MBB ETF

MBB ETF
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MBB holds 10.7% of its assets in its 10 largest positions as of Oct 1, 2026. MBB is iShares MBS ETF.

Showing the top 10 of 22,427 holdings · as of Oct 1, 2026
Top 10 weight
10.67%
MBB top 10 holdings, by weight
#TickerNameWeightCumulativeMkt valueSectorIndustry
1
BISXX
Blackrock Cash Funds: Institutional, Sl Agency SharesFinancials · Capital Markets
5.09%		5.1%$1.81BFinancialsCapital Markets
2—Fhlmc 30Yr Umbs Super 2% Apr 01, 2051Financials · Thrifts
1.04%		6.1%$368.76MFinancialsThrifts
Sector and industry · Pro
3—Ginnie Mae 6
0.68%		6.8%$241.28M
4—Fannie Mae Or Freddie Mac 2050-10-01
0.60%		7.4%$211.43M
5—Gnma Ii 30Yr Pool#Mb0025
0.59%		8.0%$208.08M
6—Government National Mortgage Association
0.57%		8.6%$203.14M
7DebtGovernment National Mortgage A
0.54%		9.1%$190.82M
8—Gnma2 30Yr 2% Dec 20, 2051
0.53%		9.6%$187.54M
9DebtFannie Mae Pool
0.52%		10.2%$184.69M
10DebtGnma Ii P#Ma7472
0.51%		10.7%$181.91M
More holdings · Pro
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Themes in the top 10
Asset ManagementETF ProvidersInvestment TechnologyLending & CreditMarket InfrastructureGlobal BankingInterest RatesDerivatives TradingInflation ProtectionInfrastructureSupply ChainHealth Insurance

MBB ETF Top Holdings

MBB holdings top 10 positions. The top 10 holdings account for 10.7% of the fund, led by Blackrock Cash Funds: Institutional, Sl Agency Shares at 5.1%, Fhlmc 30Yr Umbs Super 2% Apr 01, 2051 at 1.0%, Ginnie Mae 6 at 0.7%.

MBB portfolio concentration is well-diversified, with the top 10 representing 10.7% of total assets. The largest sector exposure is Financials at 86.0%.

MBB sectors provide a detailed breakdown. MBB overlap shows how holdings compare to other funds in your portfolio.

Compare MBB

MBB vs SPYMBB vs QQQMBB vs VOOMBB vs VTIMBB vs IVVMBB vs SCHDMBB vs VYMMBB vs VXUS
Showing 10 of 22,427 holdingsTop 10 Weight: 10.67%
#TickerNameIndustryWeightAllocation
1BISXXBlackrock Cash Funds: Institutional, Sl Agency SharesFinancials5.09%
2FR SD8146Fhlmc 30Yr Umbs Super 2% Apr 01, 2051Financials1.04%
3G2SF 6 10/11Ginnie Mae 6Financials0.68%
4FNCL 5.5 10/11Fannie Mae Or Freddie Mac 2050-10-01Financials0.60%
5G2 MB0025Gnma Ii 30Yr Pool#Mb0025Financials0.59%
6G2SF 5.5 10/11Government National Mortgage AssociationFinancials0.57%
7G2 MA7648Government National Mortgage A 2 10/20/2051Financials0.54%
8G2 MA7766Gnma2 30Yr 2% Dec 20, 2051Financials0.53%
9FN MA4492Fannie Mae Pool 2.0% 12/01/2051Financials0.52%
10G2 MA7472Gnma Ii P#Ma7472 2.5% 07/20/51Financials0.51%
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Holdings Distribution

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