# Calamos S&P 500 Structured Alt Protection ETF - August (CPSA)

> Source: Nexqual · https://nexqual.com/CPSA · data as of 2026-10-23 19:44 UTC · cite as "Nexqual, Calamos S&P 500 Structured Alt Protection ETF - August (CPSA), nexqual.com/CPSA" · informational, not investment advice.

**Price:** USD 28.17 (-0.11% on the day) · last close of Oct 23, 2026; US market closed, not a live price. Prev close 28.2 · day 28.17–28.22 · 52w 26.48–28.27 · market cap null · PCX

## Key facts
- Total return with dividends: 1Y +5.3% vs S&P 500 +14.0%; 5Y +16.3% vs S&P 500 +76.9%.

## Total return (dividends reinvested)
|  | 1Y (from 2025-10-24) | 5Y (from 2024-07-29) |
|---|---|---|
| Total return | +5.3% | +16.3% |
| S&P 500 (SPY) | +14.0% | +76.9% |
| Per year | +5.3% | +7.0% |
| Volatility (annualized) | 2.1% | 3.6% |
| Max drawdown | -1.5% (Feb 2026→Mar 2026) | -4.5% (Feb 2025→Mar 2025) |

## Peers
CPSJ (Calamos S&P 500 Structured Alt ) USD 28.02 -0.28% · CPSM (Calamos S&P 500 Structured Alt ) USD 29.68 -0.03% · CPNJ (Calamos Nasdaq - 100 Structured) USD 27.63 -0.05% · CPSN (Calamos S&P 500 Structured Alt ) USD 28.34 +0.07% · CPSO (Calamos S&P 500 Structured Alt ) USD 28.45 -0.04%

## More
Full page: https://nexqual.com/CPSA · Free keyless MCP server with the same data and citations: https://mcp.nexqual.com/mcp · Guide for agents: https://nexqual.com/agents · https://nexqual.com/llms.txt