NYMEX Reports Record January 2007 Volume Averaged 1.65 Million Contracts Per Day, Up 45 Percent From Year Ago Period

• Tremendous Increases In Electronic Volumes Set Records Across All Venues
  
• NYMEX Electronic Trading Volume Increases 538%
  
• COMEX Electronic Trading Volume Rises 515%

NYMEX Holdings, Inc. (NYSE:NMX), the parent company of the New York Mercantile Exchange, Inc., announced today that average daily volume set an all–time monthly record in January 2007 of 1.65 million contracts per day, a 45 percent increase from 1.1 million contracts per day in the same period of 2006.

NYMEX electronic volume on the CME Globex® electronic trading platform was 625,000 contracts per day and represented a 538 percent increase over the January 2006 electronic volume on NYMEX ACCESS® . NYMEX floor–traded energy futures and options averaged 396,000 contracts per day for January 2007.

COMEX electronic volume on CME Globex averaged 80,000 contracts per day and represented a 515 percent increase over the January 2006 NYMEX ACCESS electronic volume. COMEX floor–traded average daily volume was 64,000 contracts for January 2007.

Average daily volume on NYMEX ClearPort® increased 57 percent in January 2007 to 418,000 contracts, from 266,000 contracts in the comparable period of 2006. The remaining volume of 69,000 trades per day consisted of other transactions which includes position transfers and exchanges.

Note: The above figures are preliminary and may change slightly due to the fact that the last days of the month have not been finalized and are thus subject to adjustments and corrections. Averages are based on 20 trading days for January.

December Rate Per Contract Gross average rate per contract across all venues in December 2006 was $1.44, while the net rate per contract, excluding transaction costs, was $1.16. This is compared to gross average rate per contract of $1.37, and a net rate per contract of $1.27 for December 2005. Transaction costs were $6.4 million for December 2006 vs. $1.8 million for December 2005.

JANUARY AVERAGE DAILY VOLUMES

Venue		2007		2006
NYMEX floor		395,568		557,442
NYMEX electronic		624,741		97,942
COMEX floor		64,293		153,313
COMEX electronic		79,681		13,179
ClearPort		417,727		265,966
Other		69,316		49,455
Total		1,651,326		1,137,297

DECEMBER 2006 AVERAGE RATES PER CONTRACT

Venue	Net RPC
NYMEX floor	$1.09
NYMEX electronic	$0.70
COMEX floor	$1.17
COMEX electronic	$1.03
ClearPort	$1.63
Other	$1.83
Total Average Net Rate	$1.16
Direct Transaction Cost	$0.28
Gross Average Net Rate	$1.44