Revision History

VersionDateDescription
1.0.004/02/24Initial version.
1.0.106/21/24Minor correction made to figure 1.
1.0.201/22/25Updated with Cboe Titanium branding.
1.0.307/02/25Updated 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).
1.0.407/21/25Updated description of QSB Box Spread and QSB Box Swap instruments to indicate 1000 wide Box Spreads.
1.0.508/11/25Updated Complex Quote Update and Complex Quote Update (short) message effective date to 09/15/25.
1.0.604/01/26Introduced Cboe Prediction Markets (CPM) XSP Vertical Spreads designed instruments (effective 06/15/26 06/01/26).
1.0.705/14/26Updated XSP Vertical spreads effective date to 06/15/26.
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Cboe Titanium Cboe Quoted Spread Book User Manual - Revision History | Cboe