MSTU vs. KORU

Last updated Jun 4, 2026

MSTU (T-Rex 2X Long MSTR Daily Target ETF) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds. MSTU is actively managed, while KORU is passively managed. Over the past year, MSTU returned -95.37% vs 2160.10% for KORU. At a 0.35 correlation, their price movements are largely independent. MSTU charges 1.05%/yr vs 1.29%/yr for KORU.

Performance

MSTU vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in T-Rex 2X Long MSTR Daily Target ETF (MSTU) and Direxion Daily 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, MSTU achieves a -54.27% return, which is significantly lower than KORU's 559.14% return.

MSTU

• 1D: -14.03%
• 1M: -55.66%
• YTD: -54.27%
• 6M: -71.83%
• 1Y: -95.37%
• 3Y*: —
• 5Y*: —
• 10Y*: —

KORU

• 1D: -2.29%
• 1M: 92.47%
• YTD: 559.14%
• 6M: 689.29%
• 1Y: 2,160.10%
• 3Y*: 132.56%
• 5Y*: 23.42%
• 10Y*: 19.62%

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

MSTU vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
MSTU T-Rex 2X Long MSTR Daily Target ETF	-54.27%	-89.07%	197.84%
KORU Direxion Daily South Korea Bull 3X Shares	559.14%	432.73%	-48.36%

Correlation

The correlation between MSTU and KORU is 0.39, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.39
Correlation (All Time) Calculated using the full available price history since Sep 19, 2024	0.35

MSTU vs. KORU - Sectors Allocation Comparison

Sectors	MSTU	KORU
Technology	100.0%	52.3%
Basic Materials	-	2.0%
Communication Services	-	2.9%
Consumer Cyclical	-	5.8%
Consumer Defensive	-	1.8%
Energy	-	1.4%
Financial Services	-	16.7%
Healthcare	-	3.5%
Industrials	-	20.4%
Real Estate	-	-
Utilities	-	0.4%

Return for Risk

MSTU vs. KORU — Risk / Return Rank

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

MSTU

MSTU Risk / Return Rank: 1
MSTU Sharpe Ratio Rank: 3
MSTU Sortino Ratio Rank: 1
MSTU Omega Ratio Rank: 1
MSTU Calmar Ratio Rank: 0
MSTU Martin Ratio Rank: 3

KORU

KORU Risk / Return Rank: 97
KORU Sharpe Ratio Rank: 100
KORU Sortino Ratio Rank: 95
KORU Omega Ratio Rank: 95
KORU Calmar Ratio Rank: 99
KORU Martin Ratio Rank: 99

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.

MSTU vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for T-Rex 2X Long MSTR Daily Target ETF (MSTU) 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.

	MSTU	KORU	Difference
Sharpe ratio: Return per unit of total volatility	-0.69	17.63	-18.32
Sortino ratio: Return per unit of downside risk	-2.12	5.20	-7.32
Omega ratio: Gain probability vs. loss probability	0.78	1.72	-0.95
Calmar ratio: Return relative to maximum drawdown	-0.99	35.65	-36.63
Martin ratio: Return relative to average drawdown	-1.27	112.99	-114.26
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

MSTU vs. KORU - Sharpe Ratio Comparison

The current MSTU Sharpe Ratio is -0.69, which is lower than the KORU Sharpe Ratio of 17.63. The chart below compares the historical Sharpe Ratios of MSTU 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.

Sharpe Ratios by Period

	MSTU	KORU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.69	17.63	-18.32
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	0.28	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.25	—
Sharpe Ratio (All Time) Calculated using the full available price history	-0.40	0.13	-0.53

Drawdowns

MSTU vs. KORU - Drawdown Comparison

The maximum MSTU drawdown since its inception was -98.58%, roughly equal to the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for MSTU and KORU.

Drawdown Indicators

	MSTU	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-98.58%	-95.79%	-2.79%
Max Drawdown (1Y) Largest decline over 1 year	-96.58%	-61.39%	-35.19%
Max Drawdown (3Y) Largest decline over 3 years	—	-73.71%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-93.35%	—
Max Drawdown (10Y) Largest decline over 10 years	—	-95.79%	—
Current Drawdown Current decline from peak	-98.52%	-5.39%	-93.13%
Average Drawdown Average peak-to-trough decline	-71.94%	-57.53%	-14.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	75.17%	19.33%	+55.84%

Volatility

MSTU vs. KORU - Volatility Comparison

The current volatility for T-Rex 2X Long MSTR Daily Target ETF (MSTU) is 39.06%, while Direxion Daily South Korea Bull 3X Shares (KORU) has a volatility of 60.18%. This indicates that MSTU 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

	MSTU	KORU	Difference
Volatility (1M) Calculated over the trailing 1-month period	39.06%	60.18%	-21.12%
Volatility (6M) Calculated over the trailing 6-month period	111.87%	110.71%	+1.16%
Volatility (1Y) Calculated over the trailing 1-year period	138.62%	124.15%	+14.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	169.06%	85.11%	+83.95%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	169.06%	79.91%	+89.15%

MSTU vs. KORU - Expense Ratio Comparison

MSTU has a 1.05% expense ratio, which is lower than KORU's 1.29% expense ratio.

Dividends

MSTU vs. KORU - Dividend Comparison

MSTU has not paid dividends to shareholders, while KORU's dividend yield for the trailing twelve months is around 0.14%.

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%
MSTU T-Rex 2X Long MSTR Daily Target ETF	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MSTU and KORU in my portfolio?

MSTU and KORU have a correlation of 0.39, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, MSTU or KORU?

KORU has higher volatility (60.18%) compared to MSTU (39.06%). In terms of maximum drawdown, MSTU dropped -98.58% vs KORU's -95.79%.

Which ETF is better, MSTU or KORU?

On 1-year performance, KORU leads with 2160.10% vs -95.37% for MSTU. On fees, MSTU is cheaper at 1.05% per year. On volatility, MSTU has been the lower-risk option at 39.06%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, MSTU or KORU?

Over the 1-year period, KORU has performed better with a 2160.10% return vs -95.37%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, MSTU or KORU?

MSTU is cheaper with a 1.05% expense ratio, compared with 1.29% for KORU.

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

KORU has the higher dividend yield at 0.14%, compared with 0.00% for MSTU.

What is the main difference between MSTU and KORU?

They also come from different issuers: T-Rex and Direxion. Their fees differ too: 1.05% for MSTU and 1.29% for KORU.

Which has better risk-adjusted returns?

KORU currently has the higher Sharpe Ratio (17.63 vs -0.69), 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.