COPX vs. EMET
COPX (Global X Copper Miners ETF) and EMET (VanEck Copper and Green Metals ETF) are both Copper funds - COPX tracks the Solactive Global Copper Miners Total Return Index while EMET tracks the MVIS Global Clean-Tech Metals Index. Both are passively managed. Over the past 3 years, COPX returned 34.51%/yr vs 20.44%/yr for EMET. Their correlation of 0.92 suggests significant overlap in exposure. COPX charges 0.65%/yr vs 0.61%/yr for EMET.
Performance
COPX vs. EMET - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with COPX having a 18.25% return and EMET slightly higher at 18.41%.
COPX
- 1D
- -0.69%
- 1M
- 1.85%
- YTD
- 18.25%
- 6M
- 19.75%
- 1Y
- 108.10%
- 3Y*
- 34.51%
- 5Y*
- 20.78%
- 10Y*
- 21.61%
EMET
- 1D
- -1.25%
- 1M
- -0.04%
- YTD
- 18.41%
- 6M
- 19.63%
- 1Y
- 101.29%
- 3Y*
- 20.44%
- 5Y*
- —
- 10Y*
- —
COPX vs. EMET - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | |
|---|---|---|---|---|---|---|
COPX Global X Copper Miners ETF | 18.25% | 93.50% | 3.57% | 8.38% | -0.76% | 5.03% |
EMET VanEck Copper and Green Metals ETF | 18.41% | 81.22% | -12.81% | -12.28% | -17.15% | 0.11% |
Correlation
The correlation between COPX and EMET is 0.93, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.93 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.93 |
Correlation (All Time) Calculated using the full available price history since Nov 11, 2021 | 0.92 |
The correlation between COPX and EMET has been stable across timeframes, ranging from 0.92 to 0.93 - a consistent structural relationship.
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Return for Risk
COPX vs. EMET — Risk / Return Rank
COPX
EMET
COPX vs. EMET - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Global X Copper Miners ETF (COPX) and VanEck Copper and Green Metals ETF (EMET). 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.
| COPX | EMET | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.22 | ||
| Sortino ratioReturn per unit of downside risk | -0.23 | ||
| Omega ratioGain probability vs. loss probability | 1.37 | 1.41 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 3.91 | 3.98 | -0.07 |
| Martin ratioReturn relative to average drawdown | 11.97 | 12.95 | -0.97 |
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Drawdowns
COPX vs. EMET - Drawdown Comparison
The maximum COPX drawdown since its inception was -83.16%, which is greater than EMET's maximum drawdown of -53.05%. Use the drawdown chart below to compare losses from any high point for COPX and EMET.
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Drawdown Indicators
| COPX | EMET | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -83.16% | -53.05% | -30.11% |
Max Drawdown (1Y)Largest decline over 1 year | -27.82% | -25.58% | -2.24% |
Max Drawdown (3Y)Largest decline over 3 years | -39.72% | -40.50% | +0.78% |
Max Drawdown (5Y)Largest decline over 5 years | -42.12% | — | — |
Max Drawdown (10Y)Largest decline over 10 years | -65.41% | — | — |
Current DrawdownCurrent decline from peak | -11.30% | -10.25% | -1.05% |
Average DrawdownAverage peak-to-trough decline | -39.24% | -24.66% | -14.58% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 9.06% | 7.85% | +1.21% |
Volatility
COPX vs. EMET - Volatility Comparison
Global X Copper Miners ETF (COPX) has a higher volatility of 17.85% compared to VanEck Copper and Green Metals ETF (EMET) at 14.48%. This indicates that COPX's price experiences larger fluctuations and is considered to be riskier than EMET based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| COPX | EMET | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 17.85% | 14.48% | +3.37% |
Volatility (6M)Calculated over the trailing 6-month period | 38.53% | 33.06% | +5.47% |
Volatility (1Y)Calculated over the trailing 1-year period | 44.00% | 37.83% | +6.17% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 36.93% | 33.27% | +3.66% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 35.76% | 33.27% | +2.49% |
COPX vs. EMET - Expense Ratio Comparison
COPX has a 0.65% expense ratio, which is higher than EMET's 0.61% expense ratio.
Dividends
COPX vs. EMET - Dividend Comparison
COPX's dividend yield for the trailing twelve months is around 2.26%, more than EMET's 1.56% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COPX Global X Copper Miners ETF | 2.26% | 2.68% | 1.80% | 2.39% | 3.14% | 1.48% | 1.30% | 1.37% | 2.59% | 1.57% | 0.60% | 1.20% |
EMET VanEck Copper and Green Metals ETF | 1.56% | 1.84% | 1.89% | 2.02% | 2.56% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
With a correlation of 0.93, COPX and EMET move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
COPX has higher volatility (17.85%) compared to EMET (14.48%). In terms of maximum drawdown, COPX dropped -83.16% vs EMET's -53.05%.
On 3-year performance, COPX leads with 34.51% vs 20.44% for EMET. On fees, EMET is cheaper at 0.61% per year. On volatility, EMET has been the lower-risk option at 14.48%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 3-year period, COPX has performed better with a 34.51% return vs 20.44%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
EMET is cheaper with a 0.61% expense ratio, compared with 0.65% for COPX.
COPX has the higher dividend yield at 2.26%, compared with 1.56% for EMET.
COPX tracks Solactive Global Copper Miners Total Return Index, while EMET tracks MVIS Global Clean-Tech Metals Index. They also come from different issuers: Global X and VanEck. Their fees differ too: 0.65% for COPX and 0.61% for EMET.
EMET currently has the higher Sharpe Ratio (2.70 vs 2.48), 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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