MSII vs. KORU

Last updated Jun 4, 2026

MSII (REX MSTR Growth & Income ETF) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds. MSII is actively managed, while KORU is passively managed. At a 0.39 correlation, their price movements are largely independent. MSII charges 0.99%/yr vs 1.29%/yr for KORU.

Performance

MSII vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX MSTR Growth & Income ETF (MSII) 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, MSII achieves a -21.10% return, which is significantly lower than KORU's 559.14% return.

MSII

• 1D: -8.30%
• 1M: -32.66%
• YTD: -21.10%
• 6M: -34.47%
• 1Y: —
• 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)

MSII vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025
MSII REX MSTR Growth & Income ETF	-21.10%	-60.25%
KORU Direxion Daily South Korea Bull 3X Shares	559.14%	212.96%

Correlation

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

	Correlation
Correlation (All Time) Calculated using the full available price history since Jun 5, 2025	0.39

Return for Risk

MSII vs. KORU — Risk / Return Rank

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

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.

MSII vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX MSTR Growth & Income ETF (MSII) 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Sharpe Ratios by Period

	MSII	KORU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	17.63	—
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	-0.97	0.13	-1.10

Drawdowns

MSII vs. KORU - Drawdown Comparison

The maximum MSII drawdown since its inception was -78.73%, smaller than the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for MSII and KORU.

Drawdown Indicators

	MSII	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-78.73%	-95.79%	+17.06%
Max Drawdown (1Y) Largest decline over 1 year	—	-61.39%	—
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	-74.38%	-5.39%	-68.99%
Average Drawdown Average peak-to-trough decline	-46.16%	-57.53%	+11.37%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	19.33%	—

Volatility

Volatility by Period

	MSII	KORU	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	60.18%	—
Volatility (6M) Calculated over the trailing 6-month period	—	110.71%	—
Volatility (1Y) Calculated over the trailing 1-year period	71.20%	124.15%	-52.95%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	71.20%	85.11%	-13.91%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	71.20%	79.91%	-8.71%

MSII vs. KORU - Expense Ratio Comparison

MSII has a 0.99% expense ratio, which is lower than KORU's 1.29% expense ratio.

Dividends

MSII vs. KORU - Dividend Comparison

MSII's dividend yield for the trailing twelve months is around 90.41%, 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%
MSII REX MSTR Growth & Income ETF	90.41%	48.93%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both MSII and KORU in my portfolio?

MSII 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 ETF is better, MSII or KORU?

On fees, MSII is cheaper at 0.99% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, MSII or KORU?

MSII is cheaper with a 0.99% expense ratio, compared with 1.29% for KORU.

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

MSII has the higher dividend yield at 90.41%, compared with 0.14% for KORU.

What is the main difference between MSII and KORU?

They also come from different issuers: REX and Direxion. Their fees differ too: 0.99% for MSII and 1.29% for KORU.