TSII vs. KORU

Last updated Jun 4, 2026

TSII (REX TSLA Growth & Income ETF) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds. TSII is actively managed, while KORU is passively managed. At a 0.37 correlation, their price movements are largely independent. TSII charges 0.99%/yr vs 1.29%/yr for KORU.

Performance

TSII vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX TSLA Growth & Income ETF (TSII) 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, TSII achieves a -6.73% return, which is significantly lower than KORU's 559.14% return.

TSII

• 1D: 0.32%
• 1M: 6.19%
• YTD: -6.73%
• 6M: -7.31%
• 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)

TSII vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025
TSII REX TSLA Growth & Income ETF	-6.73%	43.72%
KORU Direxion Daily South Korea Bull 3X Shares	559.14%	212.96%

Correlation

The correlation between TSII and KORU is 0.37, 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	0.37

Return for Risk

TSII 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.

TSII vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX TSLA Growth & Income ETF (TSII) 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

	TSII	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	0.75	0.13	+0.62

Drawdowns

TSII vs. KORU - Drawdown Comparison

The maximum TSII drawdown since its inception was -29.03%, smaller than the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for TSII and KORU.

Drawdown Indicators

	TSII	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-29.03%	-95.79%	+66.76%
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	-14.76%	-5.39%	-9.37%
Average Drawdown Average peak-to-trough decline	-9.31%	-57.53%	+48.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	19.33%	—

Volatility

Volatility by Period

	TSII	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	46.04%	124.15%	-78.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	46.04%	85.11%	-39.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	46.04%	79.91%	-33.87%

TSII vs. KORU - Expense Ratio Comparison

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

Dividends

TSII vs. KORU - Dividend Comparison

TSII's dividend yield for the trailing twelve months is around 70.30%, 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%
TSII REX TSLA Growth & Income ETF	70.30%	32.17%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both TSII and KORU in my portfolio?

TSII and KORU have a correlation of 0.37, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, TSII or KORU?

On fees, TSII 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, TSII or KORU?

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

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

TSII has the higher dividend yield at 70.30%, compared with 0.14% for KORU.

What is the main difference between TSII and KORU?

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