VMBS
US Aggregate BondVanguard Mortgage-Backed Securities Index Fund ETF Shares
Vanguard · Tracks Bloomberg US MBS Float Adjusted Index · Inception Oct 31, 2013
Composite score
Based on a 0.030% expense ratio.
Based on $17.34B in net assets.
Top-10 holdings represent 7.5% of net assets.
US Aggregate Bond base · ETF wrapper · 4.20% TTM yield.
The composite is a weighted average of the four core sub-scores above (cost, tax efficiency, liquidity, concentration). Missing sub-scores fall back to the per-category median when the category has at least 50% data coverage, so funds without (e.g.) parsed N-PORT holdings aren't accidentally boosted by renormalization. Tracking quality is shown where computable but isn't currently part of the composite weighting. See methodology for formulas, the tracking-quality partial-coverage rationale, and the dimensions we deliberately don't score (methodology v0.5.1).
Use VMBS in our tools
Tool · Cost
Compare VMBS's fee against another fund
Compounds the 0.030% expense ratio against a peer over decades.
Tool · Overlap
Compare VMBS's holdings with peers
Pairwise holdings heatmap, pre-loaded with similar US Aggregate Bond funds.
Tool · TLH
Find a tax-loss harvesting partner for VMBS
Ranks every catalog fund by holdings overlap, flags wash-sale risk.
Tool · Placement
Where should this fund live across your accounts?
Asset-location optimizer — places each fund in taxable / tax-deferred / Roth.
Top holdings
| # | Holding | Weight |
|---|---|---|
| 1 | Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 4.57% |
| 2 | Ginnie Mae II Pool | 0.44% |
| 3 | Fannie Mae or Freddie Mac | 0.43% |
| 4 | Fannie Mae or Freddie Mac | 0.34% |
| 5 | Fannie Mae or Freddie Mac | 0.32% |
| 6 | Ginnie Mae II Pool | 0.29% |
| 7 | Freddie Mac Pool | 0.29% |
| 8 | Ginnie Mae II Pool | 0.28% |
| 9 | Freddie Mac Pool | 0.27% |
| 10 | Fannie Mae or Freddie Mac | 0.26% |
Compare VMBS with another fund
Or skim the closest-overlap funds below.
Similar ETFs by holdings overlap
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