iShares MBS ETF (MBB)
NASDAQ: MBB · Real-Time Price · USD
89.22
-0.14 (-0.16%)
At close: Oct 7, 2026, 4:00 PM EDT
88.83
-0.39 (-0.44%)
After-hours: Oct 7, 2026, 6:04 PM EDT

MBB Holdings List

No.SymbolName WeightShares
1n/aBLACKROCK CASH CL INST SL AGENCY4.30%1,523,551,620
2n/aFHLMC 30YR UMBS SUPER - 2.0 2051-05-011.03%485,289,891
3n/aGNMA2 30YR TBA(REG C) - 6.0 2026-10-200.68%243,904,000
4n/aUMBS 30YR TBA(REG A) - 5.5 2026-11-120.59%220,677,000
5n/aGNMA2 30YR - 5.0 2054-11-200.58%220,129,669
6n/aGNMA2 30YR TBA(REG C) - 5.5 2026-10-200.57%211,208,000
7n/aGNMA2 30YR - 2.0 2051-10-200.53%245,847,969
8n/aGNMA2 30YR - 2.0 2051-12-200.52%241,489,187
9n/aFNMA 30YR UMBS - 2.0 2051-12-010.52%242,961,983
10n/aGNMA2 30YR - 2.5 2051-07-200.51%224,768,210
11n/aFHLMC 30YR UMBS SUPER - 2.0 2051-04-010.50%232,937,826
12n/aFNMA 30YR UMBS - 2.0 2051-11-010.44%206,194,074
13n/aGNMA2 30YR - 5.0 2056-04-200.43%162,507,049
14n/aGNMA2 30YR TBA(REG C) - 5.0 2026-10-200.41%156,382,000
15n/aGNMA2 30YR - 5.5 2053-09-200.40%146,107,760
16n/aGNMA2 30YR - 5.5 2055-09-200.39%144,696,745
17n/aGNMA2 30YR - 2.5 2051-05-200.35%153,893,088
18n/aUMBS 30YR TBA(REG A) - 5.0 2026-11-120.35%132,697,000
19n/aFNMA 30YR UMBS SUPER - 2.0 2052-04-010.32%152,001,356
20n/aFNMA 30YR UMBS - 2.0 2051-03-010.32%151,555,156
21n/aGNMA2 30YR - 2.0 2052-01-200.32%148,090,084
22n/aGNMA2 30YR - 5.0 2056-05-200.31%119,866,422
23n/aFNMA 30YR UMBS - 2.0 2051-10-010.31%145,504,826
24n/aGNMA2 30YR - 2.5 2051-08-200.30%131,404,334
25n/aFNMA 30YR UMBS - 2.0 2051-04-010.29%137,362,237
Showing 25 of 10858 holdings
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As of Oct 6, 2026