Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
AGG vs BIL: how they differ
AGG is a bond index fund and BIL a short-term Treasury fund, and over the year BIL returned more, +3.7% against −0.7%.
iShares Core U.S. Aggregate Bond ETF and SPDR Bloomberg 1-3 Month T-Bill ETF.
| AGG iShares Core U.S. Aggregate Bond ETF | BIL SPDR Bloomberg 1-3 Month T-Bill ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | State Street |
| What it is | US aggregate bonds | 1-3 month T-bills |
| Total return, 1 year | −0.7% | +3.7% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −18.2 pts | −13.8 pts |
| Expense ratio | 0.03% | 0.14% |
AGG in plain words
AGG is a bond fund tracking the US aggregate bonds. Over the year to Sep 11, 2026 it returned −0.7% 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.
BIL in plain words
BIL is a cash and treasury bills tracking the 1-3 month T-bills. Over the year to Sep 11, 2026 it returned +3.7% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.14% a year.
Questions people ask
- Which returned more over the last year, AGG or BIL?
- In the year to Sep 12, 2026, with distributions reinvested, AGG returned −0.7% and BIL returned +3.7%, so BIL returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, AGG or BIL?
- AGG charges 0.03% a year and BIL charges 0.14%, so AGG is cheaper. Fees come from each fund's prospectus.
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Where these figures came from
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Cite this page. ETFIQ, AGG against BIL, data as of Sep 12, 2026. https://etfiq.com/compare/any/AGG-BIL Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources