News Release

CME Group Clarifies Maintenance Margin Ratios - Exchange to Reduce Initial Margin Ratio to 1.00

Sat Nov 05 2011

CHICAGO, Nov. 5, 2011 /PRNewswire/ -- CME Group today is clarifying its notice to clearing firms regarding margins.  In light of the issues customers transferring out of MF Global are facing, while still maintaining appropriate risk management protections for the market, CME Clearing is setting the "initial" margin upcharge to zero. This upcharge is normally applied to customer accounts when they are receiving a margin call.

The intention and effect of these changes are to decrease the size of any margin calls resulting from the bulk transfer of MF Global customers to new clearing members not to increase them.

This is a short term accommodation to maintain market integrity and provide temporary relief to customers whose accounts have been disrupted by this event.

We apologize for any confusion our initial advisory may have created.

As the world's leading and most diverse derivatives marketplace, CME Group (www.cmegroup.com) is where the world comes to manage risk.  CME Group exchanges offer the widest range of global benchmark products across all major asset classes, including futures and options based on interest rates, equity indexes, foreign exchange, energy, agricultural commodities, metals, weather and real estate.  CME Group brings buyers and sellers together through its CME Globex® electronic trading platform and its trading facilities in New York and Chicago.  CME Group also operates CME Clearing, one of the world's leading central counterparty clearing providers, which offers clearing and settlement services for exchange-traded contracts, as well as for over-the-counter derivatives transactions through CME ClearPort®. These products and services ensure that businesses everywhere can substantially mitigate counterparty credit risk in both listed and over-the-counter derivatives markets.

CME Group is a trademark of CME Group Inc. The Globe Logo, CME, Globex and Chicago Mercantile Exchange are trademarks of Chicago Mercantile Exchange Inc.  CBOT and the Chicago Board of Trade are trademarks of the Board of Trade of the City of Chicago, Inc.  NYMEX, New York Mercantile Exchange and ClearPort are registered trademarks of New York Mercantile Exchange, Inc.  COMEX is a trademark of Commodity Exchange, Inc.  All other trademarks are the property of their respective owners. Further information about CME Group (NASDAQ: CME) and its products can be found at www.cmegroup.com.  CME-G

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