The Exchange has announced changes in Exchange minimum margin requirements to be effective as of the close of business, Thursday, February 9, 2006;

These changes are detailed on the Exchange’s website at www.cbot.com/cbot/pub/page/0,3181,136,00.html#Changes.

Questions in this regard may be directed to Bruce Domash, 312-341-5989 or bdomash@cbot.com.