CGHM vs. OILK

Last updated Jun 25, 2026

CGHM (Capital Group Municipal High-Income ETF) and OILK (ProShares K-1 Free Crude Oil Strategy ETF) are both exchange-traded funds - CGHM is a High Yield Muni fund actively managed by Capital Group, while OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index. CGHM is actively managed, while OILK is passively managed. Over the past year, CGHM returned 9.19% vs 28.18% for OILK. At a correlation of -0.22, they often move in opposite directions. CGHM charges 0.34%/yr vs 0.68%/yr for OILK.

Performance

CGHM vs. OILK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Capital Group Municipal High-Income ETF (CGHM) and ProShares K-1 Free Crude Oil Strategy ETF (OILK). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CGHM achieves a 3.24% return, which is significantly lower than OILK's 35.89% return.

CGHM

• 1D: 0.15%
• 1M: 2.02%
• YTD: 3.24%
• 6M: 3.45%
• 1Y: 9.19%
• 3Y*: —
• 5Y*: —
• 10Y*: —

OILK

• 1D: -3.47%
• 1M: -16.39%
• YTD: 35.89%
• 6M: 33.85%
• 1Y: 28.18%
• 3Y*: 12.58%
• 5Y*: 12.04%
• 10Y*: —

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

CGHM vs. OILK - Yearly Performance Comparison

	2026 (YTD)	2025	2024
CGHM Capital Group Municipal High-Income ETF	3.24%	4.56%	2.75%
OILK ProShares K-1 Free Crude Oil Strategy ETF	35.89%	-11.86%	-6.18%

Correlation

The correlation between CGHM and OILK is -0.30, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.30
Correlation (All Time) Calculated using the full available price history since Jun 27, 2024	-0.22

Return for Risk

CGHM vs. OILK — Risk / Return Rank

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

CGHM

CGHM Risk / Return Rank: 89
CGHM Sharpe Ratio Rank: 93
CGHM Sortino Ratio Rank: 94
CGHM Omega Ratio Rank: 95
CGHM Calmar Ratio Rank: 79
CGHM Martin Ratio Rank: 81

OILK

OILK Risk / Return Rank: 29
OILK Sharpe Ratio Rank: 30
OILK Sortino Ratio Rank: 29
OILK Omega Ratio Rank: 28
OILK Calmar Ratio Rank: 30
OILK Martin Ratio Rank: 28

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.

CGHM vs. OILK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Capital Group Municipal High-Income ETF (CGHM) and ProShares K-1 Free Crude Oil Strategy ETF (OILK). 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.

	CGHM	OILK	Difference
Sharpe ratio: Return per unit of total volatility	2.98	1.00	+1.98
Sortino ratio: Return per unit of downside risk	4.38	1.47	+2.91
Omega ratio: Gain probability vs. loss probability	1.68	1.18	+0.50
Calmar ratio: Return relative to maximum drawdown	3.62	1.40	+2.23
Martin ratio: Return relative to average drawdown	14.05	3.56	+10.49

CGHM vs. OILK - Sharpe Ratio Comparison

The current CGHM Sharpe Ratio is 2.98, which is higher than the OILK Sharpe Ratio of 1.00. The chart below compares the historical Sharpe Ratios of CGHM and OILK, 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

CGHM vs. OILK - Drawdown Comparison

The maximum CGHM drawdown since its inception was -5.90%, smaller than the maximum OILK drawdown of -83.76%. Use the drawdown chart below to compare losses from any high point for CGHM and OILK.

Drawdown Indicators

	CGHM	OILK	Difference
Max Drawdown Largest peak-to-trough decline	-5.90%	-83.76%	+77.86%
Max Drawdown (1Y) Largest decline over 1 year	-2.55%	-20.28%	+17.73%
Max Drawdown (3Y) Largest decline over 3 years	—	-23.42%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-34.69%	—
Current Drawdown Current decline from peak	0.00%	-20.28%	+20.28%
Average Drawdown Average peak-to-trough decline	-1.21%	-32.47%	+31.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.66%	7.93%	-7.27%

Volatility

CGHM vs. OILK - Volatility Comparison

The current volatility for Capital Group Municipal High-Income ETF (CGHM) is 0.74%, while ProShares K-1 Free Crude Oil Strategy ETF (OILK) has a volatility of 8.49%. This indicates that CGHM experiences smaller price fluctuations and is considered to be less risky than OILK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CGHM	OILK	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.74%	8.49%	-7.75%
Volatility (6M) Calculated over the trailing 6-month period	2.23%	24.37%	-22.14%
Volatility (1Y) Calculated over the trailing 1-year period	3.10%	28.64%	-25.54%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.47%	30.31%	-25.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.47%	35.97%	-31.50%

CGHM vs. OILK - Expense Ratio Comparison

CGHM has a 0.34% expense ratio, which is lower than OILK's 0.68% expense ratio.

Dividends

CGHM vs. OILK - Dividend Comparison

CGHM's dividend yield for the trailing twelve months is around 3.78%, less than OILK's 9.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
CGHM Capital Group Municipal High-Income ETF	3.78%	3.61%	1.78%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
OILK ProShares K-1 Free Crude Oil Strategy ETF	9.88%	4.79%	3.11%	5.80%	17.32%	68.82%	0.13%	0.94%	0.58%	6.17%

Frequently Asked Questions

Can I hold both CGHM and OILK in my portfolio?

CGHM and OILK have a correlation of -0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CGHM or OILK?

OILK has higher volatility (8.49%) compared to CGHM (0.74%). In terms of maximum drawdown, CGHM dropped -5.90% vs OILK's -83.76%.

Which ETF is better, CGHM or OILK?

On 1-year performance, OILK leads with 28.18% vs 9.19% for CGHM. On fees, CGHM is cheaper at 0.34% per year. On volatility, CGHM has been the lower-risk option at 0.74%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CGHM or OILK?

Over the 1-year period, OILK has performed better with a 28.18% return vs 9.19%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CGHM or OILK?

CGHM is cheaper with a 0.34% expense ratio, compared with 0.68% for OILK.

Which ETF pays a higher dividend yield, CGHM or OILK?

OILK has the higher dividend yield at 9.88%, compared with 3.78% for CGHM.

What is the main difference between CGHM and OILK?

CGHM is categorized as High Yield Muni, while OILK is Oil & Gas. They also come from different issuers: Capital Group and ProShares. Their fees differ too: 0.34% for CGHM and 0.68% for OILK.

Which has better risk-adjusted returns?

CGHM currently has the higher Sharpe Ratio (2.98 vs 1.00), 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.