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

Defined Outcome | Exchange Traded Fund | NYSEArca
27.46 USD +0.08 (0.309%) ⇧ (April 17, 2026, 9:30 a.m. EDT)

Short-term: ★★☆☆☆ | Long-term: ★★★☆☆ | Dividends: ☆☆☆☆☆
Hot Take | April 11, 2026, 4:26 p.m. EDT

The recent price history of CPST shows relatively stable movement, with a slight upward trend over the past 14 days, hovering around the previous close of $27.24. However, the lack of significant momentum or clear directional movement suggests a neutral to slightly bearish outlook for short-term traders. The absence of recent dividends further limits its appeal for dividend-focused investors. While the long-term fundamentals appear to be somewhat stable, the lack of a clear growth trajectory or strong fundamentals makes it a mediocre long-term investment. Overall, CPST is not a compelling option for either short-term or long-term strategies without further positive catalysts.

Model Selection — Backtest MAE (log-scale, lower is better)
ModelMAE
AutoTheta ✓0.004658
MSTL0.009105
AutoARIMA0.009179
AutoETS0.009198

Forecast horizon: 45 days | Selected: AutoTheta

Forecast Reliability
Score 36%
H-stat 21.09
Ljung-Box p 0.000
Jarque-Bera p 0.037
Excess Kurtosis 0.18

Info Dump

Attribute Value
All Time High 27.465
All Time Low 24.63
Ask 41.14
Ask Size 500
Average Daily Volume10 Day 1,030
Average Daily Volume3 Month 2,265
Average Volume 2,265
Average Volume10Days 1,030
Beta3 Year 0.0
Bid 13.72
Bid Size 200
Category Defined Outcome
Crypto Tradeable 0
Currency USD
Custom Price Alert Confidence HIGH
Day High 27.4647
Day Low 27.4647
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 27.12762
Fifty Day Average Change 0.33708
Fifty Day Average Change Percent 0.012425712
Fifty Two Week Change Percent 10.706782
Fifty Two Week High 27.4647
Fifty Two Week High Change 0.0
Fifty Two Week High Change Percent 0.0
Fifty Two Week Low 24.732
Fifty Two Week Low Change 2.7327003
Fifty Two Week Low Change Percent 0.11049249
Fifty Two Week Range 24.732 - 27.4647
First Trade Date Milliseconds 1,725,370,200,000
Full Exchange Name NYSEArca
Fund Family Calamos
Fund Inception Date 1,725,321,600
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 27.44
Net Assets 31,762,284.0
Net Expense Ratio 0.69
Open 27.4
Previous Close 27.38
Price Hint 2
Quote Source Name Delayed Quote
Quote Type ETF
Region US
Regular Market Change 0.0847015
Regular Market Change Percent 0.309355
Regular Market Day High 27.4647
Regular Market Day Low 27.4647
Regular Market Day Range 27.4647 - 27.4647
Regular Market Open 27.4
Regular Market Previous Close 27.38
Regular Market Price 27.4647
Regular Market Time 1,776,432,601
Regular Market Volume 2,040
Short Name Calamos S&P 500 Structured Alt
Source Interval 15
Symbol CPST
Total Assets 31,762,284
Tradeable 0
Trailing Annual Dividend Rate 0.0
Trailing Annual Dividend Yield 0.0
Trailing Peg Ratio None
Trailing Three Month Nav Returns -0.22148
Trailing Three Month Returns -0.22148
Triggerable 1
Two Hundred Day Average 26.825865
Two Hundred Day Average Change 0.6388359
Two Hundred Day Average Change Percent 0.023814177
Type Disp ETF
Volume 2,040
Yield 0.0
Ytd Return -0.22148