AMPX vs SLDP
AMPX: Amprius Technologies develops high-energy-density lithium-ion batteries using a proprietary silicon anode platform for demanding aerospace and electric mobility applications. SLDP: Solid Power develops proprietary sulfide-based solid-state electrolyte materials and battery cell designs intended to replace traditional liquid electrolytes in high-performance electric vehicle batteries.
Side-by-side fundamentals
| Metric | AMPX | SLDP | Edge |
|---|---|---|---|
| Price as of 2026-10-20 close | $7.58 | $2.02 | |
| Market cap | $1.1B | $461M | |
| Net margin FY2025, SEC XBRL | -60.3% | -429.5% | AMPX higher |
| Gross margin FY2025, SEC XBRL | +11.3% | n/a | |
| Operating margin FY2025, SEC XBRL | -63.9% | -463.7% | AMPX higher |
| ROE FY2025, SEC XBRL | -42.4% | -22.5% | SLDP higher |
| ROA FY2025, SEC XBRL | -28.1% | -20.5% | SLDP higher |
| Revenue growth (YoY) FY2025, SEC XBRL | +202.1% | +8.0% | AMPX higher |
| Revenue CAGR (3y) SEC XBRL | +154.9% | +22.6% | AMPX higher |
| Dividend streak (yrs) SEC XBRL | 0 | 0 | Tie |
| Beta as of 2026-09-03 | 2.61 | 1.68 | |
| 1-year return as of 2026-10-20 close | -44.0% | -69.0% | AMPX higher |
Fundamentals: SEC XBRL company filings for the figures marked with a fiscal year, and market data, as of 2026-09-03 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.