GUNR vs. BRK-B
GUNR (FlexShares Morningstar Global Upstream Natural Resources Index Fund) is Natural Resources fund tracking the Morningstar Global Upstream Natural Resources Index, while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, GUNR returned 9.75%/yr vs 13.17%/yr for BRK-B. A 0.52 correlation means they provide meaningful diversification when combined.
Performance
GUNR vs. BRK-B - Performance Comparison
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Returns By Period
In the year-to-date period, GUNR achieves a 8.35% return, which is significantly higher than BRK-B's -1.32% return. Over the past 10 years, GUNR has underperformed BRK-B with an annualized return of 9.75%, while BRK-B has yielded a comparatively higher 13.17% annualized return.
GUNR
- 1D
- -0.30%
- 1M
- -8.23%
- YTD
- 8.35%
- 6M
- 8.37%
- 1Y
- 26.00%
- 3Y*
- 10.35%
- 5Y*
- 8.88%
- 10Y*
- 9.75%
BRK-B
- 1D
- -0.53%
- 1M
- 4.54%
- YTD
- -1.32%
- 6M
- -1.01%
- 1Y
- 2.12%
- 3Y*
- 13.30%
- 5Y*
- 12.28%
- 10Y*
- 13.17%
GUNR vs. BRK-B - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund | 8.35% | 30.03% | -8.37% | -2.40% | 14.83% | 26.06% | 0.46% | 18.41% | -9.42% | 18.74% |
BRK-B Berkshire Hathaway Inc. | -1.32% | 10.89% | 27.09% | 15.46% | 3.31% | 28.95% | 2.37% | 10.93% | 3.01% | 21.62% |
Correlation
The correlation between GUNR 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 | 0.24 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.41 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.49 |
Correlation (All Time) Calculated using the full available price history since Sep 22, 2011 | 0.52 |
Over the past year, the correlation between GUNR and BRK-B has dropped to 0.03 - well below their long-term average of 0.52, suggesting their price drivers have been diverging.
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Return for Risk
GUNR vs. BRK-B — Risk / Return Rank
GUNR
BRK-B
GUNR vs. BRK-B - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR) 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.
| GUNR | BRK-B | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.49 | ||
| Sortino ratioReturn per unit of downside risk | +1.85 | ||
| Omega ratioGain probability vs. loss probability | 1.29 | 1.04 | +0.25 |
| Calmar ratioReturn relative to maximum drawdown | 2.25 | 0.23 | +2.02 |
| Martin ratioReturn relative to average drawdown | 9.41 | 0.47 | +8.94 |
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Drawdowns
GUNR vs. BRK-B - Drawdown Comparison
The maximum GUNR drawdown since its inception was -45.64%, smaller than the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for GUNR and BRK-B.
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Drawdown Indicators
| GUNR | BRK-B | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -45.64% | -53.86% | +8.22% |
Max Drawdown (1Y)Largest decline over 1 year | -11.63% | -9.42% | -2.21% |
Max Drawdown (3Y)Largest decline over 3 years | -19.59% | -14.95% | -4.64% |
Max Drawdown (5Y)Largest decline over 5 years | -24.06% | -26.58% | +2.52% |
Max Drawdown (10Y)Largest decline over 10 years | -43.04% | -29.57% | -13.47% |
Current DrawdownCurrent decline from peak | -11.43% | -8.11% | -3.32% |
Average DrawdownAverage peak-to-trough decline | -10.39% | -11.07% | +0.68% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 2.77% | 4.52% | -1.75% |
Volatility
GUNR vs. BRK-B - Volatility Comparison
FlexShares Morningstar Global Upstream Natural Resources Index Fund (GUNR) has a higher volatility of 5.33% compared to Berkshire Hathaway Inc. (BRK-B) at 4.27%. This indicates that GUNR'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
| GUNR | BRK-B | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.33% | 4.27% | +1.06% |
Volatility (6M)Calculated over the trailing 6-month period | 13.35% | 10.77% | +2.58% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.94% | 14.54% | +1.40% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.03% | 17.13% | +1.90% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.33% | 19.39% | +0.94% |
Dividends
GUNR vs. BRK-B - Dividend Comparison
GUNR's dividend yield for the trailing twelve months is around 2.47%, while BRK-B has not paid dividends to shareholders.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
BRK-B Berkshire Hathaway Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
GUNR FlexShares Morningstar Global Upstream Natural Resources Index Fund | 2.47% | 2.81% | 3.39% | 3.55% | 4.12% | 3.61% | 2.79% | 3.25% | 3.27% | 2.00% | 1.73% | 4.50% |
Frequently Asked Questions
GUNR 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.
GUNR has higher volatility (5.33%) compared to BRK-B (4.27%). In terms of maximum drawdown, GUNR dropped -45.64% vs BRK-B's -53.86%.
GUNR currently has the higher Sharpe Ratio (1.64 vs 0.15), 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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