SILJ vs. COPX

Last updated Jun 4, 2026

SILJ (Amplify Junior Silver Miners ETF) and COPX (Global X Copper Miners ETF) are both exchange-traded funds - SILJ is a Silver fund tracking the Nasdaq Junior Silver Miners Index, while COPX is a Materials fund tracking the Solactive Global Copper Miners Total Return Index. Both are passively managed. Over the past 10 years, SILJ returned 10.08%/yr vs 21.95%/yr for COPX. A 0.52 correlation means they provide meaningful diversification when combined. SILJ charges 0.69%/yr vs 0.65%/yr for COPX.

Performance

SILJ vs. COPX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Amplify Junior Silver Miners ETF (SILJ) 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, SILJ achieves a 6.61% return, which is significantly lower than COPX's 25.71% return. Over the past 10 years, SILJ has underperformed COPX with an annualized return of 10.08%, while COPX has yielded a comparatively higher 21.95% annualized return.

SILJ

• 1D: -5.24%
• 1M: 2.57%
• YTD: 6.61%
• 6M: 16.40%
• 1Y: 111.95%
• 3Y*: 47.77%
• 5Y*: 13.13%
• 10Y*: 10.08%

COPX

• 1D: -3.64%
• 1M: 17.74%
• YTD: 25.71%
• 6M: 36.90%
• 1Y: 120.82%
• 3Y*: 37.36%
• 5Y*: 19.87%
• 10Y*: 21.95%

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

SILJ vs. COPX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
SILJ Amplify Junior Silver Miners ETF	6.61%	183.89%	6.39%	-5.21%	-15.42%	-23.21%	33.00%	57.06%	-27.95%	-5.65%
COPX Global X Copper Miners ETF	25.71%	93.50%	3.57%	8.38%	-0.76%	23.39%	51.66%	12.48%	-31.31%	38.92%

Correlation

The correlation between SILJ and COPX is 0.70, 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	0.70
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.68
Correlation (10Y) Calculated over the trailing 10-year period	0.54
Correlation (All Time) Calculated using the full available price history since Nov 30, 2012	0.52

The correlation between SILJ and COPX shifts across timeframes, from 0.52 (all time) to 0.70 (1 year), reflecting how their relationship changes across market environments.

SILJ vs. COPX - Sectors Allocation Comparison

Sectors	SILJ	COPX
Basic Materials	99.8%	96.3%
Financial Services	0.3%	-
Consumer Defensive	0.2%	-
Communication Services	0.0%	-
Consumer Cyclical	-	-
Energy	-	-
Healthcare	-	-
Industrials	-	3.7%
Real Estate	-	-
Technology	-	-
Utilities	-	-

Return for Risk

SILJ vs. COPX — Risk / Return Rank

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

SILJ

SILJ Risk / Return Rank: 54
SILJ Sharpe Ratio Rank: 59
SILJ Sortino Ratio Rank: 46
SILJ Omega Ratio Rank: 51
SILJ Calmar Ratio Rank: 64
SILJ Martin Ratio Rank: 47

COPX

COPX Risk / Return Rank: 75
COPX Sharpe Ratio Rank: 86
COPX Sortino Ratio Rank: 67
COPX Omega Ratio Rank: 67
COPX Calmar Ratio Rank: 82
COPX Martin Ratio Rank: 73

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.

SILJ vs. COPX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amplify Junior Silver Miners ETF (SILJ) 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.

	SILJ	COPX	Difference
Sharpe ratio: Return per unit of total volatility	2.05	2.93	-0.88
Sortino ratio: Return per unit of downside risk	2.35	3.17	-0.81
Omega ratio: Gain probability vs. loss probability	1.32	1.42	-0.09
Calmar ratio: Return relative to maximum drawdown	3.24	4.37	-1.13
Martin ratio: Return relative to average drawdown	7.99	14.00	-6.01
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SILJ vs. COPX - Sharpe Ratio Comparison

The current SILJ Sharpe Ratio is 2.05, which is lower than the COPX Sharpe Ratio of 2.93. The chart below compares the historical Sharpe Ratios of SILJ 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.

