CBTA vs. BWET

Last updated Jun 4, 2026

CBTA (Calamos Bitcoin 80 Series Structured Alt Protection ETF - April) and BWET (Breakwave Tanker Shipping ETF) are both exchange-traded funds - CBTA is a Defined Outcome fund tracking the CBOE Bitcoin US ETF Index, while BWET is a Commodities fund tracking the Breakwave Wet Freight Futures Index. Both are passively managed. Over the past year, CBTA returned -28.38% vs 1800.91% for BWET. At a correlation of -0.08, they often move in opposite directions. CBTA charges 0.69%/yr vs 3.50%/yr for BWET.

Performance

CBTA vs. BWET - 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 Breakwave Tanker Shipping ETF (BWET). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBTA achieves a -23.76% return, which is significantly lower than BWET's 875.88% return.

CBTA

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

BWET

• 1D: 4.26%
• 1M: 9.15%
• YTD: 875.88%
• 6M: 735.56%
• 1Y: 1,800.91%
• 3Y*: 129.64%
• 5Y*: —
• 10Y*: —

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

CBTA vs. BWET - Yearly Performance Comparison

	2026 (YTD)	2025
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	-23.76%	11.79%
BWET Breakwave Tanker Shipping ETF	875.88%	88.78%

Correlation

The correlation between CBTA and BWET is -0.07, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	-0.07
Correlation (All Time) Calculated using the full available price history since Apr 8, 2025	-0.08

Return for Risk

CBTA vs. BWET — Risk / Return Rank

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

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

BWET

BWET Risk / Return Rank: 99
BWET Sharpe Ratio Rank: 100
BWET Sortino Ratio Rank: 97
BWET Omega Ratio Rank: 97
BWET Calmar Ratio Rank: 100
BWET Martin Ratio Rank: 99

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. BWET - 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 Breakwave Tanker Shipping ETF (BWET). 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.

	CBTA	BWET	Difference
Sharpe ratio: Return per unit of total volatility	-0.98	18.57	-19.55
Sortino ratio: Return per unit of downside risk	-1.33	6.55	-7.89
Omega ratio: Gain probability vs. loss probability	0.84	1.96	-1.12
Calmar ratio: Return relative to maximum drawdown	-0.78	59.51	-60.28
Martin ratio: Return relative to average drawdown	-1.42	158.07	-159.49
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CBTA vs. BWET - Sharpe Ratio Comparison

The current CBTA Sharpe Ratio is -0.98, which is lower than the BWET Sharpe Ratio of 18.57. The chart below compares the historical Sharpe Ratios of CBTA and BWET, 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

	CBTA	BWET	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.98	18.57	-19.55
Sharpe Ratio (All Time) Calculated using the full available price history	-0.47	1.90	-2.37

Drawdowns

CBTA vs. BWET - Drawdown Comparison

The maximum CBTA drawdown since its inception was -36.74%, smaller than the maximum BWET drawdown of -56.90%. Use the drawdown chart below to compare losses from any high point for CBTA and BWET.

Drawdown Indicators

	CBTA	BWET	Difference
Max Drawdown Largest peak-to-trough decline	-36.74%	-56.90%	+20.16%
Max Drawdown (1Y) Largest decline over 1 year	-36.74%	-30.64%	-6.10%
Max Drawdown (3Y) Largest decline over 3 years	—	-56.90%	—
Current Drawdown Current decline from peak	-36.33%	-11.29%	-25.04%
Average Drawdown Average peak-to-trough decline	-12.99%	-24.09%	+11.10%
Ulcer Index Depth and duration of drawdowns from previous peaks	20.01%	11.51%	+8.50%

Volatility

CBTA vs. BWET - Volatility Comparison

The current volatility for Calamos Bitcoin 80 Series Structured Alt Protection ETF - April (CBTA) is 4.51%, while Breakwave Tanker Shipping ETF (BWET) has a volatility of 33.96%. This indicates that CBTA experiences smaller price fluctuations and is considered to be less risky than BWET based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CBTA	BWET	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.51%	33.96%	-29.45%
Volatility (6M) Calculated over the trailing 6-month period	24.83%	88.49%	-63.66%
Volatility (1Y) Calculated over the trailing 1-year period	28.99%	98.35%	-69.36%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	27.68%	70.45%	-42.77%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	27.68%	70.45%	-42.77%

CBTA vs. BWET - Expense Ratio Comparison

CBTA has a 0.69% expense ratio, which is lower than BWET's 3.50% expense ratio.

Dividends

CBTA vs. BWET - Dividend Comparison

CBTA's dividend yield for the trailing twelve months is around 1.17%, while BWET has not paid dividends to shareholders.

Position	TTM	2025
BWET Breakwave Tanker Shipping ETF	0.00%	0.00%
CBTA Calamos Bitcoin 80 Series Structured Alt Protection ETF - April	1.17%	0.89%

Frequently Asked Questions

Can I hold both CBTA and BWET in my portfolio?

CBTA and BWET have a correlation of -0.07, 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 BWET?

BWET has higher volatility (33.96%) compared to CBTA (4.51%). In terms of maximum drawdown, CBTA dropped -36.74% vs BWET's -56.90%.

Which ETF is better, CBTA or BWET?

On 1-year performance, BWET leads with 1800.91% vs -28.38% for CBTA. On fees, CBTA is cheaper at 0.69% per year. On volatility, CBTA has been the lower-risk option at 4.51%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, CBTA or BWET?

Over the 1-year period, BWET has performed better with a 1800.91% return vs -28.38%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, CBTA or BWET?

CBTA is cheaper with a 0.69% expense ratio, compared with 3.50% for BWET.

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

CBTA has the higher dividend yield at 1.17%, compared with 0.00% for BWET.

What is the main difference between CBTA and BWET?

CBTA is categorized as Defined Outcome, while BWET is Commodities. CBTA tracks CBOE Bitcoin US ETF Index, while BWET tracks Breakwave Wet Freight Futures Index. They also come from different issuers: Calamos and Amplify. Their fees differ too: 0.69% for CBTA and 3.50% for BWET.

Which has better risk-adjusted returns?

BWET currently has the higher Sharpe Ratio (18.57 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.