As a reminder, starting Sunday, June 3, 2007,CME^® will begin permitting new trades, bids/asks, strike prices and settlements to occur at prices of 0 (zero).  This change is initially being made to accommodate the CME^® Snowfall Index and Snowfall Seasonal Strip futures along with other anticipated CME^® products.     We anticipate introducing similar products with pricing (trades, bids/asks, strikes and settlements) that may be negative, zero or positive.

THE ATTACHED NOTICE CONTAINS NEW INFORMATION THAT HAS CHANGED FROM THE ORIGINAL NOTICE (Q2006-228) THAT WAS PUBLISHED ON DECEMBER 12, 2006. THE UPDATED INFORMATION IS HIGHLIGHTED IN BOLD- FACE TYPE.