CBXY vs. SMAX

Last updated Jun 6, 2026

CBXY (Calamos Bitcoin 90 Series Structured Alt Protection ETF - July) and SMAX (iShares Large Cap Max Buffer Sep ETF) are both Defined Outcome funds. CBXY is passively managed, while SMAX is actively managed. At a 0.28 correlation, their price movements are largely independent. CBXY charges 0.69%/yr vs 0.50%/yr for SMAX.

Performance

CBXY vs. SMAX - Performance Comparison

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

Returns By Period

In the year-to-date period, CBXY achieves a -5.15% return, which is significantly lower than SMAX's 2.81% return.

CBXY

• 1D: -0.04%
• 1M: -0.79%
• YTD: -5.15%
• 6M: -6.12%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

SMAX

• 1D: -0.31%
• 1M: 0.48%
• YTD: 2.81%
• 6M: 3.13%
• 1Y: 8.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

CBXY vs. SMAX - Yearly Performance Comparison

	2026 (YTD)	2025
CBXY Calamos Bitcoin 90 Series Structured Alt Protection ETF - July	-5.15%	-6.16%
SMAX iShares Large Cap Max Buffer Sep ETF	2.81%	4.31%

Correlation

The correlation between CBXY and SMAX is 0.28, 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 Jul 9, 2025	0.28

Return for Risk

CBXY vs. SMAX — Risk / Return Rank

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

SMAX

SMAX Risk / Return Rank: 93
SMAX Sharpe Ratio Rank: 93
SMAX Sortino Ratio Rank: 95
SMAX Omega Ratio Rank: 95
SMAX Calmar Ratio Rank: 87
SMAX Martin Ratio Rank: 94

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.

CBXY vs. SMAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Calamos Bitcoin 90 Series Structured Alt Protection ETF - July (CBXY) and iShares Large Cap Max Buffer Sep ETF (SMAX). 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

	CBXY	SMAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	3.32	—
Sharpe Ratio (All Time) Calculated using the full available price history	-1.18	1.95	-3.13

Drawdowns

CBXY vs. SMAX - Drawdown Comparison

The maximum CBXY drawdown since its inception was -15.78%, which is greater than SMAX's maximum drawdown of -3.90%. Use the drawdown chart below to compare losses from any high point for CBXY and SMAX.

Drawdown Indicators

	CBXY	SMAX	Difference
Max Drawdown Largest peak-to-trough decline	-15.78%	-3.90%	-11.88%
Max Drawdown (1Y) Largest decline over 1 year	—	-1.91%	—
Current Drawdown Current decline from peak	-15.66%	-0.37%	-15.29%
Average Drawdown Average peak-to-trough decline	-8.96%	-0.40%	-8.56%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.35%	—

Volatility

Volatility by Period

	CBXY	SMAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.49%	—
Volatility (6M) Calculated over the trailing 6-month period	—	2.13%	—
Volatility (1Y) Calculated over the trailing 1-year period	10.16%	2.69%	+7.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.16%	3.67%	+6.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	10.16%	3.67%	+6.49%

CBXY vs. SMAX - Expense Ratio Comparison

CBXY has a 0.69% expense ratio, which is higher than SMAX's 0.50% expense ratio.

Dividends

CBXY vs. SMAX - Dividend Comparison

CBXY's dividend yield for the trailing twelve months is around 1.45%, more than SMAX's 0.95% yield.

Position	TTM	2025	2024
CBXY Calamos Bitcoin 90 Series Structured Alt Protection ETF - July	1.45%	1.38%	0.00%
SMAX iShares Large Cap Max Buffer Sep ETF	0.95%	0.98%	0.27%

Frequently Asked Questions

Can I hold both CBXY and SMAX in my portfolio?

CBXY and SMAX have a correlation of 0.28, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, CBXY or SMAX?

On fees, SMAX 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, CBXY or SMAX?

SMAX is cheaper with a 0.50% expense ratio, compared with 0.69% for CBXY.

Which ETF pays a higher dividend yield, CBXY or SMAX?

CBXY has the higher dividend yield at 1.45%, compared with 0.95% for SMAX.

What is the main difference between CBXY and SMAX?

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