The NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) Semi-Annual Changes To The NASDAQ OMX Clean Edge Global Wind Energy Index

The NASDAQ OMX Group, Inc. (NASDAQ:NDAQ) NEW YORK, Sept. 22, 2008 (GLOBE NEWSWIRE) -- The NASDAQ OMX Group, Inc. (Nasdaq:NDAQ) announced today 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 on today, Monday, September 22, 2008.

The following three securities will be added to the Index: EDP Renovaveis SA, Endesa, S.A., and International Power PLC.

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 www.NASDAQ.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.

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, and with over 3,900 companies, it is number one in worldwide listings among major markets. NASDAQ OMX offers multiple capital raising solutions to companies around the globe, including its U.S. listings market; the OMX Nordic Exchange, including First North; and the 144A PORTAL Market. The company offers trading across multiple asset classes including equities, derivatives, debt, commodities, structured products and ETFs. NASDAQ OMX technology supports the operations of over 70 exchanges, clearing organizations and central securities depositories in more than 50 countries. OMX Nordic Exchange is not a legal entity but describes the common offering from Nasdaq OMX exchanges in Helsinki, Copenhagen, Stockholm, Iceland, Tallinn, Riga, and Vilnius. For more information about NASDAQ OMX, visit 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.

NDAQG

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

Clean Edge Ron Pernick +1.503.493.8681 pernick@cleanedge.com

The NASDAQ OMX Group, Inc.

http://ir.nasdaq.com/

ISIN: US6311031081

Stock Identifier: NYS.NDAQ