Data as of Oct 28, 2026.

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IEF vs USO: Differences, Returns & Fees

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IEF is a bond index fund and USO a commodity futures fund, and over the year to Oct 28, 2026, USO returned +133.3% against −3.2%.

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Net assets: $43.5bn on Oct 27, 2026 for iShares 7-10 Year Treasury Bond ETF, and $1.9bn on Oct 28, 2026 for United States Oil Fund, LP.

At a glance
−3.2%
IEF total return, 1 year
+133.3%
USO total return, 1 year
0.15%
IEF expense ratio
0.86%
USO expense ratio

Pair scorecard

IEF costs 0.71 points a year less; their one-year returns differ by 136.5 points; IEF is far larger, $43.5bn against $1.9bn.

IEF vs USO: Differences, Returns & Fees
MeasureIEFUSO
Return
Total return, 1 year−3.2%+133.3%
Drawdown
Below its high13.1%, high on Aug 4, 202082.3%, high on Jul 14, 2008
Benchmark
What it tracksICE U.S. Treasury 7-10 Year Bond IndexOil futures
Cost and size
Expense ratio0.15%0.86%
Net assets, as of Oct 27, 2026$43.5bn$1.9bn
Holdings
Holdings in commonnot published

Method

Side by side

IEF iShares 7-10 Year Treasury Bond ETF USO United States Oil Fund, LP
Where it sits Bond ETF Commodity ETF
Issuer iShares USCF
What it is Tracks an index of 7-10 Year Treasury Bond Holds oil futures
Total return, 1 year −3.2% +133.3%
Expense ratio 0.15% 0.86%
Holdings 17 not counted
Net assets, IEF as of Oct 27, 2026 and USO as of Oct 28, 2026 $43.5bn $1.9bn

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

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About each fund
IEF

IEF tracks an index of 7-10 Year Treasury Bond. Over the year to Oct 28, 2026 it returned −3.2% with distributions reinvested. The prospectus expense ratio is 0.15% a year. It sat 13.1% below its high of Aug 4, 2020 on Oct 28, 2026.

USO

USO holds oil futures. Over the year to Oct 28, 2026 it returned +133.3% with distributions reinvested. The prospectus expense ratio is 0.86% a year. It sat 82.3% below its high of Jul 14, 2008 on Oct 28, 2026.

Questions people ask

Which returned more over the last year, IEF or USO?
In the year to Oct 28, 2026, with distributions reinvested, IEF returned −3.2% and USO +133.3%.
Which is cheaper, IEF or USO?
IEF is cheaper, by 0.71 percentage points a year. That is about $71 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
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ETFIQ, IEF against USO, data as of Oct 28, 2026. https://etfiq.com/compare/any/ief-vs-uso

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