CBOL vs. APRB

Last updated Aug 1, 2026

CBOL (Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF) and APRB (Aptus April Buffer ETF) are both Defined Outcome funds. Both are actively managed. Their 0.47 correlation means their historical movements had little consistent relationship. CBOL charges 0.79%/yr vs 0.25%/yr for APRB.

Performance

CBOL vs. APRB - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF (CBOL) and Aptus April Buffer ETF (APRB). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBOL achieves a -1.94% return, which is significantly lower than APRB's 5.78% return.

CBOL

• 1D: -0.23%
• 1M: 0.17%
• 6M: -1.71%
• YTD: -1.94%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

APRB

• 1D: 0.30%
• 1M: 0.71%
• 6M: 4.72%
• YTD: 5.78%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —
• ALL TIME*: —

*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)
APRB Aptus April Buffer ETF	$24.58K	$46.66K	$43.31K
CBOL Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF	$64.22K	$31.00K	$17.40K

CBOL vs. APRB - Yearly Performance Comparison

	2026 (YTD)	2025
CBOL Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF	-1.94%	-2.04%
APRB Aptus April Buffer ETF	5.78%	2.48%

Correlation

The correlation between CBOL and APRB is 0.47, which is low. Their historical price movements had little consistent relationship.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 14, 2025	0.47

Return for Risk

CBOL vs. APRB - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF (CBOL) and Aptus April Buffer ETF (APRB). 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.

Risk / return metrics aren't available yet — we need at least 12 months of trading data to calculate them.

Drawdowns

CBOL vs. APRB - Drawdown Comparison

The maximum CBOL drawdown since its inception was -5.05%, which is greater than APRB's maximum drawdown of -4.59%. Use the drawdown chart below to compare losses from any high point for CBOL and APRB.

Drawdown Indicators

	CBOL	APRB	Difference
Max Drawdown Largest peak-to-trough decline	-5.05%	-4.59%	-0.46%
Current Drawdown Current decline from peak	-4.56%	0.00%	-4.56%
Average Drawdown Average peak-to-trough decline	-3.48%	-0.65%	-2.83%

Volatility

Volatility by Period

	CBOL	APRB	Difference
Volatility (1Y) Calculated over the trailing 1-year period	3.65%	5.72%	-2.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.65%	5.72%	-2.07%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.65%	5.72%	-2.07%

CBOL vs. APRB - Expense Ratio Comparison

CBOL has a 0.79% expense ratio, which is higher than APRB's 0.25% expense ratio.

Dividends

CBOL vs. APRB - Dividend Comparison

CBOL's dividend yield for the trailing twelve months is around 1.83%, while APRB has not paid dividends to shareholders.

Position	TTM	2025
APRB Aptus April Buffer ETF	0.00%	0.00%
CBOL Calamos Laddered Bitcoin 90 Series Structured Alt Protection ETF	1.83%	1.79%

Frequently Asked Questions

Can I hold both CBOL and APRB in my portfolio?

CBOL and APRB have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CBOL or APRB?

On fees, APRB is cheaper at 0.25% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CBOL or APRB?

APRB is cheaper with a 0.25% expense ratio, compared with 0.79% for CBOL.

Which ETF pays a higher dividend yield, CBOL or APRB?

CBOL has the higher dividend yield at 1.83%, compared with 0.00% for APRB.

What is the main difference between CBOL and APRB?

They also come from different issuers: Calamos and Aptus. Their fees differ too: 0.79% for CBOL and 0.25% for APRB.