EWY vs. MU
EWY (iShares MSCI South Korea ETF) is Asia Pacific Equities fund tracking the MSCI Korea Index, while MU (Micron Technology, Inc.) is a stock. Over the past 10 years, EWY returned 16.84%/yr vs 55.83%/yr for MU. At a 0.43 correlation, their price movements are largely independent.
Performance
EWY vs. MU - Performance Comparison
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Returns By Period
In the year-to-date period, EWY achieves a 103.10% return, which is significantly lower than MU's 244.07% return. Over the past 10 years, EWY has underperformed MU with an annualized return of 16.84%, while MU has yielded a comparatively higher 55.83% annualized return.
EWY
- 1D
- -0.75%
- 1M
- 3.64%
- YTD
- 103.10%
- 6M
- 117.85%
- 1Y
- 203.95%
- 3Y*
- 46.46%
- 5Y*
- 18.80%
- 10Y*
- 16.84%
MU
- 1D
- -1.43%
- 1M
- 26.49%
- YTD
- 244.07%
- 6M
- 307.41%
- 1Y
- 751.18%
- 3Y*
- 144.69%
- 5Y*
- 66.21%
- 10Y*
- 55.83%
EWY vs. MU - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
EWY iShares MSCI South Korea ETF | 103.10% | 95.33% | -20.48% | 19.05% | -26.59% | -7.58% | 39.43% | 7.97% | -20.37% | 44.97% |
MU Micron Technology, Inc. | 244.07% | 240.24% | -0.96% | 71.93% | -45.93% | 24.21% | 39.79% | 69.49% | -22.84% | 87.59% |
Correlation
The correlation between EWY and MU is 0.64, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.64 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.55 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.55 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.50 |
Correlation (All Time) Calculated using the full available price history since May 12, 2000 | 0.43 |
Over the past year, EWY and MU have become more correlated (0.64) than their long-term average of 0.43, meaning their price movements have been converging.
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Return for Risk
EWY vs. MU — Risk / Return Rank
EWY
MU
EWY vs. MU - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares MSCI South Korea ETF (EWY) and Micron Technology, Inc. (MU). 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.
| EWY | MU | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -6.54 | ||
| Sortino ratioReturn per unit of downside risk | -2.07 | ||
| Omega ratioGain probability vs. loss probability | 1.59 | 1.78 | -0.19 |
| Calmar ratioReturn relative to maximum drawdown | 8.65 | 24.91 | -16.26 |
| Martin ratioReturn relative to average drawdown | 30.24 | 94.64 | -64.40 |
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Drawdowns
EWY vs. MU - Drawdown Comparison
The maximum EWY drawdown since its inception was -74.14%, smaller than the maximum MU drawdown of -98.25%. Use the drawdown chart below to compare losses from any high point for EWY and MU.
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Drawdown Indicators
| EWY | MU | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -74.14% | -98.25% | +24.11% |
Max Drawdown (1Y)Largest decline over 1 year | -23.08% | -30.28% | +7.20% |
Max Drawdown (3Y)Largest decline over 3 years | -27.36% | -57.63% | +30.27% |
Max Drawdown (5Y)Largest decline over 5 years | -48.55% | -57.63% | +9.08% |
Max Drawdown (10Y)Largest decline over 10 years | -49.73% | -57.63% | +7.90% |
Current DrawdownCurrent decline from peak | -8.88% | -9.07% | +0.19% |
Average DrawdownAverage peak-to-trough decline | -20.11% | -58.16% | +38.05% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.59% | 7.95% | -1.36% |
Volatility
EWY vs. MU - Volatility Comparison
The current volatility for iShares MSCI South Korea ETF (EWY) is 25.64%, while Micron Technology, Inc. (MU) has a volatility of 32.86%. This indicates that EWY experiences smaller price fluctuations and is considered to be less risky than MU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| EWY | MU | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 25.64% | 32.86% | -7.22% |
Volatility (6M)Calculated over the trailing 6-month period | 42.65% | 57.74% | -15.09% |
Volatility (1Y)Calculated over the trailing 1-year period | 46.51% | 69.66% | -23.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 30.15% | 53.18% | -23.03% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 28.06% | 50.12% | -22.06% |
Dividends
EWY vs. MU - Dividend Comparison
EWY's dividend yield for the trailing twelve months is around 1.03%, more than MU's 0.05% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
EWY iShares MSCI South Korea ETF | 1.03% | 2.10% | 2.55% | 2.52% | 1.23% | 2.16% | 0.73% | 2.10% | 1.34% | 2.90% | 1.21% | 2.42% |
MU Micron Technology, Inc. | 0.05% | 0.16% | 0.55% | 0.54% | 0.89% | 0.21% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
EWY and MU have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
MU has higher volatility (32.86%) compared to EWY (25.64%). In terms of maximum drawdown, EWY dropped -74.14% vs MU's -98.25%.
MU currently has the higher Sharpe Ratio (10.83 vs 4.29), 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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