Which returned more over the last year, BIL or IBIT?

In the year to Sep 21, 2026, with distributions reinvested, BIL returned +3.7% and IBIT returned −31.1%, so BIL returned more.

Which is cheaper, BIL or IBIT?

BIL charges 0.14% a year and IBIT charges 0.25%, so BIL is cheaper. Fees come from each fund's prospectus.

Data as of Sep 21, 2026.

ETFIQetfiq.com · independent ETF data

BIL vs IBIT: how they differ

BIL and IBIT hold 0% of their weight in the same names, and BIL returned more over the year.

SPDR Bloomberg 1-3 Month T-Bill ETF and iShares Bitcoin Trust ETF.

What they hold in common

By the books each fund has filed, BIL and IBIT hold 0% of their money in the same securities at the same weight.

Only in each
Only in BIL	Only in IBIT
TREASURY BILL 10/26 0.00000 10.31%	BITCOIN 100.00%
TREASURY BILL 10/26 0.00000 10.11%	USD CASH 0.00%
TREASURY BILL 11/26 0.00000 8.49%
TREASURY BILL 10/26 0.00000 7.01%
TREASURY BILL 10/26 0.00000 6.71%
TREASURY BILL 11/26 0.00000 6.38%
TREASURY BILL 11/26 0.00000 6.38%
TREASURY BILL 11/26 0.00000 6.37%

Weight overlap is an ETFIQ calculation: for every security both funds hold, the smaller of the two weights, summed. Above 50%, holding both is close to holding one of them twice. Holdings dated Sep 18, 2026.

BIL and IBIT on the fields both publish, as of Sep 21, 2026. Source: ETFIQ.
	BIL SPDR Bloomberg 1-3 Month T-Bill ETF	IBIT iShares Bitcoin Trust ETF
Where it sits	Core fund	Core fund
Issuer	State Street	iShares
What it is	Tracks an index of 1-3 month T-bills	Holds bitcoin
Total return, 1 year	+3.7%	−31.1%
S&P 500 over the same days	+16.6%	+16.6%
Gap to the S&P 500	−12.9 pts	−47.6 pts
Expense ratio	0.14%	0.25%
Holdings	19	2
Net assets	$48.1bn	$63.7bn

BIL in plain words

BIL tracks an index of 1-3 month T-bills. Over the year to Sep 18, 2026 it returned +3.7% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.14% a year.

IBIT in plain words

IBIT holds bitcoin. Over the year to Sep 18, 2026 it returned −31.1% with distributions reinvested, against +16.6% for the S&P 500 and +21.8% for the Nasdaq-100. The prospectus expense ratio is 0.25% a year. It sat 35.5% below its high of Oct 6, 2025 on Sep 18, 2026.

Questions people ask

Which returned more over the last year, BIL or IBIT?: In the year to Sep 21, 2026, with distributions reinvested, BIL returned +3.7% and IBIT returned −31.1%, so BIL returned more.
Which is cheaper, BIL or IBIT?: BIL charges 0.14% a year and IBIT charges 0.25%, so BIL is cheaper. Fees come from each fund's prospectus.

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Where these figures came from

ETFIQ links to the documents behind every figure. It is not affiliated with any issuer, and a link is not an endorsement.

BIL against IBIT, ETFIQ, data as of Sep 21, 2026. Every figure is calculated from a named public source; the method is at etfiq.com/methodology. A comparison is not a recommendation.

Cite this page. ETFIQ, BIL against IBIT, data as of Sep 21, 2026. https://etfiq.com/compare/any/bil-vs-ibit Free to use with attribution; the underlying files are at Open data.

A comparison is not a recommendation. Standards and sources