AIOO vs. CPSP

Last updated Jun 3, 2026

AIOO (AllianzIM U.S. Equity Buffer100 Protection ETF) and CPSP (Calamos S&P 500 Structured Alt Protection ETF - April) are both exchange-traded funds - AIOO is a Defined Outcome fund actively managed by Allianz, while CPSP is a S&P 500 fund actively managed by Calamos. Both are actively managed. A 0.55 correlation means they provide meaningful diversification when combined. AIOO charges 0.64%/yr vs 0.69%/yr for CPSP.

Performance

AIOO vs. CPSP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in AllianzIM U.S. Equity Buffer100 Protection ETF (AIOO) 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, AIOO achieves a 2.48% return, which is significantly lower than CPSP's 3.18% return.

AIOO

• 1D: 0.04%
• 1M: 1.11%
• YTD: 2.48%
• 6M: 2.55%
• 1Y: —
• 3Y*: —
• 5Y*: —
• 10Y*: —

CPSP

• 1D: 0.02%
• 1M: 0.52%
• YTD: 3.18%
• 6M: 3.78%
• 1Y: 7.32%
• 3Y*: —
• 5Y*: —
• 10Y*: —

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

AIOO vs. CPSP - Yearly Performance Comparison

	2026 (YTD)	2025
AIOO AllianzIM U.S. Equity Buffer100 Protection ETF	2.48%	2.67%
CPSP Calamos S&P 500 Structured Alt Protection ETF - April	3.18%	2.96%

Correlation

The correlation between AIOO and CPSP is 0.55, 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 Jul 2, 2025	0.55

Return for Risk

AIOO vs. CPSP — Risk / Return Rank

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

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: 99
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.

AIOO vs. CPSP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for AllianzIM U.S. Equity Buffer100 Protection ETF (AIOO) 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.

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

Sharpe Ratios by Period

	AIOO	CPSP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	—	5.18	—
Sharpe Ratio (All Time) Calculated using the full available price history	2.88	3.18	-0.30

Drawdowns

AIOO vs. CPSP - Drawdown Comparison

The maximum AIOO drawdown since its inception was -0.74%, smaller than the maximum CPSP drawdown of -1.73%. Use the drawdown chart below to compare losses from any high point for AIOO and CPSP.

Drawdown Indicators

	AIOO	CPSP	Difference
Max Drawdown Largest peak-to-trough decline	-0.74%	-1.73%	+0.99%
Max Drawdown (1Y) Largest decline over 1 year	—	-0.37%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.17%	-0.08%	-0.09%
Ulcer Index Depth and duration of drawdowns from previous peaks	—	0.07%	—

Volatility

Volatility by Period

	AIOO	CPSP	Difference
Volatility (1M) Calculated over the trailing 1-month period	—	0.34%	—
Volatility (6M) Calculated over the trailing 6-month period	—	0.84%	—
Volatility (1Y) Calculated over the trailing 1-year period	1.98%	1.42%	+0.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	1.98%	2.38%	-0.40%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	1.98%	2.38%	-0.40%

AIOO vs. CPSP - Expense Ratio Comparison

AIOO has a 0.64% expense ratio, which is lower than CPSP's 0.69% expense ratio.

Dividends

AIOO vs. CPSP - Dividend Comparison

Neither AIOO nor CPSP has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both AIOO and CPSP in my portfolio?

AIOO and CPSP have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, AIOO or CPSP?

On fees, AIOO is cheaper at 0.64% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, AIOO or CPSP?

AIOO is cheaper with a 0.64% expense ratio, compared with 0.69% for CPSP.

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

AIOO and CPSP have nearly identical dividend yields, around 0.00%.

What is the main difference between AIOO and CPSP?

AIOO is categorized as Defined Outcome, while CPSP is S&P 500. They also come from different issuers: Allianz and Calamos. Their fees differ too: 0.64% for AIOO and 0.69% for CPSP.