Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
IUSB vs VGLT: how they differ
IUSB and VGLT are both bond index funds, and over the year IUSB returned more, −0.3% against −5.4%.
iShares Core Universal USD Bond ETF and Vanguard Long-Term Treasury Index Fund.
| IUSB iShares Core Universal USD Bond ETF | VGLT Vanguard Long-Term Treasury Index Fund | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | Vanguard |
| What it is | Core Universal USD Bond | Long-term Treasury |
| Total return, 1 year | −0.3% | −5.4% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −17.8 pts | −22.9 pts |
| Expense ratio | 0.06% | not published |
| Holdings | 17819 | not filed |
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.
VGLT in plain words
VGLT is a bond fund tracking the Long-term Treasury. Over the year to Sep 11, 2026 it returned −5.4% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. It sat 39.2% below its high of Aug 4, 2020 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, IUSB or VGLT?
- In the year to Sep 12, 2026, with distributions reinvested, IUSB returned −0.3% and VGLT returned −5.4%, so IUSB returned more. One year is one year; the longer windows are in the table.
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 VGLT, data as of Sep 12, 2026. https://etfiq.com/compare/any/IUSB-VGLT Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources