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New OMX Helsinki Benchmark Portfolio Selected


Helsinki, November 10, 2011 - The NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) announces today the results of the semi-annual review of the OMX Helsinki Benchmark index, (NASDAQ OMX Helsinki: OMXHB), which will become effective with the market open on Thursday, December 1, 2011.

There will be three new additions to the index; Ahlstrom Corporation (AHL1V), Ilkka-Yhtymä Oyj 2 (ILK2S) and Lännen Tehtaat Plc (LTE1S).

Atria Plc A (ATRAV) and Digia Plc (DIG1V) will be removed from the index.

The OMXHB index is a free float-capitalization index designed to act as a transparent and liquid benchmark with low transaction costs for the investors. OMXHB includes 54 securities compared with 129 in the All share index, and shows a high correlation of 99,6% with the main market.

OMXHB is sector diversified and major sectors represented are Information Technology, Industrials, Financials and Materials. The securities must also meet other eligibility criteria including a turnover limit. The OMXHB 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.

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NASDAQ OMX Media Contact:

Maarit Bystedt

+358 9 6166 7274

About NASDAQ OMX Index Products

NASDAQ OMX is a global leader in creating and licensing strategy indexes and is home to the most widely watched indexes in the world. As a premier, full-service provider, NASDAQ OMX is dedicated to designing powerful indexes that are in sync with a continually changing market environment. Utilizing the expanded coverage of our global company, NASDAQ OMX has more than 1,500 diverse equity, commodity and fixed-income indexes in the U.S., Europe, and throughout world. In addition, our calculation, licensing and marketing support provide the tools to measure and replicate global markets. The NASDAQ OMX Index Group range of services covers the entire business process from index design to calculation and dissemination. For more information about NASDAQ OMX indexes, visit


The NASDAQ OMX Group, Inc. is the world's largest exchange company. It delivers trading, exchange technology and public company services across six continents, with approximately 3,500 listed companies. NASDAQ OMX offers multiple capital raising solutions to companies around the globe, including its U.S. listings market, NASDAQ OMX Nordic, NASDAQ OMX Baltic, NASDAQ OMX First North, and the U.S. 144A sector. The company offers trading across multiple asset classes including equities, derivatives, debt, commodities, structured products and exchange-traded funds. NASDAQ OMX technology supports the operations of over 70 exchanges, clearing organizations and central securities depositories in more than 50 countries. NASDAQ OMX Nordic and NASDAQ OMX Baltic are not legal entities but describe the common offering from NASDAQ OMX exchanges in Helsinki, Copenhagen, Stockholm, Iceland, Tallinn, Riga, and Vilnius. For more information about NASDAQ OMX, visit

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.

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