BILS vs TBIL: Differences, Returns & Fees
BILS's duration was 0.4 years on Jun 30, 2026 and TBIL's 0.2 on May 31, 2026; BILS charges 0.14% to TBIL's 0.15%. Net assets: $3.9bn on Oct 20, 2026 for State Street SPDR Bloomberg 3-12 Month T-Bill ETF, and $7.6bn on Oct 19, 2026 for F/m US Treasury 3 Month Bill Fund.
BILS costs 0.01 points a year less; their one-year returns differ by 0.1 points; TBIL is 1.9 times larger.
| BILS | TBIL | |
|---|---|---|
| Expense ratio | 0.14% | 0.15% |
| Net assets, as of Oct 19, 2026 | $3.9bn | $7.6bn |
| Total return, 1 year | +3.6% | +3.7% |
| What it tracks | not read by ETFIQ | Bloomberg US Treasury Bellwether 3M Total Return USD Unhedged Index (I00087US) |
| Holdings in common | report dates differ | |
Holdings in common uses holdings dated May 31, 2026 and Jun 30, 2026.
BILS and TBIL are built for the same job. How do they differ in cost, holdings and results?
- What each follows. BILS follows not read by ETFIQ and TBIL follows Bloomberg US Treasury Bellwether 3M Total Return USD Unhedged Index (I00087US).
- Number of holdings. BILS holds 23 positions and TBIL holds 1.
- One-year total return (similar). Over 1 year to Oct 20, 2026 BILS returned +3.6% and TBIL +3.7% with distributions reinvested, a gap of 0.1 points.
Data as of Oct 20, 2026. The differences are picked by a fixed rule, in a fixed order; the PDF prints it. Page 2 has the returns, overlap, risks and sources.
Take this comparison to a client
The two-page PDF for this pair is coming. Save the comparison to follow its changes. Free. It needs an email sign-in, once.
Not advice. The brief uses the figures on this page, with the data date and a report id. Saved comparisons are listed on your saved page; privacy.
On the same fields
BILS and TBIL on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.
About BILS
BILS tracks an index. Over the year to Oct 20, 2026 it returned +3.6% with distributions reinvested. The prospectus expense ratio is 0.14% a year.
About TBIL
TBIL tracks an index. Over the year to Oct 20, 2026 it returned +3.7% with distributions reinvested. The prospectus expense ratio is 0.15% a year.
Questions people ask
- Which returned more over the last year, BILS or TBIL?
- In the year to Oct 20, 2026, with distributions reinvested, BILS returned +3.6% and TBIL +3.7%.
- Which is cheaper, BILS or TBIL?
- BILS is cheaper, by 0.01 percentage points a year. That is about $1 on $10,000 held for a year. Fees come from each fund's prospectus.
ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.
Cite this pageCitation, APA and Markdown
ETFIQ, BILS against TBIL, data as of Oct 20, 2026. https://etfiq.com/compare/any/bils-vs-tbil
ETFIQ. (Oct 20, 2026). BILS against TBIL. Retrieved from https://etfiq.com/compare/any/bils-vs-tbil
[BILS against TBIL (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/bils-vs-tbil)
Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.