CBOJ vs. CBTA

Last updated Jun 4, 2026

CBOJ (Calamos Bitcoin Structured Alt Protection ETF - January) and CBTA (Calamos Bitcoin 80 Series Structured Alt Protection ETF - April) are both Defined Outcome funds from Calamos tracking the CBOE Bitcoin US ETF Index. Both are passively managed. Over the past year, CBOJ returned -3.88% vs -28.38% for CBTA. Their correlation of 0.88 suggests significant overlap in exposure. Both charge a 0.69% expense ratio.

Performance

CBOJ vs. CBTA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) and Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBOJ achieves a -1.37% return, which is significantly higher than CBTA's -23.76% return.

CBOJ

• 1D: -0.18%
• 1M: -1.59%
• YTD: -1.37%
• 6M: -2.70%
• 1Y: -3.88%
• 3Y*: —
• 5Y*: —
• 10Y*: —

CBTA

• 1D: -1.31%
• 1M: -9.26%
• YTD: -23.76%
• 6M: -26.89%
• 1Y: -28.38%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CBOJ vs. CBTA - Yearly Performance Comparison

	2026 (YTD)	2025
CBOJ Calamos Bitcoin Structured Alt Protection ETF - January	-1.37%	0.54%
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	-23.76%	11.79%

Correlation

The correlation between CBOJ and CBTA is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.89
Correlation (All Time) Calculated using the full available price history since Apr 8, 2025	0.88

The correlation between CBOJ and CBTA has been stable across timeframes, ranging from 0.88 to 0.89 - a consistent structural relationship.

Return for Risk

CBOJ vs. CBTA — Risk / Return Rank

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

CBOJ

CBOJ Risk / Return Rank: 4
CBOJ Sharpe Ratio Rank: 3
CBOJ Sortino Ratio Rank: 3
CBOJ Omega Ratio Rank: 3
CBOJ Calmar Ratio Rank: 5
CBOJ Martin Ratio Rank: 5

CBTA

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

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.

CBOJ vs. CBTA - Risk-Adjusted Trends Comparison

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

	CBOJ	CBTA	Difference
Sharpe ratio: Return per unit of total volatility	-0.78	-0.98	+0.20
Sortino ratio: Return per unit of downside risk	-1.05	-1.33	+0.28
Omega ratio: Gain probability vs. loss probability	0.88	0.84	+0.04
Calmar ratio: Return relative to maximum drawdown	-0.48	-0.78	+0.30
Martin ratio: Return relative to average drawdown	-0.77	-1.42	+0.65
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CBOJ vs. CBTA - Sharpe Ratio Comparison

The current CBOJ Sharpe Ratio is -0.78, which is comparable to the CBTA Sharpe Ratio of -0.98. The chart below compares the historical Sharpe Ratios of CBOJ and CBTA, 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

	CBOJ	CBTA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.78	-0.98	+0.20
Sharpe Ratio (All Time) Calculated using the full available price history	-0.35	-0.47	+0.12

Drawdowns

CBOJ vs. CBTA - Drawdown Comparison

The maximum CBOJ drawdown since its inception was -8.13%, smaller than the maximum CBTA drawdown of -36.74%. Use the drawdown chart below to compare losses from any high point for CBOJ and CBTA.

Drawdown Indicators

	CBOJ	CBTA	Difference
Max Drawdown Largest peak-to-trough decline	-8.13%	-36.74%	+28.61%
Max Drawdown (1Y) Largest decline over 1 year	-8.13%	-36.74%	+28.61%
Current Drawdown Current decline from peak	-7.70%	-36.33%	+28.63%
Average Drawdown Average peak-to-trough decline	-3.13%	-12.99%	+9.86%
Ulcer Index Depth and duration of drawdowns from previous peaks	5.04%	20.01%	-14.97%

Volatility

CBOJ vs. CBTA - Volatility Comparison

The current volatility for Calamos Bitcoin Structured Alt Protection ETF - January (CBOJ) is 0.84%, while Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA) has a volatility of 4.51%. This indicates that CBOJ experiences smaller price fluctuations and is considered to be less risky than CBTA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBOJ	CBTA	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.84%	4.51%	-3.67%
Volatility (6M) Calculated over the trailing 6-month period	2.50%	24.83%	-22.33%
Volatility (1Y) Calculated over the trailing 1-year period	4.97%	28.99%	-24.02%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.58%	27.68%	-23.10%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	4.58%	27.68%	-23.10%

CBOJ vs. CBTA - Expense Ratio Comparison

Both CBOJ and CBTA have an expense ratio of 0.69%.

Dividends

CBOJ vs. CBTA - Dividend Comparison

CBOJ's dividend yield for the trailing twelve months is around 3.20%, more than CBTA's 1.17% yield.

Position	TTM	2025
CBOJ Calamos Bitcoin Structured Alt Protection ETF - January	3.20%	3.16%
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	1.17%	0.89%

Frequently Asked Questions

Can I hold both CBOJ and CBTA in my portfolio?

CBOJ and CBTA 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, CBOJ or CBTA?

CBTA has higher volatility (4.51%) compared to CBOJ (0.84%). In terms of maximum drawdown, CBOJ dropped -8.13% vs CBTA's -36.74%.

Which ETF is better, CBOJ or CBTA?

On 1-year performance, CBOJ leads with -3.88% vs -28.38% for CBTA. Both ETFs have the same 0.69% expense ratio. On volatility, CBOJ has been the lower-risk option at 0.84%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CBOJ or CBTA?

Over the 1-year period, CBOJ has performed better with a -3.88% return vs -28.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CBOJ or CBTA?

CBOJ and CBTA have the same expense ratio: 0.69% per year.

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

CBOJ has the higher dividend yield at 3.20%, compared with 1.17% for CBTA.

What is the main difference between CBOJ and CBTA?

Both ETFs track CBOE Bitcoin US ETF Index.

Which has better risk-adjusted returns?

CBOJ currently has the higher Sharpe Ratio (-0.78 vs -0.98), 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.