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Side-by-side financial comparison of Firefly Aerospace Inc. (FLY) and Momentus Inc. (MNTS). Click either name above to swap in a different company.
Firefly Aerospace Inc. is the larger business by last-quarter revenue ($30.8M vs $363.0K, roughly 84.8× Momentus Inc.). On growth, Firefly Aerospace Inc. posted the faster year-over-year revenue change (37.6% vs 27.4%).
Firefly Aerospace, Inc. (Firefly) is an American aerospace firm based in Cedar Park, Texas. Firefly develops small- and medium-lift launch vehicles for commercial launches to orbit. Firefly's stated purpose is to increase access to space, similar to other private spaceflight companies.
Momentus Inc, sometimes styled Momentus space, is an American spaceflight company founded by Mikhail Kokorich in 2017. The company is focused on offering space infrastructure services in the form of on-orbit services. The company advertises three orbital tug services which are based around spacecraft electric propulsion and vary in payload mass and Delta-v. As of late 2022 the company has launched one demonstration mission, which produced mixed results.
FLY vs MNTS — Head-to-Head
Income Statement — Q3 2025 vs Q4 2025
| Metric | | |
|---|---|---|
| Revenue | $30.8M | $363.0K |
| Net Profit | $-133.4M | — |
| Gross Margin | 27.6% | 100.0% |
| Operating Margin | -202.1% | -2446.3% |
| Net Margin | -433.5% | — |
| Revenue YoY | 37.6% | 27.4% |
| Net Profit YoY | -227.1% | — |
| EPS (diluted) | $-1.50 | $-45.15 |
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 | — | $363.0K | ||
| Q3 25 | $30.8M | $234.0K | ||
| Q2 25 | $15.5M | $191.0K | ||
| Q1 25 | — | $322.0K | ||
| Q4 24 | — | $285.0K | ||
| Q3 24 | $22.4M | $107.0K | ||
| Q2 24 | $21.1M | $1.2M | ||
| Q1 24 | — | $513.0K |
| Q4 25 | — | — | ||
| Q3 25 | $-133.4M | $-11.1M | ||
| Q2 25 | $-63.8M | $-6.5M | ||
| Q1 25 | — | $-6.2M | ||
| Q4 24 | — | — | ||
| Q3 24 | $-40.8M | $-7.8M | ||
| Q2 24 | $-53.5M | $-7.0M | ||
| Q1 24 | — | $-8.3M |
| Q4 25 | — | 100.0% | ||
| Q3 25 | 27.6% | 100.0% | ||
| Q2 25 | 25.7% | 99.0% | ||
| Q1 25 | — | 100.0% | ||
| Q4 24 | — | 100.0% | ||
| Q3 24 | 34.7% | 38.3% | ||
| Q2 24 | 14.0% | 100.0% | ||
| Q1 24 | — | 100.0% |
| Q4 25 | — | -2446.3% | ||
| Q3 25 | -202.1% | -2669.2% | ||
| Q2 25 | -349.5% | -3112.0% | ||
| Q1 25 | — | -1920.8% | ||
| Q4 24 | — | -2385.6% | ||
| Q3 24 | -152.9% | -7096.3% | ||
| Q2 24 | -232.1% | -576.0% | ||
| Q1 24 | — | -1623.2% |
| Q4 25 | — | — | ||
| Q3 25 | -433.5% | -4732.5% | ||
| Q2 25 | -410.2% | -3377.0% | ||
| Q1 25 | — | -1916.8% | ||
| Q4 24 | — | — | ||
| Q3 24 | -182.3% | -7250.5% | ||
| Q2 24 | -253.7% | -580.3% | ||
| Q1 24 | — | -1620.5% |
| Q4 25 | — | $-45.15 | ||
| Q3 25 | $-1.50 | $-1.08 | ||
| Q2 25 | $-5.78 | $-1.23 | ||
| Q1 25 | — | $-1.64 | ||
| Q4 24 | — | $-392.58 | ||
| Q3 24 | $-3.57 | $-6.26 | ||
| Q2 24 | $-4.60 | $-5.92 | ||
| Q1 24 | — | $-9.25 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $995.2M | $12.8M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $948.8M | $17.1M |
| Total Assets | $1.3B | $40.3M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | — | $12.8M | ||
| Q3 25 | $995.2M | $670.0K | ||
| Q2 25 | $205.3M | $132.0K | ||
| Q1 25 | — | $3.4M | ||
| Q4 24 | — | $1.6M | ||
| Q3 24 | $26.4M | $798.0K | ||
| Q2 24 | $21.9M | $897.0K | ||
| Q1 24 | — | $1.7M |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | $136.1M | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | — | $17.1M | ||
| Q3 25 | $948.8M | $-694.0K | ||
| Q2 25 | $-918.0M | $-10.0M | ||
| Q1 25 | — | $-6.0M | ||
| Q4 24 | — | $-7.8M | ||
| Q3 24 | $-665.5M | $-5.4M | ||
| Q2 24 | $-620.0M | $-1.8M | ||
| Q1 24 | — | $3.5M |
| Q4 25 | — | $40.3M | ||
| Q3 25 | $1.3B | $19.6M | ||
| Q2 25 | $466.8M | $9.2M | ||
| Q1 25 | — | $11.7M | ||
| Q4 24 | — | $10.0M | ||
| Q3 24 | — | $14.1M | ||
| Q2 24 | — | $15.0M | ||
| Q1 24 | — | $18.7M |
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 | $-53.0M | $-10.5M |
| Free Cash FlowOCF − Capex | $-62.0M | — |
| FCF MarginFCF / Revenue | -201.3% | — |
| Capex IntensityCapex / Revenue | 29.0% | — |
| Cash ConversionOCF / Net Profit | — | — |
| TTM Free Cash FlowTrailing 4 quarters | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | — | $-10.5M | ||
| Q3 25 | $-53.0M | $-5.3M | ||
| Q2 25 | — | $-3.2M | ||
| Q1 25 | — | $-4.2M | ||
| Q4 24 | — | $-5.7M | ||
| Q3 24 | — | $-4.5M | ||
| Q2 24 | — | $-1.1M | ||
| Q1 24 | — | $-5.3M |
| Q4 25 | — | — | ||
| Q3 25 | $-62.0M | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | — | — | ||
| Q3 25 | -201.3% | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | — | — | ||
| Q3 25 | 29.0% | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | 0.0% | ||
| Q3 24 | — | 0.0% | ||
| Q2 24 | — | 0.0% | ||
| Q1 24 | — | 0.0% |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
FLY
| Spacecraft Solutions Revenue | $21.4M | 69% |
| Launch Revenue | $9.4M | 31% |
MNTS
Segment breakdown not available.
