Semi-Annual Changes to the NASDAQ OMX Clean Edge Global Wind Energy Index

NEW YORK, March 23, 2009 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ) and Clean Edge, Inc. announced the results of the semi-annual evaluation of the NASDAQ OMX(r) Clean Edge(r) Global Wind Energy Index (Nasdaq:QWND), which will become effective with the market open today.

Mitsui & Co., Ltd. (Nasdaq:MITSY) will be added to the Index.

The Index, a benchmark for the global wind energy sector, is a modified market-capitalization index designed to act as a transparent and liquid benchmark for the global wind energy sector. The Index includes companies that are primarily manufacturers, developers, distributors, installers, and users of energy derived from wind sources. The securities must also meet other eligibility criteria which include minimum requirements for market capitalization and average daily dollar trading volume. The Index is evaluated on a semi-annual basis in March and September. For more information about the NASDAQ OMX Clean Edge Global Wind Energy Index, including detailed eligibility criteria, visit https://indexes.nasdaqomx.com/.

The NASDAQ OMX Clean Edge Global Wind Energy Index is the basis for the PowerShares Global Wind Energy Portfolio (Nasdaq:PWND), which seeks investment results that correspond generally to the price and yield of the NASDAQ OMX Clean Edge Global Wind Energy Index before fees and expenses.

As a result of the evaluation, the following three securities will be removed from the Index: Plambeck Neue Energien AG (PNE3 GY), Renewable Energy Generation Ltd. (RWE LN), and THEOLIA (TEO FP).

About NASDAQ OMX Global Index Group

NASDAQ OMX Global Index Group is engaged in the design, development, calculation, licensing, and marketing of NASDAQ OMX Indexes. NASDAQ OMX Global Index Group specializes in the development of indexes focusing on NASDAQ OMX's brand themes of innovation, technology, growth, and globalization. NASDAQ OMX Global Index Group also provides custom index services and design solutions as a third-party provider to selected financial organizations. For more information about NASDAQ OMX indexes, visit https://indexes.nasdaqomx.com/.

About NASDAQ OMX

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 over 3,800 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 http://www.nasdaqomx.com.

About Clean Edge

Clean Edge, Inc., with offices in the San Francisco Bay Area and Portland, Ore., is a leading research and publishing firm that helps companies, investors, and policymakers understand and profit from clean technologies. Founded in 2000, Clean Edge and its network of partners and affiliates offer unparalleled intelligence and insight into the clean-tech sector. Among its many activities, the company publishes the annual "Clean Energy Trends" report, produces the annual Clean-Tech Investor Summit (along with IBF), and maintains a number of clean-energy stock indexes. To keep abreast of the latest clean-tech news, access industry reports, learn more about the company's annual summit and stock indexes, or sign up for Clean Edge's free e-newsletter, visit http://www.cleanedge.com.

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CONTACT:  The NASDAQ OMX Group, Inc.
          NASDAQ Media Contact:
          Wayne Lee
            +1.301.978.4875
            Wayne.D.Lee@NASDAQOMX.Com
          NASDAQ Issuer and Investor Contact:
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            +1.301.978.8281
            Lisa.Chaney@NASDAQOMX.Com

          Clean Edge
          Ron Pernick
          +1.503.493.8681
          pernick@cleanedge.com