Calendar Spread Calculator

Use GammaWins' Calendar Spread Calculator to chart P/L and Greeks of a calendar spread on a single chart that gets updated as you change the expiries and strikes. Adjust Implied Volatility (IV) per expiry to evaluate the impact of changes in volatility regime.

A term structure chart with one year of history is available to Pro users. As a first-time user, you can use the term structure chart for a limited amount of time. Alternatively, you can use our free tool to see the 1-year range of IV for the DTE and moneyness of your contracts, enabling you to analyze realistic scenarios for your trade.

A sample call calendar spread on SPY is loaded on the calculator for demonstration. You can change to any ticker and option contracts to analyze your own strategy.