ISTB vs SCHO: Holdings Overlap
ISTBiShares Core 1-5 Year USD Bond ETF
iShares · 7059 holdings · $5.1B · as of 2026-04-30
SCHOSchwab Short-Term U.S. Treasury ETF
Schwab · 96 holdings · $12.9B · as of 2026-03-31
Holdings snapshots are 30 days apart (ISTB: 2026-04-30, SCHO: 2026-03-31). 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 ISTB and SCHO?
iShares Core 1-5 Year USD Bond ETF (ISTB, by iShares) holds 7059 positions; Schwab Short-Term U.S. Treasury ETF (SCHO, by Schwab) holds 96. They have 84 holdings in common, and by portfolio weight the two funds are 27.6% identical. In practical terms the pair is lightly overlapping, with most of each portfolio distinct.
- Overlap by Weight
- 27.6%Sum of the smaller weight of each shared holding
- Shared Holdings
- 84ISTB holds 7059 · SCHO holds 96
- Weight in Shared Holdings
- ISTB 28%·SCHO 92%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 ISTB
6975 of 7059 positions (71.0% of the fund) are not held by SCHO. Showing the top 30 by weight.
- U.S. Treasury Notes0.99%
- U.S. Treasury Notes0.98%
- U.S. Treasury Notes0.96%
- U.S. Treasury Notes0.91%
- U.S. Treasury Notes0.89%
- U.S. Treasury Notes0.86%
Only in SCHO
12 of 96 positions (7.1% of the fund) are not held by ISTB.
- U.S. Treasury Notes1.37%
- U.S. Treasury Notes1.14%
- U.S. Treasury Notes1.11%
- U.S. Treasury Notes1.00%
- U.S. Treasury Notes0.83%
- U.S. Treasury Notes0.60%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| ISTB | +0.3% | +1.0% | +3.0% | +5.0% | +1.9% | +2.3% | 4.27% |
| SCHO | +0.3% | +1.0% | +2.8% | +4.3% | +1.9% | +1.8% | 3.87% |
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 ISTB vs SCHO →
Shared Holdings(84)
The top 10 shared positions account for 21% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.73% | 1.38% | 0.73% |
|---|---|---|---|
| U.S. Treasury Notes | 0.62% | 1.37% | 0.62% |
| U.S. Treasury Notes | 0.60% | 1.38% | 0.60% |
| U.S. Treasury Notes | 0.59% | 1.29% | 0.59% |
| U.S. Treasury Notes | 0.58% | 1.16% | 0.58% |
| U.S. Treasury Notes | 0.57% | 1.16% | 0.57% |
| U.S. Treasury Notes | 0.55% | 1.15% | 0.55% |
| U.S. Treasury Notes | 0.55% | 1.17% | 0.55% |
| U.S. Treasury Notes | 0.52% | 1.22% | 0.52% |
| U.S. Treasury Notes | 0.50% | 1.22% | 0.50% |
| U.S. Treasury Notes | 0.50% | 1.15% | 0.50% |
| U.S. Treasury Notes | 0.49% | 0.99% | 0.49% |
| U.S. Treasury Notes | 0.48% | 0.94% | 0.48% |
| U.S. Treasury Notes | 0.47% | 1.16% | 0.47% |
| U.S. Treasury Notes | 0.47% | 1.05% | 0.47% |
| U.S. Treasury Notes | 0.46% | 0.87% | 0.46% |
| U.S. Treasury Notes | 0.46% | 2.22% | 0.46% |
| U.S. Treasury Notes | 0.45% | 1.17% | 0.45% |
| U.S. Treasury Notes | 0.45% | 0.95% | 0.45% |
| U.S. Treasury Notes | 0.45% | 1.22% | 0.45% |
| U.S. Treasury Notes | 0.45% | 0.90% | 0.45% |
| U.S. Treasury Notes | 0.45% | 1.06% | 0.45% |
| U.S. Treasury Notes | 0.43% | 0.86% | 0.43% |
| U.S. Treasury Notes | 0.43% | 0.86% | 0.43% |
| U.S. Treasury Notes | 0.42% | 0.85% | 0.42% |
Frequently Asked Questions
How much do ISTB and SCHO overlap?
ISTB and SCHO overlap by 27.6% of portfolio weight. They share 84 holdings (ISTB holds 7059 positions and SCHO holds 96), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ISTB and SCHO?
The two portfolios are 27.6% 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 ISTB and SCHO?
The largest positions held by both funds are U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. Together the top 10 shared positions account for 21% of the total overlap.
What does ISTB own that SCHO doesn't?
6975 positions (71.0% of ISTB) are unique to ISTB, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 12 positions (7.1% of SCHO) are unique to SCHO.