Neutral strategy · Intermediate
Market outlook Neutral
Short call and put at same strike benefit from flatness.
Each row reprices every live leg independently. Entry premiums stay fixed.
| Underlying price | Move | Profit / loss |
|---|
Dollar-scaled for each leg's quantity, multiplier, expiry, and IV. Theta is per day; vega and rho are per one percentage-point move.
| Leg | Delta | Theta/day | Vega |
|---|
Strike configurations
Add protective long wings above and below the strike to cap the unlimited risk.
Key difference: Trades some premium income for a defined maximum loss.
Adjustment: See the iron butterfly strategy.
Best for: Traders who want the short straddle's income profile without naked risk.
Sell out-of-the-money call and put strikes instead of the same at-the-money strike.
Key difference: Lower premium collected but a much wider range in which the stock can move and the trade still profits.
Best for: Traders who want theta income with a larger margin for error.
Common questions
Both legs are naked short options with no protective wings, so a large move in either direction can produce losses far exceeding the premium collected — the loss potential is theoretically unlimited on the call side.
When implied volatility is elevated relative to what the trader expects to actually realize, and the stock is expected to stay close to the current price through expiration.
Significant margin — both legs are uncovered, so brokers require substantial collateral reflecting the undefined risk, far more than a defined-risk spread of similar size.
Yes — adding protective long wings above and below the strike converts it into an iron butterfly, capping the risk in exchange for a smaller net credit.
Deep dive
Detailed explanations, management techniques, and real-world scenarios
Scenario Lab
Explore how this position changes before expiration
Quick reference
Quick answers about when to use, capital needed, and key risks
Profit and loss
Compare max profit, max loss and break-even across common strategies
Custom calculator
Combine calls, puts, stock, quantities and different expirations
Risk sensitivity
Inspect Delta, Gamma, Theta, Vega and Rho
Same market view
Every neutral structure on the site, ranked by risk and capital needed
Same experience level
Structures with a comparable learning curve to the short straddle
Head-to-head
Structure, cost, and breakeven differences compared side by side
This calculator uses exact intrinsic value at a leg’s expiration and Black–Scholes theoretical value while that leg remains open. Position Greeks use the same visible legs and model assumptions. Results exclude fees, tax, liquidity, margin, early exercise and assignment behavior. Educational illustration only—not financial advice.