SPDR Barclays Convertible Securities ETF, formerly SPDR Barclays Capital Convertible Securities ETF, seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of an index that tracks United States convertible securities. In seeking to track the performance of the Barclays Capital U.S. Convertible Bond >$500MM Index (the Index), the Fund employs a sampling strategy, which means that the Fund is not required to purchase all of the securities represented in the Index. The Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities. The Fund generally invests substantially all, but at least 80%, of its total assets in the securities comprising the Index. In addition, the Fund may invest in securities that are not included in the Index, futures, options, swap contracts and other derivatives. The Fund's investment advisor is SSgA Funds Management, Inc.