SPDR Portfolio Mortgage Backed Bond ETF (SPMB) Quote

to provide investmentresults that before fees and expenses correspond generally to the price and yield performance of an indexthat tracks the U.S. agency mortgage passthrough sector of the U.S. investment grade bond market In seeking to track the performance of the Bloomberg U.S. MBS Index (the Inde... to provide investmentresults that before fees and expenses correspond generally to the price and yield performance of an indexthat tracks the U.S. agency mortgage passthrough sector of the U.S. investment grade bond market In seeking to track the performance of the Bloomberg U.S. MBS 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. Instead, the Fund may purchase a subset of the securities in the Index in an effort to hold a portfolio of securities with generally the same risk and return characteristics of the Index. The quantity of holdings in the Fund will be based on a number of factors, including asset size of the Fund. Show more