EPAI vs. AIBU

Last updated Jun 24, 2026

EPAI (Harbor AI Inflection Strategy ETF) and AIBU (Direxion Daily AI and Big Data Bull 2X Shares) are both exchange-traded funds - EPAI is a Technology Equities fund actively managed by Harbor, while AIBU is a Leveraged Equities fund tracking the Solactive US AI & Big Data Index. EPAI is actively managed, while AIBU is passively managed. A 0.64 correlation means they provide meaningful diversification when combined. EPAI charges 0.88%/yr vs 0.96%/yr for AIBU.

Performance

EPAI vs. AIBU - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Harbor AI Inflection Strategy ETF (EPAI) and Direxion Daily AI and Big Data Bull 2X Shares (AIBU). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, EPAI achieves a 48.89% return, which is significantly higher than AIBU's 24.78% return.

EPAI

• 1D: -4.72%
• 1M: 7.32%
• YTD: 48.89%
• 6M: 46.39%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

AIBU

• 1D: -4.43%
• 1M: -3.16%
• YTD: 24.78%
• 6M: 21.08%
• 1Y: 67.41%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

EPAI vs. AIBU - Yearly Performance Comparison

	2026 (YTD)	2025
EPAI Harbor AI Inflection Strategy ETF	48.89%	-0.33%
AIBU Direxion Daily AI and Big Data Bull 2X Shares	24.78%	7.71%

Correlation

The correlation between EPAI and AIBU is 0.64, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Dec 18, 2025	0.64

Return for Risk

EPAI vs. AIBU — Risk / Return Rank

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

EPAI

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

AIBU

AIBU Risk / Return Rank: 34
AIBU Sharpe Ratio Rank: 40
AIBU Sortino Ratio Rank: 38
AIBU Omega Ratio Rank: 37
AIBU Calmar Ratio Rank: 30
AIBU Martin Ratio Rank: 26

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.

EPAI vs. AIBU - Risk-Adjusted Trends Comparison

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

	EPAI	AIBU	Difference
Sharpe ratio: Return per unit of total volatility	—	1.35	—
Sortino ratio: Return per unit of downside risk	—	1.84	—
Omega ratio: Gain probability vs. loss probability	—	1.23	—
Calmar ratio: Return relative to maximum drawdown	—	1.39	—
Martin ratio: Return relative to average drawdown	—	3.34	—

Drawdowns

EPAI vs. AIBU - Drawdown Comparison

The maximum EPAI drawdown since its inception was -12.31%, smaller than the maximum AIBU drawdown of -51.17%. Use the drawdown chart below to compare losses from any high point for EPAI and AIBU.

Drawdown Indicators

	EPAI	AIBU	Difference
Max Drawdown Largest peak-to-trough decline	-12.31%	-51.17%	+38.86%
Max Drawdown (1Y) Largest decline over 1 year	—	-48.71%	—
Current Drawdown Current decline from peak	-4.72%	-19.38%	+14.66%
Average Drawdown Average peak-to-trough decline	-2.65%	-13.79%	+11.14%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	20.26%	—

Volatility

Volatility by Period

	EPAI	AIBU	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	21.15%	—
Volatility (6M) Calculated over the trailing 6-month period	—	39.22%	—
Volatility (1Y) Calculated over the trailing 1-year period	33.26%	50.36%	-17.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	33.26%	55.97%	-22.71%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	33.26%	55.97%	-22.71%

EPAI vs. AIBU - Expense Ratio Comparison

EPAI has a 0.88% expense ratio, which is lower than AIBU's 0.96% expense ratio.

Dividends

EPAI vs. AIBU - Dividend Comparison

EPAI has not paid dividends to shareholders, while AIBU's dividend yield for the trailing twelve months is around 1.79%.

Position	TTM	2025	2024
AIBU Direxion Daily AI and Big Data Bull 2X Shares	1.79%	2.27%	1.33%
EPAI Harbor AI Inflection Strategy ETF	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both EPAI and AIBU in my portfolio?

EPAI and AIBU have a correlation of 0.64, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, EPAI or AIBU?

On fees, EPAI is cheaper at 0.88% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, EPAI or AIBU?

EPAI is cheaper with a 0.88% expense ratio, compared with 0.96% for AIBU.

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

AIBU has the higher dividend yield at 1.79%, compared with 0.00% for EPAI.

What is the main difference between EPAI and AIBU?

EPAI is categorized as Technology Equities, while AIBU is Leveraged Equities. They also come from different issuers: Harbor and Direxion. Their fees differ too: 0.88% for EPAI and 0.96% for AIBU.