HACK vs. FEPI

Last updated Apr 1, 2026

Compare and contrast key facts about ETFMG Prime Cyber Security ETF (HACK) and REX FANG & Innovation Equity Premium Income ETF (FEPI).

HACK and FEPI are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. HACK is a passively managed fund by ETFMG that tracks the performance of the Prime Cyber Defense Index. It was launched on Nov 11, 2014. FEPI is an actively managed fund by REX. It was launched on Oct 11, 2023.

Performance

HACK vs. FEPI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in ETFMG Prime Cyber Security ETF (HACK) and REX FANG & Innovation Equity Premium Income ETF (FEPI). The values are adjusted to include any dividend payments, if applicable.

HACK vs. FEPI - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023
HACK ETFMG Prime Cyber Security ETF	-6.57%	7.97%	23.49%	13.05%
FEPI REX FANG & Innovation Equity Premium Income ETF	-7.19%	18.33%	15.69%	11.70%

Returns By Period

In the year-to-date period, HACK achieves a -6.57% return, which is significantly higher than FEPI's -7.19% return.

HACK

• 1D: 3.66%
• 1M: 2.64%
• YTD: -6.57%
• 6M: -13.43%
• 1Y: 4.66%
• 3Y*: 16.40%
• 5Y*: 6.37%
• 10Y*: 12.57%

FEPI

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

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

HACK vs. FEPI - Expense Ratio Comparison

HACK has a 0.60% expense ratio, which is lower than FEPI's 0.65% expense ratio.

FEPI

REX FANG & Innovation Equity Premium Income ETF

HACK

ETFMG Prime Cyber Security ETF

Return for Risk

HACK vs. FEPI — Risk / Return Rank

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

HACK

HACK Risk / Return Rank: 17
HACK Sharpe Ratio Rank: 17
HACK Sortino Ratio Rank: 19
HACK Omega Ratio Rank: 18
HACK Calmar Ratio Rank: 16
HACK Martin Ratio Rank: 16

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

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.

HACK vs. FEPI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for ETFMG Prime Cyber Security ETF (HACK) and REX FANG & Innovation Equity Premium Income ETF (FEPI). 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.

	HACK	FEPI	Difference
Sharpe ratio Return per unit of total volatility	0.18	1.05	-0.87
Sortino ratio Return per unit of downside risk	0.44	1.56	-1.13
Omega ratio Gain probability vs. loss probability	1.06	1.23	-0.17
Calmar ratio Return relative to maximum drawdown	0.18	1.74	-1.56
Martin ratio Return relative to average drawdown	0.49	5.57	-5.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

HACK vs. FEPI - Sharpe Ratio Comparison

The current HACK Sharpe Ratio is 0.18, which is lower than the FEPI Sharpe Ratio of 1.05. The chart below compares the historical Sharpe Ratios of HACK and FEPI, 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

	HACK	FEPI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.18	1.05	-0.87
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.27	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.55	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.46	0.79	-0.33

Correlation

The correlation between HACK and FEPI is 0.71, 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

HACK vs. FEPI - Dividend Comparison

HACK's dividend yield for the trailing twelve months is around 0.08%, less than FEPI's 28.60% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
HACK ETFMG Prime Cyber Security ETF	0.08%	0.07%	0.14%	0.20%	0.24%	0.26%	1.11%	0.14%	0.09%	0.01%	1.23%
FEPI REX FANG & Innovation Equity Premium Income ETF	28.60%	25.48%	27.18%	4.21%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

HACK vs. FEPI - Drawdown Comparison

The maximum HACK drawdown since its inception was -42.68%, which is greater than FEPI's maximum drawdown of -23.56%. Use the drawdown chart below to compare losses from any high point for HACK and FEPI.

Drawdown Indicators

	HACK	FEPI	Difference
Max Drawdown Largest peak-to-trough decline	-42.68%	-23.56%	-19.12%
Max Drawdown (1Y) Largest decline over 1 year	-20.67%	-12.91%	-7.76%
Max Drawdown (5Y) Largest decline over 5 years	-38.68%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-38.68%	—	—
Current Drawdown Current decline from peak	-15.73%	-9.39%	-6.34%
Average Drawdown Average peak-to-trough decline	-11.70%	-3.63%	-8.07%
Ulcer Index Depth and duration of drawdowns from previous peaks	7.75%	4.04%	+3.71%

Volatility

HACK vs. FEPI - Volatility Comparison

ETFMG Prime Cyber Security ETF (HACK) has a higher volatility of 8.05% compared to REX FANG & Innovation Equity Premium Income ETF (FEPI) at 7.49%. This indicates that HACK's price experiences larger fluctuations and is considered to be riskier than FEPI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	HACK	FEPI	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.05%	7.49%	+0.56%
Volatility (6M) Calculated over the trailing 6-month period	17.03%	14.30%	+2.73%
Volatility (1Y) Calculated over the trailing 1-year period	26.02%	21.92%	+4.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	23.31%	19.39%	+3.92%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	22.85%	19.39%	+3.46%