Notice to Members 2018-7

Date: February 8, 2018
Re: Change to OneChicago OFRA File
Effective Date: February 26, 2018

OneChicago, LLC (“OneChicago”) is issuing this Notice to Members (“NTM”) 2018-7 to inform market participants that beginning with the OFRA files produced on the evening of Monday February 26, OCC will modify the OneChicago OFRA (SPAN Parameter) file to include the expiration day for the exchange’s Friday Futures and Weekly Futures products.

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If you have any questions, please contact The Options Clearing Corporation at 800-621-6072 or