| Tag | Field Name | XML Name | Data Type | Union Datatype | Description | Added | Depr. | Enums from tag |
|---|---|---|---|---|---|---|---|---|
| 308 | UnderlyingSecurityExchange | @Exch | Exchange |
Underlying security’s SecurityExchange. Can be used to identify the underlying security. Valid values: see SecurityExchange (207) | Added FIX.4.2 |
|