iShares MBS ETF (MBB) Holdings List

$94.31 +0.16 (+0.17%)

As of 04:00 PM Eastern

What stocks does MBB hold?

The iShares MBS ETF (MBB) top stock holdings include BlackRock Cash Funds Instl SL Agency, Federal Home Loan Mortgage Corp. 2%, and Government National Mortgage Association 5.5%. The top 25 MBB holdings ordered by weight make up 17.78% of the total fund. MBB is a fixed income fund in the u.s. government category that invests in investments, focused on agency mbs strategies within the North America region. This page includes a complete MBB stock holdings list ranked by weight, along with a full breakdown of sector, geographic, industry, and currency exposure.

Top 25 MBB Holdings

Rank	Company	Current Price	Weight	Shares Held
1	BlackRock Cash Funds Instl SL Agency	N/A	5.98%	2,302,328,996
2	Federal Home Loan Mortgage Corp. 2%	N/A	1.07%	505,332,365
3	Government National Mortgage Association 5.5%	N/A	0.84%	320,958,000
4	Federal National Mortgage Association 5%	N/A	0.83%	323,647,000
5	Federal National Mortgage Association 5.5%	N/A	0.66%	251,627,000
6	Government National Mortgage Association 5%	N/A	0.57%	217,455,637
7	Government National Mortgage Association 2%	N/A	0.56%	257,599,821
8	Government National Mortgage Association 2%	N/A	0.55%	253,118,312
9	Federal National Mortgage Association 2%	N/A	0.53%	252,524,954
10	Government National Mortgage Association 5%	N/A	0.53%	203,507,000
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11	Federal Home Loan Mortgage Corp. 2%	N/A	0.51%	242,085,774
12	Government National Mortgage Association 2.5%	N/A	0.47%	207,586,137
13	Federal National Mortgage Association 2%	N/A	0.45%	214,165,040
14	Federal National Mortgage Association 2%	N/A	0.45%	210,369,226
15	Government National Mortgage Association 5.5%	N/A	0.42%	160,062,326
16	Government National Mortgage Association 6%	N/A	0.42%	157,486,000
17	Government National Mortgage Association 2%	N/A	0.37%	172,827,363
18	Government National Mortgage Association 2.5%	N/A	0.36%	161,491,206
19	Federal National Mortgage Association 2%	N/A	0.33%	157,783,272
20	Federal National Mortgage Association 2%	N/A	0.33%	157,628,723
21	Federal National Mortgage Association 2%	N/A	0.32%	151,385,601
22	Government National Mortgage Association 2%	N/A	0.32%	146,439,705
23	Government National Mortgage Association 2.5%	N/A	0.31%	137,899,293
24	Government National Mortgage Association 6.5%	N/A	0.30%	110,969,686
25	Federal National Mortgage Association 2%	N/A	0.30%	142,720,041

MBB Geographic Exposure

MBB's largest geographic exposure is United States at 99.2%.

United States
99.2%

MBB Currency Exposure

MBB is exclusively exposed to USD.

USD
100.0%

MBB Sector Exposure

MBB's largest sector exposure is Financials at 86.9%.

Financials
86.9%

MBB Industry Exposure

MBB's largest industry exposure is Thrifts & Mortgage Finance at 86.8%, followed by Diversified Financial Services at 0.1%.

Thrifts & Mortgage Finance
86.8%
Diversified Financial Services
0.1%

MBB Sub-Industry Exposure

MBB's largest sub-industry exposure is Thrifts & Mortgage Finance at 86.9%.

Thrifts & Mortgage Finance
86.9%

MBB Coupon Exposure

MBB's largest coupon exposure is 2-4 at 62.1%, followed by 4-6 at 31.3%.

2-4
62.1%
4-6
31.3%
6-8
11.4%

MBB Maturity Exposure

MBB's largest maturity exposure is 20-30 at 80.8%, followed by 10-15 at 6.5%.

20-30
80.8%
10-15
6.5%
0-1
5.9%
15-20
3.0%
5-10
2.1%
30+
1.0%
3-5
0.2%

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This page (NASDAQ:MBB) was last updated on 5/5/2026 by MarketBeat.com Staff.

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iShares MBS ETF (MBB) Holdings List