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iShares MBS ETF MBB

Set alert

Price alert · MBB

All alert types
92.04 USD +0.36 +0.39%

At close

91.62 -0.42 -0.46%

Pre-market · Nov 2, 4:01 AM ET

Bid
92.05 × 12
Ask
92.07 × 12
91.80 Day range 92.10
88.58 52-week range 96.97
YTD
-3.34%
1 year
-3.67%
Open
91.96
Prev close
91.68
Mkt cap
35.92B
Vol
2.96M
Avg vol
5.11M
EPS
0.00
P/E
0.00
Div yield
0.00%
More statistics
Low
91.80
High
92.10
Forward P/E
0.00
Beta
0.00
Short ratio
0.00
Inst. own
0.00%
Dividend
0.00
Ex-div date
50-d avg
91.22
200-d avg
93.79
1y target
0.00

MAX chart

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Interval
1m5m15m30m

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iShares MBS ETF

Issuer
IShares
Asset class
Fixed Income
Expense ratio
0.04%
Assets under management
$35.89B
NAV
91.96
Holdings
10,833
Inception
2007-03-13
Top 10 weight
11.17%

Top holdings

  1. BLACKROCK CASH CL INST SL AGENCY 5.35%
  2. FHLMC 30YR UMBS SUPER 2.00% 05/01/2051 1.05%
  3. UMBS 30YR TBA(REG A) 5.50% 11/12/2026 0.86%
  4. GNMA2 30YR TBA 6.00% 11/19/2026 0.70%
  5. GNMA2 30YR 5.00% 11/20/2054 0.59%
  6. GNMA2 30YR 2.00% 10/20/2051 0.54%
  7. GNMA2 30YR 2.00% 12/20/2051 0.53%
  8. FNMA 30YR UMBS 2.00% 12/01/2051 0.53%
  9. GNMA2 30YR 2.50% 07/20/2051 0.52%
  10. FHLMC 30YR UMBS SUPER 2.00% 04/01/2051 0.51%
  11. GNMA2 30YR TBA(REG C) 5.50% 11/19/2026 0.49%
  12. FNMA 30YR UMBS 2.00% 11/01/2051 0.45%
  13. GNMA2 30YR 5.00% 04/20/2056 0.43%
  14. GNMA2 30YR 5.50% 09/20/2053 0.40%
  15. GNMA2 30YR 5.50% 09/20/2055 0.40%
  16. UMBS 30YR TBA(REG A) 5.00% 11/12/2026 0.37%
  17. GNMA2 30YR 2.50% 05/20/2051 0.35%
  18. GNMA2 30YR TBA(REG C) 4.50% 11/19/2026 0.33%
  19. FNMA 30YR UMBS SUPER 2.00% 04/01/2052 0.33%
  20. GNMA2 30YR 2.00% 01/20/2052 0.33%
  21. GNMA2 30YR 5.00% 05/20/2056 0.32%
  22. UMBS 15YR TBA(REG B) 4.00% 11/17/2026 0.32%
  23. FNMA 30YR UMBS 2.00% 10/01/2051 0.32%
  24. GNMA2 30YR TBA(REG C) 5.00% 11/19/2026 0.30%
  25. GNMA2 30YR 2.50% 08/20/2051 0.30%

Sector weights

  • Federal National Mortgage Association 42.64%
  • Federal Home Loan Mortgage Corporation 30.24%
  • Government National Mortgage Association 24.01%
  • Uniform MBS 2.67%
  • Cash and/or Derivatives 0.44%

Country weights

  • United States 94.69%
  • Other 5.32%

Updated 2026-11-01

Held by funds

19 US ETFs and mutual funds hold MBB · largest positions

Funds holding MBB, by value held
FundValue heldWeight in fund
APCB $119.52M11.95%
FTRB $95.54M13.07%
BDBT $73.97M14.96%
BAMPX $46.40M5.94%
BACPX $44.00M9.93%
WTBN $26.90M25.62%
MAMB $25.11M12.58%
BNDC $23.10M10.47%
DUKZ $8.99M15.05%
FLTN $4.81M27.80%
AGGP $2.45M9.27%
FOPC $2.21M6.98%
ADFI $1.98M14.77%
LCR $825.80K1.26%
XAGG $347.71K0.02%
MEM $263.93K0.50%
MEMS $205.65K1.00%
KDRN $170.80K16.71%
QMN $110.66K1.78%
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