SPDR S&P Biotech ETF (the Fund) seeks to closely match the returns and characteristics of the S&P Biotechnology Select Industry Index. The S&P Biotechnology Select Industry Index represents the biotechnology sub-industry portion of the S&P Total Markets Index. The S&P TMI tracks all the United States common stocks listed on the New York Stock Exchange, American Stock Exchange, National Association of Securities Dealers Automated Quotation (NASDAQ) National Market and NASDAQ Small Cap exchanges. The Biotech Index is a modified equal weight index. SSgA Funds Management, Inc. is the Fund's investment advisor.