Specifies the boundary condition to be used for the strike price relative to the underlying price at the point of option exercise.
| Code | Meaning | 
|---|---|
| 1 | Less than underlying price is in-the-money (ITM) | 
| 2 | Less than or equal to the underlying price is in-the-money(ITM) | 
| 3 | Equal to the underlying price is in-the-money(ITM) | 
| 4 | Greater than or equal to underlying price is in-the-money(ITM) | 
| 5 | Greater than underlying is in-the-money(ITM) |