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BIL vs IBTG: Differences, Returns & Fees

BIL's duration was 0.2 years on Jun 30, 2026 and IBTG's 0.2 on Jul 31, 2026; IBTG charges 0.07% to BIL's 0.14%. Net assets on Oct 20, 2026: $51.1bn for SPDR Bloomberg 1-3 Month T-Bill ETF and $1.9bn for iShares iBonds Dec 2026 Term Treasury ETF.

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Answers cite the figures on this page.

IBTG costs 0.07 points a year less; their one-year returns differ by 0.1 points; BIL is far larger, $51.1bn against $1.9bn.

BIL vs IBTG: Differences, Returns & Fees
BILIBTG
Expense ratio0.14%0.07%
Net assets$51.1bn$1.9bn
Total return, 1 year+3.7%+3.6%
What it tracks1-3 month T-billsICE 2026 Maturity US Treasury Index
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
+3.6%
IBTG total return, 1 year
0.14%
BIL expense ratio
0.07%
IBTG expense ratio

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Client brief · page 1 of 2Report BR-F8FB25F3EC

BIL and IBTG 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 IBTG follows ICE 2026 Maturity US Treasury Index.
  2. Size. BIL has $51.1bn in net assets and IBTG $1.9bn (Net assets); BIL is 26.9 times larger.
  3. One-year total return (similar). Over 1 year to Oct 20, 2026 BIL returned +3.7% and IBTG +3.6% 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.

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On the same fields

BIL
SPDR Bloomberg 1-3 Month T-Bill ETF
IBTG
iShares iBonds Dec 2026 Term Treasury ETF
Where it sits Bond ETF Bond ETF
Issuer State Street iShares
What it is Tracks an index of 1-3 month T-bills Tracks an index
Total return, 1 year +3.7% +3.6%
Expense ratio 0.14% 0.07%
Holdings 18 10
Net assets $51.1bn $1.9bn

BIL and IBTG 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 IBTG

IBTG tracks an index. Over the year to Oct 20, 2026 it returned +3.6% with distributions reinvested. The prospectus expense ratio is 0.07% a year.

Questions people ask

Which returned more over the last year, BIL or IBTG?
In the year to Oct 20, 2026, with distributions reinvested, BIL returned +3.7% and IBTG +3.6%.
Which is cheaper, BIL or IBTG?
IBTG is cheaper, by 0.07 percentage points a year. That is about $7 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
BIL vs VRIGBIL vs XHLFBIL vs TBUXBIL vs GSSTIBTG vs JPSTIBTG vs SHVIBTG vs SGOVIBTG vs PULS
BIL on its own →IBTG on its own →Hold both: look the portfolio through →Rankings →BIL dividend history →BIL holdings →IBTG dividend history →IBTG holdings →Standards and sources →
Where these figures came from
BIL filings on SEC EDGAR ↗BIL prospectus with the expense ratio (SEC) ↗State Street website ↗IBTG filings on SEC EDGAR ↗IBTG prospectus with the expense ratio (SEC) ↗iShares page for IBTG ↗

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 IBTG, data as of Oct 20, 2026. https://etfiq.com/compare/any/bil-vs-ibtg

Open data

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