IEZvsIEOETF Comparison
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iShares U.S. Oil Equipment & Services ETF (IEZ) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO) belong to the same industry segment: US Energy. Both ETFs have the same top 3 sector exposures: and Energy. Both IEZ and IEO have the same Total Expense Ratio (TER) of 0.38%. IEZ is up 45.17% year-to-date (YTD) with +$453M in YTD flows. IEO performs worse with 29.53% YTD performance, and +$10M in YTD flows. Run a side-by-side ETF comparison of IEZ and IEO 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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IEZ vs IEO performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 06/09/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IEZ IEO | -2.45%-1.07% | +9.98%+1.90% | +45.17%+29.53% | +77.74%+34.86% | +63.72%+46.96% | +94.15%+130.05% |
| Flows | IEZ IEO | +$52M-$6M | +$227M-$10M | +$453M+$10M | +$448M-$65M | +$411M-$231M | +$480M-$69M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IEZ IEO | +29.57%+30.52% | +29.20%+25.23% | +30.35%+25.57% | +36.37%+30.59% |
| Max drawdown | IEZ IEO | -8.59%-14.30% | -10.28%-14.30% | -40.22%-31.40% | -40.22%-31.40% |
| Max drawdown duration | IEZ IEO | 22d72d | 24d72d | 861d683d | 861d683d |
Trading data
IEZ | IEO | |
Last sale 6/10/2026 at 1:30 PM | $30.32 | $117.68 |
| Previous close 06/09/2026 | $30.24 | $115.05 |
| Consolidated volume 06/09/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of May 29, 2026
1-year trailing difference
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IEZ | IEO | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 6/10/2026 at 1:30 PM
Live
Closed
IEZ | IEO | |
|---|---|---|
| Last price | $30.32 | $117.68 |
| 1D performance | +0.26% | +2.29% |
| AuM | $657.25 M | $541.00 M |
| E/R | 0.38% | 0.38% |
Characteristics
IEZ | IEO | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | iShares |
| Benchmark | Dow Jones U.S. Select Oil Equipment & Services Index | Dow Jones U.S. Select Oil Exploration & Production Index |
| N° of holdings | 26 | 40 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 1, 2006 | May 1, 2006 |
| ESG | No | No |
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Exposure
Countries
IEZ
USA
56.36%
United Kingdom
7.6%
Other
36.03%
IEO
USA
99.92%
Other
0.08%
Sectors
IEZ
Energy
92.38%
Other
7.62%
IEO
Energy
94.44%
Other
5.56%
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Diversification
IEZ
Total weight of top 15 holdings out of 15
85.95%
IEO
Total weight of top 15 holdings out of 15
82.77%
Top 15 holdings
Data as of April 30, 2026
IEZ
BAKER HUGHES
22.86%
SCHLUMBERGER
22.84%
HALLIBURTON
4.56%
TECHNIPFMC PLC
4.54%
WEATHERFORD INTL PLC
3.77%
NOV INC
3.52%
ARCHROCK
3.24%
TRANSOCEAN
3.22%
VALARIS LTD
3.13%
GB00BMXNWH07
3.06%
US50012A1088
2.69%
LIBERTY OILFIELD SERVICES
2.61%
PATTERSON UTI
2.01%
TIDEWATER
1.96%
HELMERICH AND PAYNE
1.92%
IEO
CONOCOPHILLIPS
18.85%
VALERO ENERGY
9.42%
EOG RESOURCES
9.33%
PHILLIPS 66
7.29%
DIAMONDBACK ENERGY
5.08%
DEVON ENERGY
4.64%
MARATHON PETROLEUM
4.58%
COTERRA ENERGY
3.97%
EQT
3.94%
CHESAPEAKE ENERGY
3.54%
TEXAS PACIFIC LAND CORP
3.54%
OVINTIV INC
2.49%
US71424F1057
2.33%
APA CORPORATION
2.10%
ANTERO RESOURCES
1.68%
Frequently asked questions about IEZ and IEO
How have the IEZ and IEO ETFs performed in 2026?
As of June 9, 2026, IEZ is up 45.17% year-to-date (YTD), while IEO has returned 29.53%. That puts IEZ better performer ahead so far this year.
Which ETF is attracting more investor money: IEZ or IEO?
Year-to-date, the IEZ ETF saw +$453M in flows, compared to +$10M for IEO.
Which ETF is more volatile: IEZ or IEO?
Over the past year, IEZ had a volatility of 29.2%, while IEO experienced 25.23%.
Which ETF is bigger: IEZ or IEO?
As of June 9, 2026, IEZ holds $657.25 M in assets under management (AUM), while IEO manages $541.00 M.
What sectors do the IEZ and IEO ETFs invest in?
IEZ leans toward sectors like Energy. Meanwhile, IEO focuses on Energy.
What are the top holdings of the IEZ ETF and IEO ETF?
IEZ top holdings include BAKER HUGHES, SCHLUMBERGER and HALLIBURTON. IEO holds in its top three: CONOCOPHILLIPS, VALERO ENERGY and EOG RESOURCES.
Which ETF is more diversified: IEZ or IEO?
IEZ holds 32 securities with 85.95% of its assets in the top 15. IEO has 47 securities and a top 15 weight of 82.77%.
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Latest news about IEZ & IEO
Crude and Natural Gas Markets on the Move
August 12, 2024
IEO
Energy Sector Plummets on Fed Comments and Crude Oil Stocks
May 27, 2024
IEZ
War in the Middle East: ETF Movers & Shakers
May 15, 2024
IEO
Oil Prices Fall After a Surprise Jump in U.S. Crude Stockpiles
January 16, 2024
IEZ
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