New York, N.Y., March 8, 2005 — The New York Mercantile Exchange, Inc., today released the findings of an internal market data study of trading volume and open interest analyzing the participation of hedge funds in two of the Exchange's largest futures markets during 2004.

In the benchmark light, sweet crude oil futures market, hedge fund activity constituted only 2.69% of trading volume, while in the natural gas futures market hedge funds made up 9.05% of trading volume.

As a percentage of open interest, hedge funds constituted 13.4% in the crude oil futures market and 20.4% in the natural gas futures market.

The study analyzed the influence of hedge fund participation on price volatility and included a statistical test for causality. The findings were that hedge fund participation does not cause volatility and, in fact, appears to dampen volatility.

Exchange President James E. Newsome said, "The findings of the study are consistent with our belief that hedge funds do not negatively impact our markets. They generally hold positions significantly longer than other market participants which supports the conclusion that hedge funds are a non-disruptive source of liquidity to the market. With regard to price volatility in the natural gas futures market, when hedge fund activity alone, as well as in connection to inventory changes, the data strongly suggests that changes in hedge fund participation result in decreases in price volatility."

To receive a copy of the study by email, contact the press office at pressoffice@nymex.com.

# # #

Forward Looking and Cautionary Statements
This press release may contain forward–looking statements within the meaning of the Private Securities Litigation Reform Act, with respect to our future performance, operating results, strategy, and other future events. Such statements generally include words such as could, can, anticipate, believe, expect, seek, pursue, and similar words and terms, in connection with any discussion of future results. Forward–looking statements involve a number of assumptions, risks, and uncertainties, any of which may cause actual results to differ materially from the anticipated, estimated, or projected results referenced in forward–looking statements. In particular, the forward–looking statements of NYMEX Holdings, Inc., and its subsidiaries are subject to the following risks and uncertainties: the success and timing of new futures contracts and products; changes in political, economic, or industry conditions; the unfavorable resolution of material legal proceedings; the impact and timing of technological changes and the adequacy of intellectual property protection; the impact of legislative and regulatory actions, including without limitation, actions by the Commodity Futures Trading Commission; and terrorist activities and international hostilities, which may affect the general economy as well as oil and other commodity markets. We assume no obligation to update or supplement our forward–looking statements.
Contact Us
Media Room

Keep updated on all relevant futures and options press releases, videos, tweets and reports pertaining to our derivatives market.

Most Recent

CME Group is the world’s leading derivatives marketplace. The company is comprised of four Designated Contract Markets (DCMs). 
Further information on each exchange's rules and product listings can be found by clicking on the links to CME, CBOT, NYMEX and COMEX.

© 2026 CME Group Inc. All rights reserved.