Option chain for Ferroglobe PLC - (GSM): calls and puts for every expiration and strike, with quotes, volume, open interest, implied volatility and greeks. As of Oct 28, 2026, GSM had 6 option expirations, from Nov 20, 2026 to Jan 21, 2028, and 281 contracts traded that day. The nearest expiration, Nov 20, 2026, had an at-the-money implied volatility of 51.1% (+35% on the day) and 0 contracts traded; the busiest was Mar 19, 2027, with 182.

For the latest figures, see GSM options overview.

Key numbers

Expirations: at-the-money implied volatility, change on the day, volume

Nov 20, 2026 (23 days): ATM IV 51.1% (+35%), volume 0
Dec 18, 2026 (51 days): ATM IV 38.7% (-0%), volume 0
Jan 15, 2027 (79 days): ATM IV 60.1% (+11%), volume 1
Mar 19, 2027 (142 days): ATM IV 41.9% (-8%), volume 182
Jun 17, 2027 (232 days): ATM IV 46.3% (+1%), volume 0
Jan 21, 2028 (450 days): ATM IV 28.7% (-55%), volume 98

Data as of October 28, 2026.

GSM Option Chain

Detailed and comprehensive option chain for each expiration listed for GSM. Includes volume, open interest, implied volatility, and bid/ask for each strike. Investigate further by clicking on a strike and seeing trade activity, volatility movement, and yesterday's closing values. Use the built-in options profit calculator to see the profit or loss of any GSM options strategy.

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