Input interpretation
![diagonal ratio option spread](../image_source/bcff6331dec78b4556a8e28952e82eea.png)
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%](../image_source/a6ef69798596d66769c9850f469fd91a.png)
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)](../image_source/7f5817f7be6e2000947442d938e6a18d.png)
(the expiration date cannot be before the current date, nor can the time to expiration be negative)