AIBD vs. EPAI

Last updated Jul 17, 2026

AIBD (Direxion Daily AI and Big Data Bear 2X Shares) and EPAI (Harbor AI Inflection Strategy ETF) are both exchange-traded funds - AIBD is a Inverse Equities fund tracking the Solactive US AI & Big Data Index, while EPAI is a Technology Equities fund actively managed by Harbor. AIBD is passively managed, while EPAI is actively managed. At a correlation of -0.66, they often move in opposite directions. AIBD charges 1.05%/yr vs 0.88%/yr for EPAI.

Performance

AIBD vs. EPAI - Performance Comparison

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

Returns By Period

In the year-to-date period, AIBD achieves a -26.00% return, which is significantly lower than EPAI's 35.72% return.

AIBD

• 1D: 5.39%
• 1M: 9.76%
• 6M: -24.63%
• YTD: -26.00%
• 1Y: -39.60%
• 3Y*: —
• 5Y*: —
• 10Y*: —

EPAI

• 1D: -2.76%
• 1M: -7.50%
• 6M: 23.11%
• YTD: 35.72%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AIBD vs. EPAI - Yearly Performance Comparison

	2026 (YTD)	2025
AIBD Direxion Daily AI and Big Data Bear 2X Shares	-26.00%	-5.58%
EPAI Harbor AI Inflection Strategy ETF	35.72%	-0.33%

Correlation

The correlation between AIBD and EPAI is -0.66, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.

	Correlation
Correlation (All Time) Calculated using the full available price history since Dec 18, 2025	-0.66

Return for Risk

AIBD vs. EPAI — Risk / Return Rank

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

AIBD

AIBD Risk / Return Rank: 3
AIBD Sharpe Ratio Rank: 3
AIBD Sortino Ratio Rank: 4
AIBD Omega Ratio Rank: 4
AIBD Calmar Ratio Rank: 4
AIBD Martin Ratio Rank: 2

EPAI

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

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.

AIBD vs. EPAI - Risk-Adjusted Trends Comparison

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

	AIBD	EPAI	Difference
Sharpe ratio: Return per unit of total volatility	-0.72	—	—
Sortino ratio: Return per unit of downside risk	-0.91	—	—
Omega ratio: Gain probability vs. loss probability	0.90	—	—
Calmar ratio: Return relative to maximum drawdown	-0.68	—	—
Martin ratio: Return relative to average drawdown	-1.41	—	—

Drawdowns

AIBD vs. EPAI - Drawdown Comparison

The maximum AIBD drawdown since its inception was -82.11%, which is greater than EPAI's maximum drawdown of -14.76%. Use the drawdown chart below to compare losses from any high point for AIBD and EPAI.

Drawdown Indicators

	AIBD	EPAI	Difference
Max Drawdown Largest peak-to-trough decline	-82.11%	-14.76%	-67.35%
Max Drawdown (1Y) Largest decline over 1 year	-58.75%	—	—
Current Drawdown Current decline from peak	-77.48%	-14.76%	-62.72%
Average Drawdown Average peak-to-trough decline	-49.73%	-3.30%	-46.43%
Ulcer Index Depth and duration of drawdowns from previous peaks	28.63%	—	—

Volatility

Volatility by Period

	AIBD	EPAI	Difference
Volatility (1M) Calculated over the trailing 1-month period	15.87%	—	—
Volatility (6M) Calculated over the trailing 6-month period	42.24%	—	—
Volatility (1Y) Calculated over the trailing 1-year period	54.86%	35.83%	+19.03%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	57.20%	35.83%	+21.37%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	57.20%	35.83%	+21.37%

AIBD vs. EPAI - Expense Ratio Comparison

AIBD has a 1.05% expense ratio, which is higher than EPAI's 0.88% expense ratio.

Dividends

AIBD vs. EPAI - Dividend Comparison

AIBD's dividend yield for the trailing twelve months is around 3.41%, while EPAI has not paid dividends to shareholders.

Position	TTM	2025	2024
AIBD Direxion Daily AI and Big Data Bear 2X Shares	3.41%	4.37%	3.58%
EPAI Harbor AI Inflection Strategy ETF	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both AIBD and EPAI in my portfolio?

AIBD and EPAI have a correlation of -0.66, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, AIBD or EPAI?

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, AIBD or EPAI?

EPAI is cheaper with a 0.88% expense ratio, compared with 1.05% for AIBD.

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

AIBD has the higher dividend yield at 3.41%, compared with 0.00% for EPAI.

What is the main difference between AIBD and EPAI?

AIBD is categorized as Inverse Equities, while EPAI is Technology Equities. They also come from different issuers: Direxion and Harbor. Their fees differ too: 1.05% for AIBD and 0.88% for EPAI.