PRESS RELEASE May 6, 2009 New OMX Copenhagen Benchmark portfolio selected The new portfolio of OMX Copenhagen Benchmark index will become effective on June 2, 2009 Copenhagen, May 6, 2009 - The NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) announces today the results of the semi-annual review of the OMX Copenhagen Benchmark index, (NASDAQ OMX Copenhagen: OMXCB), which will become effective with the market open on Tuesday, June 2, 2009 Nordicom (NRCD) will be added to the index and will be the only new member. As a result of the evaluation, the following six shares will be removed from the OMXCB index: BoConcept Holding B (BOCON B), Århus Elite B (ELITE B), Lastas B (LAST B), Maconomy (MACO), Søndagsavisen a-s (SOEN) and Spar Nord Bank (SPNO). The OMXCB index, a benchmark for the Danish share market, is a free float-capitalization index designed to act as a transparent and liquid benchmark with low transaction costs for the investors. OMXCB is well sector diversified and among the major sectors health care, financials and industrials are found. The securities must also meet other eligibility criteria which include a turnover limit. The Index is evaluated on a semi-annual basis in June and December. OMX Copenhagen Benchmark constituents after review effective June 2, 2009: Novo Nordisk B Genmab NKT Holding PARKEN Sport & Entertainment Vestas Wind Danisco SimCorp TK Development Systems A.P. Møller - Coloplast B Østasiatiske Kompagni Jeudan Mærsk B Danske Bank Jyske Bank A/S Ringkjøbing Atlantic Petroleum P/F Landbobank Carlsberg A/S B TrygVesta D/S Torm Gyldendal B A.P. Møller - G4S plc Bang & Olufsen B Sjælsø Gruppen Mærsk A Nordea Bank AB William Demant Tivoli A/S Renewagy Holding Novozymes B Sydbank Rella Holding A/S Topsil Semiconductor Materials DSV Lundbeck Greentech Energy Brøndby IF B Systems Topdanmark D/S Norden IC Companys Nordicom FLSmidth & Co. GN Store Nord Thrane & Thrane Scandinavian Brake Systems 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/. For more information about the OMX Copenhagen Benchmark Index, including detailed eligibility criteria, visit https://indexes.nasdaqomx.com/. 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. Ellen-Margrethe Soelberg +45 33 77 04 30 ellen-margrethe.soelberg@nasdaqomx.com NDAQF The NASDAQ OMX Group, Inc. 2