Stocks Comparison
Montauk Renewables vs OPAL Fuels: revenue, profit, margins and growth compared
Montauk Renewables brought in $176.4M of revenue in fiscal 2025, OPAL Fuels $349M in fiscal 2025. Revenue changed by +0.4% at Montauk Renewables and +16.3% at OPAL Fuels on the year before, so OPAL Fuels grew faster. Montauk Renewables kept 1.0% of its revenue as net profit, OPAL Fuels 1.2%. Free cash flow was -$86.2M at Montauk Renewables and -$34.2M at OPAL Fuels.
Side by side, latest fiscal year
| MNTK | OPAL | |
|---|---|---|
| Fiscal year ended | FY2025 (December 31, 2025) | FY2025 (December 31, 2025) |
| Revenue | $176.4M | $349M |
| Revenue growth | +0.4% | +16.3% |
| Net income | $1.7M | $4.3M |
| Net margin | 1.0% | 1.2% |
| Free cash flow | -$86.2M | -$34.2M |
| Free cash flow margin | -48.9% | -9.8% |
| Earnings per share (diluted) | $0.01 | $0.15 |
| Cash | $23.8M | $24.4M |
| Debt | $126M | $361.3M |
| Price to earnings | 293.0 | 12.3 |
| Market value | $417.1M | $323.3M |
| Dividend yield | n/a | n/a |
| Rank by revenue in sector | #94 of 109 · Utilities | #92 of 109 · Utilities |
Over the years
Questions about Montauk Renewables and OPAL Fuels
Which is bigger by revenue, Montauk Renewables or OPAL Fuels?
OPAL Fuels is bigger by revenue: $349M in fiscal 2025, against $176.4M for Montauk Renewables in fiscal 2025.
Which keeps more of its revenue as profit, Montauk Renewables or OPAL Fuels?
Montauk Renewables had a net margin of 1.0% in fiscal 2025; OPAL Fuels had 1.2% in fiscal 2025.
Which grew revenue faster, Montauk Renewables or OPAL Fuels?
In their latest fiscal years revenue changed by +0.4% at Montauk Renewables and +16.3% at OPAL Fuels.
Where do these numbers come from?
From the annual reports each company files with the SEC (10-K, or 20-F and 40-F for foreign companies), read from their XBRL data. Margins and growth are simple arithmetic on those figures. Nothing here is a recommendation.