FEPI vs. MSTZ

Last updated Jun 4, 2026

FEPI (REX FANG & Innovation Equity Premium Income ETF) and MSTZ (T-REX 2X Inverse MSTR Daily Target ETF) are both exchange-traded funds - FEPI is a Technology Equities fund actively managed by REX, while MSTZ is a Inverse Equities fund actively managed by REX. Both are actively managed. Over the past year, FEPI returned 33.15% vs 94.24% for MSTZ. At a correlation of -0.53, they often move in opposite directions. FEPI charges 0.65%/yr vs 1.05%/yr for MSTZ.

Performance

FEPI vs. MSTZ - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX FANG & Innovation Equity Premium Income ETF (FEPI) and T-REX 2X Inverse MSTR Daily Target ETF (MSTZ). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, FEPI achieves a 10.42% return, which is significantly higher than MSTZ's -46.88% return.

FEPI

• 1D: -0.75%
• 1M: 5.91%
• YTD: 10.42%
• 6M: 11.37%
• 1Y: 33.15%
• 3Y*: —
• 5Y*: —
• 10Y*: —

MSTZ

• 1D: 14.02%
• 1M: 86.49%
• YTD: -46.88%
• 6M: -23.06%
• 1Y: 94.24%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

FEPI vs. MSTZ - Yearly Performance Comparison

	2026 (YTD)	2025	2024
FEPI REX FANG & Innovation Equity Premium Income ETF	10.42%	18.33%	7.81%
MSTZ T-REX 2X Inverse MSTR Daily Target ETF	-46.88%	-38.95%	-94.26%

Correlation

The correlation between FEPI and MSTZ is -0.57, 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 (1Y) Calculated over the trailing 1-year period	-0.57
Correlation (All Time) Calculated using the full available price history since Sep 19, 2024	-0.53

The correlation between FEPI and MSTZ has been stable across timeframes, ranging from -0.57 to -0.53 - a consistent structural relationship.

Return for Risk

FEPI vs. MSTZ — Risk / Return Rank

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

FEPI

FEPI Risk / Return Rank: 54
FEPI Sharpe Ratio Rank: 58
FEPI Sortino Ratio Rank: 54
FEPI Omega Ratio Rank: 58
FEPI Calmar Ratio Rank: 51
FEPI Martin Ratio Rank: 51

MSTZ

MSTZ Risk / Return Rank: 26
MSTZ Sharpe Ratio Rank: 20
MSTZ Sortino Ratio Rank: 32
MSTZ Omega Ratio Rank: 34
MSTZ Calmar Ratio Rank: 24
MSTZ Martin Ratio Rank: 20

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. MSTZ - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX FANG & Innovation Equity Premium Income ETF (FEPI) and T-REX 2X Inverse MSTR Daily Target ETF (MSTZ). 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	MSTZ	Difference
Sharpe ratio: Return per unit of total volatility	2.02	0.68	+1.34
Sortino ratio: Return per unit of downside risk	2.67	1.74	+0.93
Omega ratio: Gain probability vs. loss probability	1.36	1.23	+0.14
Calmar ratio: Return relative to maximum drawdown	2.58	1.12	+1.46
Martin ratio: Return relative to average drawdown	8.66	2.35	+6.31
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. MSTZ - Sharpe Ratio Comparison

The current FEPI Sharpe Ratio is 2.02, which is higher than the MSTZ Sharpe Ratio of 0.68. The chart below compares the historical Sharpe Ratios of FEPI and MSTZ, 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

	FEPI	MSTZ	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.02	0.68	+1.34
Sharpe Ratio (All Time) Calculated using the full available price history	1.16	-0.53	+1.69

Drawdowns

FEPI vs. MSTZ - Drawdown Comparison

The maximum FEPI drawdown since its inception was -23.56%, smaller than the maximum MSTZ drawdown of -99.36%. Use the drawdown chart below to compare losses from any high point for FEPI and MSTZ.

Drawdown Indicators

	FEPI	MSTZ	Difference
Max Drawdown Largest peak-to-trough decline	-23.56%	-99.36%	+75.80%
Max Drawdown (1Y) Largest decline over 1 year	-12.91%	-84.89%	+71.98%
Current Drawdown Current decline from peak	-1.45%	-98.14%	+96.69%
Average Drawdown Average peak-to-trough decline	-3.51%	-94.39%	+90.88%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.84%	40.30%	-36.46%

Volatility

FEPI vs. MSTZ - Volatility Comparison

The current volatility for REX FANG & Innovation Equity Premium Income ETF (FEPI) is 3.31%, while T-REX 2X Inverse MSTR Daily Target ETF (MSTZ) has a volatility of 37.49%. This indicates that FEPI experiences smaller price fluctuations and is considered to be less risky than MSTZ based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	FEPI	MSTZ	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.31%	37.49%	-34.18%
Volatility (6M) Calculated over the trailing 6-month period	12.58%	125.82%	-113.24%
Volatility (1Y) Calculated over the trailing 1-year period	16.54%	140.34%	-123.80%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	19.02%	170.37%	-151.35%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	19.02%	170.37%	-151.35%

FEPI vs. MSTZ - Expense Ratio Comparison

FEPI has a 0.65% expense ratio, which is lower than MSTZ's 1.05% expense ratio.

Dividends

FEPI vs. MSTZ - Dividend Comparison

FEPI's dividend yield for the trailing twelve months is around 23.92%, while MSTZ has not paid dividends to shareholders.

Position	TTM	2025	2024	2023
FEPI REX FANG & Innovation Equity Premium Income ETF	23.92%	25.48%	27.18%	4.21%
MSTZ T-REX 2X Inverse MSTR Daily Target ETF	0.00%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both FEPI and MSTZ in my portfolio?

FEPI and MSTZ have a correlation of -0.57, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, FEPI or MSTZ?

MSTZ has higher volatility (37.49%) compared to FEPI (3.31%). In terms of maximum drawdown, FEPI dropped -23.56% vs MSTZ's -99.36%.

Which ETF is better, FEPI or MSTZ?

On 1-year performance, MSTZ leads with 94.24% vs 33.15% for FEPI. On fees, FEPI is cheaper at 0.65% per year. On volatility, FEPI has been the lower-risk option at 3.31%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, FEPI or MSTZ?

Over the 1-year period, MSTZ has performed better with a 94.24% return vs 33.15%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, FEPI or MSTZ?

FEPI is cheaper with a 0.65% expense ratio, compared with 1.05% for MSTZ.

Which ETF pays a higher dividend yield, FEPI or MSTZ?

FEPI has the higher dividend yield at 23.92%, compared with 0.00% for MSTZ.

What is the main difference between FEPI and MSTZ?

FEPI is categorized as Technology Equities, while MSTZ is Inverse Equities. Their fees differ too: 0.65% for FEPI and 1.05% for MSTZ.

Which has better risk-adjusted returns?

FEPI currently has the higher Sharpe Ratio (2.02 vs 0.68), 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.