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Clean Edge Stock Indices: Mixed Performance

NEW YORK ( Clean Edge) -- Clean Edge and Nasdaq's three benchmark clean-tech stock indices experienced mixed movement last week, as the Nasdaq Clean Edge Green Energy Index (CELS) was down 3.96%, the Nasdaq OMX Clean Edge Global Wind Energy Index (QWND) slightly higher by 0.35%, and the Nasdaq OMX Clean Edge Smart Grid Infrastructure Index (QGRD) up 0.64% from the previous week.

The overall market moved marginally lower for the week -- the S&P 500 lost 0.76% and Nasdaq was down 2.39% -- while AMEX Oil was 0.40% lower from the previous week.

CELS -- down 3.96% for the week and 9.53% higher than a year ago - tracks U.S.-listed clean-energy companies and is divided into four categories: advanced materials; energy intelligence; energy storage and conversion; and renewable electricity generation and renewable fuels. Of the 51 total component securities, 12 experienced gains, 38 lost ground, and one remained unchanged.

CELS' best performer for the week was lithium-ion battery system developer Ener1 (HEV), gaining 14.67%. Rounding out the top five CELS performers were Chinese solar manufacturer Trina Solar (TSL - Get Report), up 8.70%; Chinese solar product manufacturer LDK Solar (LDK), higher by 8.68%; solar manufacturing equipment provider GT SOlar International (SOLR), up 8.65%; and Chinese solar technology developer Yingli Green Energy (YGE - Get Report), 7.80% higher for the week.

CELS' worst performer last week was LED lighting manufacturer Cree (CREE), declining 19.62%. Other worst performers included wind energy product and service provider Broadwind Energy (BWEN) , losing 13.33%; energy storage technology developer A123 Systems (AONE), down 12.67%; biomaterial developer Metabolix (MBLX), retreating 12.65%; and organic LED technology developer Universal Display (PANL), 12.34% lower for the week.

QWND -- 0.35% higher last week and 30.31% lower in the last 12 months - includes companies that are primarily manufacturers, developers, distributors, installers, and users of energy derived from wind sources. Of QWND's 18 pure play components, seven saw gains, 10 experienced losses, and one ended the week unchanged.

QWND's best pure play performer for the week was wind turbine manufacturer Vestas Wind Systems (VWS), up 3.98%. Other top pure play performers included wind turbine maker Nordex (NDX1) , gaining 2.68%; renewable energy project developer Iberdrola Renovables (IBR), rising 2.27%; renewable energy developer EDF Energies Nouvelles (EEN) (EEN), up 2.04%; and renewable energy project developer EDP Renovaveis (EDPR), higher by 1.81% for the week.

QWND's worst pure play performers were carbon fiber material developer Zoltek Companies (ZOLT), losing 8.77%; wind turbine equipment manufacturer China High Speed Transmission Equipment Group (0658), down 7.46%; wind energy project developer China Windpower Group (0182), losing 6.33%; wind energy project owner Japan Wind Development Co. (2766), declining 6.24%; and project developer China Longyuan Power Group (0916), falling 5.33% from the previous week.

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