CBTA vs. SROI

Last updated Jul 15, 2026

CBTA (Calamos Bitcoin 80 Series Structured Alt Protection ETF - April) and SROI (Calamos Antetokounmpo Global Sustainable Equities ETF) are both exchange-traded funds - CBTA is a Defined Outcome fund tracking the CBOE Bitcoin US ETF Index, while SROI is a Global Equities fund actively managed by Calamos. CBTA is passively managed, while SROI is actively managed. Over the past year, CBTA returned -34.84% vs 16.94% for SROI. At a 0.43 correlation, their price movements are largely independent. CBTA charges 0.69%/yr vs 0.95%/yr for SROI.

Performance

CBTA vs. SROI - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA) 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, CBTA achieves a -24.25% return, which is significantly lower than SROI's 10.47% return.

CBTA

• 1D: 2.08%
• 1M: 0.70%
• 6M: -29.23%
• YTD: -24.25%
• 1Y: -34.84%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SROI

• 1D: 0.67%
• 1M: 1.21%
• 6M: 7.84%
• YTD: 10.47%
• 1Y: 16.94%
• 3Y*: 12.89%
• 5Y*: —
• 10Y*: —

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

CBTA vs. SROI - Yearly Performance Comparison

	2026 (YTD)	2025
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	-24.25%	11.82%
SROI Calamos Antetokounmpo Global Sustainable Equities ETF	10.47%	26.53%

Correlation

The correlation between CBTA and SROI is 0.45, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.45
Correlation (All Time) Calculated using the full available price history since Apr 7, 2025	0.43

Return for Risk

CBTA vs. SROI — Risk / Return Rank

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

CBTA

CBTA Risk / Return Rank: 1
CBTA Sharpe Ratio Rank: 1
CBTA Sortino Ratio Rank: 1
CBTA Omega Ratio Rank: 1
CBTA Calmar Ratio Rank: 2
CBTA Martin Ratio Rank: 1

SROI

SROI Risk / Return Rank: 43
SROI Sharpe Ratio Rank: 41
SROI Sortino Ratio Rank: 40
SROI Omega Ratio Rank: 40
SROI Calmar Ratio Rank: 40
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.

CBTA vs. SROI - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA) 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.

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.

	CBTA	SROI	Difference
Sharpe ratio: Return per unit of total volatility	-1.19	1.19	-2.38
Sortino ratio: Return per unit of downside risk	-1.73	1.73	-3.46
Omega ratio: Gain probability vs. loss probability	0.80	1.22	-0.42
Calmar ratio: Return relative to maximum drawdown	-0.88	1.67	-2.55
Martin ratio: Return relative to average drawdown	-1.48	6.97	-8.46

CBTA vs. SROI - Sharpe Ratio Comparison

The current CBTA Sharpe Ratio is -1.19, which is lower than the SROI Sharpe Ratio of 1.19. The chart below compares the historical Sharpe Ratios of CBTA 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.

Drawdowns

CBTA vs. SROI - Drawdown Comparison

The maximum CBTA drawdown since its inception was -39.83%, which is greater than SROI's maximum drawdown of -15.38%. Use the drawdown chart below to compare losses from any high point for CBTA and SROI.

Drawdown Indicators

	CBTA	SROI	Difference
Max Drawdown Largest peak-to-trough decline	-39.83%	-15.38%	-24.45%
Max Drawdown (1Y) Largest decline over 1 year	-39.83%	-10.19%	-29.64%
Max Drawdown (3Y) Largest decline over 3 years	—	-15.38%	—
Current Drawdown Current decline from peak	-36.74%	-1.32%	-35.42%
Average Drawdown Average peak-to-trough decline	-15.05%	-2.40%	-12.65%
Ulcer Index Depth and duration of drawdowns from previous peaks	23.52%	2.44%	+21.08%

Volatility

CBTA vs. SROI - Volatility Comparison

Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA) has a higher volatility of 6.11% compared to Calamos Antetokounmpo Global Sustainable Equities ETF (SROI) at 4.58%. This indicates that CBTA's price experiences larger fluctuations and is considered to be riskier than SROI based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBTA	SROI	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.11%	4.58%	+1.53%
Volatility (6M) Calculated over the trailing 6-month period	23.10%	12.07%	+11.03%
Volatility (1Y) Calculated over the trailing 1-year period	29.37%	14.27%	+15.10%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.23%	14.02%	+13.21%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.23%	14.02%	+13.21%

CBTA vs. SROI - Expense Ratio Comparison

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

Dividends

CBTA vs. SROI - Dividend Comparison

CBTA's dividend yield for the trailing twelve months is around 1.18%, more than SROI's 0.54% yield.

Position	TTM	2025	2024	2023
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	1.18%	0.89%	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 CBTA and SROI in my portfolio?

CBTA and SROI have a correlation of 0.45, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CBTA or SROI?

CBTA has higher volatility (6.11%) compared to SROI (4.58%). In terms of maximum drawdown, CBTA dropped -39.83% vs SROI's -15.38%.

Which ETF is better, CBTA or SROI?

On 1-year performance, SROI leads with 16.94% vs -34.84% for CBTA. On fees, CBTA is cheaper at 0.69% per year. On volatility, SROI has been the lower-risk option at 4.58%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CBTA or SROI?

Over the 1-year period, SROI has performed better with a 16.94% return vs -34.84%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CBTA or SROI?

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

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

CBTA has the higher dividend yield at 1.18%, compared with 0.54% for SROI.

What is the main difference between CBTA and SROI?

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

Which has better risk-adjusted returns?

SROI currently has the higher Sharpe Ratio (1.19 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.