The State Street SPDR Portfolio S&P 500 ETF seeks to provide investment results that, before fees and expenses, correspond generally to the total return performance of the S&P 500 Index (the "Index")A low-cost ETF that seeks to offer precise, comprehensive exposure to the US large cap market segmentThe Index represents approximately 80% of the US marketOne of the low-cost core State Street SPDR Portfolio ETFs, a suite of portfolio building blocks designed to provide broad, diversified exposure to core asset classes