Based on customer requests, beginning Sunday, November 22, 2009, CME Group will start disseminating Preliminary Volume and Open Interest messages (both in ITC and FIX/FAST) for the previous trading date every Sunday at approximately 3:00 p.m. (Chicago Time) for CME, CBOT, NYMEX, COMEX and DME. This will be in addition to the current Preliminary Volume and Open Interest messages, which are disseminated every Monday at approximately 6:50 a.m. (Chicago Time).
All other Preliminary and Final Volume and Open Interest messages will be disseminated at their regular times.
Contact Market Data Operations (MDO) at mdo@cmegroup.com, if you have any questions.