COPJ vs. RIO
COPJ (Sprott Junior Copper Miners ETF) is Copper fund tracking the Nasdaq Sprott Junior Copper Miners Index, while RIO (Rio Tinto Group) is a stock. Over the past 3 years, COPJ returned 38.95%/yr vs 21.88%/yr for RIO. A 0.65 correlation means they provide meaningful diversification when combined.
Performance
COPJ vs. RIO - Performance Comparison
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Returns By Period
In the year-to-date period, COPJ achieves a 0.31% return, which is significantly lower than RIO's 22.77% return.
COPJ
- 1D
- -5.08%
- 1M
- -6.08%
- YTD
- 0.31%
- 6M
- 1.57%
- 1Y
- 91.12%
- 3Y*
- 38.95%
- 5Y*
- —
- 10Y*
- —
RIO
- 1D
- -3.80%
- 1M
- -8.30%
- YTD
- 22.77%
- 6M
- 21.34%
- 1Y
- 76.27%
- 3Y*
- 21.88%
- 5Y*
- 10.27%
- 10Y*
- 20.73%
COPJ vs. RIO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | |
|---|---|---|---|---|
COPJ Sprott Junior Copper Miners ETF | 0.31% | 140.63% | 11.07% | -6.47% |
RIO Rio Tinto Group | 22.77% | 44.47% | -15.36% | -0.02% |
Correlation
The correlation between COPJ and RIO 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 (1Y) Calculated over the trailing 1-year period | 0.69 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.63 |
Correlation (All Time) Calculated using the full available price history since Feb 2, 2023 | 0.65 |
The correlation between COPJ and RIO has been stable across timeframes, ranging from 0.63 to 0.69 - a consistent structural relationship.
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Return for Risk
COPJ vs. RIO — Risk / Return Rank
COPJ
RIO
COPJ vs. RIO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Sprott Junior Copper Miners ETF (COPJ) and Rio Tinto Group (RIO). 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.
| COPJ | RIO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.54 | ||
| Sortino ratioReturn per unit of downside risk | -0.71 | ||
| Omega ratioGain probability vs. loss probability | 1.33 | 1.40 | -0.07 |
| Calmar ratioReturn relative to maximum drawdown | 2.84 | 5.05 | -2.21 |
| Martin ratioReturn relative to average drawdown | 7.73 | 17.65 | -9.92 |
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Drawdowns
COPJ vs. RIO - Drawdown Comparison
The maximum COPJ drawdown since its inception was -32.28%, smaller than the maximum RIO drawdown of -88.97%. Use the drawdown chart below to compare losses from any high point for COPJ and RIO.
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Drawdown Indicators
| COPJ | RIO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -32.28% | -88.97% | +56.69% |
Max Drawdown (1Y)Largest decline over 1 year | -32.28% | -15.19% | -17.09% |
Max Drawdown (3Y)Largest decline over 3 years | -32.28% | -24.19% | -8.09% |
Max Drawdown (5Y)Largest decline over 5 years | — | -35.25% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -37.47% | — |
Current DrawdownCurrent decline from peak | -23.33% | -14.69% | -8.64% |
Average DrawdownAverage peak-to-trough decline | -12.01% | -23.75% | +11.74% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 11.82% | 4.34% | +7.48% |
Volatility
COPJ vs. RIO - Volatility Comparison
Sprott Junior Copper Miners ETF (COPJ) has a higher volatility of 19.61% compared to Rio Tinto Group (RIO) at 10.89%. This indicates that COPJ's price experiences larger fluctuations and is considered to be riskier than RIO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| COPJ | RIO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 19.61% | 10.89% | +8.72% |
Volatility (6M)Calculated over the trailing 6-month period | 38.85% | 24.91% | +13.94% |
Volatility (1Y)Calculated over the trailing 1-year period | 45.16% | 29.70% | +15.46% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 35.68% | 29.37% | +6.31% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 35.68% | 30.56% | +5.12% |
Dividends
COPJ vs. RIO - Dividend Comparison
COPJ's dividend yield for the trailing twelve months is around 11.54%, more than RIO's 4.21% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COPJ Sprott Junior Copper Miners ETF | 11.54% | 11.57% | 11.64% | 2.48% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
RIO Rio Tinto Group | 4.21% | 4.66% | 7.40% | 5.40% | 10.48% | 10.23% | 5.13% | 7.68% | 6.32% | 4.47% | 3.93% | 7.58% |
Frequently Asked Questions
COPJ and RIO 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.
COPJ has higher volatility (19.61%) compared to RIO (10.89%). In terms of maximum drawdown, COPJ dropped -32.28% vs RIO's -88.97%.
RIO currently has the higher Sharpe Ratio (2.59 vs 2.04), 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.
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