AIBU vs. KORU

Last updated Jun 4, 2026

AIBU (Direxion Daily AI and Big Data Bull 2X Shares) and KORU (Direxion Daily South Korea Bull 3X Shares) are both Leveraged Equities funds from Direxion - AIBU tracks the Solactive US AI & Big Data Index while KORU tracks the MSCI Korea 25-50 Index. Both are passively managed. Over the past year, AIBU returned 109.46% vs 2160.10% for KORU. A 0.56 correlation means they provide meaningful diversification when combined. AIBU charges 0.96%/yr vs 1.29%/yr for KORU.

Performance

AIBU vs. KORU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Direxion Daily AI and Big Data Bull 2X Shares (AIBU) 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, AIBU achieves a 48.05% return, which is significantly lower than KORU's 559.14% return.

AIBU

• 1D: -4.35%
• 1M: 29.93%
• YTD: 48.05%
• 6M: 34.98%
• 1Y: 109.46%
• 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)

AIBU vs. KORU - Yearly Performance Comparison

	2026 (YTD)	2025	2024
AIBU Direxion Daily AI and Big Data Bull 2X Shares	48.05%	42.25%	38.36%
KORU Direxion Daily South Korea Bull 3X Shares	559.14%	432.73%	-60.74%

Correlation

The correlation between AIBU and KORU is 0.59, 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	0.59
Correlation (All Time) Calculated using the full available price history since May 16, 2024	0.56

The correlation between AIBU and KORU has been stable across timeframes, ranging from 0.56 to 0.59 - a consistent structural relationship.

AIBU vs. KORU - Sectors Allocation Comparison

Sectors	AIBU	KORU
Technology	26.0%	52.3%
Communication Services	3.6%	2.9%
Consumer Cyclical	2.3%	5.8%
Healthcare	0.2%	3.5%
Industrials	0.1%	20.4%
Basic Materials	-	2.0%
Consumer Defensive	-	1.8%
Energy	-	1.4%
Financial Services	-	16.7%
Real Estate	-	-
Utilities	-	0.4%

Return for Risk

AIBU vs. KORU — Risk / Return Rank

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

AIBU

AIBU Risk / Return Rank: 53
AIBU Sharpe Ratio Rank: 70
AIBU Sortino Ratio Rank: 56
AIBU Omega Ratio Rank: 55
AIBU Calmar Ratio Rank: 46
AIBU Martin Ratio Rank: 36

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.

AIBU vs. KORU - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Direxion Daily AI and Big Data Bull 2X Shares (AIBU) 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.

	AIBU	KORU	Difference
Sharpe ratio: Return per unit of total volatility	2.31	17.63	-15.32
Sortino ratio: Return per unit of downside risk	2.67	5.20	-2.53
Omega ratio: Gain probability vs. loss probability	1.34	1.72	-0.38
Calmar ratio: Return relative to maximum drawdown	2.26	35.65	-33.39
Martin ratio: Return relative to average drawdown	5.52	112.99	-107.47
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AIBU vs. KORU - Sharpe Ratio Comparison

The current AIBU Sharpe Ratio is 2.31, which is lower than the KORU Sharpe Ratio of 17.63. The chart below compares the historical Sharpe Ratios of AIBU 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

	AIBU	KORU	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.31	17.63	-15.32
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	1.25	0.13	+1.12

Drawdowns

AIBU vs. KORU - Drawdown Comparison

The maximum AIBU drawdown since its inception was -51.17%, smaller than the maximum KORU drawdown of -95.79%. Use the drawdown chart below to compare losses from any high point for AIBU and KORU.

Drawdown Indicators

	AIBU	KORU	Difference
Max Drawdown Largest peak-to-trough decline	-51.17%	-95.79%	+44.62%
Max Drawdown (1Y) Largest decline over 1 year	-48.71%	-61.39%	+12.68%
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	-4.35%	-5.39%	+1.04%
Average Drawdown Average peak-to-trough decline	-13.76%	-57.53%	+43.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	19.91%	19.33%	+0.58%

Volatility

AIBU vs. KORU - Volatility Comparison

The current volatility for Direxion Daily AI and Big Data Bull 2X Shares (AIBU) is 14.56%, while Direxion Daily South Korea Bull 3X Shares (KORU) has a volatility of 60.18%. This indicates that AIBU 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

	AIBU	KORU	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.56%	60.18%	-45.62%
Volatility (6M) Calculated over the trailing 6-month period	36.96%	110.71%	-73.75%
Volatility (1Y) Calculated over the trailing 1-year period	47.71%	124.15%	-76.44%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	55.37%	85.11%	-29.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	55.37%	79.91%	-24.54%

AIBU vs. KORU - Expense Ratio Comparison

AIBU has a 0.96% expense ratio, which is lower than KORU's 1.29% expense ratio.

Dividends

AIBU vs. KORU - Dividend Comparison

AIBU's dividend yield for the trailing twelve months is around 1.51%, more than KORU's 0.14% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017
AIBU Direxion Daily AI and Big Data Bull 2X Shares	1.51%	2.27%	1.33%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
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%

Frequently Asked Questions

Can I hold both AIBU and KORU in my portfolio?

AIBU and KORU have a correlation of 0.59, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AIBU or KORU?

KORU has higher volatility (60.18%) compared to AIBU (14.56%). In terms of maximum drawdown, AIBU dropped -51.17% vs KORU's -95.79%.

Which ETF is better, AIBU or KORU?

On 1-year performance, KORU leads with 2160.10% vs 109.46% for AIBU. On fees, AIBU is cheaper at 0.96% per year. On volatility, AIBU has been the lower-risk option at 14.56%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, AIBU or KORU?

Over the 1-year period, KORU has performed better with a 2160.10% return vs 109.46%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, AIBU or KORU?

AIBU is cheaper with a 0.96% expense ratio, compared with 1.29% for KORU.

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

AIBU has the higher dividend yield at 1.51%, compared with 0.14% for KORU.

What is the main difference between AIBU and KORU?

AIBU tracks Solactive US AI & Big Data Index, while KORU tracks MSCI Korea 25-50 Index. Their fees differ too: 0.96% for AIBU and 1.29% for KORU.

Which has better risk-adjusted returns?

KORU currently has the higher Sharpe Ratio (17.63 vs 2.31), 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.