KORU vs. UMDD

Last updated Jul 22, 2026

KORU (Direxion Daily MSCI South Korea Bull 3X Shares) and UMDD (ProShares UltraPro MidCap400) are both exchange-traded funds - KORU is a South Korea Equities fund tracking the MSCI Korea 25/50 Index, while UMDD is a Leveraged Equities fund tracking the S&P MidCap 400 Index (300%). Both are passively managed. Over the past 10 years, KORU returned 6.71%/yr vs 11.03%/yr for UMDD. A 0.54 correlation means they provide meaningful diversification when combined. KORU charges 1.32%/yr vs 0.95%/yr for UMDD.

Performance

KORU vs. UMDD - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Direxion Daily MSCI South Korea Bull 3X Shares (KORU) and ProShares UltraPro MidCap400 (UMDD). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, KORU achieves a 139.37% return, which is significantly higher than UMDD's 38.51% return. Over the past 10 years, KORU has underperformed UMDD with an annualized return of 6.71%, while UMDD has yielded a comparatively higher 11.03% annualized return.

KORU

• 1D: 18.03%
• 1M: -60.16%
• 6M: 64.51%
• YTD: 139.37%
• 1Y: 406.75%
• 3Y*: 65.37%
• 5Y*: 3.37%
• 10Y*: 6.71%
• ALL TIME*: 1.58%

UMDD

• 1D: 3.00%
• 1M: -1.43%
• 6M: 22.31%
• YTD: 38.51%
• 1Y: 50.43%
• 3Y*: 17.74%
• 5Y*: 4.51%
• 10Y*: 11.03%
• ALL TIME*: 19.40%

*Multi-year figures are annualized to reflect compound growth (CAGR)

KORU vs. UMDD - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
KORU Direxion Daily MSCI South Korea Bull 3X Shares	139.37%	432.73%	-62.18%	28.61%	-70.16%	-33.86%	48.78%	5.47%	-59.89%	167.08%
UMDD ProShares UltraPro MidCap400	38.51%	-2.57%	19.68%	27.21%	-49.60%	72.27%	-17.30%	78.90%	-40.29%	49.17%

Correlation

The correlation between KORU and UMDD is 0.51, 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	0.51
Correlation (3Y) Calculated over the trailing 3-year period	0.52
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 10, 2013	0.54

The correlation between KORU and UMDD has been stable across timeframes, ranging from 0.51 to 0.55 - a consistent structural relationship.

KORU vs. UMDD - Sectors Allocation Comparison

Sectors	KORU	UMDD
Technology	61.3%	17.2%
Industrials	15.4%	25.3%
Financial Services	8.8%	13.9%
Consumer Cyclical	4.7%	10.5%
Healthcare	3.1%	9.0%
Communication Services	2.6%	1.5%
Consumer Defensive	1.7%	3.2%
Basic Materials	1.2%	4.8%
Energy	1.0%	4.6%
Utilities	0.3%	2.9%
Real Estate	-	7.2%

Return for Risk

KORU vs. UMDD — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

KORU

KORU Risk / Return Rank: 90
KORU Sharpe Ratio Rank: 94
KORU Sortino Ratio Rank: 81
KORU Omega Ratio Rank: 86
KORU Calmar Ratio Rank: 95
KORU Martin Ratio Rank: 91

UMDD

UMDD Risk / Return Rank: 45
UMDD Sharpe Ratio Rank: 39
UMDD Sortino Ratio Rank: 43
UMDD Omega Ratio Rank: 39
UMDD Calmar Ratio Rank: 51
UMDD Martin Ratio Rank: 51

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

KORU vs. UMDD - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Direxion Daily MSCI South Korea Bull 3X Shares (KORU) and ProShares UltraPro MidCap400 (UMDD). 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.

	KORU	UMDD	Difference
Sharpe ratio: Return per unit of total volatility	2.69	1.07	+1.62
Sortino ratio: Return per unit of downside risk	2.76	1.69	+1.07
Omega ratio: Gain probability vs. loss probability	1.39	1.20	+0.19
Calmar ratio: Return relative to maximum drawdown	5.76	1.95	+3.82
Martin ratio: Return relative to average drawdown	15.72	6.43	+9.29

KORU vs. UMDD - Sharpe Ratio Comparison

The current KORU Sharpe Ratio is 2.69, which is higher than the UMDD Sharpe Ratio of 1.07. The chart below compares the historical Sharpe Ratios of KORU and UMDD, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

KORU vs. UMDD - Drawdown Comparison

The maximum KORU drawdown since its inception was -95.79%, which is greater than UMDD's maximum drawdown of -86.24%. Use the drawdown chart below to compare losses from any high point for KORU and UMDD.

