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Side-by-side financial comparison of AEMETIS, INC (AMTX) and Montauk Renewables, Inc. (MNTK). Click either name above to swap in a different company.
Montauk Renewables, Inc. is the larger business by last-quarter revenue ($43.4M vs $43.3M, roughly 1.0× AEMETIS, INC). On growth, Montauk Renewables, Inc. posted the faster year-over-year revenue change (56.7% vs -7.9%). AEMETIS, INC produced more free cash flow last quarter ($-10.8M vs $-41.1M). Over the past eight quarters, Montauk Renewables, Inc.'s revenue compounded faster (5.8% CAGR vs -22.8%).
Aemetis, Inc. is a renewable fuels and sustainable biochemicals producer operating across North America and India. Its core products include low-carbon ethanol, renewable natural gas and biodiesel, serving transportation, industrial and agricultural sectors with decarbonization solutions for commercial clients.
Montauk Renewables, Inc. is a US-based renewable energy firm specializing in capturing and converting biogenic methane from landfills and agricultural waste into renewable natural gas (RNG) and low-carbon electricity. It serves utility, commercial, and industrial customers across North America, with operations focused on advancing decarbonization and sustainable energy transition goals.
AMTX vs MNTK — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $43.3M | $43.4M |
| Net Profit | — | $2.5M |
| Gross Margin | 17.8% | — |
| Operating Margin | -5.7% | -3.8% |
| Net Margin | — | 5.7% |
| Revenue YoY | -7.9% | 56.7% |
| Net Profit YoY | — | 129.5% |
| EPS (diluted) | $-0.03 | $0.01 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q4 25 | $43.3M | $43.4M | ||
| Q3 25 | $59.2M | $45.3M | ||
| Q2 25 | $52.2M | $45.1M | ||
| Q1 25 | $42.9M | $42.6M | ||
| Q4 24 | $47.0M | $27.7M | ||
| Q3 24 | $81.4M | $65.9M | ||
| Q2 24 | $66.6M | $43.3M | ||
| Q1 24 | $72.6M | $38.8M |
| Q4 25 | — | $2.5M | ||
| Q3 25 | $-23.7M | $5.2M | ||
| Q2 25 | $-23.4M | $-5.5M | ||
| Q1 25 | $-24.5M | $-464.0K | ||
| Q4 24 | — | $-8.5M | ||
| Q3 24 | $-17.9M | $17.0M | ||
| Q2 24 | $-29.2M | $-712.0K | ||
| Q1 24 | $-24.2M | $1.9M |
| Q4 25 | 17.8% | — | ||
| Q3 25 | -0.1% | — | ||
| Q2 25 | -6.4% | — | ||
| Q1 25 | -11.8% | — | ||
| Q4 24 | -4.3% | — | ||
| Q3 24 | 4.8% | 43.8% | ||
| Q2 24 | -2.7% | 15.6% | ||
| Q1 24 | -0.8% | 22.8% |
| Q4 25 | -5.7% | -3.8% | ||
| Q3 25 | -14.4% | 9.8% | ||
| Q2 25 | -20.4% | -5.2% | ||
| Q1 25 | -36.3% | 1.0% | ||
| Q4 24 | -28.7% | -35.5% | ||
| Q3 24 | -4.8% | 34.4% | ||
| Q2 24 | -20.4% | 2.0% | ||
| Q1 24 | -13.0% | 6.1% |
| Q4 25 | — | 5.7% | ||
| Q3 25 | -40.1% | 11.5% | ||
| Q2 25 | -44.8% | -12.2% | ||
| Q1 25 | -57.2% | -1.1% | ||
| Q4 24 | — | -30.5% | ||
| Q3 24 | -22.0% | 25.9% | ||
| Q2 24 | -43.8% | -1.6% | ||
| Q1 24 | -33.4% | 4.8% |
| Q4 25 | $-0.03 | $0.01 | ||
| Q3 25 | $-0.37 | $0.04 | ||
| Q2 25 | $-0.41 | $-0.04 | ||
| Q1 25 | $-0.47 | $0.00 | ||
| Q4 24 | $-0.29 | $-0.05 | ||
| Q3 24 | $-0.38 | $0.12 | ||
| Q2 24 | $-0.66 | $-0.01 | ||
| Q1 24 | $-0.58 | $0.01 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $4.9M | $23.8M |
| Total DebtLower is stronger | — | $126.0M |
| Stockholders' EquityBook value | $-306.8M | $263.1M |
