ARM vs. CPER

Last updated Jun 16, 2026

ARM (Arm Holdings plc American Depositary Shares) is a stock, while CPER (United States Copper Index Fund) is Copper fund tracking the SummerHaven Copper Index Total Return. Over the past year, ARM returned 204.35% vs 33.19% for CPER. At a 0.25 correlation, their price movements are largely independent.

Performance

ARM vs. CPER - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Arm Holdings plc American Depositary Shares (ARM) and United States Copper Index Fund (CPER). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ARM achieves a 277.41% return, which is significantly higher than CPER's 13.42% return.

ARM

• 1D: 8.33%
• 1M: 97.24%
• YTD: 277.41%
• 6M: 231.71%
• 1Y: 204.35%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CPER

• 1D: 0.25%
• 1M: 3.96%
• YTD: 13.42%
• 6M: 19.61%
• 1Y: 33.19%
• 3Y*: 18.43%
• 5Y*: 8.39%
• 10Y*: 11.25%

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

ARM vs. CPER - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
ARM Arm Holdings plc American Depositary Shares	277.41%	-11.39%	64.16%	33.95%
CPER United States Copper Index Fund	13.42%	38.95%	4.23%	3.38%

Correlation

The correlation between ARM and CPER is 0.28, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.28
Correlation (All Time) Calculated using the full available price history since Sep 14, 2023	0.25

Return for Risk

ARM vs. CPER — Risk / Return Rank

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

ARM

ARM Risk / Return Rank: 92
ARM Sharpe Ratio Rank: 95
ARM Sortino Ratio Rank: 93
ARM Omega Ratio Rank: 91
ARM Calmar Ratio Rank: 92
ARM Martin Ratio Rank: 88

CPER

CPER Risk / Return Rank: 29
CPER Sharpe Ratio Rank: 29
CPER Sortino Ratio Rank: 26
CPER Omega Ratio Rank: 36
CPER Calmar Ratio Rank: 30
CPER Martin Ratio Rank: 23

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.

ARM vs. CPER - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Arm Holdings plc American Depositary Shares (ARM) and United States Copper Index Fund (CPER). 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.

	ARM	CPER	Difference
Sharpe ratio: Return per unit of total volatility	2.97	0.96	+2.01
Sortino ratio: Return per unit of downside risk	3.43	1.31	+2.12
Omega ratio: Gain probability vs. loss probability	1.44	1.22	+0.22
Calmar ratio: Return relative to maximum drawdown	4.96	1.35	+3.61
Martin ratio: Return relative to average drawdown	9.74	2.78	+6.96

ARM vs. CPER - Sharpe Ratio Comparison

The current ARM Sharpe Ratio is 2.97, which is higher than the CPER Sharpe Ratio of 0.96. The chart below compares the historical Sharpe Ratios of ARM and CPER, 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

ARM vs. CPER - Drawdown Comparison

The maximum ARM drawdown since its inception was -53.97%, roughly equal to the maximum CPER drawdown of -54.04%. Use the drawdown chart below to compare losses from any high point for ARM and CPER.

Drawdown Indicators

	ARM	CPER	Difference
Max Drawdown Largest peak-to-trough decline	-53.97%	-54.04%	+0.07%
Max Drawdown (1Y) Largest decline over 1 year	-41.47%	-24.77%	-16.70%
Max Drawdown (3Y) Largest decline over 3 years	—	-24.77%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-34.75%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-38.42%	—
Current Drawdown Current decline from peak	0.00%	-2.34%	+2.34%
Average Drawdown Average peak-to-trough decline	-21.30%	-25.35%	+4.05%
Ulcer Index Depth and duration of drawdowns from previous peaks	21.07%	11.95%	+9.12%

Volatility

ARM vs. CPER - Volatility Comparison

Arm Holdings plc American Depositary Shares (ARM) has a higher volatility of 37.61% compared to United States Copper Index Fund (CPER) at 10.05%. This indicates that ARM's price experiences larger fluctuations and is considered to be riskier than CPER based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ARM	CPER	Difference
Volatility (1M) Calculated over the trailing 1-month period	37.61%	10.05%	+27.56%
Volatility (6M) Calculated over the trailing 6-month period	58.29%	23.31%	+34.98%
Volatility (1Y) Calculated over the trailing 1-year period	69.43%	34.88%	+34.55%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	76.67%	27.03%	+49.64%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	76.67%	24.09%	+52.58%

Dividends

ARM vs. CPER - Dividend Comparison

Neither ARM nor CPER has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both ARM and CPER in my portfolio?

ARM and CPER have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, ARM or CPER?

ARM has higher volatility (37.61%) compared to CPER (10.05%). In terms of maximum drawdown, ARM dropped -53.97% vs CPER's -54.04%.

Which has better risk-adjusted returns?

ARM currently has the higher Sharpe Ratio (2.97 vs 0.96), 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.