Morningstar

Vanguard Mortgage-Backed Securities Index Fund Admiral Shares VMBSX

Morningstar Medalist Rating
Medalist Rating as of | See Vanguard Investment Hub
  • NAV / 1-Day Return 17.69  /  −0.28 %
  • Total Assets 17.6B
  • Adj. Expense Ratio
    0.040%
  • Expense Ratio 0.060%
  • Distribution Fee Level Low
  • Share Class Type Institutional
  • Category Government Mortgage-Backed Bond
  • Credit Quality / Interest Rate Sensitivity —
  • Min. Initial Investment 3,000
  • Status Open
  • TTM Yield 4.05%
  • Effective Duration 5.10 years

USD | NAV as of Oct 03, 2026 | 1-Day Return as of Oct 03, 2026, 12:10 AM GMT+0

Morningstar’s Analysis VMBSX

Will VMBSX outperform in the future?

Get our overall rating based on a fundamental assessment of the pillars below.

  • Process Pillar

    The Process Pillar is our assessment of how sensible, clearly defined, and repeatable VMBSX’s performance objective and investment process is for both security selection and portfolio construction.

  • People Pillar

    The People Pillar is our evaluation of the VMBSX management team’s experience and ability. We find that high-quality management teams deliver superior performance relative to their benchmarks and/or peers.

  • Parent Pillar

    The Parent Pillar is our rating of VMBSX’s parent organization’s priorities and whether they’re in line with investors’ interests.

null Morningstar Automated Analysis

Morningstar Automated Analysis

Summary

Vanguard Mortgage-Backed Secs Idx Adm holds a quantitatively derived Bronze Morningstar Medalist Rating. The rating reflects that it has scored better than the norm on factors Morningstar research associates with future outperformance relative to category peers.

by Morningstar Automated Analysis
Rated on Published on

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Portfolio Holdings VMBSX

More VMBSX Holdings
  • Current Portfolio Date
  • Equity Holdings —
  • Bond Holdings —
  • Other Holdings —
  • % Assets in Top 10 Holdings 2.0
Top 10 Holdings
% Portfolio Weight
Market Value USD
Sector

Mktliq 12/31/2049

4.61 847M
Cash and Equivalents

Federal National Mortgage Association 5.5%

0.53 98M
Securitized

Us Dollar

0.50 91M
Cash and Equivalents

Government National Mortgage Association 5.5%

0.36 67M
Securitized

Federal National Mortgage Association 5.34615%

0.35 64M
Securitized

Government National Mortgage Association

0.28 52M
Securitized

Government National Mortgage Association

0.28 52M
Securitized

Government National Mortgage Association

0.26 48M
Securitized

Federal National Mortgage Association 2.34615%

0.26 48M
Securitized

Government National Mortgage Association

0.26 48M
Securitized

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