CBOA vs. SROI

Last updated Jun 4, 2026

CBOA (Calamos Bitcoin Structured Alt Protection ETF - April) and SROI (Calamos Antetokounmpo Global Sustainable Equities ETF) are both exchange-traded funds - CBOA is a Defined Outcome fund tracking the CBOE Bitcoin US ETF Index, while SROI is a Global Equities fund actively managed by Calamos. CBOA is passively managed, while SROI is actively managed. Over the past year, CBOA returned -4.79% vs 20.66% for SROI. At a 0.39 correlation, their price movements are largely independent. CBOA charges 0.69%/yr vs 0.95%/yr for SROI.

Performance

CBOA vs. SROI - Performance Comparison

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

Returns By Period

In the year-to-date period, CBOA achieves a -6.06% return, which is significantly lower than SROI's 11.06% return.

CBOA

• 1D: -0.19%
• 1M: -1.65%
• YTD: -6.06%
• 6M: -6.36%
• 1Y: -4.79%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SROI

• 1D: -0.71%
• 1M: 3.89%
• YTD: 11.06%
• 6M: 11.15%
• 1Y: 20.66%
• 3Y*: 14.52%
• 5Y*: —
• 10Y*: —

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

CBOA vs. SROI - Yearly Performance Comparison

	2026 (YTD)	2025
CBOA Calamos Bitcoin Structured Alt Protection ETF - April	-6.06%	5.24%
SROI Calamos Antetokounmpo Global Sustainable Equities ETF	11.06%	29.06%

Correlation

The correlation between CBOA and SROI is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.42
Correlation (All Time) Calculated using the full available price history since Apr 8, 2025	0.39

Return for Risk

CBOA vs. SROI — Risk / Return Rank

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

CBOA

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

SROI

SROI Risk / Return Rank: 46
SROI Sharpe Ratio Rank: 45
SROI Sortino Ratio Rank: 46
SROI Omega Ratio Rank: 44
SROI Calmar Ratio Rank: 42
SROI Martin Ratio Rank: 52

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.

CBOA vs. SROI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin Structured Alt Protection ETF - April (CBOA) and Calamos Antetokounmpo Global Sustainable Equities ETF (SROI). 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.

	CBOA	SROI	Difference
Sharpe ratio: Return per unit of total volatility	-0.89	1.55	-2.44
Sortino ratio: Return per unit of downside risk	-1.13	2.24	-3.38
Omega ratio: Gain probability vs. loss probability	0.85	1.28	-0.43
Calmar ratio: Return relative to maximum drawdown	-0.61	2.04	-2.65
Martin ratio: Return relative to average drawdown	-1.18	8.77	-9.95
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CBOA vs. SROI - Sharpe Ratio Comparison

The current CBOA Sharpe Ratio is -0.89, which is lower than the SROI Sharpe Ratio of 1.55. The chart below compares the historical Sharpe Ratios of CBOA and SROI, 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

	CBOA	SROI	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.89	1.55	-2.44
Sharpe Ratio (All Time) Calculated using the full available price history	-0.19	1.01	-1.21

Drawdowns

CBOA vs. SROI - Drawdown Comparison

The maximum CBOA drawdown since its inception was -7.91%, smaller than the maximum SROI drawdown of -15.38%. Use the drawdown chart below to compare losses from any high point for CBOA and SROI.

Drawdown Indicators

	CBOA	SROI	Difference
Max Drawdown Largest peak-to-trough decline	-7.91%	-15.38%	+7.47%
Max Drawdown (1Y) Largest decline over 1 year	-7.91%	-10.19%	+2.28%
Max Drawdown (3Y) Largest decline over 3 years	—	-15.38%	—
Current Drawdown Current decline from peak	-7.91%	-0.71%	-7.20%
Average Drawdown Average peak-to-trough decline	-2.38%	-2.42%	+0.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	4.06%	2.36%	+1.70%

Volatility

CBOA vs. SROI - Volatility Comparison

The current volatility for Calamos Bitcoin Structured Alt Protection ETF - April (CBOA) is 0.91%, while Calamos Antetokounmpo Global Sustainable Equities ETF (SROI) has a volatility of 4.00%. This indicates that CBOA experiences smaller price fluctuations and is considered to be less risky than SROI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBOA	SROI	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.91%	4.00%	-3.09%
Volatility (6M) Calculated over the trailing 6-month period	4.67%	10.86%	-6.19%
Volatility (1Y) Calculated over the trailing 1-year period	5.39%	13.38%	-7.99%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.14%	13.87%	-8.73%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.14%	13.87%	-8.73%

CBOA vs. SROI - Expense Ratio Comparison

CBOA has a 0.69% expense ratio, which is lower than SROI's 0.95% expense ratio.

Dividends

CBOA vs. SROI - Dividend Comparison

CBOA's dividend yield for the trailing twelve months is around 2.38%, more than SROI's 0.54% yield.

Position	TTM	2025	2024	2023
CBOA Calamos Bitcoin Structured Alt Protection ETF - April	2.38%	2.24%	0.00%	0.00%
SROI Calamos Antetokounmpo Global Sustainable Equities ETF	0.54%	0.60%	0.68%	0.94%

Frequently Asked Questions

Can I hold both CBOA and SROI in my portfolio?

CBOA and SROI have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CBOA or SROI?

SROI has higher volatility (4.00%) compared to CBOA (0.91%). In terms of maximum drawdown, CBOA dropped -7.91% vs SROI's -15.38%.

Which ETF is better, CBOA or SROI?

On 1-year performance, SROI leads with 20.66% vs -4.79% for CBOA. On fees, CBOA is cheaper at 0.69% per year. On volatility, CBOA has been the lower-risk option at 0.91%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CBOA or SROI?

Over the 1-year period, SROI has performed better with a 20.66% return vs -4.79%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CBOA or SROI?

CBOA is cheaper with a 0.69% expense ratio, compared with 0.95% for SROI.

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

CBOA has the higher dividend yield at 2.38%, compared with 0.54% for SROI.

What is the main difference between CBOA and SROI?

CBOA is categorized as Defined Outcome, while SROI is Global Equities. Their fees differ too: 0.69% for CBOA and 0.95% for SROI.

Which has better risk-adjusted returns?

SROI currently has the higher Sharpe Ratio (1.55 vs -0.89), 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.