Input interpretation
diagonal ratio option spread
Input values
option name | European first strike price | $45 (US dollars) second strike price | $50 (US dollars) ratio | 0.5 first time to expiration | 2 months second time to expiration | 3 months option type | call underlying price | $49 (US dollars) volatility | 20% dividend yield | 1% risk-free interest rate | 0.12%
Invalid date
(the expiration date cannot be before the current date, nor can the time to expiration be negative)