PowerShares PureBeta US Aggregate Bond Portfolio 

The fund generally will invest at least 80% of its total assets in the component securities that comprise the underlying index. Strictly in accordance with its guidelines and mandated procedures, ICE Data Indices, LLC compiles, maintains and calculates the index, which is designed to measure the performance of the domestic investment grade bond market, represented by U.S. dollar-denominated, investment grade debt securities that are publicly offered for sale in the United States.