CPST
Calamos S&P 500 Structured Alt Protection ETF September
$28.07
$0.00 (+0.01%)
Real-time · Sep 1, 2026 7:47 PM ET
Key Statistics
Net Assets (AUM)
$520.60M
Expense Ratio
See prospectus
Previous Close
$28.13
Day Range
$28.04 – $28.10
52-Week Range
$26.46 – $28.13
Volume
102.60K
Avg Vol (50D)
-
Beta
0.18
Historical Performance
1M
+0.34%
3M
+1.18%
6M
+3.33%
YTD
+3.88%
1Y
+5.69%
3Y
—
5Y
—
Total return including reinvested distributions, from adjusted closing prices.
Price History
Price history is being compiled for this fund.
Top Holdings
Goldman Sachs & Co. LLC
103.64%
Goldman Sachs & Co. LLC
2.79%
Goldman Sachs & Co. LLC
-6.89%
Top 3 holdings as of Jan 31, 2026 · source: SEC N-PORT. Full holdings & prospectus →
CPST News
- Trading the Move, Not the Narrative: (CPST) Edition
- (CPST) Price Dynamics and Execution-Aware Positioning
- (CPST) as a Liquidity Pulse for Institutional Tactics
- (CPST) Risk Channels and Responsive Allocation
- Calamos S&P 500 Structured Alt Protection ETF – September (NYSEARCA:CPST) Stock Price Down 0.1% – Should You Sell?
Data for CPST is aggregated from third-party providers (Tiingo, Nasdaq, Finnhub) and SEC filings, may be delayed at least 20 minutes, and may be incomplete or contain errors. Nothing here is investment advice. Verify with the official prospectus before investing.