The PowerShares WilderHill Clean Energy Portfolio (Fund) seeks to replicate, before fees and expenses, the WilderHill Clean Energy Index, which is designed to deliver capital appreciation through the selection of companies that focus on greener and generally renewable sources of energy and technologies that facilitate cleaner energy.
* Trading Characteristics Definitions Spread : The average dollar difference between the best bid and best offer across all exchanges for the specified time period, weighted by volume. *Spread : Is the monthly average of the daily spread. % Spread : The average spread amount divided by the average bid-ask midpoint, weighted by volume. Share Volume : Composite Volume - total number of shares traded on all exchanges and Nasdaq. Dollar Volume : Dollar amount of shares traded on each exchange for the specified symbol, based on the stocks average price for the time period specified.