Record high exchange activity • Revenues during January - March increased to SEK 1,062 m (903) • Operating income rose to SEK 348 m (334) • Income after financial items rose to SEK 329 m (319) • Income after tax rose to SEK 257 m (244) • Earnings per share rose to SEK 2.12 m (2.05) • Return on shareholders' equity rose to 20 percent (14) • Record high equity trading • Launch of Genium - next generation of systems for the exchange industry • Widespread interest in information services ”Operating income of SEK 348 m is the highest quarterly earnings in the company's history, excluding the capital gains received during prior periods. There is a high level of activitiy in all of our operations. The earnings increase is primarily attributable to the record high levels of trading activities on the OMX Nordic Exchange - the number of equity transactions rose by a total of 50 percent compared with the year-earlier period and by 27 percent compared with the preceding quarter.” says Magnus Böcker, President and CEO of OMX. OMX's interim report for the period January-March 2007 is presented on the following pages. The report is also available at www.omxgroup.com. A press and analyst briefing will be held today at 11:00 a.m. CET at OMX's premises at Tullvaktsvägen 15, Stockholm. For anyone unable to attend, it is possible to participate via teleconference on the following numbers, Sweden: +46 (0) 850 520 270, UK: +44 (0) 208 817 9301, USA: +1 718 354 1226. The report will be presented by OMX's President and CEO Magnus Böcker and CFO Kristina Schauman. For further information, please contact: Jakob Håkanson, Vice President, Investor Relations +46 (0)8- 405 60 42 Niclas Lilja, Vice President, Communications +46 (0)8- 405 63 95 About OMX | OMX is a leading expert in the exchange industry. Through the Nordic Exchange, OMX offers access to approximately 80 percent of the Nordic and Baltic securities market. The Nordic Exchange is a term used for marketing purposes and is not a legal entity. It describes the common offering from the Helsinki Stock Exchange, Copenhagen Stock Exchange, Stockholm Stock Exchange, Iceland Stock Exchange, Tallinn Stock Exchange, Riga Stock Exchange and Vilnius Stock Exchange. OMX integrated technology solutions cross the transaction chain enabling efficient securities transactions for over 60 exchange organizations in more than 50 countries. OMX is a Nordic Large Cap company in the Financial sector on the OMX Nordic Exchange. For more information, please visit www.omxgroup.com.