ETF comparison
MBB vs SCHZ
Both US Aggregate Bond.
Holdings overlap
816 positions appear in both funds. Buying equal dollars of MBB and SCHZ would leave roughly 6.9% 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
SCHZ is 1 bps cheaper than MBB. On a $100,000 position that's about $10/yr more in fees for MBB.
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 SCHZ.
Top shared holdings
816 shared in total| # | Holding | In MBB | In SCHZ | Overlap |
|---|---|---|---|---|
| 1 | Fannie Mae | 0.11% | 0.12% | 0.11% |
| 2 | Freddie Mac | 0.47% | 0.10% | 0.10% |
| 3 | Freddie Mac | 0.98% | 0.10% | 0.10% |
| 4 | Government National Mortgage Association | 0.51% | 0.09% | 0.09% |
| 5 | Government National Mortgage Association | 0.15% | 0.08% | 0.08% |
| 6 | Freddie Mac | 0.21% | 0.08% | 0.08% |
| 7 | Fannie Mae | 0.29% | 0.08% | 0.08% |
| 8 | Freddie Mac | 0.22% | 0.07% | 0.07% |
| 9 | Government National Mortgage Association | 0.07% | 0.07% | 0.07% |
| 10 | Fannie Mae | 0.09% | 0.06% | 0.06% |
| 11 | Freddie Mac | 0.07% | 0.06% | 0.06% |
| 12 | Fannie Mae | 0.28% | 0.06% | 0.06% |
Only in MBB
10,393 total- Government National Mortgage Association 1.05%
- UMBS, TBA 0.85%
- UMBS, TBA 0.70%
- Government National Mortgage Association 0.53%
- Government National Mortgage Association 0.49%
- Government National Mortgage Association 0.46%
- Fannie Mae 0.41%
- UMBS, TBA 0.39%
- UMBS, TBA 0.32%
- Fannie Mae 0.31%
Only in SCHZ
11,510 total- United States Treasury 0.39%
- United States Treasury 0.39%
- United States Treasury 0.39%
- United States Treasury 0.37%
- United States Treasury 0.37%
- United States Treasury 0.37%
- United States Treasury 0.36%
- United States Treasury 0.36%
- United States Treasury 0.36%
- United States Treasury 0.36%
Related comparisons
More comparisons with MBB
- MBB vs SPAB · State Street SPDR Portfolio Aggregate Bond Index ETF 5.8%
- MBB vs BND · Vanguard Total Bond Market Index Fund ETF Shares 5.4%
- MBB vs FBND · Fidelity Total Bond ETF 5.2%
- MBB vs VCRB · Vanguard Core Bond ETF 3.2%
- MBB vs JCPB · JPMorgan Core Plus Bond ETF 2.3%
- MBB vs AGGY · WisdomTree Yield Enhanced U.S. Aggregate Bond Fund 1.6%
More comparisons with SCHZ
- SCHZ vs VCLT · Vanguard Long-Term Corporate Bond Index Fund ETF Shares 6.7%
- SCHZ vs SCHI · Schwab 5-10 Year Corporate Bond ETF 6.7%
- SCHZ vs JCPB · JPMorgan Core Plus Bond ETF 6.5%
- SCHZ vs IGIB · iShares 5-10 Year Investment Grade Corporate Bond ETF 6.3%
- SCHZ vs VCIT · Vanguard Intermediate-Term Corporate Bond Index Fund ETF Shares 6.2%
- SCHZ vs CORP · PIMCO Investment Grade Corporate Bond Exchange-Traded Fund 5.3%
Percentages are holdings overlap with the named fund.
Open MBB or SCHZ 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.