IAUM vs. COPJ

Last updated Jun 9, 2026

IAUM (iShares Gold Trust Micro) and COPJ (Sprott Junior Copper Miners ETF) are both exchange-traded funds - IAUM is a Gold fund tracking the LBMA Gold Price PM, while COPJ is a Commodity Producers Equities fund tracking the Nasdaq Sprott Junior Copper Miners Index. Both are passively managed. Over the past 3 years, IAUM returned 30.12%/yr vs 40.03%/yr for COPJ. At a 0.46 correlation, their price movements are largely independent. IAUM charges 0.09%/yr vs 0.78%/yr for COPJ.

Performance

IAUM vs. COPJ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Gold Trust Micro (IAUM) and Sprott Junior Copper Miners ETF (COPJ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, IAUM achieves a 0.28% return, which is significantly lower than COPJ's 2.88% return.

IAUM

• 1D: 0.21%
• 1M: -8.41%
• YTD: 0.28%
• 6M: 3.16%
• 1Y: 30.56%
• 3Y*: 30.12%
• 5Y*: —
• 10Y*: —

COPJ

• 1D: 0.12%
• 1M: -7.29%
• YTD: 2.88%
• 6M: 14.73%
• 1Y: 92.31%
• 3Y*: 40.03%
• 5Y*: —
• 10Y*: —

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

IAUM vs. COPJ - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
IAUM iShares Gold Trust Micro	0.28%	64.27%	27.04%	7.85%
COPJ Sprott Junior Copper Miners ETF	2.88%	140.63%	11.07%	-5.30%

Correlation

The correlation between IAUM and COPJ is 0.53, 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	0.53
Correlation (3Y) Calculated over the trailing 3-year period	0.49
Correlation (All Time) Calculated using the full available price history since Feb 3, 2023	0.46

The correlation between IAUM and COPJ has been stable across timeframes, ranging from 0.46 to 0.53 - a consistent structural relationship.

IAUM vs. COPJ - Sectors Allocation Comparison

Sectors	IAUM	COPJ
Real Estate	100.0%	-
Basic Materials	-	100.0%
Communication Services	-	-
Consumer Cyclical	-	-
Consumer Defensive	-	-
Energy	-	-
Financial Services	-	-
Healthcare	-	-
Industrials	-	-
Technology	-	3.6%
Utilities	-	-

Return for Risk

IAUM vs. COPJ — Risk / Return Rank

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

IAUM

IAUM Risk / Return Rank: 34
IAUM Sharpe Ratio Rank: 35
IAUM Sortino Ratio Rank: 31
IAUM Omega Ratio Rank: 39
IAUM Calmar Ratio Rank: 34
IAUM Martin Ratio Rank: 29

COPJ

COPJ Risk / Return Rank: 62
COPJ Sharpe Ratio Rank: 73
COPJ Sortino Ratio Rank: 57
COPJ Omega Ratio Rank: 64
COPJ Calmar Ratio Rank: 63
COPJ Martin Ratio Rank: 53

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.

IAUM vs. COPJ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Gold Trust Micro (IAUM) and Sprott Junior Copper Miners ETF (COPJ). 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.

	IAUM	COPJ	Difference
Sharpe ratio: Return per unit of total volatility	1.16	2.13	-0.97
Sortino ratio: Return per unit of downside risk	1.54	2.46	-0.91
Omega ratio: Gain probability vs. loss probability	1.23	1.35	-0.11
Calmar ratio: Return relative to maximum drawdown	1.53	2.88	-1.34
Martin ratio: Return relative to average drawdown	3.84	8.26	-4.42
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

IAUM vs. COPJ - Sharpe Ratio Comparison

The current IAUM Sharpe Ratio is 1.16, which is lower than the COPJ Sharpe Ratio of 2.13. The chart below compares the historical Sharpe Ratios of IAUM and COPJ, 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

	IAUM	COPJ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.16	2.13	-0.97
Sharpe Ratio (All Time) Calculated using the full available price history	1.11	0.95	+0.17

Drawdowns

IAUM vs. COPJ - Drawdown Comparison

The maximum IAUM drawdown since its inception was -20.87%, smaller than the maximum COPJ drawdown of -32.28%. Use the drawdown chart below to compare losses from any high point for IAUM and COPJ.

Drawdown Indicators

	IAUM	COPJ	Difference
Max Drawdown Largest peak-to-trough decline	-20.87%	-32.28%	+11.41%
Max Drawdown (1Y) Largest decline over 1 year	-20.02%	-32.28%	+12.26%
Max Drawdown (3Y) Largest decline over 3 years	-20.02%	-32.28%	+12.26%
Current Drawdown Current decline from peak	-19.85%	-21.36%	+1.51%
Average Drawdown Average peak-to-trough decline	-5.33%	-11.88%	+6.55%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.98%	11.21%	-3.23%

Volatility

IAUM vs. COPJ - Volatility Comparison

The current volatility for iShares Gold Trust Micro (IAUM) is 5.64%, while Sprott Junior Copper Miners ETF (COPJ) has a volatility of 18.39%. This indicates that IAUM experiences smaller price fluctuations and is considered to be less risky than COPJ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	IAUM	COPJ	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.64%	18.39%	-12.75%
Volatility (6M) Calculated over the trailing 6-month period	23.20%	37.05%	-13.85%
Volatility (1Y) Calculated over the trailing 1-year period	26.57%	43.71%	-17.14%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.92%	35.26%	-17.34%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	17.92%	35.26%	-17.34%

IAUM vs. COPJ - Expense Ratio Comparison

IAUM has a 0.09% expense ratio, which is lower than COPJ's 0.78% expense ratio.

Dividends

IAUM vs. COPJ - Dividend Comparison

IAUM has not paid dividends to shareholders, while COPJ's dividend yield for the trailing twelve months is around 11.25%.

Position	TTM	2025	2024	2023
COPJ Sprott Junior Copper Miners ETF	11.25%	11.57%	11.64%	2.48%
IAUM iShares Gold Trust Micro	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both IAUM and COPJ in my portfolio?

IAUM and COPJ have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, IAUM or COPJ?

COPJ has higher volatility (18.39%) compared to IAUM (5.64%). In terms of maximum drawdown, IAUM dropped -20.87% vs COPJ's -32.28%.

Which ETF is better, IAUM or COPJ?

On 3-year performance, COPJ leads with 40.03% vs 30.12% for IAUM. On fees, IAUM is cheaper at 0.09% per year. On volatility, IAUM has been the lower-risk option at 5.64%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, IAUM or COPJ?

Over the 3-year period, COPJ has performed better with a 40.03% return vs 30.12%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, IAUM or COPJ?

IAUM is cheaper with a 0.09% expense ratio, compared with 0.78% for COPJ.

Which ETF pays a higher dividend yield, IAUM or COPJ?

COPJ has the higher dividend yield at 11.25%, compared with 0.00% for IAUM.

What is the main difference between IAUM and COPJ?

IAUM is categorized as Gold, while COPJ is Commodity Producers Equities. IAUM tracks LBMA Gold Price PM, while COPJ tracks Nasdaq Sprott Junior Copper Miners Index. They also come from different issuers: iShares and Sprott. Their fees differ too: 0.09% for IAUM and 0.78% for COPJ.

Which has better risk-adjusted returns?

COPJ currently has the higher Sharpe Ratio (2.13 vs 1.16), 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.