Semi-annual Review of NASDAQ OMX Carbon Indexes New York, Stockholm, Copenhagen, May 29, 2009 - The NASDAQ OMX Group, Inc. (NASDAQ OMX:NDAQ) announced today the results of the semi-annual review of the NASDAQ OMX Carbon Indexes (Nasdaq:NOCO2), which will become effective with the market open on Monday, June 1, 2009. The tradable versions of the NASDAQ OMX Carbon indexes will from June 1 consist of the European Union Allowances (EUA) and Certified Emission Reduction (CER) futures traded on European Climate Exchange (ECX). The benchmark indexes will consist of EUA futures traded on NordPool, ECX and the European Energy Exchange (EEX) and CER futures traded on ECX. “The NASDAQ OMX Carbon Index Series acts as a barometer and provides investors the opportunity to easily get exposure to the global carbon market,” said Magdalena Hartman, Vice President, NASDAQ OMX Global Index Group. NASDAQ OMX Carbon Indexes were launched in June 2008 as the first global carbon index family calculated by an exchange. The index family is constructed for derivatives products as well as benchmarking purposes for the global carbon market. The NASDAQ OMX Carbon Index series is liquidity based and is made up of six indexes; three benchmark and three tradable indexes. All indexes are calculated in both Euro and U.S. Dollar. The tradable indexes are calculated as excess return and represent the weighted return of the price development in the underlying future contracts, including the roll return. The base value of the indexes was 500.00 as of June 16, 2008. The Indexes are reviewed on a semi-annual basis in December and June. For more information about the NASDAQ OMX Carbon Indexes, visit: http://indexes.nasdaqomx.com. 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 Global 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/. 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 Wayne Lee, NASDAQ OMX +1-301-978-4875 Wayne.D.Lee@NASDAQOMX.com NDAQF