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Side-by-side financial comparison of Firefly Aerospace Inc. (FLY) and 908 Devices Inc. (MASS). Click either name above to swap in a different company.
Firefly Aerospace Inc. is the larger business by last-quarter revenue ($30.8M vs $17.4M, roughly 1.8× 908 Devices Inc.). 908 Devices Inc. runs the higher net margin — 24.0% vs -433.5%, a 457.5% gap on every dollar of revenue. On growth, Firefly Aerospace Inc. posted the faster year-over-year revenue change (37.6% vs 21.2%). 908 Devices Inc. produced more free cash flow last quarter ($1.3M vs $-62.0M).
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.
908 Devices Inc. develops and manufactures portable, high-performance mass spectrometry devices and analytical solutions. Its products serve use cases across life science research, biopharmaceutical manufacturing, public safety, forensics, and industrial process monitoring, catering to global customers including research institutions, pharmaceutical firms and government agencies.
FLY vs MASS — Head-to-Head
Income Statement — Q3 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $30.8M | $17.4M |
| Net Profit | $-133.4M | $4.2M |
| Gross Margin | 27.6% | 52.7% |
| Operating Margin | -202.1% | 17.8% |
| Net Margin | -433.5% | 24.0% |
| Revenue YoY | 37.6% | 21.2% |
| Net Profit YoY | -227.1% | 121.5% |
| EPS (diluted) | $-1.50 | $0.09 |
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 | — | $17.4M | ||
| Q3 25 | $30.8M | $14.0M | ||
| Q2 25 | $15.5M | $13.0M | ||
| Q1 25 | — | $11.8M | ||
| Q4 24 | — | $14.3M | ||
| Q3 24 | $22.4M | $14.5M | ||
| Q2 24 | $21.1M | $11.5M | ||
| Q1 24 | — | $7.4M |
| Q4 25 | — | $4.2M | ||
| Q3 25 | $-133.4M | $-15.0M | ||
| Q2 25 | $-63.8M | $-13.3M | ||
| Q1 25 | — | $43.6M | ||
| Q4 24 | — | $-19.4M | ||
| Q3 24 | $-40.8M | $-29.3M | ||
| Q2 24 | $-53.5M | $-12.5M | ||
| Q1 24 | — | $-10.9M |
| Q4 25 | — | 52.7% | ||
| Q3 25 | 27.6% | 52.5% | ||
| Q2 25 | 25.7% | 48.9% | ||
| Q1 25 | — | 47.0% | ||
| Q4 24 | — | 46.5% | ||
| Q3 24 | 34.7% | 53.6% | ||
| Q2 24 | 14.0% | 53.8% | ||
| Q1 24 | — | 52.4% |
| Q4 25 | — | 17.8% | ||
| Q3 25 | -202.1% | -116.6% | ||
| Q2 25 | -349.5% | -116.3% | ||
| Q1 25 | — | -93.6% | ||
| Q4 24 | — | -116.8% | ||
| Q3 24 | -152.9% | -168.7% | ||
| Q2 24 | -232.1% | -74.5% | ||
| Q1 24 | — | -102.5% |
| Q4 25 | — | 24.0% | ||
| Q3 25 | -433.5% | -107.0% | ||
| Q2 25 | -410.2% | -102.1% | ||
| Q1 25 | — | 370.2% | ||
| Q4 24 | — | -135.6% | ||
| Q3 24 | -182.3% | -201.8% | ||
| Q2 24 | -253.7% | -109.5% | ||
| Q1 24 | — | -147.1% |
| Q4 25 | — | $0.09 | ||
| Q3 25 | $-1.50 | $-0.41 | ||
| Q2 25 | $-5.78 | $-0.37 | ||
| Q1 25 | — | $1.23 | ||
