CPER vs. WNTR

Last updated Jul 15, 2026

CPER (United States Copper Index Fund) and WNTR (YieldMax Short MSTR Option Income Strategy ETF) are both exchange-traded funds - CPER is a Copper fund tracking the SummerHaven Copper Index Total Return, while WNTR is a Derivative Income fund actively managed by YieldMax. CPER is passively managed, while WNTR is actively managed. Over the past year, CPER returned 12.43% vs 119.74% for WNTR. At a correlation of -0.22, they often move in opposite directions. CPER charges 1.06%/yr vs 1.01%/yr for WNTR.

Performance

CPER vs. WNTR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in United States Copper Index Fund (CPER) and YieldMax Short MSTR Option Income Strategy ETF (WNTR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CPER achieves a 10.24% return, which is significantly higher than WNTR's 5.96% return.

CPER

• 1D: 1.58%
• 1M: -2.55%
• 6M: 4.47%
• YTD: 10.24%
• 1Y: 12.43%
• 3Y*: 16.78%
• 5Y*: 7.89%
• 10Y*: 9.87%

WNTR

• 1D: -3.79%
• 1M: 13.60%
• 6M: 16.72%
• YTD: 5.96%
• 1Y: 119.74%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CPER vs. WNTR - Yearly Performance Comparison

	2026 (YTD)	2025
CPER United States Copper Index Fund	10.24%	6.75%
WNTR YieldMax Short MSTR Option Income Strategy ETF	5.96%	52.78%

Correlation

The correlation between CPER and WNTR is -0.22, 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	-0.22
Correlation (All Time) Calculated using the full available price history since Mar 27, 2025	-0.22

Return for Risk

CPER vs. WNTR — Risk / Return Rank

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

CPER

CPER Risk / Return Rank: 16
CPER Sharpe Ratio Rank: 16
CPER Sortino Ratio Rank: 15
CPER Omega Ratio Rank: 19
CPER Calmar Ratio Rank: 17
CPER Martin Ratio Rank: 15

WNTR

WNTR Risk / Return Rank: 70
WNTR Sharpe Ratio Rank: 87
WNTR Sortino Ratio Rank: 67
WNTR Omega Ratio Rank: 72
WNTR Calmar Ratio Rank: 71
WNTR Martin Ratio Rank: 53

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.

CPER vs. WNTR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for United States Copper Index Fund (CPER) and YieldMax Short MSTR Option Income Strategy ETF (WNTR). 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.

	CPER	WNTR	Difference
Sharpe ratio: Return per unit of total volatility	0.37	2.24	-1.87
Sortino ratio: Return per unit of downside risk	0.66	2.46	-1.80
Omega ratio: Gain probability vs. loss probability	1.11	1.34	-0.23
Calmar ratio: Return relative to maximum drawdown	0.50	2.82	-2.32
Martin ratio: Return relative to average drawdown	1.03	7.24	-6.21

CPER vs. WNTR - Sharpe Ratio Comparison

The current CPER Sharpe Ratio is 0.37, which is lower than the WNTR Sharpe Ratio of 2.24. The chart below compares the historical Sharpe Ratios of CPER and WNTR, 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

CPER vs. WNTR - Drawdown Comparison

The maximum CPER drawdown since its inception was -54.04%, which is greater than WNTR's maximum drawdown of -42.65%. Use the drawdown chart below to compare losses from any high point for CPER and WNTR.

Drawdown Indicators

	CPER	WNTR	Difference
Max Drawdown Largest peak-to-trough decline	-54.04%	-42.65%	-11.39%
Max Drawdown (1Y) Largest decline over 1 year	-24.77%	-42.65%	+17.88%
Max Drawdown (3Y) Largest decline over 3 years	-24.77%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-34.75%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-38.42%	—	—
Current Drawdown Current decline from peak	-5.07%	-13.55%	+8.48%
Average Drawdown Average peak-to-trough decline	-25.26%	-20.51%	-4.75%
Ulcer Index Depth and duration of drawdowns from previous peaks	12.11%	16.60%	-4.49%

Volatility

CPER vs. WNTR - Volatility Comparison

The current volatility for United States Copper Index Fund (CPER) is 7.22%, while YieldMax Short MSTR Option Income Strategy ETF (WNTR) has a volatility of 19.07%. This indicates that CPER experiences smaller price fluctuations and is considered to be less risky than WNTR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPER	WNTR	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.22%	19.07%	-11.85%
Volatility (6M) Calculated over the trailing 6-month period	22.03%	47.38%	-25.35%
Volatility (1Y) Calculated over the trailing 1-year period	34.07%	53.89%	-19.82%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.12%	53.60%	-26.48%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	24.08%	53.60%	-29.52%

CPER vs. WNTR - Expense Ratio Comparison

CPER has a 1.06% expense ratio, which is higher than WNTR's 1.01% expense ratio.

Dividends

CPER vs. WNTR - Dividend Comparison

CPER has not paid dividends to shareholders, while WNTR's dividend yield for the trailing twelve months is around 106.17%.

Position	TTM	2025
CPER United States Copper Index Fund	0.00%	0.00%
WNTR YieldMax Short MSTR Option Income Strategy ETF	106.17%	58.56%

Frequently Asked Questions

Can I hold both CPER and WNTR in my portfolio?

CPER and WNTR have a correlation of -0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CPER or WNTR?

WNTR has higher volatility (19.07%) compared to CPER (7.22%). In terms of maximum drawdown, CPER dropped -54.04% vs WNTR's -42.65%.

Which ETF is better, CPER or WNTR?

On 1-year performance, WNTR leads with 119.74% vs 12.43% for CPER. On fees, WNTR is cheaper at 1.01% per year. On volatility, CPER has been the lower-risk option at 7.22%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CPER or WNTR?

Over the 1-year period, WNTR has performed better with a 119.74% return vs 12.43%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CPER or WNTR?

WNTR is cheaper with a 1.01% expense ratio, compared with 1.06% for CPER.

Which ETF pays a higher dividend yield, CPER or WNTR?

WNTR has the higher dividend yield at 106.17%, compared with 0.00% for CPER.

What is the main difference between CPER and WNTR?

CPER is categorized as Copper, while WNTR is Derivative Income. They also come from different issuers: USCF and YieldMax. Their fees differ too: 1.06% for CPER and 1.01% for WNTR.

Which has better risk-adjusted returns?

WNTR currently has the higher Sharpe Ratio (2.24 vs 0.37), 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.