FEPI vs. AIS

Last updated Apr 1, 2026

Compare and contrast key facts about REX FANG & Innovation Equity Premium Income ETF (FEPI) and VistaShares Artificial Intelligence Supercycle ETF (AIS).

FEPI and AIS are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. FEPI is an actively managed fund by REX. It was launched on Oct 11, 2023. AIS is an actively managed fund by VistaShares. It was launched on Dec 3, 2024.

Performance

FEPI vs. AIS - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX FANG & Innovation Equity Premium Income ETF (FEPI) and VistaShares Artificial Intelligence Supercycle ETF (AIS). The values are adjusted to include any dividend payments, if applicable.

FEPI vs. AIS - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FEPI REX FANG & Innovation Equity Premium Income ETF	-7.19%	18.33%	-2.17%
AIS VistaShares Artificial Intelligence Supercycle ETF	10.96%	58.35%	-4.92%

Returns By Period

In the year-to-date period, FEPI achieves a -7.19% return, which is significantly lower than AIS's 10.96% return.

FEPI

• 1D: 4.04%
• 1M: -2.01%
• YTD: -7.19%
• 6M: -3.83%
• 1Y: 22.91%
• 3Y*: —
• 5Y*: —
• 10Y*: —

AIS

• 1D: 5.94%
• 1M: -8.03%
• YTD: 10.96%
• 6M: 19.31%
• 1Y: 94.59%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FEPI vs. AIS - Expense Ratio Comparison

FEPI has a 0.65% expense ratio, which is lower than AIS's 0.75% expense ratio.

AIS

VistaShares Artificial Intelligence Supercycle ETF

FEPI

REX FANG & Innovation Equity Premium Income ETF

Return for Risk

FEPI vs. AIS — Risk / Return Rank

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

FEPI

FEPI Risk / Return Rank: 65
FEPI Sharpe Ratio Rank: 63
FEPI Sortino Ratio Rank: 65
FEPI Omega Ratio Rank: 65
FEPI Calmar Ratio Rank: 72
FEPI Martin Ratio Rank: 61

AIS

AIS Risk / Return Rank: 95
AIS Sharpe Ratio Rank: 96
AIS Sortino Ratio Rank: 95
AIS Omega Ratio Rank: 93
AIS Calmar Ratio Rank: 97
AIS Martin Ratio Rank: 96

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.

FEPI vs. AIS - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX FANG & Innovation Equity Premium Income ETF (FEPI) and VistaShares Artificial Intelligence Supercycle ETF (AIS). 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.

	FEPI	AIS	Difference
Sharpe ratio Return per unit of total volatility	1.05	2.60	-1.55
Sortino ratio Return per unit of downside risk	1.56	3.09	-1.52
Omega ratio Gain probability vs. loss probability	1.23	1.43	-0.21
Calmar ratio Return relative to maximum drawdown	1.74	4.94	-3.20
Martin ratio Return relative to average drawdown	5.57	17.02	-11.45
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

FEPI vs. AIS - Sharpe Ratio Comparison

The current FEPI Sharpe Ratio is 1.05, which is lower than the AIS Sharpe Ratio of 2.60. The chart below compares the historical Sharpe Ratios of FEPI and AIS, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	FEPI	AIS	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.05	2.60	-1.55
Sharpe Ratio (All Time) Calculated using the full available price history	0.79	1.33	-0.54

Correlation

The correlation between FEPI and AIS is 0.80, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

FEPI vs. AIS - Dividend Comparison

FEPI's dividend yield for the trailing twelve months is around 28.60%, while AIS has not paid dividends to shareholders.

	TTM	2025	2024	2023
FEPI REX FANG & Innovation Equity Premium Income ETF	28.60%	25.48%	27.18%	4.21%
AIS VistaShares Artificial Intelligence Supercycle ETF	0.00%	0.00%	0.00%	0.00%

Drawdowns

FEPI vs. AIS - Drawdown Comparison

The maximum FEPI drawdown since its inception was -23.56%, smaller than the maximum AIS drawdown of -32.78%. Use the drawdown chart below to compare losses from any high point for FEPI and AIS.

Drawdown Indicators

	FEPI	AIS	Difference
Max Drawdown Largest peak-to-trough decline	-23.56%	-32.78%	+9.22%
Max Drawdown (1Y) Largest decline over 1 year	-12.91%	-18.75%	+5.84%
Current Drawdown Current decline from peak	-9.39%	-10.75%	+1.36%
Average Drawdown Average peak-to-trough decline	-3.63%	-5.96%	+2.33%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.04%	5.44%	-1.40%

Volatility

FEPI vs. AIS - Volatility Comparison

The current volatility for REX FANG & Innovation Equity Premium Income ETF (FEPI) is 7.49%, while VistaShares Artificial Intelligence Supercycle ETF (AIS) has a volatility of 15.90%. This indicates that FEPI experiences smaller price fluctuations and is considered to be less risky than AIS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FEPI	AIS	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.49%	15.90%	-8.41%
Volatility (6M) Calculated over the trailing 6-month period	14.30%	26.94%	-12.64%
Volatility (1Y) Calculated over the trailing 1-year period	21.92%	36.55%	-14.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.39%	36.11%	-16.72%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.39%	36.11%	-16.72%