TER vs. EWY
TER (Teradyne, Inc.) is a stock, while EWY (iShares MSCI South Korea ETF) is Asia Pacific Equities fund tracking the MSCI Korea Index. Over the past 10 years, TER returned 36.09%/yr vs 16.84%/yr for EWY. At a 0.48 correlation, their price movements are largely independent.
Performance
TER vs. EWY - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with TER having a 108.47% return and EWY slightly lower at 103.10%. Over the past 10 years, TER has outperformed EWY with an annualized return of 36.09%, while EWY has yielded a comparatively lower 16.84% annualized return.
TER
- 1D
- 5.72%
- 1M
- 19.38%
- YTD
- 108.47%
- 6M
- 108.68%
- 1Y
- 386.56%
- 3Y*
- 54.13%
- 5Y*
- 26.29%
- 10Y*
- 36.09%
EWY
- 1D
- -0.75%
- 1M
- 10.39%
- YTD
- 103.10%
- 6M
- 117.85%
- 1Y
- 203.95%
- 3Y*
- 46.46%
- 5Y*
- 18.80%
- 10Y*
- 16.84%
TER vs. EWY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TER Teradyne, Inc. | 108.47% | 54.39% | 16.51% | 24.78% | -46.35% | 36.81% | 76.73% | 118.93% | -24.37% | 66.16% |
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% |
Correlation
The correlation between TER and EWY is 0.56, 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 | 0.56 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.52 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.54 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.52 |
Correlation (All Time) Calculated using the full available price history since May 12, 2000 | 0.48 |
The correlation between TER and EWY has been stable across timeframes, ranging from 0.48 to 0.56 - a consistent structural relationship.
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Return for Risk
TER vs. EWY — Risk / Return Rank
TER
EWY
TER vs. EWY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Teradyne, Inc. (TER) and iShares MSCI South Korea ETF (EWY). 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.
| TER | EWY | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.27 | ||
| Sortino ratioReturn per unit of downside risk | +0.42 | ||
| Omega ratioGain probability vs. loss probability | 1.64 | 1.59 | +0.05 |
| Calmar ratioReturn relative to maximum drawdown | 13.97 | 8.65 | +5.33 |
| Martin ratioReturn relative to average drawdown | 49.81 | 30.24 | +19.57 |
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Drawdowns
TER vs. EWY - Drawdown Comparison
The maximum TER drawdown since its inception was -97.30%, which is greater than EWY's maximum drawdown of -74.14%. Use the drawdown chart below to compare losses from any high point for TER and EWY.
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Drawdown Indicators
| TER | EWY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -97.30% | -74.14% | -23.16% |
Max Drawdown (1Y)Largest decline over 1 year | -26.73% | -23.08% | -3.65% |
Max Drawdown (3Y)Largest decline over 3 years | -58.18% | -27.36% | -30.82% |
Max Drawdown (5Y)Largest decline over 5 years | -59.12% | -48.55% | -10.57% |
Max Drawdown (10Y)Largest decline over 10 years | -59.12% | -49.73% | -9.39% |
Current DrawdownCurrent decline from peak | -3.52% | -8.88% | +5.36% |
Average DrawdownAverage peak-to-trough decline | -58.67% | -20.11% | -38.56% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.49% | 6.59% | +0.90% |
Volatility
TER vs. EWY - Volatility Comparison
Teradyne, Inc. (TER) and iShares MSCI South Korea ETF (EWY) have volatilities of 25.00% and 25.64%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| TER | EWY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 25.00% | 25.64% | -0.64% |
Volatility (6M)Calculated over the trailing 6-month period | 53.10% | 42.65% | +10.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 67.20% | 46.51% | +20.69% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 50.20% | 30.15% | +20.05% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 45.31% | 28.06% | +17.25% |
Dividends
TER vs. EWY - Dividend Comparison
TER's dividend yield for the trailing twelve months is around 0.12%, less than EWY's 1.03% 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% |
TER Teradyne, Inc. | 0.12% | 0.25% | 0.38% | 0.41% | 0.50% | 0.24% | 0.33% | 0.53% | 1.15% | 0.67% | 0.94% | 1.16% |
Frequently Asked Questions
TER and EWY have a correlation of 0.56, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
EWY has higher volatility (25.64%) compared to TER (25.00%). In terms of maximum drawdown, TER dropped -97.30% vs EWY's -74.14%.
TER currently has the higher Sharpe Ratio (5.56 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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