MZZ vs. KORU
MZZ (ProShares UltraShort MidCap400) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds - MZZ tracks the S&P MidCap 400 Index (-200%) while KORU tracks the MSCI Korea 25-50 Index. Both are passively managed. Over the past 10 years, MZZ returned -25.27%/yr vs 19.90%/yr for KORU. At a correlation of -0.53, they often move in opposite directions. MZZ charges 0.95%/yr vs 1.29%/yr for KORU.
Performance
MZZ vs. KORU - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, MZZ achieves a -22.57% return, which is significantly lower than KORU's 574.61% return. Over the past 10 years, MZZ has underperformed KORU with an annualized return of -25.27%, while KORU has yielded a comparatively higher 19.90% annualized return.
MZZ
- 1D
- -1.64%
- 1M
- -5.89%
- YTD
- -22.57%
- 6M
- -23.66%
- 1Y
- -35.66%
- 3Y*
- -23.59%
- 5Y*
- -16.74%
- 10Y*
- -25.27%
KORU
- 1D
- -3.17%
- 1M
- 103.23%
- YTD
- 574.61%
- 6M
- 732.27%
- 1Y
- 2,236.72%
- 3Y*
- 134.36%
- 5Y*
- 24.81%
- 10Y*
- 19.90%
MZZ vs. KORU - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
MZZ ProShares UltraShort MidCap400 | -22.57% | -14.68% | -17.75% | -23.67% | 13.02% | -42.14% | -53.08% | -38.03% | 22.83% | -27.72% |
KORU Direxion Daily South Korea Bull 3X Shares | 574.61% | 432.73% | -62.18% | 28.61% | -70.16% | -33.86% | 48.78% | 5.47% | -59.89% | 167.08% |
Correlation
The correlation between MZZ and KORU is -0.46, 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 | -0.46 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.50 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.55 |
Correlation (10Y) Calculated over the trailing 10-year period | -0.55 |
Correlation (All Time) Calculated using the full available price history since Apr 11, 2013 | -0.53 |
The correlation between MZZ and KORU has been stable across timeframes, ranging from -0.55 to -0.46 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
MZZ vs. KORU — Risk / Return Rank
MZZ
KORU
MZZ vs. KORU - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for ProShares UltraShort MidCap400 (MZZ) and Direxion Daily 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.
| MZZ | KORU | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -1.15 | 18.26 | -19.41 |
Sortino ratioReturn per unit of downside risk | -1.65 | 5.25 | -6.90 |
Omega ratioGain probability vs. loss probability | 0.81 | 1.73 | -0.92 |
Calmar ratioReturn relative to maximum drawdown | -0.99 | 38.64 | -39.63 |
Martin ratioReturn relative to average drawdown | -1.73 | 122.74 | -124.47 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| MZZ | KORU | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -1.15 | 18.26 | -19.41 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.43 | 0.29 | -0.72 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | -0.61 | 0.25 | -0.86 |
Sharpe Ratio (All Time)Calculated using the full available price history | -0.60 | 0.13 | -0.73 |
Drawdowns
MZZ vs. KORU - Drawdown Comparison
The maximum MZZ drawdown since its inception was -99.90%, roughly equal to the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for MZZ and KORU.
Loading charts...
Drawdown Indicators
| MZZ | KORU | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -99.90% | -95.79% | -4.11% |
Max Drawdown (1Y)Largest decline over 1 year | -35.22% | -61.39% | +26.17% |
Max Drawdown (3Y)Largest decline over 3 years | -62.13% | -73.71% | +11.58% |
Max Drawdown (5Y)Largest decline over 5 years | -68.64% | -93.35% | +24.71% |
Max Drawdown (10Y)Largest decline over 10 years | -95.10% | -95.79% | +0.69% |
Current DrawdownCurrent decline from peak | -99.90% | -3.17% | -96.73% |
Average DrawdownAverage peak-to-trough decline | -86.07% | -57.55% | -28.52% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 20.39% | 19.33% | +1.06% |
Volatility
MZZ vs. KORU - Volatility Comparison
The current volatility for ProShares UltraShort MidCap400 (MZZ) is 8.88%, while Direxion Daily South Korea Bull 3X Shares (KORU) has a volatility of 59.91%. This indicates that MZZ 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.
Loading charts...
Volatility by Period
| MZZ | KORU | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.88% | 59.91% | -51.03% |
Volatility (6M)Calculated over the trailing 6-month period | 22.99% | 110.67% | -87.68% |
Volatility (1Y)Calculated over the trailing 1-year period | 31.15% | 124.16% | -93.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 39.16% | 85.10% | -45.94% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 41.39% | 79.92% | -38.53% |
MZZ vs. KORU - Expense Ratio Comparison
MZZ has a 0.95% expense ratio, which is lower than KORU's 1.29% expense ratio.
Dividends
MZZ vs. KORU - Dividend Comparison
MZZ's dividend yield for the trailing twelve months is around 6.70%, more than KORU's 0.14% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 |
|---|---|---|---|---|---|---|---|---|---|---|
KORU Direxion Daily South Korea Bull 3X Shares | 0.14% | 0.89% | 4.10% | 2.55% | 0.48% | 0.76% | 0.01% | 0.93% | 1.40% | 3.59% |
MZZ ProShares UltraShort MidCap400 | 6.70% | 5.27% | 6.36% | 4.52% | 0.25% | 0.00% | 0.22% | 1.53% | 0.53% | 0.00% |
Frequently Asked Questions
MZZ and KORU have a correlation of -0.46, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
KORU has higher volatility (59.91%) compared to MZZ (8.88%). In terms of maximum drawdown, MZZ dropped -99.90% vs KORU's -95.79%.
On 10-year performance, KORU leads with 19.90% vs -25.27% for MZZ. On fees, MZZ is cheaper at 0.95% per year. On volatility, MZZ has been the lower-risk option at 8.88%. 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 19.90% return vs -25.27%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
MZZ is cheaper with a 0.95% expense ratio, compared with 1.29% for KORU.
MZZ has the higher dividend yield at 6.70%, compared with 0.14% for KORU.
MZZ tracks S&P MidCap 400 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 MZZ and 1.29% for KORU.
KORU currently has the higher Sharpe Ratio (18.26 vs -1.15), 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.
Find the right allocation for MZZ and KORU
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer