ETF comparison
BNDX vs VMBS
International Bond vs US Aggregate Bond.
Vanguard Total International Bond Index Fund ETF Shares · Vanguard Mortgage-Backed Securities Index Fund ETF Shares
Holdings overlap
0 positions appear in both funds. Buying equal dollars of BNDX and VMBS would leave roughly 0.0% of each dollar exposed to the same underlying securities.
Unmatched is the part of a fund's weight the other fund doesn't match: names only it holds, plus any extra weight it puts in names both funds hold.
Side by side
Sub-score comparison
Tracking quality isn't part of the composite — see what we don't score for why.
Cost difference
VMBS is 4 bps cheaper than BNDX. On a $100,000 position that's about $40/yr more in fees for BNDX.
Fee figure is the annual expense charged on $100,000. To see how the gap compounds over a multi-decade holding period, open the cost calculator pre-filled with BNDX vs VMBS.
Top shared holdings
0 shared in totalNo shared holdings between these funds.
Only in BNDX
6,818 total- United Kingdom Gilt 0.41%
- French Republic Government Bond OAT 0.37%
- French Republic Government Bond OAT 0.36%
- United Kingdom Gilt 0.36%
- United Kingdom Gilt 0.35%
- United Kingdom Gilt 0.34%
- French Republic Government Bond OAT 0.33%
- French Republic Government Bond OAT 0.33%
- Bundesrepublik Deutschland Bundesanleihe 0.30%
- United Kingdom Gilt 0.30%
Only in VMBS
5,112 total- Fannie Mae or Freddie Mac 0.52%
- Ginnie Mae II Pool 0.36%
- Ginnie Mae II Pool 0.32%
- Ginnie Mae II Pool 0.31%
- Fannie Mae Pool 0.29%
- Ginnie Mae II Pool 0.29%
- Ginnie Mae II Pool 0.29%
- Ginnie Mae II Pool 0.28%
- Freddie Mac Pool 0.27%
- Freddie Mac Pool 0.27%
Related comparisons
More comparisons with BNDX
- BNDX vs VTC · Vanguard Total Corporate Bond ETF ETF Shares 0.0%
- BNDX vs VTEB · Vanguard Tax-Exempt Bond Index Fund ETF Shares 0.0%
- BNDX vs VTIP · Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares 0.0%
- BNDX vs VWOB · Vanguard Emerging Markets Government Bond Index Fund ETF Shares 0.0%
- BNDX vs ZROZ · PIMCO 25+ Year Zero Coupon U.S. Treasury Index Exchange-Traded Fund 0.0%
- BNDX vs IAGG · iShares Core International Aggregate Bond ETF 48.7%
More comparisons with VMBS
- VMBS vs BSV · Vanguard Short-Term Bond Index Fund ETF Shares 0.0%
- VMBS vs DFCF · Dimensional Core Fixed Income ETF 0.0%
- VMBS vs FLOT · iShares Floating Rate Bond ETF 0.0%
- VMBS vs GOVT · iShares U.S. Treasury Bond ETF 0.0%
- VMBS vs GVI · iShares Intermediate Government/Credit Bond ETF 0.0%
- VMBS vs ICSH · iShares Ultra Short Duration Bond Active ETF 0.0%
Percentages are holdings overlap with the named fund.
Open BNDX or VMBS at a brokerage
Both funds trade commission-free at major US brokerages.
Affiliate links — opening an account through these earns PlainIndex a one-time referral. Scoring is computed before any affiliate consideration; see our methodology and funding disclosure.
Holdings overlap is the sum of min(weight_a, weight_b) over positions
matched on ISIN (CUSIP fallback). Methodology: see
/methodology/.
Comparing two funds doesn't endorse swapping one for the other. Tax-lot history, account type, and personal goals matter — PlainIndex publishes data and methodology, not investment advice.