Advanced settings allow you to select the underlying contract type and increase days to expiration.
Not all options are available for all models:
•Black, Black-Scholes, Bourtov, and Garman-Kohlhagen – Modifications only
•Whaley – Modifications and Dividends amount
•Merton – Modifications, Underlying contract type, Dividends amount
•Cox-Ross-Rubinstein – All
Contract style
Select American or European.
Underlying contract type
Select Futures or Indices, Stocks, etc. or click the select automatically check box.
Type a value for the percentage of the underlying price for the dividends amount.
Modifications
Type a value for how many days you want to increase the expiration by. You can also use the arrows. This is useful for contracts that are deliverable or settle after the last trading day.