Reasonability Notices

Pre Open Reasonability Edit

October 12, 2018 08:50:00

Pre-opening price reasonability checks have been turned off for the following classes on Cboe Options only: AMRN, BLK, BRZU, COUP, CXW, EDC, EDZ, ISRG, ROM, SQ, SQQQ, TQQQ, UVXY, VIIX, VIXY, WLL.