| Total Assets | $259.8M | $435.5M |
| Debt / EquityLower = less leverage | — | 0.48× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $4.9M | $23.8M | ||
| Q3 25 | $5.6M | $6.8M | ||
| Q2 25 | $1.6M | $29.1M | ||
| Q1 25 | $499.0K | $40.1M | ||
| Q4 24 | $898.0K | $45.6M | ||
| Q3 24 | $296.0K | $55.0M | ||
| Q2 24 | $234.0K | $42.3M | ||
| Q1 24 | $1.6M | $63.3M |
| Q4 25 | — | $126.0M | ||
| Q3 25 | — | $54.9M | ||
| Q2 25 | — | $57.8M | ||
| Q1 25 | — | $40.8M | ||
| Q4 24 | $338.1M | $43.8M | ||
| Q3 24 | $322.2M | $46.7M | ||
| Q2 24 | $309.0M | $49.7M | ||
| Q1 24 | $307.2M | $52.7M |
| Q4 25 | $-306.8M | $263.1M | ||
| Q3 25 | $-304.9M | $260.7M | ||
| Q2 25 | $-289.3M | $254.7M | ||
| Q1 25 | $-280.7M | $258.2M | ||
| Q4 24 | $-263.9M | $257.4M | ||
| Q3 24 | $-258.9M | $275.3M | ||
| Q2 24 | $-249.0M | $255.3M | ||
| Q1 24 | $-232.1M | $254.3M |
| Q4 25 | $259.8M | $435.5M | ||
| Q3 25 | $241.1M | $383.3M | ||
| Q2 25 | $240.0M | $382.5M | ||
| Q1 25 | $242.5M | $354.2M | ||
| Q4 24 | $259.3M | $349.0M | ||
| Q3 24 | $259.3M | $374.1M | ||
| Q2 24 | $259.3M | $362.0M | ||
| Q1 24 | $259.3M | $354.7M |
| Q4 25 | — | 0.48× | ||
| Q3 25 | — | 0.21× | ||
| Q2 25 | — | 0.23× | ||
| Q1 25 | — | 0.16× | ||
| Q4 24 | — | 0.17× | ||
| Q3 24 | — | 0.17× | ||
| Q2 24 | — | 0.19× | ||
| Q1 24 | — | 0.21× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $5.8M | $337.0K |
| Free Cash FlowOCF − Capex | $-10.8M | $-41.1M |
| FCF MarginFCF / Revenue | -24.9% | -94.7% |
| Capex IntensityCapex / Revenue | 38.2% | 95.5% |
| Cash ConversionOCF / Net Profit | — | 0.14× |
| TTM Free Cash FlowTrailing 4 quarters | $-22.7M | $-86.2M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $5.8M | $337.0K | ||
| Q3 25 | $3.1M | $12.7M | ||
| Q2 25 | $-5.7M | $8.2M | ||
| Q1 25 | $160.0K | $9.1M | ||
| Q4 24 | $-12.6M | $724.0K | ||
| Q3 24 | $-5.0M | $28.6M | ||
| Q2 24 | $-5.1M | $193.0K | ||
| Q1 24 | $-10.3M | $14.3M |
| Q4 25 | $-10.8M | $-41.1M | ||
| Q3 25 | $-1.0M | $-17.2M | ||
| Q2 25 | $-9.3M | $-25.5M | ||
| Q1 25 | $-1.7M | $-2.5M | ||
| Q4 24 | $-19.4M | $-8.3M | ||
| Q3 24 | $-9.5M | $16.0M | ||
| Q2 24 | $-10.5M | $-18.6M | ||
| Q1 24 | $-13.9M | $-7.7M |
| Q4 25 | -24.9% | -94.7% | ||
| Q3 25 | -1.7% | -37.9% | ||
| Q2 25 | -17.7% | -56.4% | ||
| Q1 25 | -3.9% | -5.8% | ||
| Q4 24 | -41.2% | -29.8% | ||
| Q3 24 | -11.6% | 24.3% | ||
| Q2 24 | -15.8% | -42.9% | ||
| Q1 24 | -19.1% | -19.8% |
| Q4 25 | 38.2% | 95.5% | ||
| Q3 25 | 6.9% | 65.9% | ||
| Q2 25 | 6.7% | 74.6% | ||
| Q1 25 | 4.3% | 27.3% | ||
| Q4 24 | 14.4% | 32.5% | ||
| Q3 24 | 5.5% | 19.1% | ||
| Q2 24 | 8.1% | 43.3% | ||
| Q1 24 | 4.9% | 56.7% |
| Q4 25 | — | 0.14× | ||
| Q3 25 | — | 2.43× | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | 1.68× | ||
| Q2 24 | — | — | ||
| Q1 24 | — | 7.73× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
AMTX
| Ethanol Sales | $28.8M | 66% |
| Wet Distillers Grains | $6.8M | 16% |
| California Dairy Renewable Natural Gas | $5.2M | 12% |
| Other | $1.8M | 4% |
MNTK
| Natural Gas Environmental Attributes | $28.1M | 65% |
| Natural Gas Commodity | $10.7M | 25% |
| Electric Commodity | $2.7M | 6% |
| Electric Environmental Attributes | $2.0M | 5% |
