Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IUSB vs VGIT: how they differ
IUSB and VGIT hold 18% of their weight in the same names, and IUSB returned more over the year.
iShares Core Universal USD Bond ETF and Vanguard Intermediate-Term Treasury Index Fund.
What they hold in common
By the books each fund has filed, IUSB and VGIT hold 18% of their money in the same securities at the same weight.
| Holding | IUSB | VGIT |
|---|---|---|
| United States of America | 0.38% | 1.92% |
| United States of America | 0.37% | 1.94% |
| United States of America | 0.37% | 1.89% |
| United States of America | 0.37% | 1.67% |
| United States of America | 0.36% | 1.89% |
| United States of America | 0.36% | 1.92% |
| United States of America | 0.36% | 1.97% |
| United States of America | 0.35% | 1.87% |
| United States of America | 0.35% | 1.11% |
| United States of America | 0.35% | 1.92% |
| United States of America | 0.34% | 1.86% |
| United States of America | 0.34% | 1.12% |
| Only in IUSB | Only in VGIT |
|---|---|
| Federal National Mortgage Association 0.32% | United States Treasury Note/Bond 0.92% |
| United States of America 0.32% | United States Treasury Note/Bond 0.79% |
| United States of America 0.32% | United States Treasury Note/Bond 0.69% |
| United States of America 0.27% | United States Treasury Note/Bond 0.62% |
| United States of America 0.26% | United States Treasury Note/Bond 0.40% |
| United States of America 0.26% | United States Treasury Note/Bond 0.10% |
| United States of America 0.25% | United States Treasury Note/Bond 0.10% |
| United States of America 0.24% | United States Treasury Note/Bond 0.08% |
Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Apr 30, 2026 and May 31, 2026.
| IUSB iShares Core Universal USD Bond ETF | VGIT Vanguard Intermediate-Term Treasury Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Core Universal USD Bond | Intermediate-Term Treasury |
| Total return, 1 year | −0.3% | −1.2% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −17.8 pts | −18.7 pts |
| Expense ratio | 0.06% | 0.03% |
| Holdings | 17819 | 103 |
IUSB in plain words
IUSB is a bond fund tracking the Core Universal USD Bond. Over the year to Sep 11, 2026 it returned −0.3% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.06% a year.
VGIT in plain words
VGIT is a bond fund tracking the Intermediate-Term Treasury. Over the year to Sep 11, 2026 it returned −1.2% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.03% a year. It sat 3.7% below its high of Aug 4, 2020 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IUSB or VGIT?
- In the year to Sep 12, 2026, with distributions reinvested, IUSB returned −0.3% and VGIT returned −1.2%, so IUSB returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, IUSB or VGIT?
- IUSB charges 0.06% a year and VGIT charges 0.03%, so VGIT is cheaper. Fees come from each fund's prospectus.
Other comparisons
Where to next
Where these figures came from
ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.
Cite this page. ETFIQ, IUSB against VGIT, data as of Sep 12, 2026. https://etfiq.com/compare/any/IUSB-VGIT Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources