Data as of Oct 28, 2026.

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BIL vs IUSB: Differences, Returns & Fees

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BIL's duration was 0.2 years on Jun 30, 2026 and IUSB's 5.5 on Jul 31, 2026; IUSB charges 0.06% to BIL's 0.14%.

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Net assets on Oct 27, 2026: $48.7bn for SPDR Bloomberg 1-3 Month T-Bill ETF and $49.8bn for iShares Core Universal USD Bond ETF.

At a glance
+3.7%
BIL total return, 1 year
−1.2%
IUSB total return, 1 year
0.14%
BIL expense ratio
0.06%
IUSB expense ratio

Pair scorecard

IUSB costs 0.08 points a year less; their one-year returns differ by 4.9 points.

BIL vs IUSB: Differences, Returns & Fees
MeasureBILIUSB
Return
Total return, 1 year+3.7%−1.2%
Benchmark
What it tracksBloomberg 1-3 Month U.S. Treasury Bill IndexBloomberg U.S. Universal Index
Cost and size
Expense ratio0.14%0.06%
Net assets, as of Oct 27, 2026$48.7bn$49.8bn
Holdings
Holdings in common0%

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

What they share

0%

By the books each fund has filed, BIL and IUSB hold 0% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Jul 31, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first BIL IUSB
Only in one fund ↓
Only in BIL
U.S. Treasury Bills, due Aug 6, 2026 12.04%
U.S. Treasury Bills, due Sep 3, 2026 9.04%
U.S. Treasury Bills, due Aug 27, 2026 7.22%
U.S. Treasury Bills, due Sep 17, 2026 7.03%
U.S. Treasury Bills, due Sep 10, 2026 6.98%
U.S. Treasury Bills, due Sep 24, 2026 6.97%
U.S. Treasury Bills, due Aug 13, 2026 6.85%
U.S. Treasury Bills, due Aug 20, 2026 6.49%
Only in IUSB
Uniform Mortgage-Backed Securities, due Aug 25, 2056 0.41%
U.S. Treasury Notes, due Dec 31, 2029 0.37%
U.S. Treasury Notes, due May 15, 2036 0.37%
U.S. Treasury Notes, due Feb 15, 2034 0.36%
U.S. Treasury Notes, due Feb 15, 2035 0.35%
U.S. Treasury Notes, due Aug 15, 2035 0.34%
U.S. Treasury Notes, due May 15, 2034 0.34%
U.S. Treasury Notes, due Nov 15, 2034 0.34%
Check overlap with more funds →

Side by side

BIL SPDR Bloomberg 1-3 Month T-Bill ETF IUSB iShares Core Universal USD Bond ETF
Where it sits Bond ETF Bond ETF
What it is Tracks an index of 1-3 month T-bills Tracks an index of Universal USD Bond
Total return, 1 year +3.7% −1.2%
Expense ratio 0.14% 0.06%
Holdings 26 18338
Net assets, as of Oct 27, 2026 $48.7bn $49.8bn

BIL and IUSB on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
BIL

BIL tracks an index of 1-3 month T-bills. Over the year to Oct 28, 2026 it returned +3.7% with distributions reinvested. The prospectus expense ratio is 0.14% a year.

IUSB

IUSB tracks an index of Universal USD Bond. Over the year to Oct 28, 2026 it returned −1.2% with distributions reinvested. The prospectus expense ratio is 0.06% a year.

Questions people ask

Which returned more over the last year, BIL or IUSB?
In the year to Oct 28, 2026, with distributions reinvested, BIL returned +3.7% and IUSB −1.2%.
Which is cheaper, BIL or IUSB?
IUSB 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.
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ETFIQ, BIL against IUSB, data as of Oct 28, 2026. https://etfiq.com/compare/any/bil-vs-iusb

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