ISTB vs GVI: Holdings Overlap
ISTBiShares Core 1-5 Year USD Bond ETF
iShares · 7059 holdings · $5.1B · as of 2026-04-30
GVIiShares Intermediate Government/Credit Bond ETF
iShares · 6177 holdings · $3.8B · as of 2026-05-31
Holdings snapshots are 31 days apart (ISTB: 2026-04-30, GVI: 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 ISTB and GVI?
iShares Core 1-5 Year USD Bond ETF (ISTB, by iShares) holds 7059 positions; iShares Intermediate Government/Credit Bond ETF (GVI, by iShares) holds 6177. They have 3336 holdings in common, and by portfolio weight the two funds are 51.0% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 51.0%Sum of the smaller weight of each shared holding
- Shared Holdings
- 3336ISTB holds 7059 · GVI holds 6177
- Weight in Shared Holdings
- ISTB 72%·GVI 61%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
3723 of 7059 positions (26.8% of the fund) are not held by GVI. Showing the top 30 by weight.
- U.S. Treasury Notes0.73%
- U.S. Treasury Notes0.58%
- U.S. Treasury Notes0.45%
- U.S. Treasury Notes0.21%
- Freddie Mac Multifamily Structured Pass Through Certificates0.21%
- Uniform Mortgage-Backed Security, TBA0.20%
Only in GVI
2841 of 6177 positions (38.0% of the fund) are not held by ISTB. Showing the top 30 by weight.
- U.S. Treasury Notes0.79%
- U.S. Treasury Notes0.77%
- U.S. Treasury Notes0.76%
- U.S. Treasury Notes0.76%
- U.S. Treasury Notes0.76%
- U.S. Treasury Notes0.74%
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% |
| GVI | +0.2% | +0.3% | +2.4% | +4.4% | +0.9% | +1.7% | 3.65% |
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 GVI →
Shared Holdings(3336)
The top 10 shared positions account for 10% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.99% | 0.63% | 0.63% |
|---|---|---|---|
| U.S. Treasury Notes | 0.60% | 0.60% | 0.60% |
| U.S. Treasury Notes | 0.98% | 0.56% | 0.56% |
| U.S. Treasury Notes | 0.56% | 0.54% | 0.54% |
| U.S. Treasury Notes | 0.67% | 0.54% | 0.54% |
| U.S. Treasury Notes | 0.96% | 0.53% | 0.53% |
| U.S. Treasury Notes | 0.67% | 0.52% | 0.52% |
| U.S. Treasury Notes | 0.86% | 0.49% | 0.49% |
| U.S. Treasury Notes | 0.71% | 0.48% | 0.48% |
| U.S. Treasury Notes | 0.64% | 0.46% | 0.46% |
| U.S. Treasury Notes | 0.59% | 0.46% | 0.46% |
| U.S. Treasury Notes | 0.53% | 0.46% | 0.46% |
| U.S. Treasury Notes | 0.46% | 0.61% | 0.46% |
| U.S. Treasury Notes | 0.46% | 0.55% | 0.46% |
| U.S. Treasury Notes | 0.62% | 0.45% | 0.45% |
| U.S. Treasury Notes | 0.40% | 0.44% | 0.40% |
| U.S. Treasury Notes | 0.44% | 0.40% | 0.40% |
| U.S. Treasury Notes | 0.83% | 0.40% | 0.40% |
| U.S. Treasury Notes | 0.68% | 0.38% | 0.38% |
| U.S. Treasury Notes | 0.81% | 0.38% | 0.38% |
| U.S. Treasury Notes | 0.45% | 0.38% | 0.38% |
| U.S. Treasury Notes | 0.48% | 0.36% | 0.36% |
| U.S. Treasury Notes | 0.91% | 0.35% | 0.35% |
| U.S. Treasury Notes | 0.64% | 0.35% | 0.35% |
| U.S. Treasury Notes | 0.39% | 0.35% | 0.35% |
Showing the top 250 of 3336 shared holdings by overlap weight.
Frequently Asked Questions
How much do ISTB and GVI overlap?
ISTB and GVI overlap by 51.0% of portfolio weight. They share 3336 holdings (ISTB holds 7059 positions and GVI holds 6177), based on each fund's latest SEC-reported holdings.
Is it redundant to own both ISTB and GVI?
The two portfolios are 51.0% identical by weight. Owning both is defensible: they share a meaningful core, but each fund adds exposure the other lacks.
What are the biggest shared holdings of ISTB and GVI?
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 10% of the total overlap.
What does ISTB own that GVI doesn't?
3723 positions (26.8% 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, 2841 positions (38.0% of GVI) are unique to GVI.