Notice to Members NTM2017-23

Date: April 17, 2017
Re: Maintenance to UAT
Effective Date: April 18, 2017

OneChicago, LLC (“OneChicago”) is issuing this Notice to Members (“NTM”) 2017-23 to inform market participants that OneChicago will be performing updates and routine maintenance on our user acceptance testing (“UAT”) environment on Tuesday, April 18, 2017 from 16:30 CT to 18:00 CT.  UAT services at this environment will be temporarily unavailable during this time and will resume at 18:00 CT.


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