Semi-annual review of OMX Helsinki 25 index

July 20, 2009 Press Release Semi-annual review of OMX Helsinki 25 index Stockholm, Helsinki, July 20, 2009 - The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ) announced today the results of the semi-annual review of the OMX Helsinki 25 index (OMXH25), which will become effective with the market open on Monday, August 3, 2009. As a result of the review M-real Corporation B will be replaced by Talvivaara Mining Company Plc in the OMXH25 index. “It is exciting to see that the fast growing industrial company Talvivaara Mining qualifies for OMXH25 after just a few months of trading on NASDAQ OMX Helsinki. The OMXH25 index has a history of over twenty years and is the most widely used Finnish index”, says Magdalena Hartman, Vice President of the NASDAQ OMX Global Index Group. The OMXH25 index is a free float adjusted and quarterly capped index consisting of the 25 most traded shares on the Helsinki stock market. The combination of few constituents and high correlation with the market provides the investors with an attractive tool for Finnish exposure. The index is suitable as an underlying for derivatives, ETFs, structured products and mutual funds. The ten percent capping is effective the first trading day in February, May, August and November. The semi-annual review is effective the first trading day in February and August. The index has been calculated since 1988 and has a base value of 500. Effective August 3, 2009, the OMXH25 index constituents are: Cargotec Oyj Elisa Corporation Fortum Corporation Konecranes Plc Kesko Corporation B KONE Corporation Metso Corporation Nordea Bank AB (publ) FDR Neste Oil Corporation Nokia Corporation Nokian Tyres Plc Orion Corporation B Outotec Oyj Outokumpu Oyj Pohjola Bank A Rautaruukki Corporation Sanoma Corporation Sampo Plc A Stora Enso Oyj R Tieto Corporation TeliaSonera AB Talvivaara Mining Company Plc UPM-Kymmene Corporation Wärtsilä Corporation YIT Corporation About NASDAQ OMX Index Products NASDAQ OMX is a global leader in creating and licensing strategy indexes and is home to the most widely watched indexes in the world. As a premier, full-service provider, NASDAQ OMX is dedicated to designing powerful indexes that are in sync with a continually changing market environment. Utilizing the expanded coverage of our global company, NASDAQ OMX has nearly 1,500 diverse equity, commodity and fixed-income indexes in the U.S., Europe, and throughout world. In addition, our calculation, licensing and marketing support provide the tools to measure and replicate global markets. The NASDAQ OMX Index Group range of services covers the entire business process from index design to calculation and dissemination. For more information about NASDAQ OMX indexes, visit https://indexes.nasdaqomx.com/. Access to historical index data for NASDAQ OMX indexes can be accessed from a single source, NASDAQ OMX Global Index Watch. For additional information, please visit https://indexes.nasdaqomx.com/indexwatch.aspx. About NASDAQ OMX 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 over 3,800 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. Cautionary Note Regarding Forward-Looking Statements The matters described herein contain forward-looking statements that are made under the Safe Harbor provisions of the Private Securities Litigation Reform Act of 1995. These statements include, but are not limited to, statements about NASDAQ OMX's products and offerings. We caution that these statements are not guarantees of future performance. Actual results may differ materially from those expressed or implied in the forward-looking statements. Forward-looking statements involve a number of risks, uncertainties or other factors beyond NASDAQ OMX's control. These factors include, but are not limited to factors detailed in NASDAQ OMX's annual report on Form 10-K, and periodic reports filed with the U.S. Securities and Exchange Commission. We undertake no obligation to release any revisions to any forward-looking statements. There can be no assurance that the FSA will give the NASDAQ OMX applicant the authorization and permissions which it seeks. - # - CONTACTS: The NASDAQ OMX Group, Inc. Media Contact: Ellen-Margrethe Soelberg +45 3377 0430 ellen-margrethe.soelberg@nasdaqomx.com NASDAQ OMX Issuer and Investor Contact: Lukas Larsson Sivard +46 8 405 7131 lukas.larssonsivard@nasdaqomx.com NDAQG

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