OneChicago, LLC (“OneChicago”) is issuing this Notice to Members (“NTM”) 2017-55 to inform market participants that in observance of the upcoming Christmas and New Year’s Day holidays, OneChicago will follow the schedule below, which is consistent with U.S. equity markets.
| Date | Hours |
| Monday, December 25, 2017 | Closed |
| Monday, January 1, 2018 | Closed |
