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NASDAQ OMX Announces Intent to Modify Existing Rules on "Stub" Quotes

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NEW YORK, June 4, 2010 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group (Nasdaq:NDAQ) today announced that it intends to propose detailed rules to modify existing rules surrounding "stub" quotes within the Nasdaq Stock Market's market-maker and select market-maker programs to more effectively serve market participants, investors and listed companies. The decision is in response to some of the market events that occurred on May 6th that led to the use of "stub" quotes being executed against due to liquidity that was absorbed by selling pressure.

NASDAQ OMX also took the lead this week by announcing the NASDAQ Volatility Guard focused on safeguarding investors during times of high trading stress and remains committed to working with the Commission on protecting investors.

For more information on the NASDAQ Volatility Guard including a video message from Bob Greifeld, the SEC filing and the Wall Street Journal announcement please visit: http://www.nasdaqomx.com/volatilityguard

About NASDAQ OMX Group

The NASDAQ OMX Group, Inc. is the world's largest exchange company. It delivers trading, exchange technology and public company services across six continents, with more than 3,600 listed companies. NASDAQ OMX offers multiple capital raising solutions to companies around the globe, including its U.S. listings market, NASDAQ OMX Nordic, NASDAQ OMX Baltic, NASDAQ OMX First North, and the U.S. 144A sector. The company offers trading across multiple asset classes including equities, derivatives, debt, commodities, structured products and exchange-traded funds. NASDAQ OMX technology supports the operations of over 70 exchanges, clearing organizations and central securities depositories in more than 50 countries.  NASDAQ OMX Nordic and NASDAQ OMX Baltic are not legal entities but describe the common offering from NASDAQ OMX exchanges in Helsinki, Copenhagen, Stockholm, Iceland, Tallinn, Riga, and Vilnius. For more information about NASDAQ OMX, visit http://www.nasdaqomx.com. Please follow NASDAQ OMX on Facebook (http://www.facebook.com/nasdaqomx and Twitter (http://www.twitter.com/nasdaqomx).

NDAQG

CONTACT: The NASDAQ OMX Group, Inc. Media Contacts: Silvia Davi +1 (646) 441-5014 Silvia.Davi@NASDAQOMX.com Wayne Lee +1 (301) 978-4875 Wayne.Lee@NASDAQOMX.com Robert Madden +1 (646) 441-5045 Robert.Madden@NASDAQOMX.com

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