| Q4 24 | — | $-0.58 | ||
| Q3 24 | $-3.57 | $-0.84 | ||
| Q2 24 | $-4.60 | $-0.37 | ||
| Q1 24 | — | $-0.33 |
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 | $113.0M |
| Total DebtLower is stronger | — | — |
| Stockholders' EquityBook value | $948.8M | $143.7M |
| Total Assets | $1.3B | $190.1M |
| Debt / EquityLower = less leverage | — | — |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | — | $113.0M | ||
| Q3 25 | $995.2M | $112.1M | ||
| Q2 25 | $205.3M | $118.6M | ||
| Q1 25 | — | $124.3M | ||
| Q4 24 | — | $69.6M | ||
| Q3 24 | $26.4M | $71.7M | ||
| Q2 24 | $21.9M | $77.4M | ||
| Q1 24 | — | $134.2M |
| Q4 25 | — | — | ||
| Q3 25 | — | — | ||
| Q2 25 | $136.1M | — | ||
| Q1 25 | — | — | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
| Q4 25 | — | $143.7M | ||
| Q3 25 | $948.8M | $136.3M | ||
| Q2 25 | $-918.0M | $148.8M | ||
| Q1 25 | — | $159.4M | ||
| Q4 24 | — | $114.6M | ||
| Q3 24 | $-665.5M | $131.0M | ||
| Q2 24 | $-620.0M | $156.4M | ||
| Q1 24 | — | $156.9M |
| Q4 25 | — | $190.1M | ||
| Q3 25 | $1.3B | $190.9M | ||
| Q2 25 | $466.8M | $191.7M | ||
| Q1 25 | — | $196.0M | ||
| Q4 24 | — | $159.5M | ||
| Q3 24 | — | $178.3M | ||
| Q2 24 | — | $208.8M | ||
| Q1 24 | — | $189.8M |
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 | $1.3M |
| Free Cash FlowOCF − Capex | $-62.0M | $1.3M |
| FCF MarginFCF / Revenue | -201.3% | 7.6% |
| Capex IntensityCapex / Revenue | 29.0% | 0.0% |
| Cash ConversionOCF / Net Profit | — | 0.32× |
| TTM Free Cash FlowTrailing 4 quarters | — | $-24.7M |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | — | $1.3M | ||
| Q3 25 | $-53.0M | $-4.2M | ||
| Q2 25 | — | $-5.8M | ||
| Q1 25 | — | $-15.0M | ||
| Q4 24 | — | $-2.2M | ||
| Q3 24 | — | $-5.6M | ||
| Q2 24 | — | $-13.0M | ||
| Q1 24 | — | $-9.4M |
| Q4 25 | — | $1.3M | ||
| Q3 25 | $-62.0M | $-4.9M | ||
| Q2 25 | — | $-5.9M | ||
| Q1 25 | — | $-15.2M | ||
| Q4 24 | — | $-2.4M | ||
| Q3 24 | — | $-5.8M | ||
| Q2 24 | — | $-13.7M | ||
| Q1 24 | — | $-10.3M |
| Q4 25 | — | 7.6% | ||
| Q3 25 | -201.3% | -34.9% | ||
| Q2 25 | — | -45.3% | ||
| Q1 25 | — | -128.9% | ||
| Q4 24 | — | -17.0% | ||
| Q3 24 | — | -39.7% | ||
| Q2 24 | — | -119.4% | ||
| Q1 24 | — | -138.2% |
| Q4 25 | — | 0.0% | ||
| Q3 25 | 29.0% | 4.9% | ||
| Q2 25 | — | 0.9% | ||
| Q1 25 | — | 1.4% | ||
| Q4 24 | — | 1.3% | ||
| Q3 24 | — | 1.1% | ||
| Q2 24 | — | 5.6% | ||
| Q1 24 | — | 12.2% |
| Q4 25 | — | 0.32× | ||
| Q3 25 | — | — | ||
| Q2 25 | — | — | ||
| Q1 25 | — | -0.34× | ||
| Q4 24 | — | — | ||
| Q3 24 | — | — | ||
| Q2 24 | — | — | ||
| Q1 24 | — | — |
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% |
MASS
| Products | $14.3M | 82% |
| Services | $3.0M | 18% |
