| Tag | Field Name | XML Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|---|
| 1189 | TimeToExpiration | @TmToExp | float |
Time to expiration in years calculated as the number of days remaining to expiration divided by 365 days per year. | Added FIX.5.0 EP51 |
|