Data as of Sep 12, 2026. Both funds on the fields they both publish, from the same sources.
AGG vs IEI: how they differ
AGG and IEI are both bond index funds, and over the year they finished level, −0.7% against −1.0%.
iShares Core U.S. Aggregate Bond ETF and iShares 3-7 Year Treasury Bond ETF.
| AGG iShares Core U.S. Aggregate Bond ETF | IEI iShares 3-7 Year Treasury Bond ETF | |
|---|---|---|
| Where it sits | Core index fund | Core index fund |
| Issuer | iShares | iShares |
| What it is | US aggregate bonds | 3-7 Year Treasury Bond |
| Total return, 1 year | −0.7% | −1.0% |
| S&P 500 over the same days | +17.5% | +17.5% |
| Gap to the S&P 500 | −18.2 pts | −18.5 pts |
| Expense ratio | 0.03% | 0.15% |
| Holdings | not filed | 83 |
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.
IEI in plain words
IEI is a bond fund tracking the 3-7 Year Treasury Bond. Over the year to Sep 11, 2026 it returned −1.0% with distributions reinvested, against +17.5% for the S&P 500 and +23.0% for the Nasdaq-100. The prospectus expense ratio is 0.15% a year. It sat 3.0% below its high of Feb 27, 2026 on Sep 11, 2026.
Questions people ask
- Which returned more over the last year, AGG or IEI?
- In the year to Sep 12, 2026, with distributions reinvested, AGG returned −0.7% and IEI returned −1.0%, so AGG returned more. One year is one year; the longer windows are in the table.
- Which is cheaper, AGG or IEI?
- AGG charges 0.03% a year and IEI charges 0.15%, so AGG 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, AGG against IEI, data as of Sep 12, 2026. https://etfiq.com/compare/any/AGG-IEI Free to use with attribution; the underlying files are at Open data.
A comparison is not a recommendation. Standards and sources