Deep Fission, Inc. (FISN) vs Power Solutions International, Inc. (PSIX)
A side-by-side comparison of Deep Fission, Inc. and Power Solutions International, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 27, 2026. Differences are shown without an overall score or investment verdict.
FISN
Deep Fission, Inc.
$6.93IndustrialsDelayed quote: Aug 27, 2026, 4:00 PM EDT
PSIX
Power Solutions International, Inc.
$37.77IndustrialsDelayed quote: Aug 27, 2026, 4:00 PM EDT
Total return — FISN vs PSIX
growth of $100 · dividends reinvested · last 1yFISN -52.7% (-52.7%/yr)PSIX -5.9% (-5.9%/yr)PSIX compounded faster over this window
FISN PSIX
FISN vs PSIX: by the numbers
- •PSIX is the larger company ($871M vs $418M market cap).
- •PSIX is profitable (10.03% net margin) while FISN runs a net loss (0.00%).
Metrics side by side
Valuation
| Metric | FISN | PSIX |
|---|---|---|
| P/E ratio | N/A | 12.42 |
| Forward P/E | N/A | 12.52 |
| P/S ratio | N/A | 1.25 |
| P/B ratio | 3.84 | 4.16 |
| EV / EBITDA | N/A | 9.50 |
| FCF yield | N/A | 7.94% |
Profitability
| Metric | FISN | PSIX |
|---|---|---|
| Gross margin | 0.00% | 23.73% |
| Operating margin | 0.00% | 13.00% |
| Net margin | 0.00% | 10.03% |
| ROE | -107.56% | 33.41% |
| ROIC | -72.19% | 21.64% |
Growth (annualized)
| Metric | FISN | PSIX |
|---|---|---|
| Revenue CAGR (5Y) | N/A | 9.42% |
| EPS CAGR (5Y) | N/A | 53.38% |
| FCF CAGR (5Y) | N/A | 26.17% |
| Total return CAGR (5Y) | N/A | 48.15% |
Frequently asked
- Is FISN or PSIX more profitable?
- PSIX runs the higher net margin — FISN at 0.00% versus PSIX at 10.03%.
Go deeper
Dig into the metrics
Power Solutions International P/E ratioDeep Fission ROEPower Solutions International ROEDeep Fission operating marginPower Solutions International operating marginDeep Fission revenue growthPower Solutions International revenue growthDeep Fission free cash flowPower Solutions International free cash flow
Deep Fission & Power Solutions International appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified August 27, 2026.