# VMBS holdings by issuer, coupon and maturity VMBS holds 5,123 positions from 3 issuers in its SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29. The largest kinds are agency mortgage-backed securities at 97.8% of net assets and money market funds at 5.1%. Its debt averages a 4.02% coupon and 23.9 years to maturity, and its filing gives a duration of 5.20 years. Vanguard Mortgage-Backed Securities Index Fund, fixed income ETF, Vanguard. Canonical page: https://tickerinside.com/etf/vmbs/ Holdings from VMBS's SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29 (https://www.sec.gov/Archives/edgar/data/1021882/000102188226000641/). Licence: CC BY 4.0, attribution to TickerInside. Measurements, not investment advice. ## What does VMBS hold, from its SEC Form N-PORT for the period ended 2026-05-31? | Kind of holding | Of net assets | | --- | --- | | Agency mortgage-backed securities | 97.79% | | Money market funds | 5.08% | Average coupon: 4.02%. Average maturity: 23.9 years. Duration: 5.20 years. ## Which issuers does VMBS hold the most of? The largest issuer is Fannie Mae at 39.95% of net assets in 2,430 lines, then Freddie Mac at 34.38% and Ginnie Mae at 25.01%. | Rank | Issuer | Of net assets | Lines | | --- | --- | --- | --- | | 1 | Fannie Mae | 39.95% | 2430 | | 2 | Freddie Mac | 34.38% | 1741 | | 3 | Ginnie Mae | 25.01% | 941 | ## When does VMBS's debt mature? | Time to maturity | Of net assets | | --- | --- | | under 1 year | 3.51% | | 1 to 3 years | 0.06% | | 3 to 5 years | 0.10% | | 5 to 7 years | 0.39% | | 7 to 10 years | 2.25% | | 10 to 20 years | 9.81% | | 20 to 30 years | 83.23% | ## Which bond ETFs with a page here share VMBS's issuers? Ranked by the lower of its issuer and maturity overlaps, MBB shares the most with VMBS: 91.1% of their weight by issuer, in 3 issuers both hold, and 93.2% by time to maturity. | ETF | Overlap by issuer | By time to maturity | Issuers in both | Average maturity | | --- | --- | --- | --- | --- | | [MBB](https://tickerinside.com/etf/mbb/) | 91.1% | 93.2% | 3 | 24.2 years | | [AGG](https://tickerinside.com/etf/agg/) | 22.7% | 42.6% | 3 | 12.5 years | | [IUSB](https://tickerinside.com/etf/iusb/) | 20.4% | 36.9% | 3 | 11.8 years | | [BND](https://tickerinside.com/etf/bnd/) | 20.3% | 40.5% | 3 | 11.7 years | | [FBND](https://tickerinside.com/etf/fbnd/) | 15.6% | 38.1% | 3 | 14.1 years | | [MINT](https://tickerinside.com/etf/mint/) | 13.7% | 17.6% | 3 | 6.3 years | | [PYLD](https://tickerinside.com/etf/pyld/) | 7.3% | 28.7% | 3 | 15.7 years | | [BINC](https://tickerinside.com/etf/binc/) | 2.0% | 23.7% | 3 | 15.5 years | | [BIV](https://tickerinside.com/etf/biv/) | 0.3% | 5.5% | 2 | 7.5 years | | [JPST](https://tickerinside.com/etf/jpst/) | 0.1% | 7.0% | 1 | 2.1 years | | [PULS](https://tickerinside.com/etf/puls/) | 0.1% | 15.8% | 1 | 8.4 years | | [BIL](https://tickerinside.com/etf/bil/) | 0.0% | 3.5% | 0 | 0.2 years | From each fund's SEC Form N-PORT: PULS for the period ended 2026-05-29, AGG, FBND, JPST, MBB and VMBS 2026-05-31, BIL, BIV, BND, MINT and PYLD 2026-06-30, BINC and IUSB 2026-07-31. The issuer figures count the 1,000 largest of AGG's 1,355 issuers, 98.0% of its net assets, and the 1,000 largest of IUSB's 3,459 issuers, 91.7% of its net assets, and the 1,000 largest of BND's 1,778 issuers, 97.9% of its net assets, and the 1,000 largest of FBND's 1,675 issuers, 103.0% of its net assets, and the 1,000 largest of BINC's 1,565 issuers, 101.8% of its net assets. Every issuer and the largest lines: https://tickerinside.com/api/v1/etf/vmbs.json Method: https://tickerinside.com/how-the-numbers-are-produced/#fixed-income ## Cite this page TickerInside, Vanguard Mortgage-Backed Securities Index Fund (VMBS), holdings by issuer from SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29, https://tickerinside.com/etf/vmbs/, CC BY 4.0 TickerInside (https://tickerinside.com/etf/vmbs/)