Effective February 2, 2026, Cboe Options Exchange (C1) will update exchange designated spreads comprising Quoted Spread Book Box Spreads and Box Swaps from 5000 and 6000 strikes to 6000 and 7000 strikes.

Currently, customers can access exchange designated Quoted Spread Book spreads each day using Exchange Designated Complex Instrument Definition messages on Complex PITCH and TOP data feeds. In addition, users can access designated spreads on the Quoted Spread Book Reference Data page.

Upon the effective date, the presented Box Spreads and Box Swaps will change from using 5000 and 6000 strikes to using 6000 and 7000 strikes.

Customers should rely on the market data feeds and/or the reference data to obtain information on current Quoted Spread Book symbols.