Correction to press release: Changes in Most Traded and ATTRACT40 at Stockholmsbörsen

Correction to press release: Changes in Most Traded and ATTRACT40 at Stockholmsbörsen During the period July 1 to December 31, 2004, the Most Traded segment will comprise 32 companies and not 33 as previously communicated. ABB Ltd OM HEX AB (ny) ASSA ABLOY AB Sandvik AB AstraZeneca PLC SCANIA AB (ny) Atlas Copco AB Securitas AB Autoliv Inc. Skandia, Försäkringsab. Electrolux, AB Skandinaviska Enskilda Banken AB Ericsson, Telefonab. L M Skanska AB FöreningsSparbanken AB SKF, AB Gambro AB SSAB Svenskt Stål AB Getinge AB Stora Enso Oyj Holmen AB Swedish Match AB Industrivärden, AB (ny) Svenska Cellulosa AB SCA Investor AB Svenska Handelsbanken AB Kinnevik, Industriförvaltnings AB (ny) TeliaSonera AB Nokia Abp Trelleborg AB Nordea Bank AB Volvo, AB For further information Frank Teneberg, Issuer Sales, Stockholmsbörsen +46 8 405 6954 Annika Molander, Communications Manager, Stockholmsbörsen +46 8 405 6610 OMHEX is a leading provider of marketplace services and transaction technology to financial and energy markets. Through its exchange operations within Stockholmsbörsen, HEX Helsinki, HEX Tallinn and HEX Riga, OMHEX operates northern Europe's largest securities market and offers investors access to 80% of the Nordic and Baltic equity markets. The central securities depositories in Finland, Estonia and Latvia are also part of OMHEX. ------------------------------------------------------------ This information was brought to you by Waymaker http://www.waymaker.net The following files are available for download: http://www.waymaker.net/bitonline/2004/06/17/20040617BIT00240/wkr0001.pdf Appendix http://www.waymaker.net/bitonline/2004/06/17/20040617BIT00240/wkr0002.pdf