CP
AMEX · CPST
Calamos S&P 500 Structured Alt Protection ETF - September
Financial Services · Asset Management
$28.24
Up+$0.03 (+0.11%)
Updated Oct 30, 2026, 9:16 AM
SID Score
4.2/10
Composite research score
Smart Money
—
Institutional and insider signal
- Market cap
- 25.38M
- P/E ratio
- -11.96
- Dividend yield
- 0.00%
- 52-week range
- $26.68 – $28.30
- Volume
- 173
- Avg. volume
- 3K
Price performance · CPST
CPST price history
1M range · 21 trading sessions · Daily adjusted prices
Prices through Oct 29, 2026
CPST closed at $28.24 after 21 trading sessions, up 0.37% for the selected period.
- Last close
- $28.24
- Period change
- +0.37%
- Period low
- $28.13
- Period high
- $28.25
Daily close
View OHLC price history
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Oct 29, 2026 | $28.2429 | $28.2429 | $28.2429 | $28.2429 | 173 |
| Oct 28, 2026 | $28.2001 | $28.21 | $28.2001 | $28.21 | 462 |
| Oct 27, 2026 | $28.24 | $28.27 | $28.2001 | $28.2311 | 3.96K |
| Oct 26, 2026 | $28.15 | $28.23 | $28.15 | $28.1899 | 1.32K |
| Oct 23, 2026 | $28.199 | $28.20 | $28.16 | $28.16 | 781 |
| Oct 22, 2026 | $28.1702 | $28.229 | $28.1701 | $28.1888 | 2.76K |
| Oct 21, 2026 | $28.26 | $28.26 | $28.24 | $28.24 | 109 |
| Oct 20, 2026 | $28.14 | $28.229 | $28.12 | $28.185 | 2.26K |
| Oct 19, 2026 | $28.175 | $28.22 | $28.175 | $28.18 | 1.32K |
| Oct 16, 2026 | $28.1801 | $28.1801 | $28.12 | $28.1306 | 6.02K |
| Oct 15, 2026 | $28.22 | $28.24 | $28.205 | $28.205 | 874 |
| Oct 14, 2026 | $28.24 | $28.24 | $28.1797 | $28.1797 | 4.88K |
| Oct 13, 2026 | $28.23 | $28.23 | $28.23 | $28.23 | 7 |
| Oct 12, 2026 | $28.25 | $28.279 | $28.22 | $28.2404 | 3.59K |
| Oct 9, 2026 | $28.269 | $28.269 | $28.221 | $28.2469 | 1.13K |
| Oct 8, 2026 | $28.25 | $28.25 | $28.2143 | $28.2143 | 1.2K |
| Oct 7, 2026 | $28.30 | $28.30 | $28.18 | $28.235 | 26.92K |
| Oct 6, 2026 | $28.24 | $28.24 | $28.24 | $28.24 | 777.58 |
| Oct 5, 2026 | $28.175 | $28.20 | $28.175 | $28.1875 | 1.99K |
| Oct 2, 2026 | $28.18 | $28.18 | $28.15 | $28.1699 | 2.06K |
| Oct 1, 2026 | $28.11 | $28.14 | $28.08 | $28.14 | 102.8K |
Latest CPST news
The latest Smart Investors Daily articles mentioning CPST.
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