OOSP vs. CBOA

Last updated Aug 2, 2026

OOSP (Obra Opportunistic Structured Products ETF) and CBOA (Calamos Bitcoin Structured Alt Protection ETF - April) are both exchange-traded funds - OOSP is a Multisector Bonds fund actively managed by Obra, while CBOA is a Defined Outcome fund tracking the CBOE Bitcoin US ETF Index. OOSP is actively managed, while CBOA is passively managed. Over the past year, OOSP returned 5.94% vs -6.31% for CBOA. Their -0.05 correlation means they have often moved in opposite directions in the past. OOSP charges 0.90%/yr vs 0.69%/yr for CBOA.

Performance

OOSP vs. CBOA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Obra Opportunistic Structured Products ETF (OOSP) and Calamos Bitcoin Structured Alt Protection ETF - April (CBOA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OOSP achieves a 3.25% return, which is significantly higher than CBOA's -6.06% return.

OOSP

• 1D: 0.05%
• 1M: 0.26%
• 6M: 2.19%
• YTD: 3.25%
• 1Y: 5.94%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: 7.39%

CBOA

• 1D: -0.29%
• 1M: 0.47%
• 6M: -5.57%
• YTD: -6.06%
• 1Y: -6.31%
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: -0.89%

*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)
CBOA Calamos Bitcoin Structured Alt Protection ETF - April	$57.65K	$34.69K	$27.25K
OOSP Obra Opportunistic Structured Products ETF	$61.71K	$74.09K	$68.76K

OOSP vs. CBOA - Yearly Performance Comparison

	2026 (YTD)	2025
OOSP Obra Opportunistic Structured Products ETF	3.25%	5.17%
CBOA Calamos Bitcoin Structured Alt Protection ETF - April	-6.06%	5.22%

Correlation

The correlation between OOSP and CBOA is -0.05, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.

	Correlation
Correlation (1Y) Focuses on recent behavior, but can change the most.	-0.05
Correlation (All Time) Calculated using the full available price history since Apr 7, 2025	-0.05

Return for Risk

OOSP vs. CBOA — Risk / Return Rank

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

OOSP

OOSP Risk / Return Rank: 83
OOSP Sharpe Ratio Rank: 72
OOSP Sortino Ratio Rank: 74
OOSP Omega Ratio Rank: 81
OOSP Calmar Ratio Rank: 94
OOSP Martin Ratio Rank: 93

CBOA

CBOA Risk / Return Rank: 2
CBOA Sharpe Ratio Rank: 0
CBOA Sortino Ratio Rank: 2
CBOA Omega Ratio Rank: 1
CBOA Calmar Ratio Rank: 3
CBOA Martin Ratio Rank: 3

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.

OOSP vs. CBOA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Obra Opportunistic Structured Products ETF (OOSP) and Calamos Bitcoin Structured Alt Protection ETF - April (CBOA). 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.

	OOSP	CBOA	Difference
Sharpe ratio: Return per unit of total volatility	1.64	-1.19	+2.83
Sortino ratio: Return per unit of downside risk	2.39	-1.52	+3.91
Omega ratio: Gain probability vs. loss probability	1.34	0.81	+0.54
Calmar ratio: Return relative to maximum drawdown	4.74	-0.73	+5.48
Martin ratio: Return relative to average drawdown	17.26	-1.25	+18.51

OOSP vs. CBOA - Sharpe Ratio Comparison

The current OOSP Sharpe Ratio is 1.64, which is higher than the CBOA Sharpe Ratio of -1.19. The chart below compares the historical Sharpe Ratios of OOSP and CBOA, 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

OOSP vs. CBOA - Drawdown Comparison

The maximum OOSP drawdown since its inception was -1.31%, smaller than the maximum CBOA drawdown of -8.92%. Use the drawdown chart below to compare losses from any high point for OOSP and CBOA.

Drawdown Indicators

	OOSP	CBOA	Difference
Max Drawdown Largest peak-to-trough decline	-1.31%	-8.92%	+7.61%
Max Drawdown (1Y) Largest decline over 1 year	-1.31%	-8.92%	+7.61%
Current Drawdown Current decline from peak	-0.08%	-7.91%	+7.83%
Average Drawdown Average peak-to-trough decline	-0.20%	-3.07%	+2.87%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.36%	5.19%	-4.83%

Volatility

OOSP vs. CBOA - Volatility Comparison

Obra Opportunistic Structured Products ETF (OOSP) has a higher volatility of 1.22% compared to Calamos Bitcoin Structured Alt Protection ETF - April (CBOA) at 1.05%. This indicates that OOSP's price experiences larger fluctuations and is considered to be riskier than CBOA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OOSP	CBOA	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.22%	1.05%	+0.17%
Volatility (6M) Calculated over the trailing 6-month period	2.36%	4.10%	-1.74%
Volatility (1Y) Calculated over the trailing 1-year period	3.79%	5.49%	-1.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.36%	5.02%	-1.66%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.36%	5.02%	-1.66%

OOSP vs. CBOA - Expense Ratio Comparison

OOSP has a 0.90% expense ratio, which is higher than CBOA's 0.69% expense ratio.

Dividends

OOSP vs. CBOA - Dividend Comparison

OOSP's dividend yield for the trailing twelve months is around 6.40%, more than CBOA's 2.38% yield.

Position	TTM	2025	2024
CBOA Calamos Bitcoin Structured Alt Protection ETF - April	2.38%	2.24%	0.00%
OOSP Obra Opportunistic Structured Products ETF	6.40%	6.71%	5.42%

Frequently Asked Questions

Can I hold both OOSP and CBOA in my portfolio?

OOSP and CBOA have a correlation of -0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, OOSP or CBOA?

OOSP has higher volatility (1.22%) compared to CBOA (1.05%). In terms of maximum drawdown, OOSP dropped -1.31% vs CBOA's -8.92%.

Which ETF is better, OOSP or CBOA?

On 1-year performance, OOSP leads with 5.94% vs -6.31% for CBOA. On fees, CBOA is cheaper at 0.69% per year. On volatility, CBOA has been the lower-risk option at 1.05%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, OOSP or CBOA?

Over the 1-year period, OOSP has performed better with a 5.94% return vs -6.31%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, OOSP or CBOA?

CBOA is cheaper with a 0.69% expense ratio, compared with 0.90% for OOSP.

Which ETF pays a higher dividend yield, OOSP or CBOA?

OOSP has the higher dividend yield at 6.40%, compared with 2.38% for CBOA.

What is the main difference between OOSP and CBOA?

OOSP is categorized as Multisector Bonds, while CBOA is Defined Outcome. They also come from different issuers: Obra and Calamos. Their fees differ too: 0.90% for OOSP and 0.69% for CBOA.

Which has better risk-adjusted returns?

OOSP currently has the higher Sharpe Ratio (1.64 vs -1.19), 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.