ACIO vs. OILK

Last updated Jun 4, 2026

ACIO (Aptus Collared Income Opportunity ETF) and OILK (ProShares K-1 Free Crude Oil Strategy ETF) are both exchange-traded funds - ACIO is a Diversified Portfolio fund actively managed by Aptus Capital Advisors, while OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index. ACIO is actively managed, while OILK is passively managed. Over the past 5 years, ACIO returned 10.18%/yr vs 17.73%/yr for OILK. At a 0.15 correlation, their price movements are largely independent. ACIO charges 0.79%/yr vs 0.68%/yr for OILK.

Performance

ACIO vs. OILK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Aptus Collared Income Opportunity ETF (ACIO) 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, ACIO achieves a 7.22% return, which is significantly lower than OILK's 64.22% return.

ACIO

• 1D: -0.55%
• 1M: 3.52%
• YTD: 7.22%
• 6M: 6.40%
• 1Y: 15.88%
• 3Y*: 15.97%
• 5Y*: 10.18%
• 10Y*: —

OILK

• 1D: 1.40%
• 1M: -1.65%
• YTD: 64.22%
• 6M: 60.70%
• 1Y: 58.99%
• 3Y*: 19.03%
• 5Y*: 17.73%
• 10Y*: —

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

ACIO vs. OILK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
ACIO Aptus Collared Income Opportunity ETF	7.22%	9.03%	21.92%	15.90%	-10.31%	18.03%	9.85%	3.32%
OILK ProShares K-1 Free Crude Oil Strategy ETF	64.22%	-11.86%	8.18%	-0.97%	27.57%	63.71%	-61.09%	1.92%

Correlation

The correlation between ACIO and OILK is -0.31, 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	-0.31
Correlation (3Y) Calculated over the trailing 3-year period	-0.05
Correlation (5Y) Calculated over the trailing 5-year period	0.09
Correlation (All Time) Calculated using the full available price history since Jul 11, 2019	0.15

The correlation between ACIO and OILK shifts across timeframes, from -0.31 (1 year) to 0.15 (all time), reflecting how their relationship changes across market environments.

ACIO vs. OILK - Sectors Allocation Comparison

Sectors	ACIO	OILK
Technology	35.2%	-
Financial Services	11.9%	-
Communication Services	11.3%	-
Consumer Cyclical	10.1%	100.0%
Healthcare	8.4%	-
Industrials	8.3%	-
Consumer Defensive	5.0%	-
Energy	3.6%	-
Utilities	2.4%	-
Real Estate	2.1%	-
Basic Materials	1.7%	-

Return for Risk

ACIO vs. OILK — Risk / Return Rank

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

ACIO

ACIO Risk / Return Rank: 53
ACIO Sharpe Ratio Rank: 56
ACIO Sortino Ratio Rank: 57
ACIO Omega Ratio Rank: 56
ACIO Calmar Ratio Rank: 44
ACIO Martin Ratio Rank: 52

OILK

OILK Risk / Return Rank: 55
OILK Sharpe Ratio Rank: 60
OILK Sortino Ratio Rank: 53
OILK Omega Ratio Rank: 54
OILK Calmar Ratio Rank: 68
OILK Martin Ratio Rank: 42

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.

ACIO vs. OILK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Aptus Collared Income Opportunity ETF (ACIO) 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.

	ACIO	OILK	Difference
Sharpe ratio: Return per unit of total volatility	1.93	2.06	-0.13
Sortino ratio: Return per unit of downside risk	2.74	2.59	+0.15
Omega ratio: Gain probability vs. loss probability	1.35	1.34	+0.01
Calmar ratio: Return relative to maximum drawdown	2.21	3.42	-1.21
Martin ratio: Return relative to average drawdown	8.84	6.91	+1.93
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ACIO vs. OILK - Sharpe Ratio Comparison

The current ACIO Sharpe Ratio is 1.93, which is comparable to the OILK Sharpe Ratio of 2.06. The chart below compares the historical Sharpe Ratios of ACIO 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.

Sharpe Ratios by Period

	ACIO	OILK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.93	2.06	-0.13
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.93	0.59	+0.33
Sharpe Ratio (All Time) Calculated using the full available price history	0.90	0.12	+0.78

Drawdowns

ACIO vs. OILK - Drawdown Comparison

The maximum ACIO drawdown since its inception was -14.19%, smaller than the maximum OILK drawdown of -83.76%. Use the drawdown chart below to compare losses from any high point for ACIO and OILK.

Drawdown Indicators

	ACIO	OILK	Difference
Max Drawdown Largest peak-to-trough decline	-14.19%	-83.76%	+69.57%
Max Drawdown (1Y) Largest decline over 1 year	-7.22%	-17.35%	+10.13%
Max Drawdown (3Y) Largest decline over 3 years	-12.12%	-23.42%	+11.30%
Max Drawdown (5Y) Largest decline over 5 years	-14.00%	-34.69%	+20.69%
Current Drawdown Current decline from peak	-0.64%	-3.66%	+3.02%
Average Drawdown Average peak-to-trough decline	-3.19%	-32.61%	+29.42%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.80%	8.56%	-6.76%

Volatility

ACIO vs. OILK - Volatility Comparison

The current volatility for Aptus Collared Income Opportunity ETF (ACIO) is 2.18%, while ProShares K-1 Free Crude Oil Strategy ETF (OILK) has a volatility of 10.44%. This indicates that ACIO 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

	ACIO	OILK	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.18%	10.44%	-8.26%
Volatility (6M) Calculated over the trailing 6-month period	6.13%	23.26%	-17.13%
Volatility (1Y) Calculated over the trailing 1-year period	8.26%	28.75%	-20.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	11.05%	30.12%	-19.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.64%	35.97%	-24.33%

ACIO vs. OILK - Expense Ratio Comparison

ACIO has a 0.79% expense ratio, which is higher than OILK's 0.68% expense ratio.

Dividends

ACIO vs. OILK - Dividend Comparison

ACIO's dividend yield for the trailing twelve months is around 0.38%, less than OILK's 8.18% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
ACIO Aptus Collared Income Opportunity ETF	0.38%	0.37%	0.44%	0.72%	1.51%	0.61%	1.02%	1.32%	0.00%	0.00%
OILK ProShares K-1 Free Crude Oil Strategy ETF	8.18%	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 ACIO and OILK in my portfolio?

ACIO and OILK have a correlation of -0.31, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ACIO or OILK?

OILK has higher volatility (10.44%) compared to ACIO (2.18%). In terms of maximum drawdown, ACIO dropped -14.19% vs OILK's -83.76%.

Which ETF is better, ACIO or OILK?

On 5-year performance, OILK leads with 17.73% vs 10.18% for ACIO. On fees, OILK is cheaper at 0.68% per year. On volatility, ACIO has been the lower-risk option at 2.18%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ACIO or OILK?

Over the 5-year period, OILK has performed better with a 17.73% return vs 10.18%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ACIO or OILK?

OILK is cheaper with a 0.68% expense ratio, compared with 0.79% for ACIO.

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

OILK has the higher dividend yield at 8.18%, compared with 0.38% for ACIO.

What is the main difference between ACIO and OILK?

ACIO is categorized as Diversified Portfolio, while OILK is Oil & Gas. They also come from different issuers: Aptus Capital Advisors and ProShares. Their fees differ too: 0.79% for ACIO and 0.68% for OILK.

Which has better risk-adjusted returns?

OILK currently has the higher Sharpe Ratio (2.06 vs 1.93), 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.