USMC vs. OILK

Last updated Jun 3, 2026

USMC (Principal U.S. Mega-Cap ETF) and OILK (ProShares K-1 Free Crude Oil Strategy ETF) are both exchange-traded funds - USMC is a Large Cap Growth Equities fund tracking the Nasdaq US Mega Cap Select Leaders Index, while OILK is a Oil & Gas fund tracking the Bloomberg Commodity Balanced WTI Crude Oil Index. Both are passively managed. Over the past 5 years, USMC returned 15.68%/yr vs 17.52%/yr for OILK. At a 0.16 correlation, their price movements are largely independent. USMC charges 0.12%/yr vs 0.68%/yr for OILK.

Performance

USMC vs. OILK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal U.S. Mega-Cap ETF (USMC) 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, USMC achieves a 9.11% return, which is significantly lower than OILK's 61.95% return.

USMC

• 1D: 0.11%
• 1M: 5.62%
• YTD: 9.11%
• 6M: 8.87%
• 1Y: 24.67%
• 3Y*: 22.12%
• 5Y*: 15.68%
• 10Y*: —

OILK

• 1D: 1.15%
• 1M: 0.89%
• YTD: 61.95%
• 6M: 59.31%
• 1Y: 57.89%
• 3Y*: 18.48%
• 5Y*: 17.52%
• 10Y*: —

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

USMC vs. OILK - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
USMC Principal U.S. Mega-Cap ETF	9.11%	14.99%	29.82%	31.57%	-17.17%	26.30%	16.05%	27.37%	-2.30%	5.48%
OILK ProShares K-1 Free Crude Oil Strategy ETF	61.95%	-11.86%	8.18%	-0.97%	27.57%	63.71%	-61.09%	30.48%	-20.40%	18.05%

Correlation

The correlation between USMC and OILK is -0.25, 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	-0.25
Correlation (3Y) Calculated over the trailing 3-year period	-0.04
Correlation (5Y) Calculated over the trailing 5-year period	0.08
Correlation (All Time) Calculated using the full available price history since Oct 13, 2017	0.16

The correlation between USMC and OILK shifts across timeframes, from -0.25 (1 year) to 0.16 (all time), reflecting how their relationship changes across market environments.

USMC vs. OILK - Sectors Allocation Comparison

Sectors	USMC	OILK
Technology	29.1%	-
Financial Services	19.6%	-
Communication Services	14.7%	-
Consumer Defensive	9.6%	-
Consumer Cyclical	8.4%	100.0%
Healthcare	8.1%	-
Industrials	5.6%	-
Energy	4.8%	-
Basic Materials	-	-
Real Estate	-	-
Utilities	-	-

Return for Risk

USMC vs. OILK — Risk / Return Rank

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

USMC

USMC Risk / Return Rank: 57
USMC Sharpe Ratio Rank: 62
USMC Sortino Ratio Rank: 63
USMC Omega Ratio Rank: 59
USMC Calmar Ratio Rank: 49
USMC Martin Ratio Rank: 54

OILK

OILK Risk / Return Rank: 56
OILK Sharpe Ratio Rank: 59
OILK Sortino Ratio Rank: 52
OILK Omega Ratio Rank: 54
OILK Calmar Ratio Rank: 71
OILK Martin Ratio Rank: 44

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.

USMC vs. OILK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal U.S. Mega-Cap ETF (USMC) 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.

