

CME Group/Chicago HQ
Main Switchboard
Local: 312-930-1000
Toll Free: 866-716-7274
Customer Service
Product inquiries, website issues, and specific questions
Phone: 800-331-3332
E-mail:info@cmegroup.com
More CME Group Direct Lines
Click for phone list by department
On CME Group recognized holidays, open outcry trading and CME Globex trading observes different opening and closing times, depending on markets traded. Opening and closing times are also affected on the business days prior to or after a holiday in both open outcry and CME Globex trading.
Click here to view normal trading hours
Please note that this schedule is subject to change. Hours are usually finalized approximately two weeks prior to the holiday.
Advisory Notice: CME Group Holiday Schedule for December 31, 2010