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BIL vs GSY: Differences, Returns & Fees

BIL's duration was 0.2 years on Jun 30, 2026 and GSY's 0.8 on Jul 31, 2026; BIL charges 0.14% to GSY's 0.22%. Net assets on Oct 20, 2026: $51.1bn for SPDR Bloomberg 1-3 Month T-Bill ETF and $4.0bn for Invesco Ultra Short Duration ETF.

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Answers cite the figures on this page.

BIL costs 0.08 points a year less; both returned +3.7% over a year; BIL is 12.8 times larger.

BIL vs GSY: Differences, Returns & Fees
BILGSY
Expense ratio0.14%0.22%
Net assets$51.1bn$4.0bn
Total return, 1 year+3.7%+3.7%
What it tracks1-3 month T-billsNo index, actively managed
Holdings in commonreport dates differ

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

+3.7%
BIL total return, 1 year
+3.7%
GSY total return, 1 year
0.14%
BIL expense ratio
0.22%
GSY expense ratio

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Client brief · page 1 of 2Report BR-90791CC62D

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

  1. What each follows. BIL follows 1-3 month T-bills and GSY follows No index, actively managed.
  2. Number of holdings. BIL holds 18 positions and GSY holds 414.
  3. Size. BIL has $51.1bn in net assets and GSY $4.0bn (Net assets); BIL is 12.8 times larger.

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

BIL
SPDR Bloomberg 1-3 Month T-Bill ETF
GSY
Invesco Ultra Short Duration ETF
Where it sits Bond ETF Bond ETF
Issuer State Street Invesco
What it is Tracks an index of 1-3 month T-bills Actively managed
Total return, 1 year +3.7% +3.7%
Its benchmark over the same days not measured +3.7% (SPTU)
Gap to its benchmark not measured 0.0 pts vs SPTU
Expense ratio 0.14% 0.22%
Holdings 18 414
Net assets $51.1bn $4.0bn

BIL and GSY on the fields both publish, as of Oct 20, 2026. Source: ETFIQ.

About BIL

BIL tracks an index of 1-3 month T-bills. Over the year to Oct 20, 2026 it returned +3.7% with distributions reinvested. The prospectus expense ratio is 0.14% a year.

About GSY

GSY is actively managed and tracks no index. Over the year to Oct 20, 2026 it returned +3.7% with distributions reinvested, against +3.7% for its benchmark, the ICE BofA US Treasury Bill Index. The prospectus expense ratio is 0.22% a year.

Questions people ask

Which returned more over the last year, BIL or GSY?
In the year to Oct 20, 2026, with distributions reinvested, BIL returned +3.7% and GSY +3.7%.
Which is cheaper, BIL or GSY?
BIL is cheaper, by 0.08 percentage points a year. That is about $8 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
BIL vs TBLLBIL vs FLDRBIL vs TBUXBIL vs GSSTGSY vs JPSTGSY vs SHVGSY vs PULSGSY vs USFR
BIL on its own →GSY on its own →Hold both: look the portfolio through →Rankings →BIL dividend history →BIL holdings →GSY dividend history →GSY holdings →Standards and sources →
Where these figures came from
BIL filings on SEC EDGAR ↗BIL prospectus with the expense ratio (SEC) ↗State Street website ↗GSY filings on SEC EDGAR ↗GSY prospectus with the expense ratio (SEC) ↗Invesco page for GSY ↗

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, BIL against GSY, data as of Oct 20, 2026. https://etfiq.com/compare/any/bil-vs-gsy

Open data

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