AIWEX vs. MLOZX

Last updated Jun 23, 2026

AIWEX (Cavanal Hill World Energy Fund Institutional Class) and MLOZX (Cohen & Steers MLP & Energy Opportunity Fund, Inc.) are both Energy Equities funds. Over the past 10 years, AIWEX returned 11.61%/yr vs 10.37%/yr for MLOZX. Their correlation of 0.84 suggests significant overlap in exposure. AIWEX charges 0.91%/yr vs 0.90%/yr for MLOZX.

Performance

AIWEX vs. MLOZX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Cavanal Hill World Energy Fund Institutional Class (AIWEX) and Cohen & Steers MLP & Energy Opportunity Fund, Inc. (MLOZX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AIWEX achieves a 24.90% return, which is significantly lower than MLOZX's 32.43% return. Over the past 10 years, AIWEX has outperformed MLOZX with an annualized return of 11.61%, while MLOZX has yielded a comparatively lower 10.37% annualized return.

AIWEX

• 1D: 0.18%
• 1M: -6.12%
• YTD: 24.90%
• 6M: 24.51%
• 1Y: 31.02%
• 3Y*: 23.73%
• 5Y*: 20.44%
• 10Y*: 11.61%

MLOZX

• 1D: 0.00%
• 1M: -2.53%
• YTD: 32.43%
• 6M: 32.70%
• 1Y: 48.31%
• 3Y*: 23.88%
• 5Y*: 18.96%
• 10Y*: 10.37%

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

AIWEX vs. MLOZX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AIWEX Cavanal Hill World Energy Fund Institutional Class	24.90%	21.74%	13.42%	4.93%	32.76%	36.90%	0.25%	8.00%	-24.31%	-1.59%
MLOZX Cohen & Steers MLP & Energy Opportunity Fund, Inc.	32.43%	17.35%	12.16%	10.49%	21.10%	39.09%	-26.70%	12.62%	-13.43%	0.33%

Correlation

The correlation between AIWEX and MLOZX is 0.82, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.83
Correlation (3Y) Calculated over the trailing 3-year period	0.83
Correlation (5Y) Calculated over the trailing 5-year period	0.86
Correlation (10Y) Calculated over the trailing 10-year period	0.84
Correlation (All Time) Calculated using the full available price history since Jan 2, 2015	0.84

The correlation between AIWEX and MLOZX has been stable across timeframes, ranging from 0.82 to 0.86 - a consistent structural relationship.

Return for Risk

AIWEX vs. MLOZX — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

AIWEX

AIWEX Risk / Return Rank: 53
AIWEX Sharpe Ratio Rank: 42
AIWEX Sortino Ratio Rank: 38
AIWEX Omega Ratio Rank: 37
AIWEX Calmar Ratio Rank: 84
AIWEX Martin Ratio Rank: 66

MLOZX

MLOZX Risk / Return Rank: 95
MLOZX Sharpe Ratio Rank: 97
MLOZX Sortino Ratio Rank: 93
MLOZX Omega Ratio Rank: 89
MLOZX Calmar Ratio Rank: 99
MLOZX Martin Ratio Rank: 98

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.

AIWEX vs. MLOZX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Cavanal Hill World Energy Fund Institutional Class (AIWEX) and Cohen & Steers MLP & Energy Opportunity Fund, Inc. (MLOZX). 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.

	AIWEX	MLOZX	Difference
Sharpe ratio: Return per unit of total volatility	1.75	3.40	-1.65
Sortino ratio: Return per unit of downside risk	2.39	4.46	-2.08
Omega ratio: Gain probability vs. loss probability	1.30	1.60	-0.30
Calmar ratio: Return relative to maximum drawdown	3.70	10.56	-6.86
Martin ratio: Return relative to average drawdown	11.97	30.43	-18.46

AIWEX vs. MLOZX - Sharpe Ratio Comparison

The current AIWEX Sharpe Ratio is 1.75, which is lower than the MLOZX Sharpe Ratio of 3.40. The chart below compares the historical Sharpe Ratios of AIWEX and MLOZX, 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

AIWEX vs. MLOZX - Drawdown Comparison

The maximum AIWEX drawdown since its inception was -57.44%, smaller than the maximum MLOZX drawdown of -72.01%. Use the drawdown chart below to compare losses from any high point for AIWEX and MLOZX.

Drawdown Indicators

	AIWEX	MLOZX	Difference
Max Drawdown Largest peak-to-trough decline	-57.44%	-72.01%	+14.57%
Max Drawdown (1Y) Largest decline over 1 year	-8.58%	-4.71%	-3.87%
Max Drawdown (3Y) Largest decline over 3 years	-23.00%	-20.84%	-2.16%
Max Drawdown (5Y) Largest decline over 5 years	-25.68%	-20.84%	-4.84%
Max Drawdown (10Y) Largest decline over 10 years	-57.44%	-64.94%	+7.50%
Current Drawdown Current decline from peak	-8.41%	-3.19%	-5.22%
Average Drawdown Average peak-to-trough decline	-12.76%	-20.57%	+7.81%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.64%	1.63%	+1.01%

Volatility

AIWEX vs. MLOZX - Volatility Comparison

Cavanal Hill World Energy Fund Institutional Class (AIWEX) has a higher volatility of 5.59% compared to Cohen & Steers MLP & Energy Opportunity Fund, Inc. (MLOZX) at 4.22%. This indicates that AIWEX's price experiences larger fluctuations and is considered to be riskier than MLOZX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AIWEX	MLOZX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.59%	4.22%	+1.37%
Volatility (6M) Calculated over the trailing 6-month period	13.37%	11.46%	+1.91%
Volatility (1Y) Calculated over the trailing 1-year period	18.14%	14.62%	+3.52%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	25.84%	18.33%	+7.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	25.90%	24.09%	+1.81%

AIWEX vs. MLOZX - Expense Ratio Comparison

AIWEX has a 0.91% expense ratio, which is higher than MLOZX's 0.90% expense ratio.

Dividends

AIWEX vs. MLOZX - Dividend Comparison

AIWEX's dividend yield for the trailing twelve months is around 0.90%, less than MLOZX's 1.84% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AIWEX Cavanal Hill World Energy Fund Institutional Class	0.90%	0.81%	1.97%	1.80%	2.18%	1.63%	1.81%	2.27%	1.65%	0.67%	1.22%	1.00%
MLOZX Cohen & Steers MLP & Energy Opportunity Fund, Inc.	1.84%	1.71%	10.24%	4.61%	3.66%	3.08%	6.57%	6.21%	4.44%	3.86%	3.72%	6.05%

Frequently Asked Questions

Can I hold both AIWEX and MLOZX in my portfolio?

AIWEX and MLOZX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AIWEX or MLOZX?

AIWEX has higher volatility (5.59%) compared to MLOZX (4.22%). In terms of maximum drawdown, AIWEX dropped -57.44% vs MLOZX's -72.01%.

Which has better risk-adjusted returns?

MLOZX currently has the higher Sharpe Ratio (3.40 vs 1.75), 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.