NASDAQ: MBB
iShares MBS ETF
ETF · Fixed Income
After hours: $95.95(+3.49%) · as of 7:34 PM ET
AUM
$38.93B
Expense Ratio
0.04%
Holdings
11
Top 10 Weight
14.74%
Price history
$92.72
▼ 1.12% ($1.05)
ETF snapshot
NAV$92.91
Premium / discount-0.2%
52w high$96.97
52w low$92.68
Volume3.60M
UpdatedAug 3, 2026
Data freshness · fund info Aug 3, 2026 · holdings Aug 3, 2026
What you own
Industry / sectorCash & Others 100%
RegionOther 100%
CountryOther 100%
Concentration
Top holding—
Top 10 holdings14.74%
Holdings coverage107.48%
Fund profile
The iShares MBS ETF, known by its symbol MBB, is structured to mirror the financial performance of a specific index.
IssuerIShares
Asset classFixed Income
DomicileUS
InceptionMar 13, 2007
Average volume2.18M
TickerMBB