Reading the tape
NASDAQ: MBB
iShares MBS ETF
ETF · Fixed Income
AUM
$38.35B
Expense Ratio
0.04%
Holdings
11,106
Top 10 Weight
15.36%
Price history
$94.66
▲ 2.71% ($2.50)
ETF snapshot
NAV$94.88
Premium / discount-0.24%
52w high$96.97
52w low$91.19
Volume1.78M
UpdatedMay 11, 2026
Data freshness · fund info May 11, 2026 · holdings May 11, 2026
What you own
Industry / sectorCash & Others 100%
RegionOther 100%
CountryOther 100%
Concentration
Top holding—
Top 10 holdings15.36%
Holdings coverage99.75%
Fund profile
The iShares MBS ETF (MBB) seeks to track the investment results of an index composed of investment-grade mortgage-backed pass-through securities issued and/or guaranteed by U.S. government agencies.
IssuerIShares
Asset classFixed Income
DomicileUS
InceptionMar 13, 2007
Average volume3.65M
TickerMBB