PortfoliosLab logoPortfoliosLab logo

Documentation

Upgrade your plan
IEO vs. IEZ
Performance
Return for Risk
Dividends
Drawdowns
Volatility

IEO vs. IEZ

Last updated Apr 1, 2026

Compare and contrast key facts about iShares U.S. Oil & Gas Exploration & Production ETF (IEO) and iShares U.S. Oil Equipment & Services ETF (IEZ).

IEO and IEZ are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. IEO is a passively managed fund by iShares that tracks the performance of the Dow Jones U.S. Select Oil Exploration & Production Index. It was launched on May 5, 2006. IEZ is a passively managed fund by iShares that tracks the performance of the Dow Jones U.S. Select Oil Equipment & Services Index. It was launched on May 5, 2006. Both IEO and IEZ are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.

Performance

IEO vs. IEZ - Performance Comparison

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

Loading graphics...

IEO vs. IEZ - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
IEO
iShares U.S. Oil & Gas Exploration & Production ETF		40.59%2.15%-1.45%3.57%57.82%75.57%-32.77%9.63%-19.44%0.33%
IEZ
iShares U.S. Oil Equipment & Services ETF		39.05%7.51%-8.15%4.43%65.73%15.98%-42.98%1.82%-42.47%-18.18%

Returns By Period

The year-to-date returns for both stocks are quite close, with IEO having a 40.59% return and IEZ slightly lower at 39.05%. Over the past 10 years, IEO has outperformed IEZ with an annualized return of 12.05%, while IEZ has yielded a comparatively lower -0.06% annualized return.

IEO

1D
-1.57%
1M
15.77%
YTD
40.59%
6M
36.46%
1Y
35.31%
3Y*
16.25%
5Y*
23.38%
10Y*
12.05%

IEZ

1D
0.63%
1M
0.17%
YTD
39.05%
6M
51.03%
1Y
51.15%
3Y*
16.17%
5Y*
17.40%
10Y*
-0.06%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.

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

iShares U.S. Oil Equipment & Services ETF

Often compared with IEO:
IEO vs. XLEIEO vs. VDEIEO vs. FCGIEO vs. FENYIEO vs. DEOIEO vs. AMNDIEO vs. PCEF
Often compared with IEZ:
IEZ vs. XESIEZ vs. XOPIEZ vs. FCGIEZ vs. IBBQIEZ vs. EZUIEZ vs. VDEIEZ vs. USO

IEO vs. IEZ - Expense Ratio Comparison

Both IEO and IEZ have an expense ratio of 0.42%.

IEO
iShares U.S. Oil & Gas Exploration & Production ETF
IEZ
iShares U.S. Oil Equipment & Services ETF

Return for Risk

IEO vs. IEZ — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
IEO
IEO Risk / Return Rank: 6565
Overall Rank
IEO Sharpe Ratio Rank: 6868
Sharpe Ratio Rank
IEO Sortino Ratio Rank: 6565
Sortino Ratio Rank
IEO Omega Ratio Rank: 6565
Omega Ratio Rank
IEO Calmar Ratio Rank: 6969
Calmar Ratio Rank
IEO Martin Ratio Rank: 5656
Martin Ratio Rank
IEZ
IEZ Risk / Return Rank: 7272
Overall Rank
IEZ Sharpe Ratio Rank: 7777
Sharpe Ratio Rank
IEZ Sortino Ratio Rank: 7676
Sortino Ratio Rank
IEZ Omega Ratio Rank: 7474
Omega Ratio Rank
IEZ Calmar Ratio Rank: 7878
Calmar Ratio Rank
IEZ Martin Ratio Rank: 5858
Martin Ratio Rank
The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

IEO vs. IEZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares U.S. Oil & Gas Exploration & Production ETF (IEO) and iShares U.S. Oil Equipment & Services ETF (IEZ). 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.

IEOIEZDifference

Sharpe ratio

Return per unit of total volatility

1.16

1.39

-0.23

Sortino ratio

Return per unit of downside risk

1.58

1.88

-0.30

Omega ratio

Gain probability vs. loss probability

1.23

1.27

-0.04

Calmar ratio

Return relative to maximum drawdown

1.70

2.04

-0.34

Martin ratio

Return relative to average drawdown

5.28

5.55

-0.27

Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IEO vs. IEZ - Sharpe Ratio Comparison

The current IEO Sharpe Ratio is 1.16, which is comparable to the IEZ Sharpe Ratio of 1.39. The chart below compares the historical Sharpe Ratios of IEO and IEZ, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Loading graphics...

Sharpe Ratios by Period

IEOIEZDifference

Sharpe Ratio (1Y)

Calculated over the trailing 1-year period

1.16

1.39

-0.23

Sharpe Ratio (5Y)

Calculated over the trailing 5-year period

0.77

0.47

+0.30

Sharpe Ratio (10Y)

Calculated over the trailing 10-year period

0.35

-0.00

+0.35

Sharpe Ratio (All Time)

Calculated using the full available price history

0.18

-0.04

+0.22

Correlation

The correlation between IEO and IEZ is 0.87, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

IEO vs. IEZ - Dividend Comparison

IEO's dividend yield for the trailing twelve months is around 1.88%, more than IEZ's 1.25% yield.

TTM20252024202320222021202020192018201720162015
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%
IEZ
iShares U.S. Oil Equipment & Services ETF		1.25%1.87%1.76%0.97%0.65%1.20%2.07%2.28%1.81%3.42%0.91%2.40%

Drawdowns

IEO vs. IEZ - Drawdown Comparison

The maximum IEO drawdown since its inception was -79.17%, smaller than the maximum IEZ drawdown of -92.52%. Use the drawdown chart below to compare losses from any high point for IEO and IEZ.

Loading graphics...

Drawdown Indicators

IEOIEZDifference

Max Drawdown

Largest peak-to-trough decline

-79.17%

-92.52%

+13.35%

Max Drawdown (1Y)

Largest decline over 1 year

-21.95%

-25.55%

+3.60%

Max Drawdown (5Y)

Largest decline over 5 years

-31.46%

-40.25%

+8.79%

Max Drawdown (10Y)

Largest decline over 10 years

-75.00%

-88.29%

+13.29%

Current Drawdown

Current decline from peak

-3.17%

-54.11%

+50.94%

Average Drawdown

Average peak-to-trough decline

-26.43%

-48.23%

+21.80%

Ulcer Index

Depth and duration of drawdowns from previous peaks

7.06%

9.37%

-2.31%

Volatility

IEO vs. IEZ - Volatility Comparison

The current volatility for iShares U.S. Oil & Gas Exploration & Production ETF (IEO) is 6.23%, while iShares U.S. Oil Equipment & Services ETF (IEZ) has a volatility of 9.57%. This indicates that IEO experiences smaller price fluctuations and is considered to be less risky than IEZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Loading graphics...

Volatility by Period

IEOIEZDifference

Volatility (1M)

Calculated over the trailing 1-month period

6.23%

9.57%

-3.34%

Volatility (6M)

Calculated over the trailing 6-month period

17.31%

21.26%

-3.95%

Volatility (1Y)

Calculated over the trailing 1-year period

30.50%

36.94%

-6.44%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

30.65%

37.04%

-6.39%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

34.93%

41.67%

-6.74%