TBIL vs TBUX: Differences, Returns & Fees
On May 31, 2026 TBIL's duration was 0.2 years and TBUX's 0.7; TBIL charges 0.15% to TBUX's 0.17%. Net assets on Oct 19, 2026: $7.6bn for F/m US Treasury 3 Month Bill Fund and $1.9bn for T. Rowe Price Ultra Short-Term Bond ETF.
TBIL costs 0.02 points a year less; their one-year returns differ by 0.2 points; TBIL is 3.9 times larger.
| TBIL | TBUX | |
|---|---|---|
| Expense ratio | 0.15% | 0.17% |
| Net assets, as of Oct 19, 2026 | $7.6bn | $1.9bn |
| Total return, 1 year | +3.7% | +3.9% |
| What it tracks | Bloomberg US Treasury Bellwether 3M Total Return USD Unhedged Index (I00087US) | No index, actively managed |
| Holdings in common | 0% | |
Holdings in common uses holdings dated May 31, 2026.
TBIL and TBUX are built for the same job. How do they differ in cost, holdings and results?
- What each follows. TBIL follows Bloomberg US Treasury Bellwether 3M Total Return USD Unhedged Index (I00087US) and TBUX follows No index, actively managed.
- Holdings in common. 0% of the weight is in the same securities (holdings dated May 31, 2026).
- Number of holdings. TBIL holds 1 positions and TBUX holds 622.
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.
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What they hold in common
By the books each fund has filed, TBIL and TBUX hold 0% of their money in the same securities at the same weight. Holdings dated May 31, 2026.
half
0% in common
On the same fields
TBIL and TBUX on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.
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.
About TBUX
TBUX is actively managed and tracks no index. Over the year to Oct 20, 2026 it returned +3.9% with distributions reinvested, against −1.9% for its benchmark, the Bloomberg U.S. Aggregate Bond Index. The prospectus expense ratio is 0.17% a year.
Questions people ask
- Which returned more over the last year, TBIL or TBUX?
- In the year to Oct 20, 2026, with distributions reinvested, TBIL returned +3.7% and TBUX +3.9%.
- Which is cheaper, TBIL or TBUX?
- TBIL is cheaper, by 0.02 percentage points a year. That is about $2 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.
How this is computed
Overlap adds up the smaller of the two weights for each security both funds hold.
Cite this pageCitation, APA and Markdown
ETFIQ, TBIL against TBUX, data as of Oct 20, 2026. https://etfiq.com/compare/any/tbil-vs-tbux
ETFIQ. (Oct 20, 2026). TBIL against TBUX. Retrieved from https://etfiq.com/compare/any/tbil-vs-tbux
[TBIL against TBUX (ETFIQ, Oct 20, 2026)](https://etfiq.com/compare/any/tbil-vs-tbux)
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