Notice to Members 2017-52

Date: November 10, 2017
Re: Maintenance to UAT
Effective Date: November 13, 2017

OneChicago, LLC (“OneChicago”) is issuing this Notice to Members (“NTM”) 2017-52 to inform market participants that OneChicago will be performing updates and routine maintenance on our user acceptance testing (“UAT”) environment on Monday, November 13, 2017 from 1600 CT to 1700 CT.  UAT services at this environment will be temporarily unavailable during this time and will resume at 1700 CT.


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If you have any questions, please contact OneChicago Operations at (312) 883-4311 or