Clean Edge and
's three benchmark clean-tech stock indexes experienced mixed movement last week with the
Nasdaq Clean Edge Green Energy Index
down 2.24 percent, the
Nasdaq OMX Clean Edge Global Wind Energy Index
falling 1.54 percent, and the
Nasdaq OMX Clean Edge Smart Grid Infrastructure Index
0.09 percent higher from the previous week.
The overall market was slightly higher. The
gained 1.54 percent and
grew 3.23 percent, while AMEX Oil saw a 0.64 percent gain from the previous week.
CELS -- down 2.24 percent for the week and 1.65 percent 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, 21 experienced gains, 29 experienced losses, and one remained unchanged for the week.
CELS' best performer for the week was power converter technology developer
(VICR - Get Report)
, gaining 17.07 percent.
Rounding out the top five CELS performers were electronic materials provider
(RBCN - Get Report)
, up 13.76 percent; biomaterial developer
(MBLX - Get Report)
, higher by 7.92 percent; renewable energy project integrator
, up 4.09 percent; and power management device maker
, 3.97 percent higher for the week.
CELS' worst performer last week was wind product and service provider
, declining 13.96 percent. Other worst performers included solar wafer and module manufacturer
, losing 11.39 percent; LED lighting manufacturer
, down 11.24 percent; vertically integrated solar product maker
Yingli Green Energy
, retreating 11.20 percent; and Chinese solar product manufacturer
, 8.83 percent lower.
QWND -- down 1.54 percent last week and 34.52 percent 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, six experienced gains and 12 lost ground.
QWND's best pure play performer for the week was renewable energy developer
Gamesa Corporacion Tecnologica
, up 5.43 percent.
Other top pure play performers included renewable energy project developer
, gaining 3.87 percent; Germany-based wind turbine maker
, rising 2.39 percent; wind power producer
Innergex Renewable Energy
, growing 1.24 percent; and wind turbine manufacturer
, 1.11 percent higher for the week.
QWND's worst pure play performers were wind turbine gearbox maker
Hansen Transmissions International
(HSN), losing 16.36 percent; wind gear transmission equipment developer
China High Speed Transmission Equipment Group
(0658), down 4.86 percent; energy delivery technology developer
, losing 3.81 percent; wind project developer
China WindPower Group
(0182), declining 3.53 percent; and wind farm developer
China Longyuan Power Group
(0916), falling 3.47 percent from the previous week.