This notice contains updated information on the following topics:

§         FX Options MDP Message Changes

§         Addition of New CME Globex ITC channels  delayed until December 14, 2007

FX Options MDP Message Changes

Beginning Sunday, December 2, 2007, FX Options market data messages on both Channels 5 and 205 will carry the appropriate expiration indicator (“A” – American-style or “E” – European-style) for all messages types, including “Q” messages (settlement prices).

In our previous notice, Q2007-283 , quote vendors were advised that they could expect to see a change in MDP messages for FX Options.  Specifically, Channel 5 displays an “A” for both American and European-style, while Channel 205 displays “A” for American-style and “E” for European-style option expiration.

For the sake of consistency, beginning Sunday, December 2, 2007 , all FX options market data messages (types “b”, “t” and “Q”) will include the appropriate expiration indicator (“A” or “E”), regardless of MDP channel designation.

New ITC Channels – December 14, 2007

To provide additional testing time for all quote vendors, CME Group is delaying the implementation of the new CME Globex ITC Channels on the MDP until Friday , December 14, 2007.  At that time, Channels 4-6 will be decommissioned and replaced by Channels 200-207 .