BLDRS is a family of exchange-traded funds ("ETFs") for which PowerShares Capital Management LLC. serves as Sponsor and The Bank of New York Mellon serves as Trustee. ALPS Distributors, Inc. is the distributor for the BLDRs funds. BLDRS are registered as unit investment trusts (UITs) and are based on The Bank of New York Mellon ADR Index^SM, a real-time index tracking U.S. traded depositary receipts.