Drawdown Indicators

	KORU	UMDD	Difference
Max Drawdown Largest peak-to-trough decline	-95.79%	-86.24%	-9.55%
Max Drawdown (1Y) Largest decline over 1 year	-71.13%	-26.04%	-45.09%
Max Drawdown (3Y) Largest decline over 3 years	-73.34%	-60.33%	-13.01%
Max Drawdown (5Y) Largest decline over 5 years	-92.74%	-64.61%	-28.13%
Max Drawdown (10Y) Largest decline over 10 years	-95.79%	-86.24%	-9.55%
Current Drawdown Current decline from peak	-65.64%	-5.90%	-59.74%
Average Drawdown Average peak-to-trough decline	-57.40%	-23.46%	-33.94%
Ulcer Index Depth and duration of drawdowns from previous peaks	26.04%	7.87%	+18.17%

Volatility

KORU vs. UMDD - Volatility Comparison

Direxion Daily MSCI South Korea Bull 3X Shares (KORU) has a higher volatility of 70.29% compared to ProShares UltraPro MidCap400 (UMDD) at 10.22%. This indicates that KORU's price experiences larger fluctuations and is considered to be riskier than UMDD based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	KORU	UMDD	Difference
Volatility (1M) Calculated over the trailing 1-month period	70.29%	10.22%	+60.07%
Volatility (6M) Calculated over the trailing 6-month period	148.29%	35.30%	+112.99%
Volatility (1Y) Calculated over the trailing 1-year period	152.54%	47.25%	+105.29%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	94.31%	58.69%	+35.62%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	84.57%	62.10%	+22.47%

KORU vs. UMDD - Expense Ratio Comparison

KORU has a 1.32% expense ratio, which is higher than UMDD's 0.95% expense ratio.

Dividends

KORU vs. UMDD - Dividend Comparison

KORU's dividend yield for the trailing twelve months is around 0.36%, less than UMDD's 0.67% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
KORU Direxion Daily MSCI South Korea Bull 3X Shares	0.36%	0.89%	4.10%	2.55%	0.48%	0.76%	0.01%	0.93%	1.40%	3.59%	0.00%	0.00%
UMDD ProShares UltraPro MidCap400	0.67%	1.00%	0.76%	0.19%	0.49%	0.06%	0.08%	0.64%	0.32%	0.00%	0.03%	0.06%

Frequently Asked Questions

Can I hold both KORU and UMDD in my portfolio?

KORU and UMDD have a correlation of 0.51, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, KORU or UMDD?

KORU has higher volatility (70.29%) compared to UMDD (10.22%). In terms of maximum drawdown, KORU dropped -95.79% vs UMDD's -86.24%.

Which ETF is better, KORU or UMDD?

On 10-year performance, UMDD leads with 11.03% vs 6.71% for KORU. On fees, UMDD is cheaper at 0.95% per year. On volatility, UMDD has been the lower-risk option at 10.22%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, KORU or UMDD?

Over the 10-year period, UMDD has performed better with a 11.03% return vs 6.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, KORU or UMDD?

UMDD is cheaper with a 0.95% expense ratio, compared with 1.32% for KORU.

Which ETF pays a higher dividend yield, KORU or UMDD?

UMDD has the higher dividend yield at 0.67%, compared with 0.36% for KORU.

What is the main difference between KORU and UMDD?

KORU is categorized as South Korea Equities, while UMDD is Leveraged Equities. KORU tracks MSCI Korea 25/50 Index, while UMDD tracks S&P MidCap 400 Index (300%). They also come from different issuers: Direxion and ProShares. Their fees differ too: 1.32% for KORU and 0.95% for UMDD.

Which has better risk-adjusted returns?

KORU currently has the higher Sharpe Ratio (2.69 vs 1.07), 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.