# Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS)

> Source: Nexqual · https://nexqual.com/CPNS · data as of 2026-10-23 17:45 UTC · cite as "Nexqual, Calamos Nasdaq-100 Structured Alt Protection ETF - September (CPNS), nexqual.com/CPNS" · informational, not investment advice.

**Price:** USD 28.42 (-0.10% on the day) · last close of Oct 23, 2026; US market closed, not a live price. Prev close 28.45 · day 28.4–28.43 · 52w 26.93–28.89 · market cap null · PCX

## Key facts
- Total return with dividends: 1Y +4.9% vs S&P 500 +14.0%; 5Y +15.3% vs S&P 500 +76.9%.

## Total return (dividends reinvested)
|  | 1Y (from 2025-10-24) | 5Y (from 2024-09-02) |
|---|---|---|
| Total return | +4.9% | +15.3% |
| S&P 500 (SPY) | +14.0% | +76.9% |
| Per year | +4.9% | +6.9% |
| Volatility (annualized) | 2.4% | 3.2% |
| Max drawdown | -1.3% (Jan 2026→Mar 2026) | -3.8% (Feb 2025→Mar 2025) |

## Peers
CPNJ (Calamos Nasdaq - 100 Structured) USD 27.63 -0.05% · CPNQ (Calamos Nasdaq-100 Structured A) USD 27.86 -0.20% · CPSA (Calamos S&P 500 Structured Alt ) USD 28.17 -0.11% · CPRO (Calamos Russell 2000 Structured) USD 28.65 -0.07% · CPSN (Calamos S&P 500 Structured Alt ) USD 28.34 +0.07%

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