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IEOvsWEEIETF Comparison

ETF 1
IEO

iShares U.S. Oil & Gas Exploration & Production ETF

This fund is part of
US Energy
+0.3%
Full IEO fund page
VS
ETF 2
WEEI

Westwood Salient Enhanced Energy Income ETF

This fund is part of
Options Strategies
-0.24%
Full WEEI fund page

iShares U.S. Oil & Gas Exploration & Production ETF (IEO) belongs to the US Energy segment. Westwood Salient Enhanced Energy Income ETF (WEEI) is part of the Options Strategies segment. Both ETFs have the same top 3 sector exposures: and Energy. IEO is less expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.85% for WEEI. IEO is up 31.42% year-to-date (YTD) with +$26M in YTD flows. WEEI performs worse with 14.42% YTD performance, and +$11M in YTD flows. Run a side-by-side ETF comparison of IEO and WEEI below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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IEO vs WEEI performance and flow charts

Performance

0510%Feb 11Feb 19Feb 26Mar 5Mar 12

Cumulative Flows

0 M2 M4 M6 M8 M10 M12 MFeb 11Feb 19Feb 26Mar 5Mar 12

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Historic performance and flows
Data as of 03/13/2026
1M3MYTD1Y3Y5Y
Perf.
IEO
WEEI
+11.14%+2.56%
+27.86%+13.57%
+31.42%+14.42%
+36.36%+25.43%
+52.25%n/a
+157.81%n/a
Flows
IEO
WEEI
+$11M+$5M
+$13M+$14M
+$26M+$11M
-$104M+$29M
-$458M-
+$5M-
Volatility and drawdown
3M1Y3Y5Y
Volatility
IEO
WEEI
+26.65%+13.15%
+30.61%+21.24%
+25.64%n/a
+30.86%n/a
Max drawdown
IEO
WEEI
-2.39%-3.47%
-21.90%-18.23%
-31.40%n/a
-31.40%n/a
Max drawdown duration
IEO
WEEI
2d20d
176d176d
683dn/a
683dn/a
Trading data

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IEO
WEEI
Last sale
3/13/2026 at 1:30 PM
$117.36
$23.85
Previous close
03/12/2026
$116.78
$23.81
Consolidated volume
03/12/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of February 27, 2026
1-year trailing difference

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WEEI
is actively managed and doesn’t replicate an index

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IEO
WEEI
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 3/13/2026 at 1:30 PM
Live
Closed
IEO
WEEI
Last price
$117.36
$23.85
1D performance
+0.50%
+0.17%
AuM$569.07 M$49.98 M
E/R0.38%0.85%
Characteristics
IEO
WEEI
Management strategyPassiveActive
ProvideriSharesWestwood
BenchmarkDow Jones U.S. Select Oil Exploration & Production Index-
N° of holdings4022
Asset classEquities-
Trailing 12m distribution yield
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Inception dateMay 1, 2006May 1, 2024
ESGNoNo
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Exposure

Countries

IEO
USA
99.97%
Other
0.03%
WEEI
USA
94.08%
Other
5.92%

Sectors

IEO
Energy
94.71%
Other
5.29%
WEEI
Energy
98.59%
Other
1.41%
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Diversification

IEO

Total weight of top 15 holdings out of 15

82.79%
WEEI

Total weight of top 15 holdings out of 15

88.01%

Top 15 holdings

Data as of January 31, 2026
IEO
CONOCOPHILLIPS
19.65%
EOG RESOURCES
9.41%
PHILLIPS 66
8.98%
MARATHON PETROLEUM
6.60%
DEVON ENERGY
4.58%
VALERO ENERGY
4.56%
DIAMONDBACK ENERGY
4.48%
EQT
4.33%
CHESAPEAKE ENERGY
4.14%
COTERRA ENERGY
4.10%
TEXAS PACIFIC LAND CORP
3.93%
US71424F1057
2.14%
OVINTIV INC
2.11%
ANTERO RESOURCES
1.99%
APA CORPORATION
1.79%
WEEI
EXXON
23.91%
CHEVRON TEXACO
16.01%
CONOCOPHILLIPS
6.19%
WILLIAMS
4.56%
SCHLUMBERGER
4.51%
VALERO ENERGY
3.94%
KINDER MORGAN
3.85%
EOG RESOURCES
3.68%
BAKER HUGHES
3.62%
PHILLIPS 66
3.60%
ONEOK
3.21%
DIAMONDBACK ENERGY
3.09%
TARGA RESOURCS
2.79%
MARATHON PETROLEUM
2.62%
EQT
2.42%
Frequently asked questions about IEO and WEEI

How have the IEO and WEEI ETFs performed in 2026?

As of March 13, 2026, IEO is up 31.42% year-to-date (YTD), while WEEI has returned 14.42%. That puts IEO better performer ahead so far this year.

Which ETF is attracting more investor money: IEO or WEEI?

Year-to-date, the IEO ETF saw +$26M in flows, compared to +$11M for WEEI.

Which ETF is more volatile: IEO or WEEI?

Over the past year, IEO had a volatility of 30.61%, while WEEI experienced 21.24%.

Which ETF is bigger: IEO or WEEI?

As of March 13, 2026, IEO holds $569.07 M in assets under management (AUM), while WEEI manages $49.98 M.

What sectors do the IEO and WEEI ETFs invest in?

IEO leans toward sectors like Energy. Meanwhile, WEEI focuses on Energy.

What are the top holdings of the IEO ETF and WEEI ETF?

IEO top holdings include CONOCOPHILLIPS, EOG RESOURCES and PHILLIPS 66. WEEI holds in its top three: EXXON, CHEVRON TEXACO and CONOCOPHILLIPS.

Which ETF is more diversified: IEO or WEEI?

IEO holds 47 securities with 82.79% of its assets in the top 15. WEEI has 22 securities and a top 15 weight of 88.01%.

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