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BILS vs TBUX: Differences, Returns & Fees

BILS's duration was 0.4 years on Jun 30, 2026 and TBUX's 0.7 on May 31, 2026; BILS charges 0.14% to TBUX's 0.17%. Net assets: $3.9bn on Oct 20, 2026 for State Street SPDR Bloomberg 3-12 Month T-Bill ETF, and $1.9bn on Oct 19, 2026 for T. Rowe Price Ultra Short-Term Bond ETF.

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Answers cite the figures on this page.

BILS costs 0.03 points a year less; their one-year returns differ by 0.3 points; BILS is 2.0 times larger.

BILS vs TBUX: Differences, Returns & Fees
BILSTBUX
Expense ratio0.14%0.17%
Net assets, as of Oct 19, 2026$3.9bn$1.9bn
Total return, 1 year+3.6%+3.9%
What it tracksnot read by ETFIQNo index, actively managed
Holdings in commonreport dates differ

Holdings in common uses holdings dated May 31, 2026 and Jun 30, 2026.

+3.6%
BILS total return, 1 year
+3.9%
TBUX total return, 1 year
0.14%
BILS expense ratio
0.17%
TBUX expense ratio

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Client brief · page 1 of 2Report BR-7642A0BFFC

BILS and TBUX are built for the same job. How do they differ in cost, holdings and results?

  1. What each follows. BILS follows not read by ETFIQ and TBUX follows No index, actively managed.
  2. Number of holdings. BILS holds 23 positions and TBUX holds 622.
  3. One-year total return (similar). Over 1 year to Oct 20, 2026 BILS returned +3.6% and TBUX +3.9% with distributions reinvested, a gap of 0.3 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.

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On the same fields

BILS
State Street SPDR Bloomberg 3-12 Month T-Bill ETF
TBUX
T. Rowe Price Ultra Short-Term Bond ETF
Where it sits Bond ETF Bond ETF
Issuer State Street T. Rowe Price
What it is Tracks an index Actively managed
Total return, 1 year +3.6% +3.9%
Its benchmark over the same days not measured −1.9% (AGG)
Gap to its benchmark not measured +5.8 pts vs AGG
Expense ratio 0.14% 0.17%
Holdings 23 622
Net assets, BILS as of Oct 20, 2026 and TBUX as of Oct 19, 2026 $3.9bn $1.9bn

BILS and TBUX 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 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, BILS or TBUX?
In the year to Oct 20, 2026, with distributions reinvested, BILS returned +3.6% and TBUX +3.9%.
Which is cheaper, BILS or TBUX?
BILS is cheaper, by 0.03 percentage points a year. That is about $3 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
BILS vs XHLFBILS vs VRIGBILS vs IBTGBILS vs GSSTGSY vs TBUXIBDS vs TBUXFLTR vs TBUXBSCR vs TBUX
BILS on its own →TBUX on its own →Hold both: look the portfolio through →Rankings →BILS dividend history →BILS holdings →TBUX dividend history →TBUX holdings →Standards and sources →
Where these figures came from
BILS filings on SEC EDGAR ↗BILS prospectus with the expense ratio (SEC) ↗State Street website ↗TBUX filings on SEC EDGAR ↗TBUX prospectus with the expense ratio (SEC) ↗T. Rowe Price website ↗

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 TBUX, data as of Oct 20, 2026. https://etfiq.com/compare/any/bils-vs-tbux

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.