Revision History
| Version | Date | Description |
|---|---|---|
| 1.0.0 | 04/02/24 | Initial version. |
| 1.0.1 | 06/21/24 | Minor correction made to figure 1. |
| 1.0.2 | 01/22/25 | Updated with Cboe Titanium branding. |
| 1.0.3 | 07/02/25 | Updated Introduction to indicate MMs will be able to use BOE Complex Quote Update and Complex Quote Update (Short) messages to quote QSB instruments over BOE Bulk Quoting Ports (effective 09/15/25 08/18/25). |
| 1.0.4 | 07/21/25 | Updated description of QSB Box Spread and QSB Box Swap instruments to indicate 1000 wide Box Spreads. |
| 1.0.5 | 08/11/25 | Updated Complex Quote Update and Complex Quote Update (short) message effective date to 09/15/25. |
| 1.0.6 | 04/01/26 | Introduced Cboe Prediction Markets (CPM) XSP Vertical Spreads designed instruments (effective 06/15/26 06/01/26). |
| 1.0.7 | 05/14/26 | Updated XSP Vertical spreads effective date to 06/15/26. |