Sharpe Ratios by Period

	SILJ	COPX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.05	2.93	-0.88
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.30	0.55	-0.25
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.22	0.62	-0.40
Sharpe Ratio (All Time) Calculated using the full available price history	0.09	0.19	-0.10

Drawdowns

SILJ vs. COPX - Drawdown Comparison

The maximum SILJ drawdown since its inception was -79.04%, roughly equal to the maximum COPX drawdown of -83.16%. Use the drawdown chart below to compare losses from any high point for SILJ and COPX.

Drawdown Indicators

	SILJ	COPX	Difference
Max Drawdown Largest peak-to-trough decline	-79.04%	-83.16%	+4.12%
Max Drawdown (1Y) Largest decline over 1 year	-34.71%	-27.82%	-6.89%
Max Drawdown (3Y) Largest decline over 3 years	-34.71%	-39.72%	+5.01%
Max Drawdown (5Y) Largest decline over 5 years	-55.47%	-42.12%	-13.35%
Max Drawdown (10Y) Largest decline over 10 years	-70.06%	-65.41%	-4.65%
Current Drawdown Current decline from peak	-26.80%	-5.69%	-21.11%
Average Drawdown Average peak-to-trough decline	-41.43%	-39.30%	-2.13%
Ulcer Index Depth and duration of drawdowns from previous peaks	14.06%	8.66%	+5.40%

Volatility

SILJ vs. COPX - Volatility Comparison

Amplify Junior Silver Miners ETF (SILJ) has a higher volatility of 18.69% compared to Global X Copper Miners ETF (COPX) at 15.38%. This indicates that SILJ's price experiences larger fluctuations and is considered to be riskier than COPX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SILJ	COPX	Difference
Volatility (1M) Calculated over the trailing 1-month period	18.69%	15.38%	+3.31%
Volatility (6M) Calculated over the trailing 6-month period	45.24%	35.68%	+9.56%
Volatility (1Y) Calculated over the trailing 1-year period	54.90%	41.41%	+13.49%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	44.35%	36.51%	+7.84%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.24%	35.55%	+10.69%

SILJ vs. COPX - Expense Ratio Comparison

SILJ has a 0.69% expense ratio, which is higher than COPX's 0.65% expense ratio.

Dividends

SILJ vs. COPX - Dividend Comparison

SILJ's dividend yield for the trailing twelve months is around 1.88%, less than COPX's 2.13% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPX Global X Copper Miners ETF	2.13%	2.68%	1.80%	2.39%	3.14%	1.48%	1.30%	1.37%	2.59%	1.57%	0.60%	1.20%
SILJ Amplify Junior Silver Miners ETF	1.88%	2.00%	7.26%	0.01%	0.05%	0.36%	1.23%	1.45%	1.66%	0.00%	0.52%	2.46%

Frequently Asked Questions

Can I hold both SILJ and COPX in my portfolio?

SILJ and COPX have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SILJ or COPX?

SILJ has higher volatility (18.69%) compared to COPX (15.38%). In terms of maximum drawdown, SILJ dropped -79.04% vs COPX's -83.16%.

Which ETF is better, SILJ or COPX?

On 10-year performance, COPX leads with 21.95% vs 10.08% for SILJ. On fees, COPX is cheaper at 0.65% per year. On volatility, COPX has been the lower-risk option at 15.38%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SILJ or COPX?

Over the 10-year period, COPX has performed better with a 21.95% return vs 10.08%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SILJ or COPX?

COPX is cheaper with a 0.65% expense ratio, compared with 0.69% for SILJ.

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

COPX has the higher dividend yield at 2.13%, compared with 1.88% for SILJ.

What is the main difference between SILJ and COPX?

SILJ is categorized as Silver, while COPX is Materials. SILJ tracks Nasdaq Junior Silver Miners Index, while COPX tracks Solactive Global Copper Miners Total Return Index. They also come from different issuers: Amplify and Global X. Their fees differ too: 0.69% for SILJ and 0.65% for COPX.

Which has better risk-adjusted returns?

COPX currently has the higher Sharpe Ratio (2.93 vs 2.05), 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.