MUU vs. KORU

Last updated Jul 15, 2026

MUU (Direxion Daily MU Bull 2X Shares) and KORU (Direxion Daily MSCI South Korea Bull 3X Shares) are both exchange-traded funds - MUU is a Leveraged Equities fund tracking the Micron Technology, Inc. (200% Daily), while KORU is a South Korea Equities fund tracking the MSCI Korea 25/50 Index. Both are passively managed. Over the past year, MUU returned 3397.63% vs 474.18% for KORU. A 0.59 correlation means they provide meaningful diversification when combined. MUU charges 1.01%/yr vs 1.32%/yr for KORU.

Performance

MUU vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Direxion Daily MU Bull 2X Shares (MUU) and Direxion Daily MSCI South Korea Bull 3X Shares (KORU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, MUU achieves a 640.02% return, which is significantly higher than KORU's 165.12% return.

MUU

• 1D: 9.50%
• 1M: -10.60%
• 6M: 441.55%
• YTD: 640.02%
• 1Y: 3,397.63%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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%

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

MUU vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MUU Direxion Daily MU Bull 2X Shares	640.02%	599.03%	-40.91%
KORU Direxion Daily MSCI South Korea Bull 3X Shares	165.12%	432.73%	-47.79%

Correlation

The correlation between MUU and KORU is 0.63, 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	0.63
Correlation (All Time) Calculated using the full available price history since Oct 10, 2024	0.59

The correlation between MUU and KORU has been stable across timeframes, ranging from 0.59 to 0.63 - a consistent structural relationship.

Return for Risk

MUU vs. KORU — Risk / Return Rank

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

MUU

MUU Risk / Return Rank: 99
MUU Sharpe Ratio Rank: 100
MUU Sortino Ratio Rank: 97
MUU Omega Ratio Rank: 97
MUU Calmar Ratio Rank: 100
MUU Martin Ratio Rank: 99

KORU

KORU Risk / Return Rank: 91
KORU Sharpe Ratio Rank: 96
KORU Sortino Ratio Rank: 82
KORU Omega Ratio Rank: 87
KORU Calmar Ratio Rank: 96
KORU Martin Ratio Rank: 94

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.

MUU vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Direxion Daily MU Bull 2X Shares (MUU) 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.

	MUU	KORU	Difference
Sharpe ratio: Return per unit of total volatility	29.47	3.18	+26.29
Sortino ratio: Return per unit of downside risk	5.90	2.90	+3.00
Omega ratio: Gain probability vs. loss probability	1.73	1.42	+0.31
Calmar ratio: Return relative to maximum drawdown	81.19	7.15	+74.04
Martin ratio: Return relative to average drawdown	269.76	19.75	+250.01

MUU vs. KORU - Sharpe Ratio Comparison

The current MUU Sharpe Ratio is 29.47, which is higher than the KORU Sharpe Ratio of 3.18. The chart below compares the historical Sharpe Ratios of MUU and KORU, 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

MUU vs. KORU - Drawdown Comparison

The maximum MUU drawdown since its inception was -75.07%, smaller than the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for MUU and KORU.

Drawdown Indicators

	MUU	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-75.07%	-95.79%	+20.72%
Max Drawdown (1Y) Largest decline over 1 year	-52.72%	-66.86%	+14.14%
Max Drawdown (3Y) Largest decline over 3 years	—	-73.34%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-92.74%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-95.79%	—
Current Drawdown Current decline from peak	-30.27%	-61.95%	+31.68%
Average Drawdown Average peak-to-trough decline	-23.44%	-57.39%	+33.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	16.68%	24.17%	-7.49%

Volatility

MUU vs. KORU - Volatility Comparison

The current volatility for Direxion Daily MU Bull 2X Shares (MUU) is 67.96%, while Direxion Daily MSCI South Korea Bull 3X Shares (KORU) has a volatility of 73.09%. This indicates that MUU 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.

Volatility by Period

	MUU	KORU	Difference
Volatility (1M) Calculated over the trailing 1-month period	67.96%	73.09%	-5.13%
Volatility (6M) Calculated over the trailing 6-month period	115.39%	146.34%	-30.95%
Volatility (1Y) Calculated over the trailing 1-year period	145.68%	150.45%	-4.77%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	138.08%	93.71%	+44.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	138.08%	84.20%	+53.88%

MUU vs. KORU - Expense Ratio Comparison

MUU has a 1.01% expense ratio, which is lower than KORU's 1.32% expense ratio.

Dividends

MUU vs. KORU - Dividend Comparison

MUU's dividend yield for the trailing twelve months is around 0.64%, more than KORU's 0.33% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
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%
MUU Direxion Daily MU Bull 2X Shares	0.64%	4.27%	0.31%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MUU and KORU in my portfolio?

MUU and KORU have a correlation of 0.63, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MUU or KORU?

KORU has higher volatility (73.09%) compared to MUU (67.96%). In terms of maximum drawdown, MUU dropped -75.07% vs KORU's -95.79%.

Which ETF is better, MUU or KORU?

On 1-year performance, MUU leads with 3397.63% vs 474.18% for KORU. On fees, MUU is cheaper at 1.01% per year. On volatility, MUU has been the lower-risk option at 67.96%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MUU or KORU?

Over the 1-year period, MUU has performed better with a 3397.63% return vs 474.18%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MUU or KORU?

MUU is cheaper with a 1.01% expense ratio, compared with 1.32% for KORU.

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

MUU has the higher dividend yield at 0.64%, compared with 0.33% for KORU.

What is the main difference between MUU and KORU?

MUU is categorized as Leveraged Equities, while KORU is South Korea Equities. MUU tracks Micron Technology, Inc. (200% Daily), while KORU tracks MSCI Korea 25/50 Index. Their fees differ too: 1.01% for MUU and 1.32% for KORU.

Which has better risk-adjusted returns?

MUU currently has the higher Sharpe Ratio (29.47 vs 3.18), 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.