IMSR vs SMR
IMSR: Terrestrial Energy is developing a proprietary Generation IV Integral Molten Salt Reactor (IMSR) to provide clean, high-temperature thermal energy and electricity for industrial and grid-scale applications. SMR: NuScale Power is a developer of small modular nuclear reactor technology designed to provide scalable, carbon-free energy for the global power and industrial markets.
Side-by-side fundamentals
| Metric | IMSR | SMR | Edge |
|---|---|---|---|
| Price as of 2026-10-20 close | $2.80 | $5.58 | |
| Market cap | $297M | $2.4B | |
| Net margin | -4624.6% | -1130.3% | SMR higher |
| Gross margin FY2025, SEC XBRL | n/a | +36.3% | |
| Operating margin | -4168.8% | -2190.6% | SMR higher |
| ROE FY2025, SEC XBRL | -9.5% | -30.4% | IMSR higher |
| ROA FY2025, SEC XBRL | -9.2% | -25.2% | IMSR higher |
| Revenue growth (YoY) FY2025, SEC XBRL | n/a | -15.0% | |
| Revenue CAGR (3y) SEC XBRL | n/a | +38.7% | |
| Dividend streak (yrs) SEC XBRL | 0 | 0 | Tie |
| Beta as of 2026-09-02 | 4.55 | 2.97 | |
| 1-year return as of 2026-10-20 close | n/a | -87.4% |
Fundamentals: SEC XBRL company filings for the figures marked with a fiscal year, and market data, as of 2026-09-02 for the rest. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-10-20.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & market data, shown with their as-of date; "Edge" cells are a pure numeric comparison, not a recommendation.