REXC vs. COPJ

Last updated Jun 25, 2026

REXC (Sprott Rare Earths Ex-China ETF) and COPJ (Sprott Junior Copper Miners ETF) are both exchange-traded funds - REXC is a Rare Earth & Strategic Metals fund tracking the Nasdaq Sprott Rare Earths Ex-China Index, while COPJ is a Copper fund tracking the Nasdaq Sprott Junior Copper Miners Index. Both are passively managed. A 0.69 correlation means they provide meaningful diversification when combined. REXC charges 0.65%/yr vs 0.78%/yr for COPJ.

Performance

REXC vs. COPJ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sprott Rare Earths Ex-China ETF (REXC) and Sprott Junior Copper Miners ETF (COPJ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

REXC

• 1D: -2.30%
• 1M: -8.60%
• YTD: —
• 6M: —
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

COPJ

• 1D: -3.55%
• 1M: -9.41%
• YTD: -3.26%
• 6M: -2.56%
• 1Y: 83.00%
• 3Y*: 37.28%
• 5Y*: —
• 10Y*: —

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

REXC vs. COPJ - Yearly Performance Comparison

	2026 (YTD)
REXC Sprott Rare Earths Ex-China ETF	-1.58%
COPJ Sprott Junior Copper Miners ETF	-13.14%

Correlation

The correlation between REXC and COPJ is 0.69, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Apr 15, 2026	0.69

Return for Risk

REXC vs. COPJ — Risk / Return Rank

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

REXC

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

COPJ

COPJ Risk / Return Rank: 54
COPJ Sharpe Ratio Rank: 62
COPJ Sortino Ratio Rank: 51
COPJ Omega Ratio Rank: 55
COPJ Calmar Ratio Rank: 58
COPJ Martin Ratio Rank: 46

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.

REXC vs. COPJ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sprott Rare Earths Ex-China ETF (REXC) and Sprott Junior Copper Miners ETF (COPJ). 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.

	REXC	COPJ	Difference
Sharpe ratio: Return per unit of total volatility	—	1.85	—
Sortino ratio: Return per unit of downside risk	—	2.25	—
Omega ratio: Gain probability vs. loss probability	—	1.31	—
Calmar ratio: Return relative to maximum drawdown	—	2.59	—
Martin ratio: Return relative to average drawdown	—	6.98	—

Drawdowns

REXC vs. COPJ - Drawdown Comparison

The maximum REXC drawdown since its inception was -21.22%, smaller than the maximum COPJ drawdown of -32.28%. Use the drawdown chart below to compare losses from any high point for REXC and COPJ.

Drawdown Indicators

	REXC	COPJ	Difference
Max Drawdown Largest peak-to-trough decline	-21.22%	-32.28%	+11.06%
Max Drawdown (1Y) Largest decline over 1 year	—	-32.28%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-32.28%	—
Current Drawdown Current decline from peak	-15.78%	-26.05%	+10.27%
Average Drawdown Average peak-to-trough decline	-7.36%	-12.02%	+4.66%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	11.94%	—

Volatility

Volatility by Period

	REXC	COPJ	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	19.88%	—
Volatility (6M) Calculated over the trailing 6-month period	—	38.93%	—
Volatility (1Y) Calculated over the trailing 1-year period	53.49%	45.03%	+8.46%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	53.49%	35.71%	+17.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	53.49%	35.71%	+17.78%

REXC vs. COPJ - Expense Ratio Comparison

REXC has a 0.65% expense ratio, which is lower than COPJ's 0.78% expense ratio.

Dividends

REXC vs. COPJ - Dividend Comparison

REXC has not paid dividends to shareholders, while COPJ's dividend yield for the trailing twelve months is around 11.96%.

Position	TTM	2025	2024	2023
COPJ Sprott Junior Copper Miners ETF	11.96%	11.57%	11.64%	2.48%
REXC Sprott Rare Earths Ex-China ETF	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both REXC and COPJ in my portfolio?

REXC and COPJ have a correlation of 0.69, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, REXC or COPJ?

On fees, REXC is cheaper at 0.65% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, REXC or COPJ?

REXC is cheaper with a 0.65% expense ratio, compared with 0.78% for COPJ.

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

COPJ has the higher dividend yield at 11.96%, compared with 0.00% for REXC.

What is the main difference between REXC and COPJ?

REXC is categorized as Rare Earth & Strategic Metals, while COPJ is Copper. REXC tracks Nasdaq Sprott Rare Earths Ex-China Index, while COPJ tracks Nasdaq Sprott Junior Copper Miners Index. Their fees differ too: 0.65% for REXC and 0.78% for COPJ.