	USMC	OILK	Difference
Sharpe ratio Return per unit of total volatility	2.10	2.03	+0.07
Sortino ratio Return per unit of downside risk	2.95	2.55	+0.40
Omega ratio Gain probability vs. loss probability	1.37	1.34	+0.03
Calmar ratio Return relative to maximum drawdown	2.45	3.61	-1.16
Martin ratio Return relative to average drawdown	9.38	7.33	+2.05
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

USMC vs. OILK - Sharpe Ratio Comparison

The current USMC Sharpe Ratio is 2.10, which is comparable to the OILK Sharpe Ratio of 2.03. The chart below compares the historical Sharpe Ratios of USMC 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

	USMC	OILK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.10	2.03	+0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.96	0.59	+0.38
Sharpe Ratio (All Time) Calculated using the full available price history	0.84	0.11	+0.73

Drawdowns

USMC vs. OILK - Drawdown Comparison

The maximum USMC drawdown since its inception was -29.97%, smaller than the maximum OILK drawdown of -83.76%. Use the drawdown chart below to compare losses from any high point for USMC and OILK.

Drawdown Indicators

	USMC	OILK	Difference
Max Drawdown Largest peak-to-trough decline	-29.97%	-83.76%	+53.79%
Max Drawdown (1Y) Largest decline over 1 year	-10.30%	-17.35%	+7.05%
Max Drawdown (3Y) Largest decline over 3 years	-19.12%	-23.42%	+4.30%
Max Drawdown (5Y) Largest decline over 5 years	-24.09%	-34.69%	+10.60%
Current Drawdown Current decline from peak	0.00%	-4.99%	+4.99%
Average Drawdown Average peak-to-trough decline	-4.41%	-32.62%	+28.21%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.69%	8.56%	-5.87%

Volatility

USMC vs. OILK - Volatility Comparison

The current volatility for Principal U.S. Mega-Cap ETF (USMC) is 2.49%, while ProShares K-1 Free Crude Oil Strategy ETF (OILK) has a volatility of 11.11%. This indicates that USMC 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

	USMC	OILK	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.49%	11.11%	-8.62%
Volatility (6M) Calculated over the trailing 6-month period	8.69%	23.24%	-14.55%
Volatility (1Y) Calculated over the trailing 1-year period	11.81%	28.86%	-17.05%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.36%	30.11%	-13.75%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.25%	35.98%	-17.73%

USMC vs. OILK - Expense Ratio Comparison

USMC has a 0.12% expense ratio, which is lower than OILK's 0.68% expense ratio.

Dividends

USMC vs. OILK - Dividend Comparison

USMC's dividend yield for the trailing twelve months is around 0.74%, less than OILK's 8.29% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
OILK ProShares K-1 Free Crude Oil Strategy ETF	8.29%	4.79%	3.11%	5.80%	17.32%	68.82%	0.13%	0.94%	0.58%	6.17%
USMC Principal U.S. Mega-Cap ETF	0.74%	0.79%	1.04%	1.35%	1.78%	1.53%	1.55%	2.01%	2.28%	0.24%

Frequently Asked Questions

Can I hold both USMC and OILK in my portfolio?

USMC and OILK have a correlation of -0.25, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, USMC or OILK?

OILK has higher volatility (11.11%) compared to USMC (2.49%). In terms of maximum drawdown, USMC dropped -29.97% vs OILK's -83.76%.

Which ETF is better, USMC or OILK?

On 5-year performance, OILK leads with 17.52% vs 15.68% for USMC. On fees, USMC is cheaper at 0.12% per year. On volatility, USMC has been the lower-risk option at 2.49%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, USMC or OILK?

Over the 5-year period, OILK has performed better with a 17.52% return vs 15.68%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, USMC or OILK?

USMC is cheaper with a 0.12% expense ratio, compared with 0.68% for OILK.

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

OILK has the higher dividend yield at 8.29%, compared with 0.74% for USMC.

What is the main difference between USMC and OILK?

USMC is categorized as Large Cap Growth Equities, while OILK is Oil & Gas. USMC tracks Nasdaq US Mega Cap Select Leaders Index, while OILK tracks Bloomberg Commodity Balanced WTI Crude Oil Index. They also come from different issuers: Principal and ProShares. Their fees differ too: 0.12% for USMC and 0.68% for OILK.

Which has better risk-adjusted returns?

USMC currently has the higher Sharpe Ratio (2.10 vs 2.03), 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.