NYSE Arca · CPSU

Calamos S&P 500 Structured Alt Protection ETF - June (CPSU)

$27.89−0.20%

Close Sep 28, 2026 · split-adjusted

Sep 28, 2026$27.89▲ 4.39% in range

Sep 29, 2025Low $26.69 · High $27.95Sep 28, 2026

What changed · written from our data

As of Sep 28, 2026

Calamos S&P 500 Structured Alt Protection ETF - June closed at $27.89 on Sep 28, down 0.20%, 0.2% below its 52-week closing high. Volume of 16 shares was 0.01× its 20-day average (below normal).

Split-adjusted performance: -0.1% over one month, +3.3% over six months, +4.5% over one year.

Short interest was 3.6K shares at the Sep 15 settlement, down 33.6% from the prior report (1.2 days to cover).

Market cap—

Revenue · quarter——

Diluted EPS——

P/E · TTM—

Net margin—

Dividend yieldNone

52-week range26.68 – 27.95−0.2% from high

Volume160.01× 20-day avg

Volatility · 60d2.5%Annualised

Short % of float—1.2 days to cover

Net cash—

Next earnings—Not scheduled

Split-adjusted performance

1W −0.1%1M −0.1%3M +1.2%6M +3.3%YTD +3.0%1Y +4.5%3Y —5Y —

Earnings reactions

History →

No reported quarters with price history yet.

Rank within industry

Not enough peers to rank

6-month momentum—

Revenue growth—

Net margin—

Value (low P/E)—

Size—

Short interest

Details →

Shares short3.6K−33.6% vs prior

Days to cover1.2Settled Sep 15

% of float—

Short vol. 10d38.3%of daily volume

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Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology