CBOO vs. ETHE

Last updated Jun 24, 2026

CBOO (Calamos Bitcoin Structured Alt Protection ETF - October) and ETHE (Grayscale Ethereum Trust ETF) are both exchange-traded funds - CBOO is a Defined Outcome fund actively managed by Calamos, while ETHE is a Cryptocurrency fund tracking the CoinDesk Ether Price Index. CBOO is actively managed, while ETHE is passively managed. A 0.68 correlation means they provide meaningful diversification when combined. CBOO charges 0.69%/yr vs 2.50%/yr for ETHE.

Performance

CBOO vs. ETHE - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) and Grayscale Ethereum Trust ETF (ETHE). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBOO achieves a 0.10% return, which is significantly higher than ETHE's -44.35% return.

CBOO

• 1D: 0.04%
• 1M: 0.16%
• YTD: 0.10%
• 6M: 0.02%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

ETHE

• 1D: -4.14%
• 1M: -19.62%
• YTD: -44.35%
• 6M: -44.31%
• 1Y: -29.29%
• 3Y*: 11.44%
• 5Y*: -7.22%
• 10Y*: —

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

CBOO vs. ETHE - Yearly Performance Comparison

	2026 (YTD)	2025
CBOO Calamos Bitcoin Structured Alt Protection ETF - October	0.10%	-1.66%
ETHE Grayscale Ethereum Trust ETF	-44.35%	-37.35%

Correlation

The correlation between CBOO and ETHE is 0.68, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 7, 2025	0.68

Return for Risk

CBOO vs. ETHE — Risk / Return Rank

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

CBOO

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

ETHE

ETHE Risk / Return Rank: 6
ETHE Sharpe Ratio Rank: 5
ETHE Sortino Ratio Rank: 6
ETHE Omega Ratio Rank: 6
ETHE Calmar Ratio Rank: 5
ETHE Martin Ratio Rank: 6

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.

CBOO vs. ETHE - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin Structured Alt Protection ETF - October (CBOO) and Grayscale Ethereum Trust ETF (ETHE). 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.

	CBOO	ETHE	Difference
Sharpe ratio: Return per unit of total volatility	—	-0.43	—
Sortino ratio: Return per unit of downside risk	—	-0.23	—
Omega ratio: Gain probability vs. loss probability	—	0.97	—
Calmar ratio: Return relative to maximum drawdown	—	-0.43	—
Martin ratio: Return relative to average drawdown	—	-0.72	—

Drawdowns

CBOO vs. ETHE - Drawdown Comparison

The maximum CBOO drawdown since its inception was -2.34%, smaller than the maximum ETHE drawdown of -96.26%. Use the drawdown chart below to compare losses from any high point for CBOO and ETHE.

Drawdown Indicators

	CBOO	ETHE	Difference
Max Drawdown Largest peak-to-trough decline	-2.34%	-96.26%	+93.92%
Max Drawdown (1Y) Largest decline over 1 year	—	-67.77%	—
Max Drawdown (3Y) Largest decline over 3 years	—	-67.77%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-89.85%	—
Current Drawdown Current decline from peak	-1.58%	-78.96%	+77.38%
Average Drawdown Average peak-to-trough decline	-1.60%	-72.24%	+70.64%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	40.66%	—

Volatility

Volatility by Period

	CBOO	ETHE	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	19.56%	—
Volatility (6M) Calculated over the trailing 6-month period	—	46.85%	—
Volatility (1Y) Calculated over the trailing 1-year period	2.07%	68.95%	-66.88%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	2.07%	82.29%	-80.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	2.07%	191.19%	-189.12%

CBOO vs. ETHE - Expense Ratio Comparison

CBOO has a 0.69% expense ratio, which is lower than ETHE's 2.50% expense ratio.

Dividends

CBOO vs. ETHE - Dividend Comparison

CBOO's dividend yield for the trailing twelve months is around 0.57%, less than ETHE's 1.46% yield.

Position	TTM	2025
CBOO Calamos Bitcoin Structured Alt Protection ETF - October	0.57%	0.57%
ETHE Grayscale Ethereum Trust ETF	1.46%	0.00%

Frequently Asked Questions

Can I hold both CBOO and ETHE in my portfolio?

CBOO and ETHE have a correlation of 0.68, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CBOO or ETHE?

On fees, CBOO is cheaper at 0.69% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CBOO or ETHE?

CBOO is cheaper with a 0.69% expense ratio, compared with 2.50% for ETHE.

Which ETF pays a higher dividend yield, CBOO or ETHE?

ETHE has the higher dividend yield at 1.46%, compared with 0.57% for CBOO.

What is the main difference between CBOO and ETHE?

CBOO is categorized as Defined Outcome, while ETHE is Cryptocurrency. They also come from different issuers: Calamos and Grayscale. Their fees differ too: 0.69% for CBOO and 2.50% for ETHE.