COPX vs. FGRTX

Last updated Jun 9, 2026

COPX (Global X Copper Miners ETF) and FGRTX (Fidelity Mega Cap Stock Fund) are both funds - COPX is a Materials fund tracking the Solactive Global Copper Miners Total Return Index, while FGRTX is a Large Cap Blend Equities fund actively managed by Fidelity. COPX is passively managed, while FGRTX is actively managed. Over the past 10 years, COPX returned 20.76%/yr vs 16.16%/yr for FGRTX. A 0.62 correlation means they provide meaningful diversification when combined. COPX charges 0.65%/yr vs 0.58%/yr for FGRTX.

Performance

COPX vs. FGRTX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Global X Copper Miners ETF (COPX) and Fidelity Mega Cap Stock Fund (FGRTX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, COPX achieves a 13.23% return, which is significantly higher than FGRTX's 8.13% return. Over the past 10 years, COPX has outperformed FGRTX with an annualized return of 20.76%, while FGRTX has yielded a comparatively lower 16.16% annualized return.

COPX

• 1D: 0.81%
• 1M: -5.44%
• YTD: 13.23%
• 6M: 23.36%
• 1Y: 93.73%
• 3Y*: 32.33%
• 5Y*: 18.13%
• 10Y*: 20.76%

FGRTX

• 1D: -2.11%
• 1M: -0.65%
• YTD: 8.13%
• 6M: 9.72%
• 1Y: 27.40%
• 3Y*: 24.66%
• 5Y*: 15.67%
• 10Y*: 16.16%

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

COPX vs. FGRTX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
COPX Global X Copper Miners ETF	13.23%	93.50%	3.57%	8.38%	-0.76%	23.39%	51.66%	12.48%	-31.31%	38.92%
FGRTX Fidelity Mega Cap Stock Fund	8.13%	26.92%	25.98%	26.51%	-8.98%	26.29%	12.96%	31.07%	-7.44%	16.98%

Correlation

The correlation between COPX and FGRTX is 0.58, 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	0.58
Correlation (3Y) Calculated over the trailing 3-year period	0.53
Correlation (5Y) Calculated over the trailing 5-year period	0.59
Correlation (10Y) Calculated over the trailing 10-year period	0.60
Correlation (All Time) Calculated using the full available price history since Apr 20, 2010	0.62

The correlation between COPX and FGRTX has been stable across timeframes, ranging from 0.53 to 0.62 - a consistent structural relationship.

Return for Risk

COPX vs. FGRTX — Risk / Return Rank

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

COPX

COPX Risk / Return Rank: 67
COPX Sharpe Ratio Rank: 76
COPX Sortino Ratio Rank: 60
COPX Omega Ratio Rank: 62
COPX Calmar Ratio Rank: 74
COPX Martin Ratio Rank: 65

FGRTX

FGRTX Risk / Return Rank: 70
FGRTX Sharpe Ratio Rank: 69
FGRTX Sortino Ratio Rank: 63
FGRTX Omega Ratio Rank: 63
FGRTX Calmar Ratio Rank: 73
FGRTX Martin Ratio Rank: 81

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. FGRTX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Global X Copper Miners ETF (COPX) and Fidelity Mega Cap Stock Fund (FGRTX). 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.

	COPX	FGRTX	Difference
Sharpe ratio: Return per unit of total volatility	2.20	2.35	-0.15
Sortino ratio: Return per unit of downside risk	2.54	3.21	-0.68
Omega ratio: Gain probability vs. loss probability	1.34	1.42	-0.08
Calmar ratio: Return relative to maximum drawdown	3.39	3.20	+0.19
Martin ratio: Return relative to average drawdown	10.72	14.48	-3.76
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

COPX vs. FGRTX - Sharpe Ratio Comparison

The current COPX Sharpe Ratio is 2.20, which is comparable to the FGRTX Sharpe Ratio of 2.35. The chart below compares the historical Sharpe Ratios of COPX and FGRTX, 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

	COPX	FGRTX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.20	2.35	-0.15
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.50	0.94	-0.44
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.58	0.89	-0.31
Sharpe Ratio (All Time) Calculated using the full available price history	0.17	0.47	-0.30

Drawdowns

COPX vs. FGRTX - Drawdown Comparison

The maximum COPX drawdown since its inception was -83.16%, which is greater than FGRTX's maximum drawdown of -56.17%. Use the drawdown chart below to compare losses from any high point for COPX and FGRTX.

Drawdown Indicators

	COPX	FGRTX	Difference
Max Drawdown Largest peak-to-trough decline	-83.16%	-56.17%	-26.99%
Max Drawdown (1Y) Largest decline over 1 year	-27.82%	-8.99%	-18.83%
Max Drawdown (3Y) Largest decline over 3 years	-39.72%	-18.51%	-21.21%
Max Drawdown (5Y) Largest decline over 5 years	-42.12%	-23.35%	-18.77%
Max Drawdown (10Y) Largest decline over 10 years	-65.41%	-35.18%	-30.23%
Current Drawdown Current decline from peak	-15.06%	-2.45%	-12.61%
Average Drawdown Average peak-to-trough decline	-39.28%	-8.72%	-30.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	8.78%	1.98%	+6.80%

Volatility

COPX vs. FGRTX - Volatility Comparison

Global X Copper Miners ETF (COPX) has a higher volatility of 18.19% compared to Fidelity Mega Cap Stock Fund (FGRTX) at 3.39%. This indicates that COPX's price experiences larger fluctuations and is considered to be riskier than FGRTX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	COPX	FGRTX	Difference
Volatility (1M) Calculated over the trailing 1-month period	18.19%	3.39%	+14.80%
Volatility (6M) Calculated over the trailing 6-month period	37.27%	9.38%	+27.89%
Volatility (1Y) Calculated over the trailing 1-year period	42.89%	12.25%	+30.64%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	36.80%	16.73%	+20.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	35.68%	18.13%	+17.55%

COPX vs. FGRTX - Expense Ratio Comparison

COPX has a 0.65% expense ratio, which is higher than FGRTX's 0.58% expense ratio.

Dividends

COPX vs. FGRTX - Dividend Comparison

COPX's dividend yield for the trailing twelve months is around 2.36%, less than FGRTX's 3.60% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
COPX Global X Copper Miners ETF	2.36%	2.68%	1.80%	2.39%	3.14%	1.48%	1.30%	1.37%	2.59%	1.57%	0.60%	1.20%
FGRTX Fidelity Mega Cap Stock Fund	3.60%	3.89%	2.68%	2.06%	4.38%	4.79%	7.96%	12.98%	21.72%	15.57%	1.97%	4.16%

Frequently Asked Questions

Can I hold both COPX and FGRTX in my portfolio?

COPX and FGRTX have a correlation of 0.58, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, COPX or FGRTX?

COPX has higher volatility (18.19%) compared to FGRTX (3.39%). In terms of maximum drawdown, COPX dropped -83.16% vs FGRTX's -56.17%.

Which has better risk-adjusted returns?

FGRTX currently has the higher Sharpe Ratio (2.35 vs 2.20), 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.