Vanguard Mortgage-Backed Secs Idx Instl (VMBIX)

VMBIX Holdings Information

VMBIX is a mutual fund with a total of 5198 individual holdings.

• Total Holdings: 5198
• Top 10 Percentage: 6.61%
• Asset Class: Fixed Income
• Fund Category: US Mortgage
• Assets: 17.21B
• Forward PE Ratio: n/a

Top 25 Holdings

As of Jul 31, 2026

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No.	Symbol	Name	% Weight	Shares
1	n/a	Mktliq 12/31/2049	3.60%	6,425,756
2	G2SF.5.5 8.11	Government National Mortgage Association 5.5%	0.57%	102,890,000
3	FNCL.5.5 8.11	Federal National Mortgage Association 5.5%	0.43%	77,530,000
4	FNCL.6 8.11	Federal National Mortgage Association 6.30769%	0.33%	58,300,000
5	G2.MB0025	Government National Mortgage Association	0.29%	54,022,651
6	G2.MB0871	Government National Mortgage Association	0.29%	53,350,926
7	FNCL.5 9.11	Federal National Mortgage Association 5.34615%	0.28%	52,020,000
8	G2.MB1216	Government National Mortgage Association	0.27%	49,968,131
9	FN.CC2762	Federal National Mortgage Association	0.27%	48,546,666
10	G2.MB0936	Government National Mortgage Association	0.27%	49,442,851
11	G2.MB0024	Government National Mortgage Association	0.26%	49,015,544
12	FR.SD4155	Federal Home Loan Mortgage Corp.	0.25%	58,022,808
13	FR.RQ0118	Federal Home Loan Mortgage Corp.	0.25%	45,612,777
14	G2SF.5 8.11	Government National Mortgage Association 5.30769%	0.24%	44,600,000
15	G2.MB1142	Government National Mortgage Association	0.24%	43,519,586
16	FR.SD8146	Federal Home Loan Mortgage Corp.	0.24%	53,310,458
17	G2.MB1070	Government National Mortgage Association	0.23%	42,949,326
18	FR.RQ0094	Federal Home Loan Mortgage Corp.	0.22%	41,520,392
19	FR.RQ0056	Federal Home Loan Mortgage Corp.	0.22%	39,813,680
20	G2SF.5.5 9.11	Government National Mortgage Association 5.5%	0.22%	38,690,000
21	FR.SD8128	Federal Home Loan Mortgage Corp.	0.21%	48,208,355
22	FN.MA4325	Federal National Mortgage Association	0.21%	47,847,290
23	n/a	Us Dollar	0.21%	37,650,006
24	FN.MA4119	Federal National Mortgage Association	0.21%	47,600,607
25	G2.MA8347	Government National Mortgage Association	0.20%	37,580,896

Showing 25 of 5198 holdings

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Data Source: Finnhub Last updated: Jul 31, 2026

Mutual fund holdings data is provided by Finnhub. Holdings are typically published by the fund issuer on a monthly or quarterly basis, often with a 30–60 day delay.

Update frequency:

Quarterly

Last checked:

Aug 26, 2026

Data Sources Report a data error

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