On Friday, December 23, 2005, commodity futures, foreign exchange, interest rate and GSCI products and CME Weather Options will close at 12:00 noon Central Time (CT), and commodity options will close at 12:02 p.m. CT.  Only equity products traded on the trading floors will have normal trading hours on this day.

Please view the Christmas and New Year’s Holiday Schedules located at

http://www.cme.com/trading/res/cch/christmas_2005833.html and http://www.cme.com/trading/res/cch/2006_new_years834.html  for specifics.

If you have any questions regarding this notice, please contact:

Marilee Radecki                    mradecki@cme.com            312.930.8193                                                           

Kevin Brady                           kbrady@cme.com               312.648.3653