Semi-Annual Changes to the NASDAQ Clean Edge U.S. Index and the NASDAQ Clean Edge U.S. Liquid Series Index

March 9, 2007
Semi-Annual Changes to the NASDAQ Clean Edge U.S. Index and the NASDAQ® Clean Edge® U.S. Liquid Series Index:

New York — March 9, 2007 — The Nasdaq Stock Market, Inc. (“NASDAQ”) (Nasdaq:NDAQ) announced today the results of the semi-annual evaluation of the NASDAQ(r) Clean Edge(r) U.S. Index (Nasdaq:CLEN) and the NASDAQ® Clean Edge® U.S. Liquid Series Index: (Nasdaq:CELS) (the “Indexes”), which will become effective with the market open on Monday, March 19, 2007.

The following six securities will be added to the Indexes: Canadian Solar Inc. (Nasdaq:CSIQ), First Solar, Inc. (Nasdaq:FSLR), JA Solar Holdings Co., Ltd. (Nasdaq:JASO), Solarfun Power Holdings Co., Ltd. (Nasdaq:SOLF), Trina Solar Limited (NYSE:TSL) and US BioEnergy Corporation (Nasdaq:USBE).

The Indexes are designed to track the performance of clean-energy companies that are publicly traded in the U.S. The Indexes include companies engaged in the manufacturing, development, distribution, and installation of emerging clean-energy technologies such as solar photovoltaics, biofuels and advanced batteries. The five major sub-sectors that the indexes cover are Renewable Electricity Generation, Renewable Fuels, Energy Storage & Conversion, Energy Intelligence and Advanced Energy-Related Materials.

The securities must also meet other eligibility criteria which include minimum requirements for market value, average daily share volume, and price. The Indexes are evaluated on a semi-annual basis in March and September. For more information about the NASDAQ Clean Edge U.S. Index and the NASDAQ® Clean Edge® U.S. Liquid Series Index:, including detailed eligibility criteria, visit www.NASDAQ.com.

The NASDAQ® Clean Edge® U.S. Liquid Series Index: is the basis for the First Trust NASDAQ® Clean Edge® U.S. Liquid Series Index: Fund (Nasdaq:QCLN), which seeks investment results that correspond generally to the price and yield performance of the NASDAQ® Clean Edge® U.S. Liquid Series Index: before fees and expenses.

As a result of the evaluation Active Power, Inc. (Nasdaq:ACPW), C&D Technologies, Inc. (NYSE:CHP), Capstone Turbine Corporation (Nasdaq:CPST), Distributed Energy Systems Corp. (Nasdaq:DESC), Hydrogenics Corporation (Nasdaq:HYGS), Quantum Fuel Systems Technologies Worldwide Inc. (Nasdaq:QTWW) and Vicor Corporation (Nasdaq:VICR) will be removed from the Index.

About NASDAQ

NASDAQ is the largest U.S. electronic stock market. With approximately 3,200 companies, it lists more companies and, on average, its systems trade more shares per day than any other U.S. market. NASDAQ is home to companies that are leaders across all areas of business including technology, retail, communications, financial services, transportation, media and biotechnology. NASDAQ is the primary market for trading NASDAQ-listed stocks. For more information about NASDAQ, visit the NASDAQ Web site at http://www.nasdaq.com or the NASDAQ Newsroom at http://www.nasdaq.com/newsroom/.

About Clean Edge

Clean Edge, Inc., with offices in Oakland, Calif. and Portland, Ore., is a leading research and publishing firm that helps companies, investors, and policymakers understand and profit from clean technologies. Through its research and reports, conferences and events, and strategic consulting services, Clean Edge tracks and analyzes clean-tech markets, trends, and opportunities. The company publishes the annual Clean Energy Trends report, co-produces the annual Clean-Tech Investor Summit, and co-publishes the NASDAQ Clean Edge U.S. index. Launched in 2001 by environmental and high-tech business pioneers Ron Pernick and Joel Makower, Clean Edge and its network of partners and affiliates offer unparalleled insight and intelligence. For more information, visit www.cleanedge.com.

Contact:

The Nasdaq Stock Market, Inc.
Media: Wayne Lee
301.978.4875
Issuer and Investor: Lisa Chaney 301.978.8281