XOEF vs. CPSM

Last updated Apr 2, 2026

Compare and contrast key facts about iShares S&P 500 ex S&P 100 ETF (XOEF) and Calamos S&P 500 Structured Alt Protection ETF - May (CPSM).

XOEF and CPSM are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. XOEF is a passively managed fund by iShares that tracks the performance of the S&P 500 Ex-S&P 100 Select Index. It was launched on Jul 8, 2025. CPSM is an actively managed fund by Calamos. It was launched on May 1, 2024.

Performance

XOEF vs. CPSM - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares S&P 500 ex S&P 100 ETF (XOEF) and Calamos S&P 500 Structured Alt Protection ETF - May (CPSM). The values are adjusted to include any dividend payments, if applicable.

XOEF vs. CPSM - Yearly Performance Comparison

	2026 (YTD)	2025
XOEF iShares S&P 500 ex S&P 100 ETF	2.96%	4.15%
CPSM Calamos S&P 500 Structured Alt Protection ETF - May	1.00%	2.67%

Returns By Period

In the year-to-date period, XOEF achieves a 2.96% return, which is significantly higher than CPSM's 1.00% return.

XOEF

• 1D: 0.68%
• 1M: -4.86%
• YTD: 2.96%
• 6M: 3.90%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

CPSM

• 1D: 0.19%
• 1M: 0.26%
• YTD: 1.00%
• 6M: 2.12%
• 1Y: 7.35%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

XOEF vs. CPSM - Expense Ratio Comparison

XOEF has a 0.20% expense ratio, which is lower than CPSM's 0.69% expense ratio.

CPSM

Calamos S&P 500 Structured Alt Protection ETF - May

XOEF

iShares S&P 500 ex S&P 100 ETF

Return for Risk

XOEF vs. CPSM — Risk / Return Rank

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

CPSM

CPSM Risk / Return Rank: 71
CPSM Sharpe Ratio Rank: 60
CPSM Sortino Ratio Rank: 65
CPSM Omega Ratio Rank: 94
CPSM Calmar Ratio Rank: 56
CPSM Martin Ratio Rank: 82

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.

XOEF vs. CPSM - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 ex S&P 100 ETF (XOEF) and Calamos S&P 500 Structured Alt Protection ETF - May (CPSM). 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

	XOEF	CPSM	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	1.10	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.79	1.48	-0.70

Correlation

The correlation between XOEF and CPSM is 0.57, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

XOEF vs. CPSM - Dividend Comparison

XOEF's dividend yield for the trailing twelve months is around 0.87%, while CPSM has not paid dividends to shareholders.

	TTM	2025
XOEF iShares S&P 500 ex S&P 100 ETF	0.87%	0.63%
CPSM Calamos S&P 500 Structured Alt Protection ETF - May	0.00%	0.00%

Drawdowns

XOEF vs. CPSM - Drawdown Comparison

The maximum XOEF drawdown since its inception was -7.66%, which is greater than CPSM's maximum drawdown of -5.19%. Use the drawdown chart below to compare losses from any high point for XOEF and CPSM.

Drawdown Indicators

	XOEF	CPSM	Difference
Max Drawdown Largest peak-to-trough decline	-7.66%	-5.19%	-2.47%
Max Drawdown (1Y) Largest decline over 1 year	—	-4.99%	—
Current Drawdown Current decline from peak	-4.97%	0.00%	-4.97%
Average Drawdown Average peak-to-trough decline	-1.43%	-0.21%	-1.22%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.77%	—

Volatility

Volatility by Period

	XOEF	CPSM	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.70%	—
Volatility (6M) Calculated over the trailing 6-month period	—	1.19%	—
Volatility (1Y) Calculated over the trailing 1-year period	12.82%	6.69%	+6.13%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.82%	5.30%	+7.52%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	12.82%	5.30%	+7.52%