CPSO · ARCA · ETF
Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) Price, Holdings & Fees
$724.60−0.35%−$2.53End-of-day price as of Oct 9, 2026
Sample prices
Prices on this page are generated sample data for development, not real market data.
Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) closed at $724.60 on Oct 9, 2026, down 0.35% from the previous close of $727.13.
Share price, past year
1Y −5.44%Monthly closing prices
| Date | Close |
|---|---|
| Oct 9, 2026 | $724.60 |
| Sep 30, 2026 | $740.47 |
| Aug 31, 2026 | $765.46 |
| Jul 31, 2026 | $757.22 |
| Jun 30, 2026 | $802.63 |
| May 29, 2026 | $816.04 |
| Apr 30, 2026 | $853.44 |
| Mar 31, 2026 | $845.67 |
| Feb 27, 2026 | $838.07 |
| Jan 30, 2026 | $851.10 |
| Dec 31, 2025 | $794.93 |
| Nov 28, 2025 | $774.63 |
| Oct 31, 2025 | $809.27 |
Key statistics
- Expense ratio
- —
- 52-week range
- $723.83 – $866.34
Fund profile
- Name
- Calamos S&P 500 Structured Alt Protection ETF - October
- Ticker
- CPSO
- Exchange
- ARCA
- Fund type
- ETF
- Fractional shares
- No
Frequently asked questions
What is CPSO's price?
Calamos S&P 500 Structured Alt Protection ETF - October (CPSO) closed at $724.60 on Oct 9, 2026, down 0.35% from the previous close of $727.13.
Sources and methodology
Calamos S&P 500 Structured Alt Protection ETF - October doesn't file N-PORT holdings reports with the SEC, so this page has no holdings. Prices are generated sample data for development. Data sources and disclosures