Effective Monday, July 10, 2006, CME will list an additional four (4) quarterly S&P 500 options contract months.  These additional listings will expand the S&P 500 options offering to a full two years. Please note that these additional contracts will follow current CME rules and will be floor based only. After hours Globex trading practices will be unchanged.

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

Marilee Radecki                                312.930.8193                        mradecki@cme.com

Kevin Brady                                      312.648.3653                        kbrady@cme.com

Thank you.