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Calamos S&P 500 Structured Alt Protection ETF - September (CPST)

Defined Outcome | Exchange Traded Fund | NYSEArca
28.13 USD -0.07 (-0.264%) ⇩ (Oct. 16, 2026, 3:56 p.m. EDT)

Short-term:★★⯪☆☆Long-term:★★⯪☆☆Dividends:☆☆☆☆☆
Hot Take ↕ | Oct. 10, 2026, 2:55 a.m. EDT

The short-term outlook remains neutral as the ETF trades within a tight range near its 52-week highs, showing no explosive momentum despite a slight uptick in recent sessions. The statistical forecast model indicates a high-confidence, albeit minimal, upward drift over the next 45 days, suggesting a stable but unexciting near-term path rather than a breakout opportunity. However, the long-term investment case is fundamentally compromised because the security is a newly listed instrument with less than a year of price history, making it impossible to assess multi-year business quality or structural trends. Furthermore, the complete absence of dividend payments over the last five years eliminates any income component, leaving investors exposed to pure capital appreciation risks without the cushion of a yield.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoETS ✓0.001698
AutoARIMA0.001782
MSTL0.001787
AutoTheta0.002237

Forecast horizon: 45 days | Selected: AutoETS

Forecast Reliability
Score 74%
H-stat 4.04
Ljung-Box p 0.000
Jarque-Bera p 0.014
Excess Kurtosis 0.33

Info Dump

Attribute Value
All Time High 28.3
All Time Low 24.63
Ask 28.17
Ask Size 100
Average Daily Volume10 Day 4,360
Average Daily Volume3 Month 8,166
Average Volume 8,166
Average Volume10Days 4,360
Beta3 Year 0.0
Bid 28.12
Bid Size 100
Category Defined Outcome
Crypto Tradeable 0
Currency USD
Custom Price Alert Confidence HIGH
Day High 28.1801
Day Low 28.12
Display Name S&P 500 Structured Alt
Dividend Yield 0.0
Esg Populated 0
Exchange PCX
Exchange Data Delayed By 0
Exchange Timezone Name America/New_York
Exchange Timezone Short Name EDT
Fifty Day Average 28.09924
Fifty Day Average Change 0.031360626
Fifty Day Average Change Percent 0.0011160667
Fifty Two Week Change Percent 5.105269
Fifty Two Week High 28.3
Fifty Two Week High Change -0.16939926
Fifty Two Week High Change Percent -0.0059858398
Fifty Two Week Low 26.68
Fifty Two Week Low Change 1.4505997
Fifty Two Week Low Change Percent 0.054370303
Fifty Two Week Range 26.68 - 28.3
First Trade Date Milliseconds 1,725,370,200,000
Full Exchange Name NYSEArca
Fullday Change -0.09989929
Fullday Change Percent -0.35400298
Fullday Price 28.1306
Fund Family Calamos
Fund Inception Date 1,724,976,000
Gmt Off Set Milliseconds -14,400,000
Has Pre Post Market Data 1
Language en-US
Legal Type Exchange Traded Fund
Long Business Summary Under normal market conditions, the fund will invest substantially all of its assets in FLexible EXchange Options ("FLEX Options") that reference the price performance of the SPDR®? S&P 500®? ETF Trust (the "Underlying ETF"). The fund is non-diversified.
Long Name Calamos S&P 500 Structured Alt Protection ETF - September
Market us_market
Market State CLOSED
Max Age 86,400
Message Board Id finmb_1893278875
Nav Price 28.31
Net Assets 37,344,592.0
Net Expense Ratio 0.69
Open 28.1801
Previous Close 28.205
Price Hint 2
Quote Source Name Delayed Quote
Quote Type ETF
Region US
Regular Market Change -0.0743999
Regular Market Change Percent -0.263783
Regular Market Day High 28.1801
Regular Market Day Low 28.12
Regular Market Day Range 28.12 - 28.1801
Regular Market Open 28.1801
Regular Market Previous Close 28.205
Regular Market Price 28.1306
Regular Market Time 1,792,180,575
Regular Market Volume 4,266
Short Name Calamos S&P 500 Structured Alt
Source Interval 15
Symbol CPST
Total Assets 37,344,592
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Peg Ratio None
Trailing Three Month Nav Returns 1.1486
Trailing Three Month Returns 1.1486
Triggerable 1
Two Hundred Day Average 27.596945
Two Hundred Day Average Change 0.53365517
Two Hundred Day Average Change Percent 0.019337473
Type Disp ETF
Volume 4,266
Yield 0.0
Ytd Return 4.02362