Notice to Members 2018-1

Date: January 8, 2018
Re: Martin Luther King Jr. Holiday Trading Hours

OneChicago, LLC (“OneChicago”) will be closed on Monday, January 15, 2018 in observance of the upcoming Martin Luther King Jr. Holiday, which is consistent with U.S. equity markets. OneChicago will be open on Tuesday, January 16, 2018.

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For questions regarding this notice please contact OneChicago Operations at 1.312.883.3411 or via email at