The State Street SPDR Portfolio Corporate Bond ETF seeks to provide investment results that, before fees and expenses, correspond generally to the price and yield performance of the Bloomberg U.S. Corporate Bond Index (the "Index")One 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 classesA low cost ETF that seeks to offer precise, comprehensive exposure to US bonds which makes up the corporate slice of the Bloomberg Aggregate Bond IndexThe securities in the Index must have a $300M minimum par amount outstanding and at least 1 year until final maturityRebalanced on the last business day of the month