GSM vs RIO.L
GSM: Ferroglobe is a leading global supplier of silicon metal and specialized silicon/manganese alloys essential for industrial manufacturing and emerging critical material supply chains. RIO.L: A diversified global mining giant providing the essential materials for global infrastructure, energy transition, and modern industrial life.
Side-by-side fundamentals
| Metric | GSM | RIO.L | Edge |
|---|---|---|---|
| Price | $4.19 | £70.22 | |
| Market cap | $820M | $119.0B | |
| Net margin | -13.3% | +17.8% | RIO.L higher |
| Operating margin FY2025, SEC XBRL | -10.0% | n/a | |
| ROE | -25.6% | +15.3% | RIO.L higher |
| ROA FY2025, SEC XBRL | -12.5% | n/a | |
| Debt / equity as of 2026-09-03 | 0.36 | n/a | |
| Revenue growth (YoY) as of 2026-09-03 | -11.8% | n/a | |
| Revenue CAGR (3y) SEC XBRL | -19.9% | n/a | |
| Dividend yield as of 2026-09-03 | +1.9% | n/a | |
| Beta as of 2026-09-03 | 0.97 | n/a | |
| 1-year return | -20.5% | +41.7% | RIO.L higher |
Fundamentals: SEC XBRL company filings and annual report 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 2026-10-08.
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.