GSM Straddle Strategy
GSM (Ferroglobe PLC), in the Basic Materials sector, (Industrial Materials industry), listed on NASDAQ.
Ferroglobe PLC operates in the silicon and specialty metals industry in the United States, Europe, and internationally. It provides silicone chemicals that are used in a range of applications, including personal care items, construction-related products, health care products, and electronics, as well as silicon metal for primary and secondary aluminum producers; silicomanganese, which is used as deoxidizing agent in the steel manufacturing process; and ferromanganese that is used as a deoxidizing, desulphurizing, and degassing agent in the removal of nitrogen and other harmful elements from steel. The company also offers ferrosilicon products that are used to produce stainless steel, carbon steel, and various other steel alloys, as well as to manufacture electrodes and aluminum; calcium silicon, which is used in the deoxidation and desulfurization of liquid steel, and production of coatings for cast iron pipes, as well as in the welding process of powder metal and in pyrotechnics; and nodularizers and inoculants, which are used in the production of iron. In addition, it provides silica fume, a by-product of the electrometallurgical process of silicon metal and ferrosilicon. Further, the company operates quartz mines in Spain, South Africa, the United States, and Canada; and low-ash metallurgical coal mines in the United States, as well as holds interests in hydroelectric power plant in France. It serves silicone chemical, aluminum, and steel manufacturers; auto companies and their suppliers; ductile iron foundries; manufacturers of photovoltaic solar cells and computer chips; and concrete producers.
GSM (Ferroglobe PLC) trades in the Basic Materials sector, specifically Industrial Materials, with a market capitalization of approximately $725.0M, a beta of 1.03 versus the broader market, a 52-week range of 3.51-5.74, average daily share volume of 1.3M, a public-listing history dating back to 2009, approximately 3K full-time employees. These structural characteristics shape how GSM stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 1.03 places GSM roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. GSM pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a straddle on GSM?
A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration.
Current GSM snapshot
As of May 15, 2026, spot at $3.95, ATM IV 26.80%, IV rank 1.96%, expected move 7.68%. The straddle on GSM below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 34-day expiry.
Why this straddle structure on GSM specifically: GSM IV at 26.80% is on the cheap side of its 1-year range, which favors premium-buying structures like a GSM straddle, with a market-implied 1-standard-deviation move of approximately 7.68% (roughly $0.30 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated GSM expiries trade a higher absolute premium for lower per-day decay. Position sizing on GSM should anchor to the underlying notional of $3.95 per share and to the trader's directional view on GSM stock.
GSM straddle setup
The GSM straddle below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With GSM near $3.95, the first option leg uses a $3.95 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed GSM chain at a 34-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 GSM shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $3.95 | N/A |
| Buy 1 | Put | $3.95 | N/A |
GSM straddle risk and reward
- Net Premium / Debit
- N/A
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- Unbounded
- Breakeven(s)
- None on modeled curve
- Risk / Reward Ratio
- N/A
Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit.
GSM straddle payoff curve
Modeled P&L at expiration across a range of underlying prices for the straddle on GSM. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.
When traders use straddle on GSM
Straddles on GSM are pure-volatility plays that profit from large moves in either direction; traders typically buy GSM straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.
GSM thesis for this straddle
The market-implied 1-standard-deviation range for GSM extends from approximately $3.65 on the downside to $4.25 on the upside. A GSM long straddle is a pure-volatility play: it profits when the underlying moves far enough from the strike in either direction to overcome the combined call plus put debit, regardless of direction. Current GSM IV rank near 1.96% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on GSM at 26.80%. As a Basic Materials name, GSM options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to GSM-specific events.
GSM straddle positions are structurally neutral / high-volatility (long premium); the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. GSM positions also carry Basic Materials sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move GSM alongside the broader basket even when GSM-specific fundamentals are unchanged. Always rebuild the position from current GSM chain quotes before placing a trade.
Frequently asked questions
- What is a straddle on GSM?
- A straddle on GSM is the straddle strategy applied to GSM (stock). The strategy is structurally neutral / high-volatility (long premium): A long straddle buys an ATM call and an ATM put at the same strike, profiting from a large move in either direction; max loss equals the combined debit when the underlying pins to the strike at expiration. With GSM stock trading near $3.95, the strikes shown on this page are snapped to the nearest listed GSM chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are GSM straddle max profit and max loss calculated?
- Upside max profit is unbounded; downside max profit is bounded at the strike minus the combined call plus put debit (reached at zero). Max loss equals the combined debit times 100 (reached when the underlying pins to the strike). Two breakevens at strike plus debit and strike minus debit. For the GSM straddle priced from the end-of-day chain at a 30-day expiry (ATM IV 26.80%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a GSM straddle?
- The breakeven for the GSM straddle priced on this page is no defined breakeven on the modeled curve at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current GSM market-implied 1-standard-deviation expected move is approximately 7.68%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a straddle on GSM?
- Straddles on GSM are pure-volatility plays that profit from large moves in either direction; traders typically buy GSM straddles ahead of earnings, FDA decisions, or other catalysts where the realized move is expected to exceed the implied move priced into the chain.
- How does current GSM implied volatility affect this straddle?
- GSM ATM IV is at 26.80% with IV rank near 1.96%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.