CPST Calamos S&P 500 Structured Alt Protection ETF September
CPST is the ticker symbol of Calamos S&P 500 Structured Alt Protection ETF September (ETF), which is listed on NYSE Arca. The symbol was previously used by Capstone Turbine Corporation, Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September.
CPST at a glance
- Symbol
- CPST
- Company / issuer
- Calamos S&P 500 Structured Alt Protection ETF September
- Security type
- ETF
- Exchange
- NYSE Arca
- Status
- Actively traded
- Seen in listing files
- Jan 2015 – present
- Sector
- Energy
- Industry
- Industrial Machinery/Components
- Country
- United States
- IPO year
- 2000
- Market cap
- $106.7 million (Mar 2021)
CPST ticker history
All companies and securities we have recorded under the symbol CPST, from periodic snapshots of US exchange listing files.
| Name | Security | First seen | Last seen |
|---|---|---|---|
| Capstone Turbine Corporation | Common Stock | Jan 2015 | Mar 2021 |
| Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September | — | Oct 2024 | Oct 2025 |
| Calamos S&P 500 Structured Alt Protection ETF September | — | Nov 2025 | present |
CPST price chart
Interactive chart provided by TradingView (loads third-party scripts).
Frequently asked questions
What company has the ticker symbol CPST?
CPST is the ticker symbol of Calamos S&P 500 Structured Alt Protection ETF September on NYSE Arca.
Is CPST still trading?
Yes. CPST appears in the current NYSE Arca listings as of Sep 2026.
Which companies have used the ticker CPST?
Our listing records show CPST used by: Capstone Turbine Corporation; Calamos ETF Trust Calamos S&P 500 Structured Alt Protection ETF September; Calamos S&P 500 Structured Alt Protection ETF September.
Which exchange is CPST listed on?
CPST is listed on NYSE Arca.