The Exchange has announced changes in Exchange minimum margin requirements which become effective as of the close of business on Thursday, October 18, 2007. 

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 Nikolai Mazeika, 312-347-4132 or nikolai.mazeika@cmegroup.com.