VMBS holdings — VANGUARD MORTGAGE-BACKED SECURITIES INDEX FUND

VANGUARD MORTGAGE-BACKED SECURITIES INDEX FUND (VMBS) held 5,123 positions with net assets of $17.0B as of May 31, 2026, according to its Form N-PORT report to the SEC. Its top 10 holdings make up 8.0% of the fund, led by Vanguard Cmt Funds-Vanguard Market Liquidity Fund, Fannie Mae or Freddie Mac, Ginnie Mae II Pool.

VMBS top holdings

  1. Vanguard Cmt Funds-Vanguard Market Liquidity Fund — 5.08% ($866M)
  2. Fannie Mae or Freddie Mac — 0.52% ($89.1M)
  3. Ginnie Mae II Pool — 0.36% ($61.7M)
  4. Ginnie Mae II Pool — 0.32% ($54.5M)
  5. Ginnie Mae II Pool — 0.31% ($53.1M)
  6. Fannie Mae Pool — 0.29% ($50.2M)
  7. Ginnie Mae II Pool — 0.29% ($49.2M)
  8. Ginnie Mae II Pool — 0.29% ($49.2M)
  9. Ginnie Mae II Pool — 0.28% ($48.1M)
  10. Freddie Mac Pool — 0.27% ($46.8M)
  11. Freddie Mac Pool — 0.27% ($45.6M)
  12. Freddie Mac Pool — 0.26% ($43.7M)
  13. Fannie Mae or Freddie Mac — 0.25% ($42.9M)
  14. Freddie Mac Pool — 0.24% ($41.4M)
  15. Freddie Mac Pool — 0.24% ($40.8M)
  16. Freddie Mac Pool — 0.23% ($39.5M)
  17. Fannie Mae Pool — 0.23% ($39.2M)
  18. Ginnie Mae II Pool — 0.22% ($37.3M)
  19. Ginnie Mae II Pool — 0.21% ($36.3M)
  20. Freddie Mac Pool — 0.21% ($35.7M)
  21. Ginnie Mae II Pool — 0.20% ($34.4M)
  22. Ginnie Mae II Pool — 0.20% ($34.4M)
  23. Freddie Mac Pool — 0.20% ($34.4M)
  24. Fannie Mae or Freddie Mac — 0.20% ($34.4M)
  25. Ginnie Mae II Pool — 0.20% ($33.4M)

What are VMBS's top 10 holdings?

Vanguard Cmt Funds-Vanguard Market Liquidity Fund (5.1%), Fannie Mae or Freddie Mac (0.5%), Ginnie Mae II Pool (0.4%), Ginnie Mae II Pool (0.3%), Ginnie Mae II Pool (0.3%), Fannie Mae Pool (0.3%), Ginnie Mae II Pool (0.3%), Ginnie Mae II Pool (0.3%), Ginnie Mae II Pool (0.3%), Freddie Mac Pool (0.3%).

How many stocks are in VMBS?

VANGUARD MORTGAGE-BACKED SECURITIES INDEX FUND reported 5,123 holdings as of May 31, 2026.

Share classes: VMBIX, VMBS, VMBSX

All ETF and mutual fund holdings