Clean Edge Indices Gain
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The overall market also moved higher -- the S&P 500 gained 1.04% and the Nasdaq was up 0.87% -- while AMEX Oil grew 4.38% from the previous week.
CELS -- up 1.76% for the week and 20.22% 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 50 total component securities, 32 experienced gains and 18 lost ground.
CELS' best performer for the week was China-based PV product maker SunTech Power (STP), gaining 20.20%. Rounding out the top five CELS performers were electronic materials provider Rubicon Technology (RBCN), up 17.61%; solar cell and module maker SunPower (SPWRA), higher by 12.47%; power management device maker O2Micro International (OIIM), up 11.92%; and Chinese solar manufacturer LDK Solar (LDK), 11.84% higher for the week.
CELS' worst performer last week was wind energy product and service provider Broadwind Energy (BWEN), declining 14.88%. Other worst performers included smart meter maker Itron (ITRI), losing 8.96%; demand management firm EnerNOC (ENOC), down 8.15%; LED and solar manufacturing equipment provider Veeco Instruments (VECO), retreating 6.38%; and network infrastructure product maker Echelon Corporation (ELON), 5.97% lower for the week.
QWND -- 0.80% higher last week and 22.79% 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 was unchanged for the week.
QWND's best pure-play performer for the week was wind turbine manufacturer Nordex (NDX1), up 6.86%. Other top pure-play performers included wind farm owner and operator China Longyuan Power Group (0916), gaining 6.28%; wind turbine gear transmission provider China High Speed Transmission Equipment Group (0658), rising 6.18%; renewable energy developer EDF Energies Nouvelles (EEN), up 4.77%; and renewable energy project developer Gamesa Corporacion Tecnologica (GAM), up 1.76% for the week.
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