Stockholm, August 26, 2008 - The OMX Nordic Exchange, part of the NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) announces today that trading in PSI Group ASA shares commence on OMX Nordic Exchange Stockholm. The company is this year's tenth listing on the Nordic Exchange's main market. PSI Group is Scandinavia's leading provider of retail technology. It offers world-leading products within cash management, electronic signage & pricing, point-of-sales terminals, recycling and more. PSI Group today has around 210 employees in Norway and Sweden, with a turnover of 461 million NOK in 2007. Earlier this year PSI Group acquired a majority stake in Swedish cash logistics company CashGuard. PSI Group is Norwegian-based and will as of today be listed on both OMX Nordic Exchange Stockholm and on Oslo Exchange. ”We are very happy to welcome PSI Group to the Nordic Exchange” said Jenny Rosberg, Senior Vice President, Listings & Capital Markets. “Through PSI's listing we are able to offer local investors top of the line trading services after the merger of PSI Group and CashGuard. PSI Group is a leading Norwegian IT company and will make a nice addition to our vibrant Information Technology sector.” A round lot of shares in PSI Group ASA, whose short name is PSI SEK, amounts to 200 shares. PSI is a small-cap company in the Information Technology sector. - # - The NASDAQ OMX Group, Inc. is the world's largest exchange company. It delivers trading, exchange technology and public company services across six continents, and with over 3,900 companies, it is number one in worldwide listings among major markets. NASDAQ OMX offers multiple capital raising solutions to companies around the globe, including its U.S. listings market; the OMX Nordic Exchange, including First North; and the 144A PORTAL Market. The company offers trading across multiple asset classes including equities, derivatives, debt, commodities, structured products and ETFs. NASDAQ OMX technology supports the operations of over 60 exchanges, clearing organizations and central securities depositories in more than 50 countries. OMX Nordic Exchange is not a legal entity but describes the common offering from Nasdaq OMX exchanges in Helsinki, Copenhagen, Stockholm, Iceland, Tallinn, Riga, and Vilnius. For more information about NASDAQ OMX, visit www.nasdaqomx.com. About OMX Nordic Exchange | OMX Nordic Exchange serves as a central gateway to the Nordic and Baltic financial markets, offering listing and trading services for among others; issuers, bank and brokers and market data vendors. The Nordic Exchange comprises over 850 companies including its alternative market First North and offers trading in equities, derivatives, fixed income and more. The Nordic Exchange is not a legal entity but describes the common offering from Nasdaq OMX exchanges in Helsinki, Copenhagen, Stockholm, Iceland, Tallinn, Riga, and Vilnius. For more information, please visit www.omxnordicexchange.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. CONTACT: NASDAQ OMX Group, Inc. Jonas Rodny +46 8 405 72 67 jonas.rodny@nasdaqomx.com