CBOT June 23, 2004 Treasury Conversion Factors

The attached conversion factor tables for the CBOT^® U.S. Treasury Bond and Note complex have been revised to include conversion factors for the following government security that was auctioned on June 23 by the U.S. Treasury Department:

1.) 2-3/4s of June 2006 (i.e., a new 2-year note).

This note will be eligible for delivery into the CBOT 2-Year U.S. Treasury Note futures contract for the June and September 2004 expiries only.

The information in this document, although taken from sources believed to be reliable, does not constitute investment advice and is not guaranteed by the Chicago Board of Trade as to its accuracy or completeness, nor any trading result, and is intended for purposes of information and education only. The Rules and Regulations of the Chicago Board of Trade should be consulted as the authoritative source of all current contract specifications and regulations.