COPJ vs. TNGY

Last updated Jun 24, 2026

COPJ (Sprott Junior Copper Miners ETF) and TNGY (Tortoise Energy Fund) are both exchange-traded funds - COPJ is a Copper fund tracking the Nasdaq Sprott Junior Copper Miners Index, while TNGY is a Energy Equities fund actively managed by Tortoise Capital. COPJ is passively managed, while TNGY is actively managed. Over the past year, COPJ returned 91.12% vs 12.82% for TNGY. At a 0.08 correlation, their price movements are largely independent. COPJ charges 0.78%/yr vs 0.85%/yr for TNGY.

Performance

COPJ vs. TNGY - Performance Comparison

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

Returns By Period

In the year-to-date period, COPJ achieves a 0.31% return, which is significantly lower than TNGY's 10.84% return.

COPJ

• 1D: -5.08%
• 1M: -6.08%
• YTD: 0.31%
• 6M: 1.57%
• 1Y: 91.12%
• 3Y*: 38.95%
• 5Y*: —
• 10Y*: —

TNGY

• 1D: 0.92%
• 1M: -5.44%
• YTD: 10.84%
• 6M: 11.42%
• 1Y: 12.82%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

COPJ vs. TNGY - Yearly Performance Comparison

	2026 (YTD)	2025
COPJ Sprott Junior Copper Miners ETF	0.31%	85.21%
TNGY Tortoise Energy Fund	10.84%	-2.37%

Correlation

The correlation between COPJ and TNGY is 0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.07
Correlation (All Time) Calculated using the full available price history since Jun 16, 2025	0.08

Return for Risk

COPJ vs. TNGY — Risk / Return Rank

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

COPJ

COPJ Risk / Return Rank: 56
COPJ Sharpe Ratio Rank: 65
COPJ Sortino Ratio Rank: 51
COPJ Omega Ratio Rank: 56
COPJ Calmar Ratio Rank: 60
COPJ Martin Ratio Rank: 48

TNGY

TNGY Risk / Return Rank: 25
TNGY Sharpe Ratio Rank: 24
TNGY Sortino Ratio Rank: 22
TNGY Omega Ratio Rank: 22
TNGY Calmar Ratio Rank: 28
TNGY Martin Ratio Rank: 29

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. TNGY - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Sprott Junior Copper Miners ETF (COPJ) and Tortoise Energy Fund (TNGY). 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	TNGY	Difference
Sharpe ratio: Return per unit of total volatility	2.04	0.80	+1.24
Sortino ratio: Return per unit of downside risk	2.40	1.15	+1.25
Omega ratio: Gain probability vs. loss probability	1.33	1.14	+0.19
Calmar ratio: Return relative to maximum drawdown	2.84	1.31	+1.52
Martin ratio: Return relative to average drawdown	7.73	3.85	+3.88

COPJ vs. TNGY - Sharpe Ratio Comparison

The current COPJ Sharpe Ratio is 2.04, which is higher than the TNGY Sharpe Ratio of 0.80. The chart below compares the historical Sharpe Ratios of COPJ and TNGY, 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. TNGY - Drawdown Comparison

The maximum COPJ drawdown since its inception was -32.28%, which is greater than TNGY's maximum drawdown of -9.79%. Use the drawdown chart below to compare losses from any high point for COPJ and TNGY.

Drawdown Indicators

	COPJ	TNGY	Difference
Max Drawdown Largest peak-to-trough decline	-32.28%	-9.79%	-22.49%
Max Drawdown (1Y) Largest decline over 1 year	-32.28%	-9.79%	-22.49%
Max Drawdown (3Y) Largest decline over 3 years	-32.28%	—	—
Current Drawdown Current decline from peak	-23.33%	-7.56%	-15.77%
Average Drawdown Average peak-to-trough decline	-12.01%	-3.58%	-8.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	11.82%	3.34%	+8.48%

Volatility

COPJ vs. TNGY - Volatility Comparison

Sprott Junior Copper Miners ETF (COPJ) has a higher volatility of 19.61% compared to Tortoise Energy Fund (TNGY) at 6.56%. This indicates that COPJ's price experiences larger fluctuations and is considered to be riskier than TNGY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COPJ	TNGY	Difference
Volatility (1M) Calculated over the trailing 1-month period	19.61%	6.56%	+13.05%
Volatility (6M) Calculated over the trailing 6-month period	38.85%	12.78%	+26.07%
Volatility (1Y) Calculated over the trailing 1-year period	45.16%	16.01%	+29.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	35.68%	16.44%	+19.24%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.68%	16.44%	+19.24%

COPJ vs. TNGY - Expense Ratio Comparison

COPJ has a 0.78% expense ratio, which is lower than TNGY's 0.85% expense ratio.

Dividends

COPJ vs. TNGY - Dividend Comparison

COPJ's dividend yield for the trailing twelve months is around 11.54%, more than TNGY's 3.55% yield.

Position	TTM	2025	2024	2023
COPJ Sprott Junior Copper Miners ETF	11.54%	11.57%	11.64%	2.48%
TNGY Tortoise Energy Fund	3.55%	2.59%	0.00%	0.00%

Frequently Asked Questions

Can I hold both COPJ and TNGY in my portfolio?

COPJ and TNGY have a correlation of 0.07, 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 TNGY?

COPJ has higher volatility (19.61%) compared to TNGY (6.56%). In terms of maximum drawdown, COPJ dropped -32.28% vs TNGY's -9.79%.

Which ETF is better, COPJ or TNGY?

On 1-year performance, COPJ leads with 91.12% vs 12.82% for TNGY. On fees, COPJ is cheaper at 0.78% per year. On volatility, TNGY has been the lower-risk option at 6.56%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, COPJ or TNGY?

Over the 1-year period, COPJ has performed better with a 91.12% return vs 12.82%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, COPJ or TNGY?

COPJ is cheaper with a 0.78% expense ratio, compared with 0.85% for TNGY.

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

COPJ has the higher dividend yield at 11.54%, compared with 3.55% for TNGY.

What is the main difference between COPJ and TNGY?

COPJ is categorized as Copper, while TNGY is Energy Equities. They also come from different issuers: Sprott and Tortoise Capital. Their fees differ too: 0.78% for COPJ and 0.85% for TNGY.

Which has better risk-adjusted returns?

COPJ currently has the higher Sharpe Ratio (2.04 vs 0.80), 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.