ETF comparison
MBB vs VCRB
Both US Aggregate Bond.
Holdings overlap
125 positions appear in both funds. Buying equal dollars of MBB and VCRB would leave roughly 3.2% 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
MBB is 6 bps cheaper than VCRB. On a $100,000 position that's about $60/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 MBB vs VCRB.
Top shared holdings
125 shared in total| # | Holding | In MBB | In VCRB | Overlap |
|---|---|---|---|---|
| 1 | Freddie Mac | 1.05% | 0.24% | 0.24% |
| 2 | Fannie Mae | 0.12% | 0.20% | 0.12% |
| 3 | Government National Mortgage Association | 0.14% | 0.11% | 0.11% |
| 4 | Government National Mortgage Association | 0.10% | 0.10% | 0.10% |
| 5 | Government National Mortgage Association | 0.17% | 0.08% | 0.08% |
| 6 | Government National Mortgage Association | 0.08% | 0.07% | 0.07% |
| 7 | Freddie Mac | 0.22% | 0.07% | 0.07% |
| 8 | Government National Mortgage Association | 0.28% | 0.07% | 0.07% |
| 9 | Fannie Mae | 0.09% | 0.07% | 0.07% |
| 10 | Government National Mortgage Association | 0.09% | 0.07% | 0.07% |
| 11 | Government National Mortgage Association | 0.28% | 0.07% | 0.07% |
| 12 | Government National Mortgage Association | 0.06% | 0.14% | 0.06% |
Only in MBB
11,019 total- Government National Mortgage Association 0.95%
- UMBS, TBA 0.83%
- Government National Mortgage Association 0.67%
- UMBS, TBA 0.64%
- Government National Mortgage Association 0.55%
- Government National Mortgage Association 0.54%
- Fannie Mae 0.52%
- Freddie Mac 0.50%
- Government National Mortgage Association 0.46%
- Government National Mortgage Association 0.45%
Only in VCRB
3,289 total- Fannie Mae or Freddie Mac 2.33%
- United States Treasury Note/Bond 1.02%
- NVIDIA Corp 0.97%
- NVIDIA Corp 0.75%
- Fannie Mae or Freddie Mac 0.68%
- 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%
Related comparisons
More comparisons with MBB
- MBB vs JCPB · JPMorgan Core Plus Bond ETF 2.3%
- MBB vs AGGY · WisdomTree Yield Enhanced U.S. Aggregate Bond Fund 1.4%
- MBB vs CGCP · Capital Group Core Plus Income ETF 0.9%
- MBB vs BOND · PIMCO Active Bond Exchange-Traded Fund 0.6%
- MBB vs PYLD · PIMCO ETF Trust - PIMCO Multisector Bond Active Exchange-Traded Fund 0.2%
- MBB vs BINC · iShares Flexible Income Active ETF 0.0%
More comparisons with VCRB
- 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%
- VCRB vs NEAR · iShares Short Duration Bond Active ETF 2.6%
- VCRB vs BOND · PIMCO Active Bond Exchange-Traded Fund 2.2%
- VCRB vs BINC · iShares Flexible Income Active ETF 1.4%
- VCRB vs JPST · JPMorgan Ultra-Short Income ETF 1.1%
Percentages are holdings overlap with the named fund.
Open MBB or VCRB 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.