QWND's worst pure play performers were energy delivery technology developer American Superconductor ( AMSC), declining 7.95 percent; Greece-based renewable energy developer Terna Energy ( TENERGY), down 5.73 percent; Spain-based renewable energy developer Gamesa Tecnologica ( GAM), losing 5.10 percent; wind turbine manufacturer Nordex ( NDXI), declining 5.09 percent; and wind energy product and service provider Broadwind Energy ( BWEN), lower by 5.02 percent.

QGRD, down 1.08 percent from the previous week, is composed of companies that are primarily involved in the electric grid; electric meters, devices, and networks; energy storage and management; and enabling software used by the smart grid and electric infrastructure sector. Last week, seven of the 21 pure play QGRD components saw gains while the remaining 14 lost ground.

QGRD's best pure play performer was Power-One), gaining 40.86 percent. Rounding out the top five pure play performers were smart meter manufacturer Itron ( ITRI), up 2.96 percent; renewable energy inverter maker SMA Solar Technology ( S92), , rising 1.69 percent; energy storage developer NGK Insulators ( 53330), 1.31 percent higher; and utility network provider ESCO Technologies ( ESE), up 1.18 percent.

QGRD's worst performers included transformer manufacturer Jinpan International ( JST), losing 19.67 percent; network infrastructure product maker Echelon ( ELON), down 10.84 percent; American Superconductor, retreating 7.95 percent; demand management firm EnerNOC ( ENOC), down 4.44 percent; and energy management service provder Comverge ( COMV), lower by 4.38 percent.

This information is not intended to be used as a guide to investing, and the authors make no guarantees that any investments based on the information contained herein will benefit you in specific applications, owing to the risk that is involved in investing of almost any kind.
Clean Edge, Inc., founded in 2000, is the world's first research and publishing firm devoted to the clean-tech sector. The company, via its publications, events, and online services, helps companies, investors, and governments understand and profit from clean technologies. Clean Edge, with offices in the San Francisco Bay Area and Portland Oregon, offers insight and intelligence on emerging clean-tech trends, opportunities, and challenges. The company publishes a range of reports including the annual Clean Energy Trends and Clean Tech Job Trends report series; hosts the annual Clean-Tech Investor Summit (along with IBF); maintains a number of benchmark clean-tech stock indices with NASDAQ OMX including CELS, QGRD, and QWND; and produces Clean Edge Jobs, a leading online jobs board for clean-tech job seekers, employers, and recruiters. To keep abreast of the latest clean-tech news; access industry reports; learn more about our services; or sign up for our free e-newsletters; visit CleanEdge.com.

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