Call Spread Calculator

This Call Spread Calculator can analyze P/L and Greeks of a call spread at different times until expiry. The modeled IV can be adjusted per-leg, and you can find 1 year of volatility history in our free tool to find out the typical IV range for your spread.

Pro users can see the volatility skew chart alongside one year of historical ranges and directly adjust the strikes on it. The skew chart is available to first-time users for a limited amount of time for exploration.

A 30DTE net 20 delta Credit Call Spread (a.k.a Bear Call Spread) on SPY is selected by default to get you started. Simply switch to any other ticker and adjust the legs to analyze your own trade.