ETF:MBB | ETF Holdings | iShares MBS ETF

Companies included in MBB

This is MBB's own dated portfolio constitution. Share counts are the calculation basis for constituent revenue and earnings analytics; rounded weights are reference values only. This page shows positions 1–100 of 11,153.

TickerIssuerShares ownedUnitReported weight
BLACKROCK CASH FUNDSBLACKROCK CASH FUNDS2,348,574,595.03NS5.900546%
Freddie MacFreddie Mac511,173,405.7PA1.073738%
Government National Mortgage AssociationGovernment National Mortgage Association394,483,000PA1.003243%
UMBS, TBAUMBS, TBA226,772,000PA0.57201%
Government National Mortgage AssociationGovernment National Mortgage Association261,137,813.66PA0.555679%
Government National Mortgage AssociationGovernment National Mortgage Association256,664,507.34PA0.54616%
Fannie MaeFannie Mae255,146,803.61PA0.533553%
Government National Mortgage AssociationGovernment National Mortgage Association209,187,000PA0.52708%
Freddie MacFreddie Mac244,776,593.2PA0.513586%
UMBS, TBAUMBS, TBA194,629,000PA0.496576%
Government National Mortgage AssociationGovernment National Mortgage Association210,649,455.07PA0.466916%
Government National Mortgage AssociationGovernment National Mortgage Association177,486,000PA0.454632%
Fannie MaeFannie Mae216,504,307.95PA0.452935%
Fannie MaeFannie Mae212,806,353.95PA0.447818%
Government National Mortgage AssociationGovernment National Mortgage Association167,611,847.86PA0.423011%
Government National Mortgage AssociationGovernment National Mortgage Association175,178,524.9PA0.37275%
Government National Mortgage AssociationGovernment National Mortgage Association163,884,477.5PA0.363259%
UMBS, TBAUMBS, TBA150,295,791PA0.351616%
Freddie MacFreddie Mac167,480,732.2PA0.350375%
Fannie MaeFannie Mae159,356,147.79PA0.334498%
Fannie MaeFannie Mae159,358,647PA0.334224%
Government National Mortgage AssociationGovernment National Mortgage Association128,069,837.5PA0.328253%
Fannie MaeFannie Mae152,966,535.93PA0.320415%
Government National Mortgage AssociationGovernment National Mortgage Association148,373,642.63PA0.315726%
Government National Mortgage AssociationGovernment National Mortgage Association139,978,131.97PA0.310269%
Fannie MaeFannie Mae144,287,885.14PA0.302742%
Fannie MaeFannie Mae138,247,369.95PA0.290336%
Government National Mortgage AssociationGovernment National Mortgage Association130,866,462.94PA0.290076%
Government National Mortgage AssociationGovernment National Mortgage Association134,569,387.1PA0.286412%
Government National Mortgage AssociationGovernment National Mortgage Association127,322,761.27PA0.282218%
Government National Mortgage AssociationGovernment National Mortgage Association107,349,976.73PA0.273906%
Freddie MacFreddie Mac101,057,674.05PA0.25843%
UMBS, TBAUMBS, TBA98,775,000PA0.254409%
Government National Mortgage AssociationGovernment National Mortgage Association98,627,489.09PA0.252892%
Freddie MacFreddie Mac116,417,592.7PA0.243448%
Fannie MaeFannie Mae101,344,892.24PA0.233733%
Government National Mortgage AssociationGovernment National Mortgage Association89,335,472.54PA0.233585%
Government National Mortgage AssociationGovernment National Mortgage Association105,087,173.89PA0.232934%
Government National Mortgage AssociationGovernment National Mortgage Association103,620,926.62PA0.229682%
Freddie MacFreddie Mac108,497,448.23PA0.227743%
Freddie MacFreddie Mac88,727,119.81PA0.226811%
Fannie MaeFannie Mae105,259,671.15PA0.220115%
Fannie MaeFannie Mae84,644,495.6PA0.21875%
Freddie MacFreddie Mac99,444,363.71PA0.218698%
