IUSB vs GVI: Holdings Overlap
IUSBiShares Core Universal USD Bond ETF
iShares · 17783 holdings · $43.2B · 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 (IUSB: 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 IUSB and GVI?
iShares Core Universal USD Bond ETF (IUSB, by iShares) holds 17783 positions; iShares Intermediate Government/Credit Bond ETF (GVI, by iShares) holds 6177. They have 6008 holdings in common, and by portfolio weight the two funds are 46.1% identical. In practical terms the pair is moderately overlapping; they share a meaningful core, but each fund adds distinct exposure.
- Overlap by Weight
- 46.1%Sum of the smaller weight of each shared holding
- Shared Holdings
- 6008IUSB holds 17783 · GVI holds 6177
- Weight in Shared Holdings
- IUSB 46%·GVI 97%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 IUSB
11775 of 17783 positions (52.0% of the fund) are not held by GVI. Showing the top 30 by weight.
- Uniform Mortgage-Backed Securities0.32%
- U.S. Treasury Notes0.26%
- U.S. Treasury Notes0.24%
- Uniform Mortgage-Backed Securities0.22%
- U.S. Treasury Notes0.22%
- Government National Mortgage Association0.21%
Only in GVI
169 of 6177 positions (1.7% of the fund) are not held by IUSB. Showing the top 30 by weight.
- U.S. Treasury Notes0.29%
- U.S. Treasury Notes0.27%
- U.S. Treasury Notes0.20%
- U.S. Treasury Notes0.11%
- U.S. Treasury Notes0.09%
- Federal National Mortgage Association0.05%
Performance
| Fund | 1M | YTD | 1Y | 3Y (ann.) | 5Y (ann.) | 10Y (ann.) | Yield |
|---|---|---|---|---|---|---|---|
| IUSB | -0.2% | +0.3% | +2.8% | +4.7% | +0.2% | +1.8% | 4.28% |
| 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 IUSB vs GVI →
Shared Holdings(6008)
The top 10 shared positions account for 8% of the overlap, led by U.S. Treasury Notes, U.S. Treasury Notes and U.S. Treasury Notes.
| U.S. Treasury Notes | 0.37% | 0.76% | 0.37% |
|---|---|---|---|
| U.S. Treasury Notes | 0.37% | 0.79% | 0.37% |
| U.S. Treasury Notes | 0.37% | 0.63% | 0.37% |
| U.S. Treasury Notes | 0.37% | 0.73% | 0.37% |
| U.S. Treasury Notes | 0.36% | 0.76% | 0.36% |
| U.S. Treasury Notes | 0.36% | 0.77% | 0.36% |
| U.S. Treasury Notes | 0.36% | 0.69% | 0.36% |
| U.S. Treasury Notes | 0.35% | 0.56% | 0.35% |
| U.S. Treasury Notes | 0.34% | 0.53% | 0.34% |
| U.S. Treasury Notes | 0.34% | 0.76% | 0.34% |
| U.S. Treasury Notes | 0.33% | 0.56% | 0.33% |
| U.S. Treasury Notes | 0.33% | 0.74% | 0.33% |
| U.S. Treasury Notes | 0.33% | 0.60% | 0.33% |
| U.S. Treasury Notes | 0.32% | 0.52% | 0.32% |
| U.S. Treasury Notes | 0.31% | 0.52% | 0.31% |
| U.S. Treasury Notes | 0.30% | 0.46% | 0.30% |
| U.S. Treasury Notes | 0.31% | 0.29% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.70% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.46% | 0.29% |
| U.S. Treasury Notes | 0.29% | 0.55% | 0.29% |
| U.S. Treasury Notes | 0.28% | 0.31% | 0.28% |
| U.S. Treasury Notes | 0.28% | 0.49% | 0.28% |
| U.S. Treasury Notes | 0.31% | 0.28% | 0.28% |
| U.S. Treasury Notes | 0.27% | 0.59% | 0.27% |
| U.S. Treasury Notes | 0.27% | 0.38% | 0.27% |
Showing the top 250 of 6008 shared holdings by overlap weight.
Frequently Asked Questions
How much do IUSB and GVI overlap?
IUSB and GVI overlap by 46.1% of portfolio weight. They share 6008 holdings (IUSB holds 17783 positions and GVI holds 6177), based on each fund's latest SEC-reported holdings.
Is it redundant to own both IUSB and GVI?
The two portfolios are 46.1% 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 IUSB 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 8% of the total overlap.
What does IUSB own that GVI doesn't?
11775 positions (52.0% of IUSB) are unique to IUSB, led by Uniform Mortgage-Backed Securities, U.S. Treasury Notes and U.S. Treasury Notes. In the other direction, 169 positions (1.7% of GVI) are unique to GVI.