SPYX vs. CPSP

Last updated Jun 4, 2026

SPYX (State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF) and CPSP (Calamos S&P 500 Structured Alt Protection ETF - April) are both S&P 500 funds. SPYX is passively managed, while CPSP is actively managed. Over the past year, SPYX returned 27.01% vs 7.13% for CPSP. A 0.76 correlation means they provide meaningful diversification when combined. SPYX charges 0.20%/yr vs 0.69%/yr for CPSP.

Performance

SPYX vs. CPSP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) and Calamos S&P 500 Structured Alt Protection ETF - April (CPSP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, SPYX achieves a 10.04% return, which is significantly higher than CPSP's 3.18% return.

SPYX

• 1D: -0.77%
• 1M: 5.02%
• YTD: 10.04%
• 6M: 10.06%
• 1Y: 27.01%
• 3Y*: 22.32%
• 5Y*: 13.41%
• 10Y*: 15.55%

CPSP

• 1D: 0.00%
• 1M: 0.60%
• YTD: 3.18%
• 6M: 3.74%
• 1Y: 7.13%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

SPYX vs. CPSP - Yearly Performance Comparison

	2026 (YTD)	2025
SPYX State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF	10.04%	23.24%
CPSP Calamos S&P 500 Structured Alt Protection ETF - April	3.18%	5.46%

Correlation

The correlation between SPYX and CPSP is 0.75, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.75
Correlation (All Time) Calculated using the full available price history since Apr 2, 2025	0.76

The correlation between SPYX and CPSP has been stable across timeframes, ranging from 0.75 to 0.76 - a consistent structural relationship.

Return for Risk

SPYX vs. CPSP — Risk / Return Rank

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

SPYX

SPYX Risk / Return Rank: 64
SPYX Sharpe Ratio Rank: 66
SPYX Sortino Ratio Rank: 65
SPYX Omega Ratio Rank: 66
SPYX Calmar Ratio Rank: 55
SPYX Martin Ratio Rank: 68

CPSP

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

SPYX vs. CPSP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) and Calamos S&P 500 Structured Alt Protection ETF - April (CPSP). 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.

	SPYX	CPSP	Difference
Sharpe ratio: Return per unit of total volatility	2.24	5.08	-2.84
Sortino ratio: Return per unit of downside risk	3.07	9.15	-6.07
Omega ratio: Gain probability vs. loss probability	1.40	2.31	-0.90
Calmar ratio: Return relative to maximum drawdown	2.76	19.11	-16.35
Martin ratio: Return relative to average drawdown	12.68	96.35	-83.67
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

SPYX vs. CPSP - Sharpe Ratio Comparison

The current SPYX Sharpe Ratio is 2.24, which is lower than the CPSP Sharpe Ratio of 5.08. The chart below compares the historical Sharpe Ratios of SPYX and CPSP, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	SPYX	CPSP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.24	5.08	-2.84
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.79	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.87	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.83	3.17	-2.34

Drawdowns

SPYX vs. CPSP - Drawdown Comparison

The maximum SPYX drawdown since its inception was -32.84%, which is greater than CPSP's maximum drawdown of -1.73%. Use the drawdown chart below to compare losses from any high point for SPYX and CPSP.

Drawdown Indicators

	SPYX	CPSP	Difference
Max Drawdown Largest peak-to-trough decline	-32.84%	-1.73%	-31.11%
Max Drawdown (1Y) Largest decline over 1 year	-9.84%	-0.37%	-9.47%
Max Drawdown (3Y) Largest decline over 3 years	-18.74%	—	—
Max Drawdown (5Y) Largest decline over 5 years	-26.14%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-32.84%	—	—
Current Drawdown Current decline from peak	-0.77%	0.00%	-0.77%
Average Drawdown Average peak-to-trough decline	-4.53%	-0.08%	-4.45%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.14%	0.07%	+2.07%

Volatility

SPYX vs. CPSP - Volatility Comparison

State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF (SPYX) has a higher volatility of 3.00% compared to Calamos S&P 500 Structured Alt Protection ETF - April (CPSP) at 0.32%. This indicates that SPYX's price experiences larger fluctuations and is considered to be riskier than CPSP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	SPYX	CPSP	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.00%	0.32%	+2.68%
Volatility (6M) Calculated over the trailing 6-month period	9.23%	0.84%	+8.39%
Volatility (1Y) Calculated over the trailing 1-year period	12.12%	1.42%	+10.70%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.05%	2.37%	+14.68%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.01%	2.37%	+15.64%

SPYX vs. CPSP - Expense Ratio Comparison

SPYX has a 0.20% expense ratio, which is lower than CPSP's 0.69% expense ratio.

Dividends

SPYX vs. CPSP - Dividend Comparison

SPYX's dividend yield for the trailing twelve months is around 0.84%, while CPSP has not paid dividends to shareholders.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPSP Calamos S&P 500 Structured Alt Protection ETF - April	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
SPYX State Street SPDR S&P 500 Fossil Fuel Reserves Free ETF	0.84%	0.91%	1.05%	1.21%	1.41%	1.04%	1.33%	1.56%	1.92%	1.68%	1.91%	0.16%

Frequently Asked Questions

Can I hold both SPYX and CPSP in my portfolio?

SPYX and CPSP have a correlation of 0.75, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, SPYX or CPSP?

SPYX has higher volatility (3.00%) compared to CPSP (0.32%). In terms of maximum drawdown, SPYX dropped -32.84% vs CPSP's -1.73%.

Which ETF is better, SPYX or CPSP?

On 1-year performance, SPYX leads with 27.01% vs 7.13% for CPSP. On fees, SPYX is cheaper at 0.20% per year. On volatility, CPSP has been the lower-risk option at 0.32%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, SPYX or CPSP?

Over the 1-year period, SPYX has performed better with a 27.01% return vs 7.13%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, SPYX or CPSP?

SPYX is cheaper with a 0.20% expense ratio, compared with 0.69% for CPSP.

Which ETF pays a higher dividend yield, SPYX or CPSP?

SPYX has the higher dividend yield at 0.84%, compared with 0.00% for CPSP.

What is the main difference between SPYX and CPSP?

They also come from different issuers: State Street and Calamos. Their fees differ too: 0.20% for SPYX and 0.69% for CPSP.

Which has better risk-adjusted returns?

CPSP currently has the higher Sharpe Ratio (5.08 vs 2.24), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.