SSK vs. CEPI

Last updated Jul 30, 2026

SSK (REX-Osprey SOL + Staking ETF) and CEPI (REX Crypto Equity Premium Income ETF) are both exchange-traded funds - SSK is a Cryptocurrency fund tracking the Solana, while CEPI is a Derivative Income fund actively managed by REX. SSK is passively managed, while CEPI is actively managed. Over the past year, SSK returned -59.24% vs 10.13% for CEPI. Their 0.59 correlation means they have sometimes moved together and sometimes differently. SSK charges 0.75%/yr vs 0.85%/yr for CEPI.

Performance

SSK vs. CEPI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX-Osprey SOL + Staking ETF (SSK) and REX Crypto Equity Premium Income ETF (CEPI). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SSK achieves a -39.90% return, which is significantly lower than CEPI's 9.38% return.

SSK

• 1D: -2.19%
• 1M: -4.01%
• 6M: -40.59%
• YTD: -39.90%
• 1Y: -59.24%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -51.35%

CEPI

• 1D: -4.50%
• 1M: -9.37%
• 6M: 2.42%
• YTD: 9.38%
• 1Y: 10.13%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 7.49%

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

Liquidity Comparison

Position	Avg. Volume Value (2W)	Avg. Volume Value (1M)	Avg. Volume Value (3M)
CEPI REX Crypto Equity Premium Income ETF	$1.36M	$1.31M	$1.60M
SSK REX-Osprey SOL + Staking ETF	$290.96K	$501.02K	$683.74K

SSK vs. CEPI - Yearly Performance Comparison

	2026 (YTD)	2025
SSK REX-Osprey SOL + Staking ETF	-39.90%	-23.21%
CEPI REX Crypto Equity Premium Income ETF	9.38%	3.57%

Correlation

The correlation between SSK and CEPI is 0.60, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	0.60
Correlation (All Time) Calculated using the full available price history since Jul 2, 2025	0.59

The correlation between SSK and CEPI has been stable across timeframes, ranging from 0.59 to 0.60 - a consistent structural relationship.

Return for Risk

SSK vs. CEPI — Risk / Return Rank

Compare historical risk-adjusted metric ranks over the past 12 months.

SSK

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

CEPI

CEPI Risk / Return Rank: 18
CEPI Sharpe Ratio Rank: 18
CEPI Sortino Ratio Rank: 18
CEPI Omega Ratio Rank: 18
CEPI Calmar Ratio Rank: 18
CEPI Martin Ratio Rank: 18

The rank (0–100) uses a weighted average of the Sharpe, Sortino, Omega, Calmar, and Martin percentile ranks for the trailing 12 months. Higher means stronger historical risk-adjusted performance within the peer group.

SSK vs. CEPI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX-Osprey SOL + Staking ETF (SSK) and REX Crypto Equity Premium Income ETF (CEPI). 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.

	SSK	CEPI	Difference
Sharpe ratio: Return per unit of total volatility	-0.83	0.35	-1.18
Sortino ratio: Return per unit of downside risk	-1.24	0.67	-1.91
Omega ratio: Gain probability vs. loss probability	0.87	1.08	-0.22
Calmar ratio: Return relative to maximum drawdown	-0.81	0.45	-1.26
Martin ratio: Return relative to average drawdown	-1.15	1.05	-2.21

SSK vs. CEPI - Sharpe Ratio Comparison

The current SSK Sharpe Ratio is -0.83, which is lower than the CEPI Sharpe Ratio of 0.35. The chart below compares the historical Sharpe Ratios of SSK and CEPI, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

SSK vs. CEPI - Drawdown Comparison

The maximum SSK drawdown since its inception was -73.56%, which is greater than CEPI's maximum drawdown of -29.48%. Use the drawdown chart below to compare losses from any high point for SSK and CEPI.

Drawdown Indicators

	SSK	CEPI	Difference
Max Drawdown Largest peak-to-trough decline	-73.56%	-29.48%	-44.08%
Max Drawdown (1Y) Largest decline over 1 year	-73.56%	-22.47%	-51.09%
Current Drawdown Current decline from peak	-69.54%	-12.22%	-57.32%
Average Drawdown Average peak-to-trough decline	-42.83%	-8.24%	-34.59%
Ulcer Index Depth and duration of drawdowns from previous peaks	51.50%	9.63%	+41.87%

Volatility

SSK vs. CEPI - Volatility Comparison

REX-Osprey SOL + Staking ETF (SSK) has a higher volatility of 12.53% compared to REX Crypto Equity Premium Income ETF (CEPI) at 9.29%. This indicates that SSK's price experiences larger fluctuations and is considered to be riskier than CEPI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSK	CEPI	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.53%	9.29%	+3.24%
Volatility (6M) Calculated over the trailing 6-month period	51.35%	22.90%	+28.45%
Volatility (1Y) Calculated over the trailing 1-year period	71.72%	28.78%	+42.94%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	70.44%	31.56%	+38.88%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	70.44%	31.56%	+38.88%

SSK vs. CEPI - Expense Ratio Comparison

SSK has a 0.75% expense ratio, which is lower than CEPI's 0.85% expense ratio.

Dividends

SSK vs. CEPI - Dividend Comparison

SSK's dividend yield for the trailing twelve months is around 33.89%, less than CEPI's 48.00% yield.

Position	TTM	2025
CEPI REX Crypto Equity Premium Income ETF	48.00%	50.78%
SSK REX-Osprey SOL + Staking ETF	33.89%	3.63%

Frequently Asked Questions

Can I hold both SSK and CEPI in my portfolio?

SSK and CEPI have a correlation of 0.60, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SSK or CEPI?

SSK has higher volatility (12.53%) compared to CEPI (9.29%). In terms of maximum drawdown, SSK dropped -73.56% vs CEPI's -29.48%.

Which ETF is better, SSK or CEPI?

On 1-year performance, CEPI leads with 10.13% vs -59.24% for SSK. On fees, SSK is cheaper at 0.75% per year. On volatility, CEPI has been the lower-risk option at 9.29%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SSK or CEPI?

Over the 1-year period, CEPI has performed better with a 10.13% return vs -59.24%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SSK or CEPI?

SSK is cheaper with a 0.75% expense ratio, compared with 0.85% for CEPI.

Which ETF pays a higher dividend yield, SSK or CEPI?

CEPI has the higher dividend yield at 48.00%, compared with 33.89% for SSK.

What is the main difference between SSK and CEPI?

SSK is categorized as Cryptocurrency, while CEPI is Derivative Income. They also come from different issuers: REX-Osprey and REX. Their fees differ too: 0.75% for SSK and 0.85% for CEPI.

Which has better risk-adjusted returns?

CEPI currently has the higher Sharpe Ratio (0.35 vs -0.83), 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.