ETF comparison
VCRB vs VMBS
Both US Aggregate Bond.
Vanguard Core Bond ETF · Vanguard Mortgage-Backed Securities Index Fund ETF Shares
Holdings overlap
133 positions appear in both funds. Buying equal dollars of VCRB and VMBS would leave roughly 4.6% 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 7 bps cheaper than VCRB. On a $100,000 position that's about $70/yr more in fees for VCRB.
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 VCRB vs VMBS.
Top shared holdings
133 shared in total| # | Holding | In VCRB | In VMBS | Overlap |
|---|---|---|---|---|
| 1 | Freddie Mac Pool | 0.24% | 0.26% | 0.24% |
| 2 | Fannie Mae Pool | 0.20% | 0.23% | 0.20% |
| 3 | Ginnie Mae II Pool | 0.16% | 0.13% | 0.13% |
| 4 | Fannie Mae Pool | 0.15% | 0.12% | 0.12% |
| 5 | Freddie Mac Pool | 0.11% | 0.23% | 0.11% |
| 6 | Ginnie Mae II Pool | 0.11% | 0.11% | 0.11% |
| 7 | Ginnie Mae II Pool | 0.10% | 0.13% | 0.10% |
| 8 | Ginnie Mae II Pool | 0.10% | 0.22% | 0.10% |
| 9 | Ginnie Mae II Pool | 0.10% | 0.09% | 0.09% |
| 10 | Ginnie Mae II Pool | 0.14% | 0.09% | 0.09% |
| 11 | Ginnie Mae II Pool | 0.08% | 0.13% | 0.08% |
| 12 | Ginnie Mae II Pool | 0.08% | 0.36% | 0.08% |
Only in VCRB
3,281 total- United States Treasury Note/Bond 1.02%
- NVIDIA Corp 0.97%
- NVIDIA Corp 0.75%
- United States Treasury Note/Bond 0.65%
- Kreditanstalt fuer Wiederaufbau 0.60%
- Fannie Mae REMICS 0.59%
- OBX 2026-INV2 Trust 0.57%
- Ginnie Mae II Pool 0.56%
- United States Treasury Note/Bond 0.55%
- Finland Government International Bond 0.54%
Only in VMBS
4,979 total- Fannie Mae or Freddie Mac 0.52%
- 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%
- Freddie Mac Pool 0.27%
- Freddie Mac Pool 0.27%
- Fannie Mae or Freddie Mac 0.25%
- Freddie Mac Pool 0.24%
Related comparisons
More comparisons with VCRB
- VCRB vs TLT · iShares 20+ Year Treasury Bond ETF 4.0%
- VCRB vs VUSB · Vanguard Ultra-Short Bond ETF 3.9%
- VCRB vs DFCF · Dimensional Core Fixed Income ETF 3.4%
- VCRB vs MBB · iShares MBS ETF 3.2%
- VCRB vs SHY · iShares 1-3 Year Treasury Bond ETF 2.6%
- VCRB vs VGSH · Vanguard Short-Term Treasury Index Fund ETF Shares 2.6%
More comparisons with VMBS
- VMBS vs FBND · Fidelity Total Bond ETF 4.5%
- VMBS vs CGCP · Capital Group Core Plus Income ETF 1.8%
- VMBS vs AGGY · WisdomTree Yield Enhanced U.S. Aggregate Bond Fund 1.8%
- VMBS vs JCPB · JPMorgan Core Plus Bond ETF 1.1%
- VMBS vs BOND · PIMCO Active Bond Exchange-Traded Fund 0.8%
- VMBS vs PYLD · PIMCO ETF Trust - PIMCO Multisector Bond Active Exchange-Traded Fund 0.2%
Percentages are holdings overlap with the named fund.
Open VCRB 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.