COPJ vs. WSTCX

Last updated Jul 21, 2026

COPJ (Sprott Junior Copper Miners ETF) and WSTCX (Delaware Ivy Science and Technology Fund) are both funds - COPJ is a Copper fund tracking the Nasdaq Sprott Junior Copper Miners Index, while WSTCX is a Technology Equities fund managed by Ivy Funds. Over the past 3 years, COPJ returned 34.22%/yr vs 59.02%/yr for WSTCX. At a 0.43 correlation, their price movements are largely independent. COPJ charges 0.78%/yr vs 2.14%/yr for WSTCX.

Performance

COPJ vs. WSTCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Sprott Junior Copper Miners ETF (COPJ) and Delaware Ivy Science and Technology Fund (WSTCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COPJ achieves a -4.07% return, which is significantly lower than WSTCX's 30.43% return.

COPJ

• 1D: 0.23%
• 1M: -11.32%
• 6M: -15.71%
• YTD: -4.07%
• 1Y: 64.49%
• 3Y*: 34.22%
• 5Y*: —
• 10Y*: —
• ALL TIME*: 28.75%

WSTCX

• 1D: -1.53%
• 1M: -10.28%
• 6M: 22.30%
• YTD: 30.43%
• 1Y: 46.25%
• 3Y*: 59.02%
• 5Y*: 29.22%
• 10Y*: 26.67%
• ALL TIME*: 18.05%

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

COPJ vs. WSTCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
COPJ Sprott Junior Copper Miners ETF	-4.07%	140.63%	11.07%	-6.47%
WSTCX Delaware Ivy Science and Technology Fund	30.43%	32.86%	117.81%	22.27%

Correlation

The correlation between COPJ and WSTCX is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.43
Correlation (All Time) Calculated using the full available price history since Feb 2, 2023	0.43

The correlation between COPJ and WSTCX has been stable across timeframes, ranging from 0.43 to 0.51 - a consistent structural relationship.

Return for Risk

COPJ vs. WSTCX — Risk / Return Rank

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

COPJ

COPJ Risk / Return Rank: 50
COPJ Sharpe Ratio Rank: 56
COPJ Sortino Ratio Rank: 49
COPJ Omega Ratio Rank: 52
COPJ Calmar Ratio Rank: 53
COPJ Martin Ratio Rank: 40

WSTCX

WSTCX Risk / Return Rank: 57
WSTCX Sharpe Ratio Rank: 56
WSTCX Sortino Ratio Rank: 46
WSTCX Omega Ratio Rank: 49
WSTCX Calmar Ratio Rank: 75
WSTCX Martin Ratio Rank: 59

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.

COPJ vs. WSTCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sprott Junior Copper Miners ETF (COPJ) and Delaware Ivy Science and Technology Fund (WSTCX). 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.

	COPJ	WSTCX	Difference
Sharpe ratio: Return per unit of total volatility	1.41	1.67	-0.26
Sortino ratio: Return per unit of downside risk	1.88	2.17	-0.29
Omega ratio: Gain probability vs. loss probability	1.25	1.29	-0.04
Calmar ratio: Return relative to maximum drawdown	2.01	2.76	-0.75
Martin ratio: Return relative to average drawdown	4.80	9.30	-4.51

COPJ vs. WSTCX - Sharpe Ratio Comparison

The current COPJ Sharpe Ratio is 1.41, which is comparable to the WSTCX Sharpe Ratio of 1.67. The chart below compares the historical Sharpe Ratios of COPJ and WSTCX, 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

COPJ vs. WSTCX - Drawdown Comparison

The maximum COPJ drawdown since its inception was -32.28%, smaller than the maximum WSTCX drawdown of -60.92%. Use the drawdown chart below to compare losses from any high point for COPJ and WSTCX.

Drawdown Indicators

	COPJ	WSTCX	Difference
Max Drawdown Largest peak-to-trough decline	-32.28%	-60.92%	+28.64%
Max Drawdown (1Y) Largest decline over 1 year	-32.28%	-16.84%	-15.44%
Max Drawdown (3Y) Largest decline over 3 years	-32.28%	-44.66%	+12.38%
Max Drawdown (5Y) Largest decline over 5 years	—	-60.92%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-60.92%	—
Current Drawdown Current decline from peak	-26.67%	-10.28%	-16.39%
Average Drawdown Average peak-to-trough decline	-12.26%	-18.34%	+6.08%
Ulcer Index Depth and duration of drawdowns from previous peaks	13.49%	4.98%	+8.51%

Volatility

COPJ vs. WSTCX - Volatility Comparison

Sprott Junior Copper Miners ETF (COPJ) has a higher volatility of 12.52% compared to Delaware Ivy Science and Technology Fund (WSTCX) at 10.28%. This indicates that COPJ's price experiences larger fluctuations and is considered to be riskier than WSTCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COPJ	WSTCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.52%	10.28%	+2.24%
Volatility (6M) Calculated over the trailing 6-month period	39.13%	23.13%	+16.00%
Volatility (1Y) Calculated over the trailing 1-year period	45.92%	27.77%	+18.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.79%	74.73%	-38.94%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.79%	55.15%	-19.36%

COPJ vs. WSTCX - Expense Ratio Comparison

COPJ has a 0.78% expense ratio, which is lower than WSTCX's 2.14% expense ratio.

Dividends

COPJ vs. WSTCX - Dividend Comparison

COPJ's dividend yield for the trailing twelve months is around 12.06%, more than WSTCX's 10.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPJ Sprott Junior Copper Miners ETF	12.06%	11.57%	11.64%	2.48%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
WSTCX Delaware Ivy Science and Technology Fund	10.24%	13.35%	81.76%	21.98%	57.60%	61.50%	11.27%	13.85%	16.72%	7.61%	0.00%	2.85%

Frequently Asked Questions

Can I hold both COPJ and WSTCX in my portfolio?

COPJ and WSTCX have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COPJ or WSTCX?

COPJ has higher volatility (12.52%) compared to WSTCX (10.28%). In terms of maximum drawdown, COPJ dropped -32.28% vs WSTCX's -60.92%.

Which has better risk-adjusted returns?

WSTCX currently has the higher Sharpe Ratio (1.67 vs 1.41), 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.