Effective March 1, 2010, CME Group will being disseminating Preliminary Prior Day Volume and Open Interest messages (both in ITC and FIX/FAST) for the previous trading date every Monday through Friday at approximately 1:00 a.m. (Chicago Time) for CME, CBOT, NYMEX, COMEX and DME. We will continue to send the Preliminary Prior Day Volume and Open Interest on Sundays at approximately 3:00 p.m. Chicago Time. This 1:00 a.m. transmission will be in addition to the current Preliminary and Final Volume and Open Interest messages dissemination schedule.
Contact Market Data Operations (MDO) at firstname.lastname@example.org, if you have any questions concerning this notice. Thank you.