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COPX vs. IWM
Performance
Return for Risk
Drawdowns
Volatility
Dividends

COPX vs. IWM

Last updated Jun 13, 2026

COPX (Global X Copper Miners ETF) and IWM (iShares Russell 2000 ETF) are both exchange-traded funds - COPX is a Materials fund tracking the Solactive Global Copper Miners Total Return Index, while IWM is a Small Cap Blend Equities fund tracking the Russell 2000 Index. Both are passively managed. Over the past 10 years, COPX returned 21.86%/yr vs 11.27%/yr for IWM. A 0.57 correlation means they provide meaningful diversification when combined. COPX charges 0.65%/yr vs 0.19%/yr for IWM.

Performance

COPX vs. IWM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Copper Miners ETF (COPX) and iShares Russell 2000 ETF (IWM). The values are adjusted to include any dividend payments, if applicable.

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Returns By Period

The year-to-date returns for both stocks are quite close, with COPX having a 19.75% return and IWM slightly lower at 19.22%. Over the past 10 years, COPX has outperformed IWM with an annualized return of 21.86%, while IWM has yielded a comparatively lower 11.27% annualized return.

COPX

1D
3.38%
1M
-6.46%
YTD
19.75%
6M
29.13%
1Y
103.76%
3Y*
33.96%
5Y*
19.28%
10Y*
21.86%

IWM

1D
0.87%
1M
3.64%
YTD
19.22%
6M
16.00%
1Y
39.16%
3Y*
17.23%
5Y*
6.07%
10Y*
11.27%
*Multi-year figures are annualized to reflect compound growth (CAGR)

COPX vs. IWM - Yearly Performance Comparison

2026 (YTD)202520242023202220212020201920182017
COPX
Global X Copper Miners ETF		19.75%93.50%3.57%8.38%-0.76%23.39%51.66%12.48%-31.31%38.92%
IWM
iShares Russell 2000 ETF		19.22%12.66%11.38%16.83%-20.48%14.54%20.03%25.39%-11.12%14.58%

Correlation

The correlation between COPX and IWM is 0.54, 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

0.54

Correlation (3Y)
Calculated over the trailing 3-year period

0.51

Correlation (5Y)
Calculated over the trailing 5-year period

0.54

Correlation (10Y)
Calculated over the trailing 10-year period

0.54

Correlation (All Time)
Calculated using the full available price history since Apr 20, 2010

0.57

The correlation between COPX and IWM has been stable across timeframes, ranging from 0.51 to 0.57 - a consistent structural relationship.

COPX vs. IWM - Sectors Allocation Comparison

Sectors
COPX
IWM

Basic Materials

96.3%
4.5%

Industrials

3.7%
17.2%

Communication Services

-

2.1%

Consumer Cyclical

-

7.9%

Consumer Defensive

-

2.1%

Energy

-

5.8%

Financial Services

-

15.6%

Healthcare

-

16.1%

Real Estate

-

5.6%

Technology

-

19.5%

Utilities

-

3.0%

Basic Materials

COPX
96.3%
IWM
4.5%

Industrials

COPX
3.7%
IWM
17.2%

Communication Services

COPX

-

IWM
2.1%

Consumer Cyclical

COPX

-

IWM
7.9%

Consumer Defensive

COPX

-

IWM
2.1%

Energy

COPX

-

IWM
5.8%

Financial Services

COPX

-

IWM
15.6%

Healthcare

COPX

-

IWM
16.1%

Real Estate

COPX

-

IWM
5.6%

Technology

COPX

-

IWM
19.5%

Utilities

COPX

-

IWM
3.0%

Compare stocks, funds, or ETFs

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Global X Copper Miners ETF

iShares Russell 2000 ETF

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Return for Risk

COPX vs. IWM — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.
COPX
COPX Risk / Return Rank: 7676
Overall Rank
COPX Sharpe Ratio Rank: 8585
Sharpe Ratio Rank
COPX Sortino Ratio Rank: 6969
Sortino Ratio Rank
COPX Omega Ratio Rank: 7070
Omega Ratio Rank
COPX Calmar Ratio Rank: 8181
Calmar Ratio Rank
COPX Martin Ratio Rank: 7272
Martin Ratio Rank
IWM
IWM Risk / Return Rank: 7272
Overall Rank
IWM Sharpe Ratio Rank: 7171
Sharpe Ratio Rank
IWM Sortino Ratio Rank: 7171
Sortino Ratio Rank
IWM Omega Ratio Rank: 6363
Omega Ratio Rank
IWM Calmar Ratio Rank: 7979
Calmar Ratio Rank
IWM Martin Ratio Rank: 7676
Martin Ratio Rank
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.

