OIH vs. IEO

Last updated Aug 4, 2026

OIH (VanEck Oil Services ETF) and IEO (iShares U.S. Oil & Gas Exploration & Production ETF) are both Energy Equities funds - OIH tracks the MVIS US Listed Oil Services 25 Index while IEO tracks the Dow Jones U.S. Select Oil Exploration & Production Index. Both are passively managed. Over the past 10 years, OIH returned -2.24%/yr vs 10.74%/yr for IEO. Their correlation of 0.86 means they have usually moved in the same direction. OIH charges 0.35%/yr vs 0.38%/yr for IEO.

Performance

OIH vs. IEO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in VanEck Oil Services ETF (OIH) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OIH achieves a 34.19% return, which is significantly lower than IEO's 40.31% return. Over the past 10 years, OIH has underperformed IEO with an annualized return of -2.24%, while IEO has yielded a comparatively higher 10.74% annualized return.

OIH

• 1D: -0.70%
• 1M: 6.27%
• 6M: 9.53%
• YTD: 34.19%
• 1Y: 65.42%
• 3Y*: 5.59%
• 5Y*: 18.06%
• 10Y*: -2.24%
• ALL TIME*: -0.07%

IEO

• 1D: -1.56%
• 1M: 12.30%
• 6M: 30.88%
• YTD: 40.31%
• 1Y: 45.13%
• 3Y*: 12.01%
• 5Y*: 23.78%
• 10Y*: 10.74%
• ALL TIME*: 6.13%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
IEO iShares U.S. Oil & Gas Exploration & Production ETF	$8.31M	$7.48M	$8.62M
OIH VanEck Oil Services ETF	$100.78M	$109.60M	$140.77M

OIH vs. IEO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OIH VanEck Oil Services ETF	34.19%	6.81%	-10.53%	3.20%	66.17%	21.22%	-41.19%	-3.54%	-45.03%	-19.66%
IEO iShares U.S. Oil & Gas Exploration & Production ETF	40.31%	2.15%	-1.45%	3.57%	57.82%	75.57%	-32.77%	9.63%	-19.44%	0.33%

Correlation

The correlation between OIH and IEO is 0.64, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.64
Correlation (3Y) Balances recent behavior with more history.	0.76
Correlation (5Y) Shows whether the relationship held over a longer period.	0.82
Correlation (10Y) Provides a long-term view across more market conditions.	0.85
Correlation (All Time) Calculated using the full available price history since May 5, 2006	0.86

Over the past year, the correlation between OIH and IEO has dropped to 0.64 - well below their long-term average of 0.86, suggesting their price drivers have been diverging.

OIH vs. IEO - Sectors Allocation Comparison

Sectors	OIH	IEO
Energy	100.0%	99.1%
Utilities	1.9%	-
Basic Materials	-	0.9%
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	1.0%
Real Estate	-	-
Technology	-	-

Return for Risk

OIH vs. IEO — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

OIH

OIH Risk / Return Rank: 83
OIH Sharpe Ratio Rank: 89
OIH Sortino Ratio Rank: 85
OIH Omega Ratio Rank: 81
OIH Calmar Ratio Rank: 83
OIH Martin Ratio Rank: 75

IEO

IEO Risk / Return Rank: 68
IEO Sharpe Ratio Rank: 75
IEO Sortino Ratio Rank: 68
IEO Omega Ratio Rank: 65
IEO Calmar Ratio Rank: 76
IEO Martin Ratio Rank: 56

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

OIH vs. IEO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for VanEck Oil Services ETF (OIH) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.

