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Data from SEC EDGAR filings: company financials and 13F holdings.

Disclaimer: QW Research is provided for informational and educational purposes only and is not investment advice, a recommendation, or an offer to buy or sell any security. Data is derived from public SEC 13F filings and may be incomplete, delayed, or inaccurate. Do not make investment decisions based on this content. QW Research does not share in any profits and accepts no liability for any losses or decisions made using this information. Past performance does not predict future results.

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CPST — Fundamentals, Valuation & Ownership | QW Research

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

Neutral

Insufficient data to determine institutional momentum.

Data as of Q1 2026

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Institutional Ownership

—

of shares outstanding · 19 funds hold it

Ownership Change

—

vs last quarter

Crowding

75ᵗʰ pctl

more crowded than 75% of tracked stocks

Institutional Value

$22.3M

total position value across all 13F filers

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Institutional Holders

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No collected fundamentals to build a valuation model.

No collected fundamentals for a quality & risk analysis.

No collected fundamentals for a dividends & returns analysis.

No collected fundamentals for a capital-allocation analysis.

No collected fundamentals for a debt & leverage analysis.

Buy / Sell Volume by Quarter

Total shares institutions bought (green) vs sold (red) each quarter across all holders.

Inferred from quarter-over-quarter change in each fund's 13F position (new stakes count as buys, exits as sells). Not tick-level trades.

No sector peer set for this ticker (missing sector classification, or too few peers with collected financials).

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Institutional Trends (7 Quarters)

No trend data available for this metric.

Conviction-Weighted Ownership

Median weight: 0.03%Avg weight: 0.10%Max: 0.50%High conviction (>1%): 0

Calamos Advisors

OSAIC HOLDINGS,

Calamos Wealth Management

OLD MISSION CAPITAL

Camelot Portfolios,

COMMONWEALTH EQUITY SERVICES,

SUSQUEHANNA INTERNATIONAL GROUP, LLP

LeClair Wealth Partners

Blue Water Asset Management

Capital Analysts,

Crowding AnalysisModerate

Holders19of 5,944

Avg: 68

Uncrowded75th percentileCrowded

Institutional Activity

Buy/Sell Ratio0.56x

37th percentile

5 buying9 selling

+3

New

-3

Closed

+138K

Net shares

Ownership Concentration

Top 5: 82.5%Top 10: 92.8%

Calamos Advisors51.5%

OSAIC HOLDINGS,12.4%

Calamos Wealth Management12.2%

OLD MISSION CAPITAL3.4%

Camelot Portfolios,3.0%

Others (14)17.5%

Crowding AnalysisModerate

Holders19of 5,944

Avg: 68

Uncrowded75th percentileCrowded

Institutional Activity

Buy/Sell Ratio0.56x

37th percentile

5 buying9 selling

+3

New

-3

Closed

+138K

Net shares

Ownership Concentration

Top 5: 82.5%Top 10: 92.8%

Calamos Advisors51.5%

OSAIC HOLDINGS,12.4%

Calamos Wealth Management12.2%

OLD MISSION CAPITAL3.4%

Camelot Portfolios,3.0%

Others (14)17.5%

Performance vs. S&P 500

Total return (dividends reinvested) vs the market, from quarter-end prices.

$10,000 invested 2024-09

$11,093

CPST · +11%

$13,283

S&P 500 · +33%

−$2,190

behind the index

Total return (5Y)

+11%

S&P 500

+33%

vs. market

-22%

underperformed

Annualized

6.1%

mkt 17.6%

Volatility

3%

annualized

Beta

0.21

vs S&P 500

Growth of $10,000

Hover the chart to read any quarter

CPSTS&P 500

Year by year

Annual return vs the market

Hover a year to compare.

CPST (solid)S&P 500 (outline)Green = positive year, red = negative. Number = CPST's return.

Beat the market

0 / 3 yrs

0% win rate

Best year

+7%

2025

Worst year

+1%

2024

Worst drawdown

-1%

recovered in 1 qtr

Relative strength

Cumulative lead over the S&P 500

Above 0 = ahead of the S&P 500 since the window start; below 0 = behind. Rising means it's pulling ahead.

Downside

Drawdown from peak · max -1%

How far the stock fell below its prior peak. Deeper, longer drawdowns = a rougher ride to the same return.

Quarter-end, dividend-adjusted (total return). Beta & volatility from quarterly returns (annualized). Benchmark is the S&P 500 (SPY total return). Annual returns compound the quarters ending in each calendar year; the first and last years in a window may be partial. Past performance doesn't predict future results.

Ownership Map

Top 19 institutional holders — bubble size is position value, color is the move since last quarter. Hover any holder for detail.

Size by

Drag any bubble to rearrange · size = dollar value of the position

Ownership Map

Top 19 institutional holders — bubble size is position value, color is the move since last quarter. Hover any holder for detail.

Size by

Drag any bubble to rearrange · size = dollar value of the position