NYSE Arca · CPRO
Calamos Russell 2000 Structured Alt Protection ETF - October short interest
$28.56−0.07%
Close Sep 28, 2026 · split-adjustedShares short70Settled Sep 15, 2026
Change+1300.0%from 5
% of float—
Days to cover1.0Short volume 31.4% (10d)
Shares sold short by settlement
Settlement history
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| Sep 15, 2026 | 70 | +1300.0% | 1.0 |
| Aug 31, 2026 | 5 | 0.0% | 1.0 |
| Aug 14, 2026 | 5 | −99.2% | 1.0 |
| Jul 31, 2026 | 605 | +60400.0% | 1.0 |
| Jul 15, 2026 | 1 | 0.0% | 1.0 |
| May 15, 2026 | 1 | −87.5% | 1.0 |
| Apr 30, 2026 | 8 | −82.6% | 1.0 |
| Apr 15, 2026 | 46 | 0.0% | 1.0 |
| Mar 31, 2026 | 46 | −46.5% | 1.0 |
| Feb 27, 2026 | 86 | 0.0% | 1.0 |
| Feb 13, 2026 | 86 | 0.0% | 1.0 |
| Jan 30, 2026 | 86 | — | 1.0 |
Reading these numbers
Short interest is the number of shares sold short and not yet repurchased, reported by FINRA twice a month with a delay of about two weeks. As a share of float it shows how crowded the bet against Calamos Russell 2000 Structured Alt Protection ETF - October is; days to cover estimates how long buying those shares back would take at average volume. Compare it with the short squeeze monitor or learn more in our short interest guide.
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