	OIH	IEO	Difference
Sharpe ratio: Return per unit of total volatility	2.24	1.76	+0.48
Sortino ratio: Return per unit of downside risk	2.87	2.29	+0.59
Omega ratio: Gain probability vs. loss probability	1.35	1.28	+0.07
Calmar ratio: Return relative to maximum drawdown	3.16	2.78	+0.39
Martin ratio: Return relative to average drawdown	9.62	6.95	+2.67

OIH vs. IEO - Sharpe Ratio Comparison

The current OIH Sharpe Ratio is 2.24, which is comparable to the IEO Sharpe Ratio of 1.76. The chart below compares the historical Sharpe Ratios of OIH and IEO, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

OIH vs. IEO - Drawdown Comparison

The maximum OIH drawdown since its inception was -94.45%, which is greater than IEO's maximum drawdown of -79.17%. Use the drawdown chart below to compare losses from any high point for OIH and IEO.

Drawdown Indicators

	OIH	IEO	Difference
Max Drawdown Largest peak-to-trough decline	-94.45%	-79.17%	-15.28%
Max Drawdown (1Y) Largest decline over 1 year	-20.78%	-16.32%	-4.46%
Max Drawdown (3Y) Largest decline over 3 years	-43.80%	-31.46%	-12.34%
Max Drawdown (5Y) Largest decline over 5 years	-43.80%	-31.46%	-12.34%
Max Drawdown (10Y) Largest decline over 10 years	-89.62%	-75.00%	-14.62%
Current Drawdown Current decline from peak	-65.97%	-3.36%	-62.61%
Average Drawdown Average peak-to-trough decline	-48.94%	-26.13%	-22.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.82%	6.51%	+0.31%

Volatility

OIH vs. IEO - Volatility Comparison

VanEck Oil Services ETF (OIH) and iShares U.S. Oil & Gas Exploration & Production ETF (IEO) have volatilities of 7.97% and 7.79%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OIH	IEO	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.97%	7.79%	+0.18%
Volatility (6M) Calculated over the trailing 6-month period	20.96%	20.54%	+0.42%
Volatility (1Y) Calculated over the trailing 1-year period	29.39%	25.78%	+3.61%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.47%	30.26%	+6.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.31%	34.91%	+7.40%

OIH vs. IEO - Expense Ratio Comparison

OIH has a 0.35% expense ratio, which is lower than IEO's 0.38% expense ratio.

Dividends

OIH vs. IEO - Dividend Comparison

OIH's dividend yield for the trailing twelve months is around 1.27%, less than IEO's 1.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
IEO iShares U.S. Oil & Gas Exploration & Production ETF	1.88%	2.61%	2.63%	3.00%	3.77%	2.62%	3.17%	1.85%	1.67%	0.94%	0.98%	2.03%
OIH VanEck Oil Services ETF	1.27%	1.71%	2.01%	1.36%	0.95%	0.98%	1.23%	2.10%	2.13%	2.60%	1.40%	2.39%

Frequently Asked Questions

Can I hold both OIH and IEO in my portfolio?

OIH and IEO have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OIH or IEO?

OIH has higher volatility (7.97%) compared to IEO (7.79%). In terms of maximum drawdown, OIH dropped -94.45% vs IEO's -79.17%.

Which ETF is better, OIH or IEO?

On 10-year performance, IEO leads with 10.74% vs -2.24% for OIH. On fees, OIH is cheaper at 0.35% per year. On volatility, IEO has been the lower-risk option at 7.79%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OIH or IEO?

Over the 10-year period, IEO has performed better with a 10.74% return vs -2.24%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OIH or IEO?

OIH is cheaper with a 0.35% expense ratio, compared with 0.38% for IEO.

Which ETF pays a higher dividend yield, OIH or IEO?

IEO has the higher dividend yield at 1.88%, compared with 1.27% for OIH.

What is the main difference between OIH and IEO?

OIH tracks MVIS US Listed Oil Services 25 Index, while IEO tracks Dow Jones U.S. Select Oil Exploration & Production Index. They also come from different issuers: VanEck and iShares. Their fees differ too: 0.35% for OIH and 0.38% for IEO.

Which has better risk-adjusted returns?

OIH currently has the higher Sharpe Ratio (2.24 vs 1.76), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.