IEMG vs. BRK-B
IEMG (iShares Core MSCI Emerging Markets ETF) is Emerging Markets Diversified fund tracking the MSCI Emerging Markets Investable Market Index (USD) (Net), while BRK-B (Berkshire Hathaway Inc.) is a stock. Over the past 10 years, IEMG returned 10.42%/yr vs 13.22%/yr for BRK-B. At a 0.43 correlation, their price movements are largely independent.
Performance
IEMG vs. BRK-B - Performance Comparison
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Returns By Period
In the year-to-date period, IEMG achieves a 22.84% return, which is significantly higher than BRK-B's -2.67% return. Over the past 10 years, IEMG has underperformed BRK-B with an annualized return of 10.42%, while BRK-B has yielded a comparatively higher 13.22% annualized return.
IEMG
- 1D
- 0.61%
- 1M
- 0.34%
- YTD
- 22.84%
- 6M
- 25.59%
- 1Y
- 44.83%
- 3Y*
- 21.33%
- 5Y*
- 7.15%
- 10Y*
- 10.42%
BRK-B
- 1D
- 0.71%
- 1M
- 1.07%
- YTD
- -2.67%
- 6M
- -2.06%
- 1Y
- 0.35%
- 3Y*
- 13.30%
- 5Y*
- 11.27%
- 10Y*
- 13.22%
IEMG vs. BRK-B - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
IEMG iShares Core MSCI Emerging Markets ETF | 22.84% | 32.56% | 6.50% | 11.52% | -19.98% | -0.64% | 17.87% | 17.81% | -14.92% | 37.38% |
BRK-B Berkshire Hathaway Inc. | -2.67% | 10.89% | 27.09% | 15.46% | 3.31% | 28.95% | 2.37% | 10.93% | 3.01% | 21.62% |
Correlation
The correlation between IEMG and BRK-B is -0.07, 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 | -0.07 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.15 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.28 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.38 |
Correlation (All Time) Calculated using the full available price history since Oct 24, 2012 | 0.43 |
The correlation between IEMG and BRK-B shifts across timeframes, from -0.07 (1 year) to 0.43 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
IEMG vs. BRK-B — Risk / Return Rank
IEMG
BRK-B
IEMG vs. BRK-B - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares Core MSCI Emerging Markets ETF (IEMG) 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.
| IEMG | BRK-B | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.04 | ||
| Sortino ratioReturn per unit of downside risk | +2.57 | ||
| Omega ratioGain probability vs. loss probability | 1.39 | 1.01 | +0.38 |
| Calmar ratioReturn relative to maximum drawdown | 3.23 | -0.02 | +3.26 |
| Martin ratioReturn relative to average drawdown | 11.89 | -0.05 | +11.94 |
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Drawdowns
IEMG vs. BRK-B - Drawdown Comparison
The maximum IEMG drawdown since its inception was -38.71%, smaller than the maximum BRK-B drawdown of -53.86%. Use the drawdown chart below to compare losses from any high point for IEMG and BRK-B.
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Drawdown Indicators
| IEMG | BRK-B | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.71% | -53.86% | +15.15% |
Max Drawdown (1Y)Largest decline over 1 year | -13.21% | -9.42% | -3.79% |
Max Drawdown (3Y)Largest decline over 3 years | -17.21% | -14.95% | -2.26% |
Max Drawdown (5Y)Largest decline over 5 years | -35.75% | -26.58% | -9.17% |
Max Drawdown (10Y)Largest decline over 10 years | -38.71% | -29.57% | -9.14% |
Current DrawdownCurrent decline from peak | -3.98% | -9.36% | +5.38% |
Average DrawdownAverage peak-to-trough decline | -12.95% | -11.07% | -1.88% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.59% | 4.53% | -0.94% |
Volatility
IEMG vs. BRK-B - Volatility Comparison
iShares Core MSCI Emerging Markets ETF (IEMG) has a higher volatility of 10.60% compared to Berkshire Hathaway Inc. (BRK-B) at 3.95%. This indicates that IEMG'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
| IEMG | BRK-B | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 10.60% | 3.95% | +6.65% |
Volatility (6M)Calculated over the trailing 6-month period | 18.89% | 10.78% | +8.11% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.08% | 14.38% | +6.70% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.73% | 17.12% | +1.61% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.17% | 19.44% | +0.73% |
Dividends
IEMG vs. BRK-B - Dividend Comparison
IEMG's dividend yield for the trailing twelve months is around 2.24%, 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% |
IEMG iShares Core MSCI Emerging Markets ETF | 2.24% | 2.75% | 3.20% | 2.89% | 2.71% | 3.06% | 1.87% | 3.15% | 2.76% | 2.35% | 2.28% | 2.53% |
Frequently Asked Questions
IEMG and BRK-B have a correlation of -0.07, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
IEMG has higher volatility (10.60%) compared to BRK-B (3.95%). In terms of maximum drawdown, IEMG dropped -38.71% vs BRK-B's -53.86%.
IEMG currently has the higher Sharpe Ratio (2.03 vs -0.02), 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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