# Calamos S&P 500 Structured Alt Protection ETF - December (CPSD)

> Source: Nexqual · https://nexqual.com/CPSD · data as of 2026-10-23 19:40 UTC · cite as "Nexqual, Calamos S&P 500 Structured Alt Protection ETF - December (CPSD), nexqual.com/CPSD" · informational, not investment advice.

**Price:** USD 27.24 (-0.04% on the day) · last close of Oct 23, 2026; US market closed, not a live price. Prev close 27.25 · day 27.24–27.27 · 52w 25.59–27.28 · market cap null · PCX

## Key facts
- Total return with dividends: 1Y +6.0% vs S&P 500 +14.0%; 5Y +12.2% vs S&P 500 +76.9%.

## Total return (dividends reinvested)
|  | 1Y (from 2025-10-24) | 5Y (from 2024-12-02) |
|---|---|---|
| Total return | +6.0% | +12.2% |
| S&P 500 (SPY) | +14.0% | +76.9% |
| Per year | +6.0% | +6.3% |
| Volatility (annualized) | 2.2% | 2.9% |
| Max drawdown | -1.5% (Feb 2026→Mar 2026) | -3.0% (Feb 2025→Mar 2025) |

## Peers
CPSJ (Calamos S&P 500 Structured Alt ) USD 28.02 -0.28% · CPSN (Calamos S&P 500 Structured Alt ) USD 28.34 +0.07% · CPSA (Calamos S&P 500 Structured Alt ) USD 28.17 -0.11% · CPNQ (Calamos Nasdaq-100 Structured A) USD 27.86 -0.20% · CPSO (Calamos S&P 500 Structured Alt ) USD 28.45 -0.04%

## More
Full page: https://nexqual.com/CPSD · 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