Quoted Spread Book Overview
Quoted Spread Book (QSB) is a service from Cboe that enables Market Makers to rest orders directly in the Complex Order Books (COBs) of select Exchange Designated Box Spread, Box Swap and Jelly Roll complex instruments on the Cboe Exchange during Regular Trading Hours (RTH). See the Quoted Spread Book User Manual for details on the Box Spread, Box Swap and Jelly Roll complex that are covered by QSB.
Prior to QSB, Market Makers (MM) were not allowed to rest orders in SPX/SPXW option COBs during RTH. By allowing MMs to rest orders in select COBs Cboe customers will have the option to trade commonly traded spread instruments electronically against lit MM quotes in RTH, which historically were traded mostly in open outcry. See the Quoted Spread Book FAQ for answers to commonly asked questions.
With QSB, the Cboe Exchange designates select commonly traded spread instruments to exist and disseminates symbol reference data for those instruments prior to the start of the RTH session. Symbol reference data are available on the exchange Reference Data page and over Complex PITCH and TOP data feeds via the Exchange Designated Complex Instrument Definition message. See the Quoted Spread Book User Manual for symbol reference data access details, and the Complex PITCH and TOP data feed specifications for information on accessing symbol reference data over data feeds.
Quoted Spread Book Spreads
See the Quoted Spread Book User Manual for detail on the specific expiration combinations for Box Swaps and Jelly Rolls and for additional detail on Jelly Roll designated spreads.
More Information
For additional detail on the covered spreads and accessing the symbols each trading date see the following:
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