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iShares MBS ETF

Open-end / ETF
Registrant
iShares Trust
Class ticker
MBB
Net Assets
$39,634,150,530
Holdings
11,211
Latest Report
Aug 31, 2026

Net Assets Over Time

Holdings · 11,211

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Showing 1–50 of 11,211 holdings by value · page 1 of 225
Holding Balance Value % of Fund Open
BLACKROCK CASH FUNDS
3,010,701,122 $3,011,604,333 7.60%
Government National Mortgage Association
419,233,000 $416,251,968 1.05%
Freddie Mac
491,168,299 $387,300,035 0.98%
UMBS, TBA
341,502,000 $337,988,901 0.85%
UMBS, TBA
288,597,000 $278,366,678 0.70%
Government National Mortgage Association
216,532,000 $209,636,807 0.53%
Government National Mortgage Association
208,873,663 $203,438,755 0.51%
Government National Mortgage Association
249,446,299 $200,163,386 0.51%
Government National Mortgage Association
245,205,982 $196,760,825 0.50%
Government National Mortgage Association
191,254,000 $193,905,626 0.49%
Fannie Mae
246,002,582 $193,379,550 0.49%
Government National Mortgage Association
228,368,291 $191,059,177 0.48%
Freddie Mac
235,732,157 $185,963,637 0.47%
Government National Mortgage Association
196,557,000 $183,967,194 0.46%
Fannie Mae
208,636,890 $164,079,592 0.41%
Fannie Mae
203,802,253 $161,266,414 0.41%
Government National Mortgage Association
163,483,588 $158,453,573 0.40%
UMBS, TBA
161,350,000 $154,307,836 0.39%
Government National Mortgage Association
149,474,854 $149,716,092 0.38%
Government National Mortgage Association
167,148,011 $134,118,586 0.34%
Government National Mortgage Association
156,157,994 $130,646,061 0.33%
UMBS, TBA
125,778,000 $127,144,913 0.32%
Fannie Mae
153,798,542 $121,274,481 0.31%
Fannie Mae
153,378,531 $121,148,625 0.31%
Government National Mortgage Association
150,190,805 $120,517,724 0.30%
UMBS, TBA
130,345,791 $117,696,873 0.30%
Government National Mortgage Association
120,474,160 $116,683,993 0.29%
Fannie Mae
147,305,599 $116,031,000 0.29%
Government National Mortgage Association
133,387,598 $111,595,723 0.28%
Fannie Mae
139,021,132 $109,670,550 0.28%
Fannie Mae
132,252,660 $104,460,311 0.26%
Government National Mortgage Association
124,230,646 $103,962,948 0.26%
Government National Mortgage Association
128,505,190 $103,270,143 0.26%
Government National Mortgage Association
121,416,302 $101,580,208 0.26%
Government National Mortgage Association
100,000,000 $99,351,395 0.25%
Government National Mortgage Association
94,801,914 $97,971,006 0.25%
Freddie Mac
93,157,763 $89,914,588 0.23%
Freddie Mac
89,988,271 $89,667,064 0.23%
Freddie Mac
112,071,861 $88,098,287 0.22%
Government National Mortgage Association
89,690,220 $87,207,944 0.22%
Freddie Mac
93,294,207 $86,155,609 0.22%
Fannie Mae
96,540,274 $83,727,134 0.21%
Government National Mortgage Association
99,543,069 $83,303,043 0.21%
Freddie Mac
104,576,011 $82,534,054 0.21%
Government National Mortgage Association
98,601,395 $82,492,632 0.21%
Freddie Mac
80,464,479 $80,189,584 0.20%
Freddie Mac
96,548,094 $79,865,500 0.20%
Fannie Mae
101,502,638 $79,789,953 0.20%
Fannie Mae
90,224,650 $76,982,824 0.19%
Fannie Mae
74,788,551 $75,967,000 0.19%

Showing the top 50 of 11,211 holdings. Create a free account to see every holding and download the CSV.