News Release

CME Group Provides Operating Expense and Capital Expenditure Guidance for the Second Half of 2007

Fri Sep 28 2007

CHICAGO, Sept. 28 /PRNewswire-FirstCall/ -- CME Group (NYSE; Nasdaq: CME), the world's largest and most diverse exchange, today updated CME operating expense and capital expenditure guidance for the second half of 2007.

For the last six months of 2007, CME Group expects operating expenses, excluding merger-related costs for restructuring and integration, to total $425 to $430 million. This total includes $30 million for amortization of purchased intangibles resulting from the merger. The company expects operating expenses on a GAAP basis to total $460 to $470 million, which includes approximately $35 to $40 million of merger-related restructuring and integration costs. Non-operating expenses will increase as a result of recognition of the ERP guarantee and financing of the fixed price tender offer.

For the last six months of 2007, the company expects capital expenditures to total between $95 and $105 million, net of leasehold allowances, which includes the acceleration of the CME Globex and trading floor cutovers and continued expansion of data centers to support future growth.

The above statements are forward looking and actual results may differ materially. Please see "Note Regarding Forward-Looking Statements" at the end of this news release for a description of certain risk factors and CME Group's annual and quarterly reports on file with the Securities and Exchange Commission (SEC) for a more complete description of risks.

CME Group will provide operating expense and capital expenditure guidance for the full year 2008 when the company reports its full year 2007 results.

CME Group (http://www.cmegroup.com/) is the world's largest and most diverse exchange. Formed by the 2007 merger of the Chicago Mercantile Exchange Holdings and CBOT Holdings, CME Group serves the risk management needs of customers around the globe. As an international marketplace, CME Group brings buyers and sellers together on the CME Globex electronic trading platform and on its trading floors. CME Group offers the widest range of benchmark products available across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, agricultural commodities and alternative investment products such as weather and real estate. CME Group's Class A common stock is traded on the New York Stock Exchange and the Nasdaq Global Select Market under the symbol "CME."

The Globe logo, CME, Chicago Mercantile Exchange, CME Group, Globex and E-mini, are trademarks of Chicago Mercantile Exchange Inc. CBOT and Chicago Board of Trade are trademarks of the Board of Trade of the City of Chicago. All other trademarks are the property of their respective owners. Further information about CME Group and its products can be found at http://www.cmegroup.com/.

Note Regarding Forward-Looking Statements

Statements in this news release that are not historical facts are forward- looking statements. These statements are not guarantees of future performance and involve risks, uncertainties and assumptions that are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed or implied in any forward-looking statements. Among the factors that might affect our performance are: our ability to successfully integrate the businesses of CME Holdings and CBOT Holdings, including the fact that such integration may be more difficult, time consuming or costly than expected; revenues following the merger may be lower than expected; increasing competition by foreign and domestic competitors, including new entrants into our markets; our ability to keep pace with rapid technological developments, including our ability to complete the development and implementation of the enhanced functionality required by our customers; our ability to continue introducing competitive new products and services on a timely, cost-effective basis, including through our electronic trading capabilities, and our ability to maintain the competitiveness of our existing products and services; our ability to adjust our fixed costs and expenses if our revenues decline; our ability to continue to realize the benefits of our transaction processing services provided to third parties; our ability to maintain existing customers and attract new ones; our ability to expand and offer our products in foreign jurisdictions; changes in domestic and foreign regulations; changes in government policy, including policies relating to common or directed clearing; the costs associated with protecting our intellectual property rights and our ability to operate our business without violating the intellectual property rights of others; our ability to generate revenue from our market data that may be reduced or eliminated by the growth of electronic trading and the redundancies in the market data offerings of Chicago Mercantile Exchange Inc. and Board of Trade of the City of Chicago, Inc.; changes in the rate per contract due to shifts in the mix of the products traded, the trading venue and the mix of customers (whether the customer receives member or non-member fees or participates in one of our various incentive programs) and the impact of tiered pricing; the ability of our financial safeguards package to adequately protect us from the credit risk of clearing firms; changes in price levels and volatility in the derivatives markets and in underlying fixed income, equity, foreign exchange and commodities markets; economic, political and market conditions; our ability to accommodate increases in trading volume without failure or degradation of performance of our systems; our ability to execute our growth strategy and maintain our growth effectively; our ability to manage the risks and control the costs associated with our acquisition, investment and alliance strategy; industry and customer consolidation; decreases in trading and clearing activity; the imposition of a transaction tax on futures and options on futures transactions; and seasonality of the derivatives business. More detailed information about factors that may affect our performance may be found in our filings with the Securities and Exchange Commission, including our most recent Quarterly Report on Form 10-Q, which is available in the Investor Relations section of the CME Group Web site. We undertake no obligation to publicly update any forward-looking statements, whether as a result of new information, future events or otherwise.

CME-G

SOURCE: CME Group

CONTACT: Media, Anita Liskey, +1-312-466-4613, or William Parke,
+1-312-930-3467, both at news@cmegroup.com, or Investors, John Peschier,
+1-312-930-8491, all of CME Group

Web site: http://www.cme.com/
http://cmegroup.mediaroom.com/

Corporate Communications

+1 312 930 3434
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