WITS.AS vs. BRK-A
WITS.AS (iShares MSCI World Information Technology Sector ESG UCITS ETF) is Technology Equities fund tracking the MSCI World/Information Tech NR USD, while BRK-A (Berkshire Hathaway Inc.) is a stock. Over the past 5 years, WITS.AS returned 16.96%/yr vs 11.88%/yr for BRK-A. At a 0.18 correlation, their price movements are largely independent.
Performance
WITS.AS vs. BRK-A - Performance Comparison
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Returns By Period
In the year-to-date period, WITS.AS achieves a 15.82% return, which is significantly higher than BRK-A's -2.46% return.
WITS.AS
- 1D
- 0.56%
- 1M
- -4.71%
- 6M
- 18.11%
- YTD
- 15.82%
- 1Y
- 27.84%
- 3Y*
- 26.43%
- 5Y*
- 16.96%
- 10Y*
- —
- ALL TIME*
- 23.02%
BRK-A
- 1D
- 0.03%
- 1M
- 0.35%
- 6M
- -0.61%
- YTD
- -2.46%
- 1Y
- 3.55%
- 3Y*
- 11.73%
- 5Y*
- 11.88%
- 10Y*
- 13.00%
- ALL TIME*
- 18.43%
WITS.AS vs. BRK-A - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
WITS.AS iShares MSCI World Information Technology Sector ESG UCITS ETF | 15.82% | 22.44% | 27.56% | 60.71% | -33.28% | 30.10% | 44.41% | 11.30% |
BRK-A Berkshire Hathaway Inc. | -2.46% | 10.85% | 25.49% | 15.77% | 4.00% | 29.57% | 2.42% | 8.06% |
Correlation
The correlation between WITS.AS and BRK-A is -0.14, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.14 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.01 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.14 |
Correlation (All Time) Calculated using the full available price history since Oct 16, 2019 | 0.18 |
The correlation between WITS.AS and BRK-A shifts across timeframes, from -0.14 (1 year) to 0.18 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
WITS.AS vs. BRK-A — Risk / Return Rank
WITS.AS
BRK-A
WITS.AS vs. BRK-A - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MSCI World Information Technology Sector ESG UCITS ETF (WITS.AS) 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.
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.
| WITS.AS | BRK-A | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.03 | ||
| Sortino ratioReturn per unit of downside risk | +1.44 | ||
| Omega ratioGain probability vs. loss probability | 1.23 | 1.06 | +0.17 |
| Calmar ratioReturn relative to maximum drawdown | 1.71 | 0.39 | +1.32 |
| Martin ratioReturn relative to average drawdown | 4.87 | 0.80 | +4.06 |
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Drawdowns
WITS.AS vs. BRK-A - Drawdown Comparison
The maximum WITS.AS drawdown since its inception was -39.11%, smaller than the maximum BRK-A drawdown of -51.47%. Use the drawdown chart below to compare losses from any high point for WITS.AS and BRK-A.
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Drawdown Indicators
| WITS.AS | BRK-A | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -39.11% | -51.47% | +12.36% |
Max Drawdown (1Y)Largest decline over 1 year | -16.06% | -9.12% | -6.94% |
Max Drawdown (3Y)Largest decline over 3 years | -25.21% | -14.43% | -10.78% |
Max Drawdown (5Y)Largest decline over 5 years | -39.11% | -25.98% | -13.13% |
Max Drawdown (10Y)Largest decline over 10 years | — | -30.43% | — |
Current DrawdownCurrent decline from peak | -8.32% | -9.04% | +0.72% |
Average DrawdownAverage peak-to-trough decline | -8.37% | -9.51% | +1.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.68% | 4.42% | +1.26% |
Volatility
WITS.AS vs. BRK-A - Volatility Comparison
iShares MSCI World Information Technology Sector ESG UCITS ETF (WITS.AS) has a higher volatility of 7.42% compared to Berkshire Hathaway Inc. (BRK-A) at 3.64%. This indicates that WITS.AS'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
| WITS.AS | BRK-A | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.42% | 3.64% | +3.78% |
Volatility (6M)Calculated over the trailing 6-month period | 17.46% | 10.63% | +6.83% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.38% | 13.98% | +7.40% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.07% | 17.10% | +6.97% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 24.50% | 18.94% | +5.56% |
Dividends
WITS.AS vs. BRK-A - Dividend Comparison
WITS.AS's dividend yield for the trailing twelve months is around 0.26%, while BRK-A has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
BRK-A Berkshire Hathaway Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
WITS.AS iShares MSCI World Information Technology Sector ESG UCITS ETF | 0.26% | 0.31% | 0.38% | 0.46% | 0.81% | 0.41% | 0.62% | 0.12% |
Frequently Asked Questions
WITS.AS and BRK-A have a correlation of -0.14, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
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