On Saturday, March 11, 2006 CME plans to migrate its production mainframe computer to new hardware at a new physical location.   This transition will be transparent to firms.  In particular, the IP address by which firms connect to CME for MQM messaging and 3270 terminal access will not change.

We would like to remind firm personnel that our systems will not be available on Saturday, March 11, 2006 from 4 a.m. until 8:30 a.m. Firm staff who plan to be in the office this Saturday, March 11, 2006 to review their option exercises and assignments or balance their trades, will find their clearing production reports available in Document Direct and infopac after 8:30 a.m. Firms will be able to view and print reports as they do so in production on a daily basis. Please be aware that any data or adjustments entered or submitted to clearing Saturday, March 11, 2006 will be posted in clearing as regular production.

For the full text of this advisory. . .