CQS Order Entry Symbology

For both BOE and FIX order entry, you may send the entire Cboe formatted CQS symbol including Cboe suffix in Symbol (FIX Tag 55)

-OR-

Send the root prefix in Symbol and either the CQS or CMS suffix in SymbolSfx (FIX Tag 65).

Cboe Titanium U.S. Equities/Options/Futures Symbology Reference - CQS Order Entry Symbology | Cboe