SCHZ vs VMBS: Holdings Overlap
SCHZSchwab U.S. Aggregate Bond ETF
Schwab · 12081 holdings · $10.5B · as of 2026-03-31
VMBSVanguard Mortgage-backed Securities Index Fund
Vanguard · 5112 holdings · $15.6B · as of 2026-05-31
Holdings snapshots are 61 days apart (SCHZ: 2026-03-31, VMBS: 2026-05-31). Weights and index membership change between snapshots, so the true current overlap is typically higher than shown. For funds tracking the same index, the gap can be 5–15 points.
How similar are SCHZ and VMBS?
Schwab U.S. Aggregate Bond ETF (SCHZ, by Schwab) holds 12081 positions; Vanguard Mortgage-backed Securities Index Fund (VMBS, by Vanguard) holds 5112. They have 942 holdings in common, and by portfolio weight the two funds are 11.0% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 11.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 942SCHZ holds 12081 · VMBS holds 5112
- Weight in Shared Holdings
- SCHZ 12%·VMBS 34%Share of each fund's weight in stocks both funds own
Based on each fund's latest official holdings. How is this calculated?
What makes each fund different
Only in SCHZ
11139 of 12081 positions (86.6% of the fund) are not held by VMBS. Showing the top 30 by weight.
- U.S. Treasury Notes0.44%
- U.S. Treasury Notes0.39%
- U.S. Treasury Notes0.38%
- U.S. Treasury Notes0.38%
- U.S. Treasury Notes0.38%
- U.S. Treasury Notes0.38%
Only in VMBS
4170 of 5112 positions (65.1% of the fund) are not held by SCHZ. Showing the top 30 by weight.
- Uniform Mortgage-Backed Security, TBA0.52%
- G2SF 5.5 7/260.36%
- FN CC27620.29%
- Ginnie Mae0.29%
- FR SD41550.27%
- FR RQ01180.27%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| SCHZ | -0.2% | +0.1% | +2.5% | +4.2% | -0.2% | +1.4% | 4.20% |
| VMBS | -0.1% | +0.6% | +4.1% | +4.9% | +0.4% | +1.3% | 4.23% |
Total returns including dividends, from adjusted daily closes as of 2026-08-07. 3Y/5Y/10Y are annualized. Yield is trailing-12-month distributions over the last close. Past performance does not predict future results.
Project the growth of $10,000 in SCHZ vs VMBS →
Shared Holdings(942)
The top 10 shared positions account for 9% of the overlap, led by Freddie Mac Pool, Uniform Mortgage-Backed Securities and Freddie Mac Pool.
| Freddie Mac Pool | 0.12% | 0.23% | 0.12% |
|---|---|---|---|
| Uniform Mortgage-Backed Securities | 0.11% | 0.26% | 0.11% |
| Freddie Mac Pool | 0.10% | 0.20% | 0.10% |
| Freddie Mac Pool | 0.10% | 0.15% | 0.10% |
| Government National Mortgage Association | 0.09% | 0.10% | 0.09% |
| Freddie Mac Pool | 0.09% | 0.21% | 0.09% |
| Freddie Mac Pool | 0.09% | 0.20% | 0.09% |
| Uniform Mortgage-Backed Securities | 0.08% | 0.15% | 0.08% |
| Uniform Mortgage-Backed Securities | 0.08% | 0.23% | 0.08% |
| Freddie Mac Pool | 0.08% | 0.14% | 0.08% |
| Fannie Mae Pool | 0.08% | 0.10% | 0.08% |
| Uniform Mortgage-Backed Securities | 0.08% | 0.16% | 0.08% |
| Freddie Mac Pool | 0.07% | 0.18% | 0.07% |
| Fannie Mae Pool | 0.08% | 0.07% | 0.07% |
| Uniform Mortgage-Backed Securities | 0.11% | 0.07% | 0.07% |
| Freddie Mac Pool | 0.07% | 0.10% | 0.07% |
| Ginnie Mae II Pool | 0.07% | 0.14% | 0.07% |
| Fannie Mae Pool | 0.07% | 0.08% | 0.07% |
| Fannie Mae Pool | 0.07% | 0.11% | 0.07% |
| Fannie Mae Pool | 0.07% | 0.17% | 0.07% |
| Freddie Mac Pool | 0.06% | 0.15% | 0.06% |
| Uniform Mortgage-Backed Securities | 0.06% | 0.07% | 0.06% |
| Government National Mortgage Association | 0.06% | 0.13% | 0.06% |
| Government National Mortgage Association | 0.06% | 0.20% | 0.06% |
| Fannie Mae Pool | 0.06% | 0.07% | 0.06% |
Showing the top 250 of 942 shared holdings by overlap weight.
Frequently Asked Questions
How much do SCHZ and VMBS overlap?
SCHZ and VMBS overlap by 11.0% of portfolio weight. They share 942 holdings (SCHZ holds 12081 positions and VMBS holds 5112), based on each fund's latest SEC-reported holdings.
Is it redundant to own both SCHZ and VMBS?
The two portfolios are 11.0% identical by weight. Owning both is not redundant. Most of each portfolio is distinct, so the funds can serve different roles.
What are the biggest shared holdings of SCHZ and VMBS?
The largest positions held by both funds are Freddie Mac Pool, Uniform Mortgage-Backed Securities, Freddie Mac Pool, Freddie Mac Pool and Government National Mortgage Association. Together the top 10 shared positions account for 9% of the total overlap.
What does SCHZ own that VMBS doesn't?
11139 positions (86.6% of SCHZ) are unique to SCHZ, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 4170 positions (65.1% of VMBS) are unique to VMBS.