COPX vs. IWM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Copper Miners ETF (COPX) and iShares Russell 2000 ETF (IWM). 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.

COPXIWMDifference
Sharpe ratioReturn per unit of total volatility
2.39
1.99

+0.39

Sortino ratioReturn per unit of downside risk
2.70
2.75

-0.05

Omega ratioGain probability vs. loss probability

1.36

1.33

+0.03

Calmar ratioReturn relative to maximum drawdown

3.75

3.57

+0.18

Martin ratioReturn relative to average drawdown

11.60

12.63

-1.03

COPX vs. IWM - Sharpe Ratio Comparison

The current COPX Sharpe Ratio is 2.39, which is comparable to the IWM Sharpe Ratio of 1.99. The chart below compares the historical Sharpe Ratios of COPX and IWM, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

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Drawdowns

COPX vs. IWM - Drawdown Comparison

The maximum COPX drawdown since its inception was -83.16%, which is greater than IWM's maximum drawdown of -59.05%. Use the drawdown chart below to compare losses from any high point for COPX and IWM.

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Drawdown Indicators

COPXIWMDifference

Max Drawdown

Largest peak-to-trough decline

-83.16%

-59.05%

-24.11%

Max Drawdown (1Y)

Largest decline over 1 year

-27.82%

-11.03%

-16.79%

Max Drawdown (3Y)

Largest decline over 3 years

-39.72%

-27.50%

-12.22%

Max Drawdown (5Y)

Largest decline over 5 years

-42.12%

-31.91%

-10.21%

Max Drawdown (10Y)

Largest decline over 10 years

-65.41%

-41.13%

-24.28%

Current Drawdown

Current decline from peak

-10.17%

0.00%

-10.17%

Average Drawdown

Average peak-to-trough decline

-39.28%

-10.76%

-28.52%

Ulcer Index

Depth and duration of drawdowns from previous peaks

8.98%

3.12%

+5.86%

Volatility

COPX vs. IWM - Volatility Comparison

Global X Copper Miners ETF (COPX) has a higher volatility of 19.30% compared to iShares Russell 2000 ETF (IWM) at 7.16%. This indicates that COPX's price experiences larger fluctuations and is considered to be riskier than IWM based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

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Volatility by Period

COPXIWMDifference

Volatility (1M)

Calculated over the trailing 1-month period

19.30%

7.16%

+12.14%

Volatility (6M)

Calculated over the trailing 6-month period

38.15%

14.29%

+23.86%

Volatility (1Y)

Calculated over the trailing 1-year period

43.66%

19.73%

+23.93%

Volatility (5Y)

Calculated over the trailing 5-year period, annualized

37.00%

22.61%

+14.39%

Volatility (10Y)

Calculated over the trailing 10-year period, annualized

35.75%

23.08%

+12.67%

COPX vs. IWM - Expense Ratio Comparison

COPX has a 0.65% expense ratio, which is higher than IWM's 0.19% expense ratio.

Dividends

COPX vs. IWM - Dividend Comparison

COPX's dividend yield for the trailing twelve months is around 2.24%, more than IWM's 0.87% yield.

PositionTTM20252024202320222021202020192018201720162015
COPX
Global X Copper Miners ETF		2.24%2.68%1.80%2.39%3.14%1.48%1.30%1.37%2.59%1.57%0.60%1.20%
IWM
iShares Russell 2000 ETF		0.87%1.04%1.15%1.35%1.48%0.94%1.04%1.26%1.40%1.26%1.38%1.54%

Frequently Asked Questions

COPX and IWM have a correlation of 0.54, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

COPX has higher volatility (19.30%) compared to IWM (7.16%). In terms of maximum drawdown, COPX dropped -83.16% vs IWM's -59.05%.

On 10-year performance, COPX leads with 21.86% vs 11.27% for IWM. On fees, IWM is cheaper at 0.19% per year. On volatility, IWM has been the lower-risk option at 7.16%. The better choice depends on whether you care most about return, fees, risk, or income.

Over the 10-year period, COPX has performed better with a 21.86% return vs 11.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

IWM is cheaper with a 0.19% expense ratio, compared with 0.65% for COPX.

COPX has the higher dividend yield at 2.24%, compared with 0.87% for IWM.

COPX is categorized as Materials, while IWM is Small Cap Blend Equities. COPX tracks Solactive Global Copper Miners Total Return Index, while IWM tracks Russell 2000 Index. They also come from different issuers: Global X and iShares. Their fees differ too: 0.65% for COPX and 0.19% for IWM.

COPX currently has the higher Sharpe Ratio (2.39 vs 1.99), 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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