OMX – Interim Report January-March 2005

• Revenue amounted to SEK 742 m (918) • Operating income was SEK 207 m (326) • Adjusted operating income totaled SEK 207 m (223) • Income after net financial items was SEK 190 m (318) • Operating income after tax totaled SEK 132 m (237) • Earnings per share was SEK 1.15 (2.03) • Combination with the Copenhagen Stock Exchange • Full impact of cost synergies from the merger of OM and HEX • Increased order bookings for OMX Technology Enclosed you will find OMX’s Interim Report January-March 2005. The report is also available at www.omxgroup.com. A press and analyst briefing will be held today at 11.00 CET at OMX’s head office at Tullvaktsvägen 15, Stockholm. For those unable to attend, it will be possible to listen in via conference call at the following numbers, UK: +44 (0) 20 7162 0180, US: +1 334 323 6203, Sweden: +46 8 505 201 14. CEO Magnus Böcker will present the report in English together with CFO Kristina Schauman. For further information or comments, please contact: Magnus Böcker, CEO +46 8 405 66 44 Kristina Schauman, CFO +46 8 405 71 35 Jakob Håkanson, VP Investor Relations +46 8 405 60 42 Anna Rasin, VP Marketing & Communications +46 8 405 66 12