CNKY.L vs. BRK-A
CNKY.L (iShares Nikkei 225 UCITS ETF (Acc)) is Japan Equities fund tracking the TOPIX TR JPY, while BRK-A (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, CNKY.L returned 12.70%/yr vs 13.88%/yr for BRK-A. At a 0.29 correlation, their price movements are largely independent.
Performance
CNKY.L vs. BRK-A - Performance Comparison
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Different Trading Currencies
CNKY.L is traded in GBp, while BRK-A is traded in USD. To make them comparable, the BRK-A values have been converted to GBp using the latest available exchange rates.
Returns By Period
In the year-to-date period, CNKY.L achieves a 31.80% return, which is significantly higher than BRK-A's -4.43% return. Over the past 10 years, CNKY.L has underperformed BRK-A with an annualized return of 12.70%, while BRK-A has yielded a comparatively higher 13.88% annualized return.
CNKY.L
- 1D
- -1.22%
- 1M
- 7.58%
- YTD
- 31.80%
- 6M
- 28.96%
- 1Y
- 64.51%
- 3Y*
- 20.46%
- 5Y*
- 12.16%
- 10Y*
- 12.70%
BRK-A
- 1D
- 0.00%
- 1M
- 3.08%
- YTD
- -4.43%
- 6M
- -5.57%
- 1Y
- -0.86%
- 3Y*
- 9.38%
- 5Y*
- 11.54%
- 10Y*
- 13.88%
CNKY.L vs. BRK-A - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CNKY.L iShares Nikkei 225 UCITS ETF (Acc) | 31.80% | 20.64% | 9.15% | 15.02% | -10.53% | -4.18% | 21.18% | 16.38% | -3.99% | 14.19% |
BRK-A Berkshire Hathaway Inc. | -1.84% | 2.95% | 27.68% | 9.98% | 16.37% | 30.80% | -0.59% | 6.76% | 8.92% | 11.36% |
Correlation
The correlation between CNKY.L and BRK-A is -0.09, 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 | -0.09 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.05 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.12 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.29 |
Correlation (All Time) Calculated using the full available price history since Sep 16, 2010 | 0.29 |
The correlation between CNKY.L and BRK-A shifts across timeframes, from -0.09 (1 year) to 0.29 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CNKY.L vs. BRK-A — Risk / Return Rank
CNKY.L
BRK-A
CNKY.L vs. BRK-A - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Nikkei 225 UCITS ETF (Acc) (CNKY.L) and Berkshire Hathaway Inc. (BRK-A). 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.
| CNKY.L | BRK-A | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.87 | ||
| Sortino ratioReturn per unit of downside risk | +3.88 | ||
| Omega ratioGain probability vs. loss probability | 1.47 | 1.00 | +0.46 |
| Calmar ratioReturn relative to maximum drawdown | 4.76 | -0.07 | +4.83 |
| Martin ratioReturn relative to average drawdown | 14.40 | -0.16 | +14.55 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| CNKY.L | BRK-A | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.81 | -0.06 | +2.87 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.68 | 0.68 | 0.00 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.74 | 0.72 | +0.02 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.67 | 0.59 | +0.08 |
Drawdowns
CNKY.L vs. BRK-A - Drawdown Comparison
The maximum CNKY.L drawdown since its inception was -23.61%, smaller than the maximum BRK-A drawdown of -36.09%. Use the drawdown chart below to compare losses from any high point for CNKY.L and BRK-A.
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Drawdown Indicators
| CNKY.L | BRK-A | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -23.61% | -36.09% | +12.48% |
Max Drawdown (1Y)Largest decline over 1 year | -13.32% | -11.98% | -1.34% |
Max Drawdown (3Y)Largest decline over 3 years | -19.39% | -17.21% | -2.18% |
Max Drawdown (5Y)Largest decline over 5 years | -20.83% | -20.59% | -0.24% |
Max Drawdown (10Y)Largest decline over 10 years | -23.61% | -21.87% | -1.74% |
Current DrawdownCurrent decline from peak | -1.22% | -13.76% | +12.54% |
Average DrawdownAverage peak-to-trough decline | -7.33% | -7.34% | +0.01% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.41% | 5.53% | -1.12% |
Volatility
CNKY.L vs. BRK-A - Volatility Comparison
iShares Nikkei 225 UCITS ETF (Acc) (CNKY.L) has a higher volatility of 6.86% compared to Berkshire Hathaway Inc. (BRK-A) at 3.86%. This indicates that CNKY.L's price experiences larger fluctuations and is considered to be riskier than BRK-A based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CNKY.L | BRK-A | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.86% | 3.86% | +3.00% |
Volatility (6M)Calculated over the trailing 6-month period | 17.88% | 11.51% | +6.37% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.59% | 14.95% | +7.64% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.76% | 16.97% | +0.79% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.22% | 19.35% | -2.13% |
Dividends
CNKY.L vs. BRK-A - Dividend Comparison
Neither CNKY.L nor BRK-A has paid dividends to shareholders.
Frequently Asked Questions
CNKY.L and BRK-A have a correlation of -0.09, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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