CPER vs. BRK-B
CPER (United States Copper Index Fund) is Copper fund tracking the SummerHaven Copper Index Total Return, while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, CPER returned 10.14%/yr vs 13.01%/yr for BRK-B. At a 0.21 correlation, their price movements are largely independent.
Performance
CPER vs. BRK-B - Performance Comparison
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Returns By Period
In the year-to-date period, CPER achieves a 9.90% return, which is significantly higher than BRK-B's -2.27% return. Over the past 10 years, CPER has underperformed BRK-B with an annualized return of 10.14%, while BRK-B has yielded a comparatively higher 13.01% annualized return.
CPER
- 1D
- 1.32%
- 1M
- -1.13%
- 6M
- 6.90%
- YTD
- 9.90%
- 1Y
- 10.85%
- 3Y*
- 17.70%
- 5Y*
- 7.97%
- 10Y*
- 10.14%
- ALL TIME*
- 2.94%
BRK-B
- 1D
- 0.07%
- 1M
- 0.37%
- 6M
- -0.41%
- YTD
- -2.27%
- 1Y
- 3.68%
- 3Y*
- 12.42%
- 5Y*
- 11.91%
- 10Y*
- 13.01%
- ALL TIME*
- 10.58%
CPER vs. BRK-B - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CPER United States Copper Index Fund | 9.90% | 38.95% | 4.23% | 4.55% | -15.14% | 25.21% | 23.90% | 6.66% | -21.91% | 28.80% |
BRK-B Berkshire Hathaway Inc. | -2.27% | 10.89% | 27.09% | 15.46% | 3.31% | 28.95% | 2.37% | 10.93% | 3.01% | 21.62% |
Correlation
The correlation between CPER and BRK-B is 0.03, 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 | 0.03 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.06 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.16 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.21 |
Correlation (All Time) Calculated using the full available price history since Nov 15, 2011 | 0.21 |
The correlation between CPER and BRK-B shifts across timeframes, from 0.03 (1 year) to 0.21 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CPER vs. BRK-B — Risk / Return Rank
CPER
BRK-B
CPER vs. BRK-B - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for United States Copper Index Fund (CPER) and Berkshire Hathaway Inc. (BRK-B). 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.
| CPER | BRK-B | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.07 | ||
| Sortino ratioReturn per unit of downside risk | +0.15 | ||
| Omega ratioGain probability vs. loss probability | 1.10 | 1.05 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 0.44 | 0.39 | +0.05 |
| Martin ratioReturn relative to average drawdown | 0.90 | 0.82 | +0.08 |
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Drawdowns
CPER vs. BRK-B - Drawdown Comparison
The maximum CPER drawdown since its inception was -54.04%, roughly equal to the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for CPER and BRK-B.
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Drawdown Indicators
| CPER | BRK-B | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -54.04% | -53.86% | -0.18% |
Max Drawdown (1Y)Largest decline over 1 year | -24.77% | -9.42% | -15.35% |
Max Drawdown (3Y)Largest decline over 3 years | -24.77% | -14.95% | -9.82% |
Max Drawdown (5Y)Largest decline over 5 years | -34.75% | -26.58% | -8.17% |
Max Drawdown (10Y)Largest decline over 10 years | -38.42% | -29.57% | -8.85% |
Current DrawdownCurrent decline from peak | -5.37% | -8.99% | +3.62% |
Average DrawdownAverage peak-to-trough decline | -25.24% | -11.06% | -14.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 12.13% | 4.50% | +7.63% |
Volatility
CPER vs. BRK-B - Volatility Comparison
United States Copper Index Fund (CPER) has a higher volatility of 6.94% compared to Berkshire Hathaway Inc. (BRK-B) at 4.42%. This indicates that CPER's price experiences larger fluctuations and is considered to be riskier than BRK-B based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CPER | BRK-B | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.94% | 4.42% | +2.52% |
Volatility (6M)Calculated over the trailing 6-month period | 21.89% | 11.07% | +10.82% |
Volatility (1Y)Calculated over the trailing 1-year period | 34.16% | 14.57% | +19.59% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 27.10% | 17.09% | +10.01% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.08% | 19.40% | +4.68% |
Dividends
CPER vs. BRK-B - Dividend Comparison
Neither CPER nor BRK-B has paid dividends to shareholders.
Frequently Asked Questions
CPER and BRK-B have a correlation of 0.03, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
CPER has higher volatility (6.94%) compared to BRK-B (4.42%). In terms of maximum drawdown, CPER dropped -54.04% vs BRK-B's -53.86%.
CPER currently has the higher Sharpe Ratio (0.32 vs 0.25), 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.
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