Logout Message Fields
| Tag | Field Name | Required | Description |
|---|---|---|---|
| 35 | MsgType | Y | 5 |
| 58 | Text | N | Indicates reason for Logout. |
Either side may issue a Logout message to gracefully close the session. The side that issues the logout should process messages normally until it sees the logout reply, and then break the TCP connection. Cboe will typically only request logout after the scheduled end of FIX session.