Data as of Oct 28, 2026.
AGG vs BIL: Differences, Returns & Fees
AGG's duration was 5.8 years on Aug 31, 2026 and BIL's 0.2 on Jun 30, 2026; AGG charges 0.03% to BIL's 0.14%.
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askIQ about AGG and BILNet assets on Oct 27, 2026: $139.4bn for iShares Core U.S. Aggregate Bond ETF and $48.7bn for SPDR Bloomberg 1-3 Month T-Bill ETF.
Pair scorecard
AGG costs 0.11 points a year less; their one-year returns differ by 5.1 points; AGG is 2.9 times larger.
| Measure | AGG | BIL |
|---|---|---|
| Return | ||
| Total return, 1 year | −1.4% | +3.7% |
| Drawdown | ||
| Below its high | 3.4%, high on Aug 4, 2020 | |
| Benchmark | ||
| What it tracks | Bloomberg U.S. Aggregate Bond Index | Bloomberg 1-3 Month U.S. Treasury Bill Index |
| Cost and size | ||
| Expense ratio | 0.03% | 0.14% |
| Net assets, as of Oct 27, 2026 | $139.4bn | $48.7bn |
| Holdings | ||
| Holdings in common | 0% | |
Holdings in common uses holdings dated Jun 30, 2026 and Aug 31, 2026. Method
What they share
By the books each fund has filed, AGG and BIL hold 0% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Aug 31, 2026.
half
0% in common
Only in one fund ↓
Side by side
AGG and BIL on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.
AGG
AGG tracks an index of US aggregate bonds. Over the year to Oct 28, 2026 it returned −1.4% with distributions reinvested, against −1.3% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.03% a year. It sat 3.4% below its high of Aug 4, 2020 on Oct 28, 2026.
BIL
BIL tracks an index of 1-3 month T-bills. Over the year to Oct 28, 2026 it returned +3.7% with distributions reinvested. 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 Oct 28, 2026, with distributions reinvested, AGG returned −1.4% and BIL +3.7%.
- Which is cheaper, AGG or BIL?
- AGG is cheaper, by 0.11 percentage points a year. That is about $11 on $10,000 held for a year. Fees come from each fund's prospectus.
Links are sources, not endorsements. A comparison is not a recommendation.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
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ETFIQ, AGG against BIL, data as of Oct 28, 2026. https://etfiq.com/compare/any/agg-vs-bil
ETFIQ. (Oct 28, 2026). AGG against BIL. Retrieved from https://etfiq.com/compare/any/agg-vs-bil
[AGG against BIL (ETFIQ, Oct 28, 2026)](https://etfiq.com/compare/any/agg-vs-bil)
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