GBSS.L vs. COPA.L

Last updated Jun 4, 2026

GBSS.L (Gold Bullion Securities) and COPA.L (WisdomTree Copper) are both exchange-traded funds - GBSS.L is a Precious Metals fund tracking the Gold, while COPA.L is a Metals fund tracking the Bloomberg Copper Subindex. Both are passively managed. Over the past 10 years, GBSS.L returned 14.02%/yr vs 11.26%/yr for COPA.L. At a 0.23 correlation, their price movements are largely independent. GBSS.L charges 0.40%/yr vs 0.49%/yr for COPA.L.

Performance

GBSS.L vs. COPA.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in Gold Bullion Securities (GBSS.L) and WisdomTree Copper (COPA.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

GBSS.L is traded in GBp, while COPA.L is traded in USD. To make them comparable, the COPA.L values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, GBSS.L achieves a 3.09% return, which is significantly lower than COPA.L's 14.05% return. Over the past 10 years, GBSS.L has outperformed COPA.L with an annualized return of 14.02%, while COPA.L has yielded a comparatively lower 11.26% annualized return.

GBSS.L

• 1D: -1.16%
• 1M: -2.90%
• YTD: 3.09%
• 6M: 4.31%
• 1Y: 32.90%
• 3Y*: 27.55%
• 5Y*: 19.36%
• 10Y*: 14.02%

COPA.L

• 1D: -2.27%
• 1M: 10.14%
• YTD: 14.05%
• 6M: 19.02%
• 1Y: 31.69%
• 3Y*: 16.43%
• 5Y*: 8.15%
• 10Y*: 11.26%

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

GBSS.L vs. COPA.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
GBSS.L Gold Bullion Securities	3.09%	53.13%	27.82%	6.96%	11.51%	-3.12%	19.73%	14.42%	4.17%	1.53%
COPA.L WisdomTree Copper	14.05%	26.65%	6.64%	-2.47%	-3.31%	25.53%	17.85%	0.91%	-15.65%	15.87%

Correlation

The correlation between GBSS.L and COPA.L is 0.38, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.38
Correlation (3Y) Calculated over the trailing 3-year period	0.29
Correlation (5Y) Calculated over the trailing 5-year period	0.23
Correlation (10Y) Calculated over the trailing 10-year period	0.21
Correlation (All Time) Calculated using the full available price history since Nov 13, 2007	0.23

The correlation between GBSS.L and COPA.L shifts across timeframes, from 0.21 (10 years) to 0.38 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

GBSS.L vs. COPA.L — Risk / Return Rank

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

GBSS.L

GBSS.L Risk / Return Rank: 38
GBSS.L Sharpe Ratio Rank: 40
GBSS.L Sortino Ratio Rank: 35
GBSS.L Omega Ratio Rank: 45
GBSS.L Calmar Ratio Rank: 38
GBSS.L Martin Ratio Rank: 33

COPA.L

COPA.L Risk / Return Rank: 26
COPA.L Sharpe Ratio Rank: 25
COPA.L Sortino Ratio Rank: 23
COPA.L Omega Ratio Rank: 33
COPA.L Calmar Ratio Rank: 26
COPA.L Martin Ratio Rank: 22

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.

GBSS.L vs. COPA.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Gold Bullion Securities (GBSS.L) and WisdomTree Copper (COPA.L). 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.

	GBSS.L	COPA.L	Difference
Sharpe ratio: Return per unit of total volatility	1.43	0.98	+0.45
Sortino ratio: Return per unit of downside risk	1.85	1.30	+0.55
Omega ratio: Gain probability vs. loss probability	1.28	1.24	+0.04
Calmar ratio: Return relative to maximum drawdown	1.83	1.32	+0.50
Martin ratio: Return relative to average drawdown	4.96	2.92	+2.04
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

GBSS.L vs. COPA.L - Sharpe Ratio Comparison

The current GBSS.L Sharpe Ratio is 1.43, which is higher than the COPA.L Sharpe Ratio of 0.98. The chart below compares the historical Sharpe Ratios of GBSS.L and COPA.L, 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

	GBSS.L	COPA.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.43	0.98	+0.45
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	1.20	0.33	+0.87
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.89	0.50	+0.39
Sharpe Ratio (All Time) Calculated using the full available price history	0.65	0.14	+0.51

Drawdowns

GBSS.L vs. COPA.L - Drawdown Comparison

The maximum GBSS.L drawdown since its inception was -42.08%, smaller than the maximum COPA.L drawdown of -58.32%. Use the drawdown chart below to compare losses from any high point for GBSS.L and COPA.L.

Drawdown Indicators

	GBSS.L	COPA.L	Difference
Max Drawdown Largest peak-to-trough decline	-42.08%	-58.32%	+16.24%
Max Drawdown (1Y) Largest decline over 1 year	-17.92%	-23.82%	+5.90%
Max Drawdown (3Y) Largest decline over 3 years	-17.92%	-23.82%	+5.90%
Max Drawdown (5Y) Largest decline over 5 years	-17.92%	-26.80%	+8.88%
Max Drawdown (10Y) Largest decline over 10 years	-22.41%	-31.28%	+8.87%
Current Drawdown Current decline from peak	-16.67%	-2.27%	-14.40%
Average Drawdown Average peak-to-trough decline	-13.55%	-25.47%	+11.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.62%	10.84%	-4.22%

Volatility

GBSS.L vs. COPA.L - Volatility Comparison

The current volatility for Gold Bullion Securities (GBSS.L) is 5.06%, while WisdomTree Copper (COPA.L) has a volatility of 8.16%. This indicates that GBSS.L experiences smaller price fluctuations and is considered to be less risky than COPA.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	GBSS.L	COPA.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.06%	8.16%	-3.10%
Volatility (6M) Calculated over the trailing 6-month period	19.83%	17.79%	+2.04%
Volatility (1Y) Calculated over the trailing 1-year period	22.97%	32.36%	-9.39%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.13%	24.66%	-8.53%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	15.77%	22.69%	-6.92%

GBSS.L vs. COPA.L - Expense Ratio Comparison

GBSS.L has a 0.40% expense ratio, which is lower than COPA.L's 0.49% expense ratio.

Dividends

GBSS.L vs. COPA.L - Dividend Comparison

Neither GBSS.L nor COPA.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both GBSS.L and COPA.L in my portfolio?

GBSS.L and COPA.L have a correlation of 0.38, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, GBSS.L or COPA.L?

On fees, GBSS.L is cheaper at 0.40% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, GBSS.L or COPA.L?

GBSS.L is cheaper with a 0.40% expense ratio, compared with 0.49% for COPA.L.

What is the main difference between GBSS.L and COPA.L?

GBSS.L is categorized as Precious Metals, while COPA.L is Metals. GBSS.L tracks Gold, while COPA.L tracks Bloomberg Copper Subindex. Their fees differ too: 0.40% for GBSS.L and 0.49% for COPA.L.