COPJ vs. GUNR

Last updated Jun 3, 2026

COPJ (Sprott Junior Copper Miners ETF) and GUNR (FlexShares Morningstar Global Upstream Natural Resources Index Fund) are both Commodity Producers Equities funds - COPJ tracks the Nasdaq Sprott Junior Copper Miners Index while GUNR tracks the Morningstar Global Upstream Natural Resources Index. Both are passively managed. Over the past 3 years, COPJ returned 47.64%/yr vs 14.68%/yr for GUNR. A 0.68 correlation means they provide meaningful diversification when combined. COPJ charges 0.78%/yr vs 0.46%/yr for GUNR.

Performance

COPJ vs. GUNR - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sprott Junior Copper Miners ETF (COPJ) and FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

The year-to-date returns for both stocks are quite close, with COPJ having a 20.64% return and GUNR slightly lower at 20.03%.

COPJ

• 1D: 3.38%
• 1M: 15.54%
• YTD: 20.64%
• 6M: 40.03%
• 1Y: 137.28%
• 3Y*: 47.64%
• 5Y*: —
• 10Y*: —

GUNR

• 1D: 1.13%
• 1M: 0.53%
• YTD: 20.03%
• 6M: 23.94%
• 1Y: 42.23%
• 3Y*: 14.68%
• 5Y*: 10.24%
• 10Y*: 11.24%

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

COPJ vs. GUNR - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
COPJ Sprott Junior Copper Miners ETF	20.64%	140.63%	11.07%	-5.30%
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund	20.03%	30.03%	-8.37%	-5.91%

Correlation

The correlation between COPJ and GUNR is 0.56, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.56
Correlation (3Y) Calculated over the trailing 3-year period	0.66
Correlation (All Time) Calculated using the full available price history since Feb 3, 2023	0.68

The correlation between COPJ and GUNR shifts across timeframes, from 0.56 (1 year) to 0.68 (all time), reflecting how their relationship changes across market environments.

COPJ vs. GUNR - Sectors Allocation Comparison

Sectors	COPJ	GUNR
Basic Materials	100.0%	44.3%
Technology	3.6%	0.5%
Communication Services	-	1.6%
Consumer Cyclical	-	0.2%
Consumer Defensive	-	11.4%
Energy	-	30.6%
Financial Services	-	2.6%
Healthcare	-	-
Industrials	-	2.3%
Real Estate	-	0.2%
Utilities	-	4.0%

Return for Risk

COPJ vs. GUNR — Risk / Return Rank

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

COPJ

COPJ Risk / Return Rank: 79
COPJ Sharpe Ratio Rank: 92
COPJ Sortino Ratio Rank: 74
COPJ Omega Ratio Rank: 79
COPJ Calmar Ratio Rank: 82
COPJ Martin Ratio Rank: 68

GUNR

GUNR Risk / Return Rank: 86
GUNR Sharpe Ratio Rank: 85
GUNR Sortino Ratio Rank: 78
GUNR Omega Ratio Rank: 81
GUNR Calmar Ratio Rank: 93
GUNR Martin Ratio Rank: 93

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.

COPJ vs. GUNR - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sprott Junior Copper Miners ETF (COPJ) and FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR). 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.

	COPJ	GUNR	Difference
Sharpe ratio Return per unit of total volatility	3.30	2.81	+0.49
Sortino ratio Return per unit of downside risk	3.38	3.54	-0.16
Omega ratio Gain probability vs. loss probability	1.48	1.49	-0.01
Calmar ratio Return relative to maximum drawdown	4.38	6.50	-2.13
Martin ratio Return relative to average drawdown	12.85	24.84	-11.99
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

COPJ vs. GUNR - Sharpe Ratio Comparison

The current COPJ Sharpe Ratio is 3.30, which is comparable to the GUNR Sharpe Ratio of 2.81. The chart below compares the historical Sharpe Ratios of COPJ and GUNR, 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

	COPJ	GUNR	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	3.30	2.81	+0.49
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.54	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.55	—
Sharpe Ratio (All Time) Calculated using the full available price history	1.16	0.33	+0.83

Drawdowns

COPJ vs. GUNR - Drawdown Comparison

The maximum COPJ drawdown since its inception was -32.28%, smaller than the maximum GUNR drawdown of -45.64%. Use the drawdown chart below to compare losses from any high point for COPJ and GUNR.

Drawdown Indicators

	COPJ	GUNR	Difference
Max Drawdown Largest peak-to-trough decline	-32.28%	-45.64%	+13.36%
Max Drawdown (1Y) Largest decline over 1 year	-32.28%	-6.81%	-25.47%
Max Drawdown (3Y) Largest decline over 3 years	-32.28%	-19.59%	-12.69%
Max Drawdown (5Y) Largest decline over 5 years	—	-24.06%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-43.04%	—
Current Drawdown Current decline from peak	-7.78%	-1.88%	-5.90%
Average Drawdown Average peak-to-trough decline	-11.86%	-10.41%	-1.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.00%	1.78%	+9.22%

Volatility

COPJ vs. GUNR - Volatility Comparison

Sprott Junior Copper Miners ETF (COPJ) has a higher volatility of 14.94% compared to FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR) at 4.33%. This indicates that COPJ's price experiences larger fluctuations and is considered to be riskier than GUNR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COPJ	GUNR	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.94%	4.33%	+10.61%
Volatility (6M) Calculated over the trailing 6-month period	34.86%	12.54%	+22.32%
Volatility (1Y) Calculated over the trailing 1-year period	41.90%	15.17%	+26.73%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.71%	18.98%	+15.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	34.71%	20.43%	+14.28%

COPJ vs. GUNR - Expense Ratio Comparison

COPJ has a 0.78% expense ratio, which is higher than GUNR's 0.46% expense ratio.

Dividends

COPJ vs. GUNR - Dividend Comparison

COPJ's dividend yield for the trailing twelve months is around 9.59%, more than GUNR's 2.23% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPJ Sprott Junior Copper Miners ETF	9.59%	11.57%	11.64%	2.48%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund	2.23%	2.81%	3.39%	3.55%	4.12%	3.61%	2.79%	3.25%	3.27%	2.00%	1.73%	4.50%

Frequently Asked Questions

Can I hold both COPJ and GUNR in my portfolio?

COPJ and GUNR have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COPJ or GUNR?

COPJ has higher volatility (14.94%) compared to GUNR (4.33%). In terms of maximum drawdown, COPJ dropped -32.28% vs GUNR's -45.64%.

Which ETF is better, COPJ or GUNR?

On 3-year performance, COPJ leads with 47.64% vs 14.68% for GUNR. On fees, GUNR is cheaper at 0.46% per year. On volatility, GUNR has been the lower-risk option at 4.33%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, COPJ or GUNR?

Over the 3-year period, COPJ has performed better with a 47.64% return vs 14.68%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, COPJ or GUNR?

GUNR is cheaper with a 0.46% expense ratio, compared with 0.78% for COPJ.

Which ETF pays a higher dividend yield, COPJ or GUNR?

COPJ has the higher dividend yield at 9.59%, compared with 2.23% for GUNR.

What is the main difference between COPJ and GUNR?

COPJ tracks Nasdaq Sprott Junior Copper Miners Index, while GUNR tracks Morningstar Global Upstream Natural Resources Index. They also come from different issuers: Sprott and Northern Trust. Their fees differ too: 0.78% for COPJ and 0.46% for GUNR.

Which has better risk-adjusted returns?

COPJ currently has the higher Sharpe Ratio (3.30 vs 2.81), 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.