Fannie MaeFannie Mae94,457,156.7PA0.215071%
Government National Mortgage AssociationGovernment National Mortgage Association82,818,664.21PA0.212941%
Fannie MaeFannie Mae80,606,374.4PA0.206376%
Government National Mortgage AssociationGovernment National Mortgage Association80,229,360.27PA0.202417%
Freddie MacFreddie Mac78,678,813.55PA0.200389%
Freddie MacFreddie Mac89,333,741.16PA0.195341%
Fannie MaeFannie Mae92,114,475.48PA0.192465%
Government National Mortgage AssociationGovernment National Mortgage Association90,193,461.76PA0.191916%
Government National Mortgage AssociationGovernment National Mortgage Association84,594,638.57PA0.187511%
Freddie MacFreddie Mac86,582,446.61PA0.181834%
UMBS, TBAUMBS, TBA68,650,000PA0.179045%
Fannie MaeFannie Mae81,573,670.53PA0.178557%
Freddie MacFreddie Mac68,892,067.13PA0.176702%
Fannie MaeFannie Mae80,183,017.5PA0.176325%
Freddie MacFreddie Mac68,687,832.41PA0.17597%
Fannie MaeFannie Mae79,658,210.37PA0.174421%
Government National Mortgage AssociationGovernment National Mortgage Association68,920,334.65PA0.17389%
Fannie MaeFannie Mae79,050,220.27PA0.173034%
Fannie MaeFannie Mae86,371,116.22PA0.172228%
Fannie MaeFannie Mae73,179,906.55PA0.168017%
Freddie MacFreddie Mac64,041,491.22PA0.164003%
Fannie MaeFannie Mae63,752,679.18PA0.161157%
Government National Mortgage AssociationGovernment National Mortgage Association75,668,461.6PA0.161009%
Government National Mortgage AssociationGovernment National Mortgage Association63,491,039.65PA0.160757%
Freddie MacFreddie Mac60,537,411.95PA0.160153%
Freddie MacFreddie Mac75,686,808.84PA0.158605%
Freddie MacFreddie Mac59,865,332.84PA0.156766%
Fannie MaeFannie Mae68,089,203.51PA0.156096%
Fannie MaeFannie Mae73,823,135.24PA0.1547%
Government National Mortgage AssociationGovernment National Mortgage Association69,120,435.51PA0.153209%
Fannie MaeFannie Mae73,024,514.25PA0.15277%
Fannie MaeFannie Mae58,758,753PA0.152645%
Fannie MaeFannie Mae72,257,804.55PA0.152402%
Government National Mortgage AssociationGovernment National Mortgage Association59,665,929.6PA0.152225%
Fannie MaeFannie Mae58,183,808.1PA0.152115%
Government National Mortgage AssociationGovernment National Mortgage Association68,482,951.58PA0.151921%
Government National Mortgage AssociationGovernment National Mortgage Association60,298,876.08PA0.149882%
Government National Mortgage AssociationGovernment National Mortgage Association59,031,505.16PA0.149646%
Fannie MaeFannie Mae57,924,912.88PA0.149099%
Freddie MacFreddie Mac66,701,279.13PA0.146626%
Fannie MaeFannie Mae55,992,518.25PA0.146442%
Fannie MaeFannie Mae57,146,925.62PA0.144246%
Fannie MaeFannie Mae55,493,154.75PA0.144007%
Government National Mortgage AssociationGovernment National Mortgage Association67,508,469.23PA0.143652%
Government National Mortgage AssociationGovernment National Mortgage Association54,887,460.37PA0.143313%
Fannie MaeFannie Mae56,345,451.4PA0.142369%
Freddie MacFreddie Mac71,076,830.99PA0.142011%
Freddie MacFreddie Mac58,550,969.05PA0.140395%
Fannie MaeFannie Mae63,702,537.53PA0.140069%
Fannie MaeFannie Mae65,735,075.02PA0.138644%
Fannie MaeFannie Mae62,769,460.74PA0.137446%
Government National Mortgage AssociationGovernment National Mortgage Association58,613,414.7PA0.136789%
Freddie MacFreddie Mac55,572,513.11PA0.135778%
Government National Mortgage AssociationGovernment National Mortgage Association53,495,502.85PA0.135178%
Fannie MaeFannie Mae61,021,209.48PA0.135098%
Freddie MacFreddie Mac52,411,974PA0.134966%

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