...The top performing ETF this week, the PowerShares WilderHill Clean Energy Fund (PBW), is the one that caught my eye. Like the OIH, the gain wasn't exceptionally large but still noteworthy. In the case of the PBW, it was enough to help the ETF tick to a new annual high. As the name implies, this is a fund tracks stocks that are typically referred to as "alternative energy" stocks.
I pulled the component stocks from the PowerShares site and listed them below. A few names like FuelCell Energy (FCEL) and Energy Conversion Devices (ENER) might be "typical" alternative energy stocks you have heard of. Others, like Applied Materials (AMAT), are better known in other circles. With oil prices remaining a headline mainstay, it might be worthwhile to check into the PBW.
From Schaeffers Investment Research