IEZvsOIHETF Comparison
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iShares U.S. Oil Equipment & Services ETF (IEZ) and VanEck Oil Services ETF (OIH) belong to the same industry segment: US Energy. Both ETFs have the same top 3 sector exposures: and Energy. IEZ is more expensive with a Total Expense Ratio (TER) of 0.38%, versus 0.35% for OIH. IEZ is up 45.17% year-to-date (YTD) with +$453M in YTD flows. OIH performs better with 47.94% YTD performance, and +$292M in YTD flows. Run a side-by-side ETF comparison of IEZ and OIH 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 OIH 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 OIH | -2.45%-2.37% | +9.98%+10.97% | +45.17%+47.94% | +77.74%+83.14% | +63.72%+60.31% | +94.15%+91.10% |
| Flows | IEZ OIH | +$52M-$108M | +$227M-$395M | +$453M+$292M | +$448M+$410M | +$411M-$641M | +$480M-$1.75B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IEZ OIH | +29.57%+29.62% | +29.20%+30.33% | +30.35%+31.13% | +36.37%+37.03% |
| Max drawdown | IEZ OIH | -8.59%-8.49% | -10.28%-9.49% | -40.22%-43.83% | -40.22%-43.83% |
| Max drawdown duration | IEZ OIH | 22d22d | 24d24d | 861d864d | 861d864d |
Trading data
IEZ | OIH | |
Last sale 6/10/2026 at 1:30 PM | $30.32 | $422.92 |
| Previous close 06/09/2026 | $30.24 | $420.75 |
| 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 | OIH | |
|---|---|---|
| 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 | OIH | |
|---|---|---|
| Last price | $30.32 | $422.92 |
| 1D performance | +0.26% | +0.52% |
| AuM | $657.25 M | $2.31 B |
| E/R | 0.38% | 0.35% |
Characteristics
IEZ | OIH | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | VanEck |
| Benchmark | Dow Jones U.S. Select Oil Equipment & Services Index | MVIS US Listed Oil Services 25 Index |
| N° of holdings | 26 | 22 |
| Asset class | Equities | Equities |
| Trailing 12m distribution yield | Join | Join |
| Inception date | May 1, 2006 | December 20, 2011 |
| ESG | No | No |
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Exposure
Countries
IEZ
USA
56.36%
United Kingdom
7.6%
Other
36.03%
OIH
USA
54.68%
United Kingdom
10.76%
Other
34.56%
Sectors
IEZ
Energy
92.38%
Other
7.62%
OIH
Energy
89.51%
Other
10.49%
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Diversification
IEZ
Total weight of top 15 holdings out of 15
85.95%
OIH
Total weight of top 15 holdings out of 15
86.55%
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%
OIH
SCHLUMBERGER
19.96%
BAKER HUGHES
11.99%
HALLIBURTON
6.87%
TECHNIPFMC PLC
6.45%
US88031M1099
5.04%
WEATHERFORD INTL PLC
4.49%
GB00BMXNWH07
4.31%
TRANSOCEAN
4.28%
VALARIS LTD
3.85%
LIBERTY OILFIELD SERVICES
3.77%
PATTERSON UTI
3.43%
SOLARIS OILFIELD INFRASTRUCTURE
3.43%
NOV INC
3.35%
HELMERICH AND PAYNE
2.73%
TIDEWATER
2.58%
Frequently asked questions about IEZ and OIH
How have the IEZ and OIH ETFs performed in 2026?
As of June 9, 2026, IEZ is up 45.17% year-to-date (YTD), while OIH has returned 47.94%. That puts OIH better performer ahead so far this year.
Which ETF is attracting more investor money: IEZ or OIH?
Year-to-date, the IEZ ETF saw +$453M in flows, compared to +$292M for OIH.
Which ETF is more volatile: IEZ or OIH?
Over the past year, IEZ had a volatility of 29.2%, while OIH experienced 30.33%.
Which ETF is bigger: IEZ or OIH?
As of June 9, 2026, IEZ holds $657.25 M in assets under management (AUM), while OIH manages $2.31 B.
What sectors do the IEZ and OIH ETFs invest in?
IEZ leans toward sectors like Energy. Meanwhile, OIH focuses on Energy.
What are the top holdings of the IEZ ETF and OIH ETF?
IEZ top holdings include BAKER HUGHES, SCHLUMBERGER and HALLIBURTON. OIH holds in its top three: SCHLUMBERGER, BAKER HUGHES and HALLIBURTON.
Which ETF is more diversified: IEZ or OIH?
IEZ holds 32 securities with 85.95% of its assets in the top 15. OIH has 25 securities and a top 15 weight of 86.55%.
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