QWND's worst pure play performers were wind turbine developer
, declining 15.65 percent; Denmark-based wind energy producer
Greentech Energy Systems
, down 9.05; wind farm developer
China Longyuan Power Group
, losing 3.48 percent; German wind turbine maker
, declining 2.49 percent; and wind energy product and service provider
, lower by 2.37 percent.
QGRD - up 0.84 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, 12 of the 21 pure play QGRD components saw gains while the remaining nine lost ground.
QGRD's best pure play performer was electricity distribution and automation developer
, gaining 13.50 percent. Rounding out the top five pure play performers were electrical equipment manufacturer
, up 10.93 percent;
, rising 5.06 percent; utility service provider
, 2.58 percent higher; and renewable energy project integrator
, growing 1.69 percent.
QGRD's worst performers included network infrastructure provider
, losing 5.73 percent; communication equipment maker
, down 4.62 percent; solar inverter maker
SMA Solar Technology
, retreating 3.89 percent; distribution transformer manufacturer
, down 3.60 percent; and utility smart grid infrastructure provider
, lower by 1.03 percent.