The PowerShares Insured New York Municipal Bond Portfolio (Fund) is based on the BofA Merrill Lynch New York Insured Long-Term Core Plus Municipal Securities Index (Index). The Fund will normally invest at least 80% of its total assets in securities that comprise the Index and generally expects to invest at least 90% of its total assets. The Index is designed to track the performance of AAA-rated, insured, tax-exempt, long-term debt publicly issued by New York or Puerto Rico or their political subdivisions.