Please be advised that the Proxy Statement and Proxy Card in connection with the Annual Meeting of Stockholders of NYMEX Holdings, Inc. scheduled to be held on May 1, 2006 were mailed to NYMEX's Stockholders who were Stockholders of record on April 13, 2006 (also filed with the SEC and available on www.sec.gov). Please note that if your address of record is a maildrop at One North End Avenue, you can obtain the documents from that location. If you have not received these documents, please contact Donna Talamo at 212-299-2372.

PLEASE NOTE THAT ONLY ONE (1) PROXY CARD WAS PROVIDED TO EACH STOCKHOLDER REGARDLESS OF THE NUMBER OF TRADING RIGHTS OR NUMBER OF SHARES OWNED BY THE STOCKHOLDER. THE ONE (1) PROXY CARD WILL COVER ALL OF THE SHARES OF THE COMPANY THAT THE STOCKHOLDER OWNS OR HOLDS VIA AN ABC AGREEMENT.

Stockholders are reminded and encouraged to submit their proxy in connection with this meeting. If you have any questions, please contact:

Ms. Donna Talamo
Vice President
Office of the Corporate Secretary
NYMEX Holdings, Inc.
One North End Avenue
New York , NY 10282
Ph: 212-299-2372
Fax: 212-301-4645
dtalamo@nymex.com