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NASDAQ OMX: New OMX Stockholm Benchmark Portfolio Selected - The New Portfolio Of The OMX Stockholm Benchmark Index Will Become Effective On June 1, 2010

Date 07/05/2010

The NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) announces today the results of the semi-annual review of the OMX Stockholm Benchmark index, (NASDAQ OMX Stockholm: OMXSB), which will become effective with the market open on Tuesday, June 1, 2010.

Active Biotech AB (ACTI), Arise Windpower (AWP), Biovitrum AB (BVT), Gunnebo AB (GUNN), Höganäs AB ser. B (HOGA B), Klövern AB (KLOV), Lundin Mining Corporation SDB (LUMI SDB) and Proact IT Group AB (PACT) will be added to the index.

AarhusKarlshamn AB (AAK), Hexagon AB ser. B (HEXA B), PA Resources (PAR SEK) and Transcom WorldWide S.A SDB ser. B (TWW SDB) will be removed from the index.

The OMXSB index is a free float adjusted index designed to act as a transparent and liquid benchmark with low transaction costs for the investors while maintaining a high correlation to the Swedish market.

OMXSB is sector diversified and major sectors represented are Financials, Industrials, Consumer Discretionary and Information Technology. The securities must also meet other eligibility criteria including a turnover screening. The OMXSB index is evaluated on a semi-annual basis in May and November, and the new index portfolio becomes effective on the first trading day in June and December respectively.