Comments on CBOE Rulemaking

Notice of Filing of a Proposed Rule Change Related to FLEX Options

(Release No. 34-66052; File No. SR-CBOE-2011-123)

Mar. 20, 2012	Jennifer M. Lamie, Asssistant General Counsel, Chicago Board Options Exchange, Incorporated, Chicago, Illinois
Feb. 7, 2012	Jonathan Grodnick, CTC, LLC, Managing Director, CTC Trading Group, L.L.C.
Jan. 19, 2012	Todd Weingart, Chicago, Illinois