewables's return on invested capital was 1.0% in fiscal 2025, using after-tax operating income divided by average debt plus equity minus cash.
How much debt does Montauk Renewables have?
Montauk Renewables had total debt of $137.9 million at the end of fiscal 2025, a debt-to-equity ratio of 0.52 and $114.2 million of net debt (3.54 times EBITDA).
Does Montauk Renewables buy back its shares?
Yes. Montauk Renewables spent $0.4 million on net share repurchases in fiscal 2025 Shares outstanding changed +0.5% over the year, to 143.1M..
What is Montauk Renewables's free cash flow yield?
Montauk Renewables generated -$86.2 million of free cash flow in fiscal 2025, a free cash flow yield of −36.1% on its market value at year-end ($238.9 million).
What is Montauk Renewables's current ratio?
Montauk Renewables's current ratio was 1.11 at the end of fiscal 2025: current assets were 1.11 times current liabilities.