EFU vs. KORU
EFU (ProShares UltraShort MSCI EAFE) and KORU (Direxion Daily MSCI South Korea Bull 3X Shares) are both exchange-traded funds - EFU is a Leveraged Equities fund tracking the MSCI EAFE Index (-200%), while KORU is a South Korea Equities fund tracking the MSCI Korea 25/50 Index. Both are passively managed. Over the past 10 years, EFU returned -19.56%/yr vs 7.79%/yr for KORU. At a correlation of -0.63, they often move in opposite directions. EFU charges 0.95%/yr vs 1.32%/yr for KORU.
Performance
EFU vs. KORU - Performance Comparison
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Returns By Period
In the year-to-date period, EFU achieves a -18.17% return, which is significantly lower than KORU's 165.12% return. Over the past 10 years, EFU has underperformed KORU with an annualized return of -19.56%, while KORU has yielded a comparatively higher 7.79% annualized return.
EFU
- 1D
- -1.43%
- 1M
- -0.81%
- 6M
- -13.34%
- YTD
- -18.17%
- 1Y
- -30.27%
- 3Y*
- -22.87%
- 5Y*
- -16.11%
- 10Y*
- -19.56%
KORU
- 1D
- 14.83%
- 1M
- -41.65%
- 6M
- 99.45%
- YTD
- 165.12%
- 1Y
- 474.18%
- 3Y*
- 67.87%
- 5Y*
- 4.47%
- 10Y*
- 7.79%
EFU vs. KORU - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
EFU ProShares UltraShort MSCI EAFE | -18.17% | -41.07% | -1.04% | -25.36% | 24.26% | -24.58% | -35.54% | -32.71% | 32.32% | -36.87% |
KORU Direxion Daily MSCI South Korea Bull 3X Shares | 165.12% | 432.73% | -62.18% | 28.61% | -70.16% | -33.86% | 48.78% | 5.47% | -59.89% | 167.08% |
Correlation
The correlation between EFU and KORU is -0.60, 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 | -0.60 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.60 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.65 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.63 |
Correlation (All Time) Calculated using the full available price history since Apr 10, 2013 | -0.63 |
The correlation between EFU and KORU has been stable across timeframes, ranging from -0.65 to -0.60 - a consistent structural relationship.
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Return for Risk
EFU vs. KORU — Risk / Return Rank
EFU
KORU
EFU vs. KORU - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort MSCI EAFE (EFU) and Direxion Daily MSCI South Korea Bull 3X Shares (KORU). 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.
| EFU | KORU | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -4.11 | ||
| Sortino ratioReturn per unit of downside risk | -4.18 | ||
| Omega ratioGain probability vs. loss probability | 0.85 | 1.42 | -0.57 |
| Calmar ratioReturn relative to maximum drawdown | -0.87 | 7.15 | -8.02 |
| Martin ratioReturn relative to average drawdown | -1.40 | 19.75 | -21.14 |
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Drawdowns
EFU vs. KORU - Drawdown Comparison
The maximum EFU drawdown since its inception was -99.38%, roughly equal to the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for EFU and KORU.
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Drawdown Indicators
| EFU | KORU | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.38% | -95.79% | -3.59% |
Max Drawdown (1Y)Largest decline over 1 year | -35.10% | -66.86% | +31.76% |
Max Drawdown (3Y)Largest decline over 3 years | -65.34% | -73.34% | +8.00% |
Max Drawdown (5Y)Largest decline over 5 years | -76.14% | -92.74% | +16.60% |
Max Drawdown (10Y)Largest decline over 10 years | -89.28% | -95.79% | +6.51% |
Current DrawdownCurrent decline from peak | -99.36% | -61.95% | -37.41% |
Average DrawdownAverage peak-to-trough decline | -87.18% | -57.39% | -29.79% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 21.71% | 24.17% | -2.46% |
Volatility
EFU vs. KORU - Volatility Comparison
The current volatility for ProShares UltraShort MSCI EAFE (EFU) is 8.27%, while Direxion Daily MSCI South Korea Bull 3X Shares (KORU) has a volatility of 73.09%. This indicates that EFU experiences smaller price fluctuations and is considered to be less risky than KORU based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| EFU | KORU | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.27% | 73.09% | -64.82% |
Volatility (6M)Calculated over the trailing 6-month period | 28.47% | 146.34% | -117.87% |
Volatility (1Y)Calculated over the trailing 1-year period | 32.55% | 150.45% | -117.90% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 33.63% | 93.71% | -60.08% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 33.57% | 84.20% | -50.63% |
EFU vs. KORU - Expense Ratio Comparison
EFU has a 0.95% expense ratio, which is lower than KORU's 1.32% expense ratio.
Dividends
EFU vs. KORU - Dividend Comparison
EFU's dividend yield for the trailing twelve months is around 5.01%, more than KORU's 0.33% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
EFU ProShares UltraShort MSCI EAFE | 5.01% | 5.57% | 3.87% | 6.41% | 1.47% | 0.00% | 0.06% | 0.95% | 0.17% | 0.00% |
KORU Direxion Daily MSCI South Korea Bull 3X Shares | 0.33% | 0.89% | 4.10% | 2.55% | 0.48% | 0.76% | 0.01% | 0.93% | 1.40% | 3.59% |
Frequently Asked Questions
EFU and KORU have a correlation of -0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
KORU has higher volatility (73.09%) compared to EFU (8.27%). In terms of maximum drawdown, EFU dropped -99.38% vs KORU's -95.79%.
On 10-year performance, KORU leads with 7.79% vs -19.56% for EFU. On fees, EFU is cheaper at 0.95% per year. On volatility, EFU has been the lower-risk option at 8.27%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 10-year period, KORU has performed better with a 7.79% return vs -19.56%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
EFU is cheaper with a 0.95% expense ratio, compared with 1.32% for KORU.
EFU has the higher dividend yield at 5.01%, compared with 0.33% for KORU.
EFU is categorized as Leveraged Equities, while KORU is South Korea Equities. EFU tracks MSCI EAFE Index (-200%), while KORU tracks MSCI Korea 25/50 Index. They also come from different issuers: ProShares and Direxion. Their fees differ too: 0.95% for EFU and 1.32% for KORU.
KORU currently has the higher Sharpe Ratio (3.18 vs -0.93), 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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