iShares MBS ETF
$MBB · BlackRock · tracks Bloomberg US Mortgage Backed Securities Index · since 2007
Dividend yield
4.36%
Expense ratio
0.04%
Assets
$38.4B
About MBB
Tracks investment-grade U.S. agency mortgage-backed securities issued by Fannie Mae, Freddie Mac, and Ginnie Mae. MBB is the largest MBS-focused ETF and a core building block of the U.S. Aggregate Bond Index.
Sector exposure
- Agency MBS - Fannie Mae44.6%
- Agency MBS - Freddie Mac32.8%
- Agency MBS - Ginnie Mae22.6%
How StockWorthy analyses MBB
ETFs hold companies rather than generating cash flow themselves, so MBB is assessed on cost, income and the valuation of what it owns: the expense ratio, the current yield against its own 2.54% long-run average, and a holdings-weighted P/E and growth rate built from the underlying positions. Figures are educational and not investment advice.
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