CBXO vs. MMAX

Last updated Jun 4, 2026

CBXO (Calamos Bitcoin 90 Series Structured Alt Protection ETF - October) and MMAX (iShares Large Cap Max Buffer Mar ETF) are both Defined Outcome funds. Both are actively managed. At a 0.30 correlation, their price movements are largely independent. CBXO charges 0.69%/yr vs 0.50%/yr for MMAX.

Performance

CBXO vs. MMAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Calamos Bitcoin 90 Series Structured Alt Protection ETF - October (CBXO) and iShares Large Cap Max Buffer Mar ETF (MMAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CBXO achieves a -3.67% return, which is significantly lower than MMAX's 3.09% return.

CBXO

• 1D: -0.03%
• 1M: -0.92%
• YTD: -3.67%
• 6M: -5.18%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

MMAX

• 1D: -0.13%
• 1M: 0.60%
• YTD: 3.09%
• 6M: 3.75%
• 1Y: 7.67%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CBXO vs. MMAX - Yearly Performance Comparison

	2026 (YTD)	2025
CBXO Calamos Bitcoin 90 Series Structured Alt Protection ETF - October	-3.67%	-8.02%
MMAX iShares Large Cap Max Buffer Mar ETF	3.09%	1.60%

Correlation

The correlation between CBXO and MMAX is 0.30, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (All Time) Calculated using the full available price history since Oct 8, 2025	0.30

Return for Risk

CBXO vs. MMAX — Risk / Return Rank

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

MMAX

MMAX Risk / Return Rank: 99
MMAX Sharpe Ratio Rank: 98
MMAX Sortino Ratio Rank: 99
MMAX Omega Ratio Rank: 99
MMAX Calmar Ratio Rank: 99
MMAX 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.

CBXO vs. MMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin 90 Series Structured Alt Protection ETF - October (CBXO) and iShares Large Cap Max Buffer Mar ETF (MMAX). 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.

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

Sharpe Ratios by Period

	CBXO	MMAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	5.52	—
Sharpe Ratio (All Time) Calculated using the full available price history	-2.36	3.13	-5.49

Drawdowns

CBXO vs. MMAX - Drawdown Comparison

The maximum CBXO drawdown since its inception was -11.40%, which is greater than MMAX's maximum drawdown of -1.93%. Use the drawdown chart below to compare losses from any high point for CBXO and MMAX.

Drawdown Indicators

	CBXO	MMAX	Difference
Max Drawdown Largest peak-to-trough decline	-11.40%	-1.93%	-9.47%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.34%	—
Current Drawdown Current decline from peak	-11.40%	-0.13%	-11.27%
Average Drawdown Average peak-to-trough decline	-8.46%	-0.10%	-8.36%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.07%	—

Volatility

Volatility by Period

	CBXO	MMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.36%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.96%	—
Volatility (1Y) Calculated over the trailing 1-year period	7.23%	1.39%	+5.84%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	7.23%	2.49%	+4.74%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	7.23%	2.49%	+4.74%

CBXO vs. MMAX - Expense Ratio Comparison

CBXO has a 0.69% expense ratio, which is higher than MMAX's 0.50% expense ratio.

Dividends

CBXO vs. MMAX - Dividend Comparison

CBXO's dividend yield for the trailing twelve months is around 0.53%, less than MMAX's 1.27% yield.

Position	TTM	2025
CBXO Calamos Bitcoin 90 Series Structured Alt Protection ETF - October	0.53%	0.51%
MMAX iShares Large Cap Max Buffer Mar ETF	1.27%	1.31%

Frequently Asked Questions

Can I hold both CBXO and MMAX in my portfolio?

CBXO and MMAX have a correlation of 0.30, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CBXO or MMAX?

On fees, MMAX is cheaper at 0.50% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, CBXO or MMAX?

MMAX is cheaper with a 0.50% expense ratio, compared with 0.69% for CBXO.

Which ETF pays a higher dividend yield, CBXO or MMAX?

MMAX has the higher dividend yield at 1.27%, compared with 0.53% for CBXO.

What is the main difference between CBXO and MMAX?

They also come from different issuers: Calamos and iShares. Their fees differ too: 0.69% for CBXO and 0.50% for MMAX.