Ferroglobe (GSM) Options Chain
NASDAQ: GSMBasic MaterialsMetal MiningUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Jan 15, 2027
- Days to expiration
- 96
- Share price
- $4.24
- Put/call ratio (OI)
- 0.05
- Put/call ratio (volume)
- 0.71
- Expected move
- ±$0.7085
- Open interest (C / P)
- 1.47K / 71
GSM options summary
The GSM options chain for the January 15, 2027 expiration lists 8 call and 4 put contracts, with 96 days until expiration. Open interest stands at 1,472 calls and 71 puts, a put/call ratio of 0.05, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $4.00 strike is 32.6%, which implies the market expects a move of about ±$0.7085 (16.7%) in Ferroglobe stock by expiration.
The most open interest sits at the $4.00 call (724 contracts) and the $5.00 put (45 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
GSM options chain · January 15, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 3.40 | 2.70 | 3.80 | 1.00 | — | — | — | |||||
| 2.35 | 1.90 | 2.65 | 2.00 | — | — | — | |||||
| 1.25 | 1.00 | 1.75 | 3.00 | 0.00 | 0.75 | 0.15 | |||||
| 0.75 | 0.50 | 0.80 | 4.00 | 0.00 | 0.00 | 0.50 | |||||
| 0.35 | 0.05 | 0.45 | 5.00 | 0.65 | 1.40 | 0.96 | |||||
| 0.34 | 0.00 | 0.45 | 6.00 | — | — | — | |||||
| 0.49 | 0.10 | 0.40 | 7.00 | — | — | — | |||||
| 0.40 | 0.00 | 2.75 | 10.00 | 5.90 | 7.30 | 6.26 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the GSM put/call ratio?
For the January 15, 2027 expiration, the GSM put/call ratio based on open interest is 0.05 (71 puts vs 1,472 calls), and 0.71 based on today's volume. A ratio above 1 means more puts than calls.
What is GSM's implied volatility?
At-the-money implied volatility for GSM options expiring January 15, 2027 is about 32.6%, an annualized estimate of how much the market expects Ferroglobe stock to move.
How many GSM option expiration dates are there?
GSM has 6 listed expiration dates, from Oct 16, 2026 to Jan 21, 2028.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.