The iShares MBS Bond ETF provides exposure to the mortgage-backed security slice of the bond market. It seeks to track the investment results that correspond to the investment grade agency mortgage-backed securities sector of the U.S. as defined by the Barclays Capital U.S. MBS Fixed-Rate Index. The Fund offers access to the domestic mortgage-backed bond market, which includes securities issued by GNMA, FHLMC, and FNMA that have 30-, 20-, 15-year and balloon securities. MBB’s majority holdings are concentrated in 30-year-fixed-rate mortgages. As of March 2021, the iShares MBS Bond ETF had $26.45 billion in assets.
MBB is a good option for investors looking to invest in fixed-rate mortgage pass-through securities.
It offers exposure to a broad range of U.S. mortgage-backed bonds, including those issued by government sponsored enterprises such as Ginnie Mae, Fannie Mae, and Freddie Mac.
U.S. government agencies: Federal National Mortgage Association (FNMA), the government National Mortgage Association (GNMA), and the Federal Home Loan Mortgage Corporation (FHLMC).
MBB TOP 10 HOLDINGS
BlackRock Cash Funds Instl SL Agency BISXX 18.54
Federal National Mortgage Association 0% 2.18
Federal Home Loan Mortgage Corporation 2% 1.95
Fnma Pass-Thru I 2.5% 1.93
Government National Mortgage Association 2% 1.90
Federal National Mortgage Association 1.5% 1.72
Federal National Mortgage Association 2% 1.51
Federal Home Loan Mortgage Corporation 2% 1.51
Fnma Pass-Thru I 2.5% 1.30
Federal National Mortgage Association 1.5% 1.24
As of 04/06/21