EMM vs. COPX

Last updated Aug 4, 2026

EMM (Global X Emerging Markets ex-China ETF) and COPX (Global X Copper Miners ETF) are both exchange-traded funds - EMM is a Emerging Markets Equities fund actively managed by Global X, while COPX is a Copper fund tracking the Solactive Global Copper Miners Total Return Index. EMM is actively managed, while COPX is passively managed. Over the past 3 years, EMM returned 17.56%/yr vs 28.12%/yr for COPX. Their 0.62 correlation means they have sometimes moved together and sometimes differently. EMM charges 0.75%/yr vs 0.65%/yr for COPX.

Performance

EMM vs. COPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Emerging Markets ex-China ETF (EMM) and Global X Copper Miners ETF (COPX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EMM achieves a 21.70% return, which is significantly higher than COPX's 10.92% return.

EMM

• 1D: 1.09%
• 1M: -4.48%
• 6M: 12.18%
• YTD: 21.70%
• 1Y: 40.77%
• 3Y*: 17.56%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 17.27%

COPX

• 1D: 0.63%
• 1M: 3.54%
• 6M: -6.54%
• YTD: 10.92%
• 1Y: 90.64%
• 3Y*: 28.12%
• 5Y*: 19.06%
• 10Y*: 19.03%
• ALL TIME*: 5.80%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
COPX Global X Copper Miners ETF	$198.30M	$195.15M	$298.86M
EMM Global X Emerging Markets ex-China ETF	$209.26K	$283.91K	$450.77K

EMM vs. COPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
EMM Global X Emerging Markets ex-China ETF	21.70%	30.21%	2.34%	2.99%
COPX Global X Copper Miners ETF	10.92%	93.50%	3.57%	3.44%

Correlation

The correlation between EMM and COPX is 0.64, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.64
Correlation (3Y) Balances recent behavior with more history.	0.61
Correlation (All Time) Calculated using the full available price history since May 15, 2023	0.62

The correlation between EMM and COPX has been stable across timeframes, ranging from 0.61 to 0.64 - a consistent structural relationship.

EMM vs. COPX - Sectors Allocation Comparison

Sectors	EMM	COPX
Technology	48.1%	-
Financial Services	20.9%	-
Industrials	9.9%	3.1%
Energy	4.5%	-
Consumer Defensive	4.3%	-
Basic Materials	3.8%	96.9%
Consumer Cyclical	2.6%	-
Communication Services	1.7%	-
Real Estate	1.6%	-
Healthcare	1.4%	-
Utilities	1.2%	-

Return for Risk

EMM vs. COPX — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

EMM

EMM Risk / Return Rank: 63
EMM Sharpe Ratio Rank: 63
EMM Sortino Ratio Rank: 58
EMM Omega Ratio Rank: 65
EMM Calmar Ratio Rank: 63
EMM Martin Ratio Rank: 64

COPX

COPX Risk / Return Rank: 76
COPX Sharpe Ratio Rank: 84
COPX Sortino Ratio Rank: 72
COPX Omega Ratio Rank: 72
COPX Calmar Ratio Rank: 85
COPX Martin Ratio Rank: 66

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

EMM vs. COPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Emerging Markets ex-China ETF (EMM) and Global X Copper Miners ETF (COPX). 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.

	EMM	COPX	Difference
Sharpe ratio: Return per unit of total volatility	1.54	1.99	-0.45
Sortino ratio: Return per unit of downside risk	2.09	2.37	-0.28
Omega ratio: Gain probability vs. loss probability	1.29	1.31	-0.02
Calmar ratio: Return relative to maximum drawdown	2.33	3.28	-0.95
Martin ratio: Return relative to average drawdown	8.08	8.15	-0.07

EMM vs. COPX - Sharpe Ratio Comparison

The current EMM Sharpe Ratio is 1.54, which is comparable to the COPX Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of EMM and COPX, 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

EMM vs. COPX - Drawdown Comparison

The maximum EMM drawdown since its inception was -21.99%, smaller than the maximum COPX drawdown of -83.16%. Use the drawdown chart below to compare losses from any high point for EMM and COPX.

Drawdown Indicators

	EMM	COPX	Difference
Max Drawdown Largest peak-to-trough decline	-21.99%	-83.16%	+61.17%
Max Drawdown (1Y) Largest decline over 1 year	-17.62%	-27.82%	+10.20%
Max Drawdown (3Y) Largest decline over 3 years	-21.99%	-39.72%	+17.73%
Max Drawdown (5Y) Largest decline over 5 years	—	-42.12%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-65.41%	—
Current Drawdown Current decline from peak	-11.92%	-16.79%	+4.87%
Average Drawdown Average peak-to-trough decline	-4.85%	-39.11%	+34.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.06%	11.16%	-6.10%

Volatility

EMM vs. COPX - Volatility Comparison

The current volatility for Global X Emerging Markets ex-China ETF (EMM) is 10.62%, while Global X Copper Miners ETF (COPX) has a volatility of 13.49%. This indicates that EMM experiences smaller price fluctuations and is considered to be less risky than COPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	EMM	COPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	10.62%	13.49%	-2.87%
Volatility (6M) Calculated over the trailing 6-month period	24.66%	38.34%	-13.68%
Volatility (1Y) Calculated over the trailing 1-year period	26.71%	45.85%	-19.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	20.47%	37.29%	-16.82%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	20.47%	35.89%	-15.42%

EMM vs. COPX - Expense Ratio Comparison

EMM has a 0.75% expense ratio, which is higher than COPX's 0.65% expense ratio.

Dividends

EMM vs. COPX - Dividend Comparison

EMM's dividend yield for the trailing twelve months is around 0.78%, less than COPX's 2.43% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPX Global X Copper Miners ETF	2.43%	2.68%	1.80%	2.39%	3.14%	1.48%	1.30%	1.37%	2.59%	1.57%	0.60%	1.20%
EMM Global X Emerging Markets ex-China ETF	0.78%	0.90%	0.80%	0.66%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both EMM and COPX in my portfolio?

EMM and COPX have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, EMM or COPX?

COPX has higher volatility (13.49%) compared to EMM (10.62%). In terms of maximum drawdown, EMM dropped -21.99% vs COPX's -83.16%.

Which ETF is better, EMM or COPX?

On 3-year performance, COPX leads with 28.12% vs 17.56% for EMM. On fees, COPX is cheaper at 0.65% per year. On volatility, EMM has been the lower-risk option at 10.62%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, EMM or COPX?

Over the 3-year period, COPX has performed better with a 28.12% return vs 17.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, EMM or COPX?

COPX is cheaper with a 0.65% expense ratio, compared with 0.75% for EMM.

Which ETF pays a higher dividend yield, EMM or COPX?

COPX has the higher dividend yield at 2.43%, compared with 0.78% for EMM.

What is the main difference between EMM and COPX?

EMM is categorized as Emerging Markets Equities, while COPX is Copper. Their fees differ too: 0.75% for EMM and 0.65% for COPX.

Which has better risk-adjusted returns?

COPX currently has the higher Sharpe Ratio (1.99 vs 1.54), 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.