SSK vs. BITI

Last updated Jul 30, 2026

SSK (REX-Osprey SOL + Staking ETF) and BITI (ProShares Short Bitcoin ETF) are both Cryptocurrency funds - SSK tracks the Solana while BITI tracks the Bloomberg Bitcoin Index. Both are passively managed. Over the past year, SSK returned -59.24% vs 63.61% for BITI. Their -0.87 correlation means they have often moved in opposite directions in the past. SSK charges 0.75%/yr vs 1.03%/yr for BITI.

Performance

SSK vs. BITI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in REX-Osprey SOL + Staking ETF (SSK) and ProShares Short Bitcoin ETF (BITI). 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 BITI's 25.97% return.

SSK

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

BITI

• 1D: 0.40%
• 1M: -5.37%
• 6M: 28.98%
• YTD: 25.97%
• 1Y: 63.61%
• 3Y*: -31.89%
• 5Y*: —
• 10Y*: —
• ALL TIME*: -35.83%

*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)
BITI ProShares Short Bitcoin ETF	$22.82M	$27.19M	$38.80M
SSK REX-Osprey SOL + Staking ETF	$290.96K	$501.02K	$683.74K

SSK vs. BITI - Yearly Performance Comparison

	2026 (YTD)	2025
SSK REX-Osprey SOL + Staking ETF	-39.90%	-23.21%
BITI ProShares Short Bitcoin ETF	25.97%	16.31%

Correlation

The correlation between SSK and BITI is -0.89, meaning they have often moved in opposite directions in the past. This relationship can weaken or reverse as market conditions change.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.89
Correlation (All Time) Calculated using the full available price history since Jul 2, 2025	-0.87

The correlation between SSK and BITI has been stable across timeframes, ranging from -0.89 to -0.87 - a consistent structural relationship.

Return for Risk

SSK vs. BITI — 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

BITI

BITI Risk / Return Rank: 60
BITI Sharpe Ratio Rank: 62
BITI Sortino Ratio Rank: 60
BITI Omega Ratio Rank: 55
BITI Calmar Ratio Rank: 72
BITI Martin Ratio Rank: 53

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. BITI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for REX-Osprey SOL + Staking ETF (SSK) and ProShares Short Bitcoin ETF (BITI). 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	BITI	Difference
Sharpe ratio: Return per unit of total volatility	-0.83	1.45	-2.28
Sortino ratio: Return per unit of downside risk	-1.24	2.02	-3.26
Omega ratio: Gain probability vs. loss probability	0.87	1.24	-0.38
Calmar ratio: Return relative to maximum drawdown	-0.81	2.53	-3.34
Martin ratio: Return relative to average drawdown	-1.15	6.18	-7.33

SSK vs. BITI - Sharpe Ratio Comparison

The current SSK Sharpe Ratio is -0.83, which is lower than the BITI Sharpe Ratio of 1.45. The chart below compares the historical Sharpe Ratios of SSK and BITI, 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. BITI - Drawdown Comparison

The maximum SSK drawdown since its inception was -73.56%, smaller than the maximum BITI drawdown of -92.16%. Use the drawdown chart below to compare losses from any high point for SSK and BITI.

Drawdown Indicators

	SSK	BITI	Difference
Max Drawdown Largest peak-to-trough decline	-73.56%	-92.16%	+18.60%
Max Drawdown (1Y) Largest decline over 1 year	-73.56%	-25.28%	-48.28%
Max Drawdown (3Y) Largest decline over 3 years	—	-84.63%	—
Current Drawdown Current decline from peak	-69.54%	-86.25%	+16.71%
Average Drawdown Average peak-to-trough decline	-42.83%	-68.56%	+25.73%
Ulcer Index Depth and duration of drawdowns from previous peaks	51.50%	10.33%	+41.17%

Volatility

SSK vs. BITI - Volatility Comparison

REX-Osprey SOL + Staking ETF (SSK) has a higher volatility of 12.53% compared to ProShares Short Bitcoin ETF (BITI) at 9.08%. This indicates that SSK's price experiences larger fluctuations and is considered to be riskier than BITI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SSK	BITI	Difference
Volatility (1M) Calculated over the trailing 1-month period	12.53%	9.08%	+3.45%
Volatility (6M) Calculated over the trailing 6-month period	51.35%	33.55%	+17.80%
Volatility (1Y) Calculated over the trailing 1-year period	71.72%	44.09%	+27.63%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	70.44%	52.05%	+18.39%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	70.44%	52.05%	+18.39%

SSK vs. BITI - Expense Ratio Comparison

SSK has a 0.75% expense ratio, which is lower than BITI's 1.03% expense ratio.

Dividends

SSK vs. BITI - Dividend Comparison

SSK's dividend yield for the trailing twelve months is around 33.89%, more than BITI's 15.44% yield.

Position	TTM	2025	2024	2023	2022
BITI ProShares Short Bitcoin ETF	15.44%	1.60%	3.91%	3.33%	0.06%
SSK REX-Osprey SOL + Staking ETF	33.89%	3.63%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both SSK and BITI in my portfolio?

SSK and BITI have a correlation of -0.89, 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 BITI?

SSK has higher volatility (12.53%) compared to BITI (9.08%). In terms of maximum drawdown, SSK dropped -73.56% vs BITI's -92.16%.

Which ETF is better, SSK or BITI?

On 1-year performance, BITI leads with 63.61% vs -59.24% for SSK. On fees, SSK is cheaper at 0.75% per year. On volatility, BITI has been the lower-risk option at 9.08%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SSK or BITI?

Over the 1-year period, BITI has performed better with a 63.61% 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 BITI?

SSK is cheaper with a 0.75% expense ratio, compared with 1.03% for BITI.

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

SSK has the higher dividend yield at 33.89%, compared with 15.44% for BITI.

What is the main difference between SSK and BITI?

SSK tracks Solana, while BITI tracks Bloomberg Bitcoin Index. They also come from different issuers: REX-Osprey and ProShares. Their fees differ too: 0.75% for SSK and 1.03% for BITI.

Which has better risk-adjusted returns?

BITI currently has the higher Sharpe Ratio (1.45 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.