NYSE Arca · CPNQ
Calamos Nasdaq-100 Structured Alt Protection ETF - December short interest
$27.84−0.14%
Close Sep 28, 2026 · split-adjustedShares short82Settled Aug 14, 2026
Change−89.3%from 763
% of float—
Days to cover1.0Short volume 40.2% (10d)
Shares sold short by settlement
Settlement history
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| Aug 14, 2026 | 82 | −89.3% | 1.0 |
| Jul 15, 2026 | 763 | −35.2% | 1.0 |
| Jun 30, 2026 | 1.2K | +664.9% | 1.0 |
| Jun 15, 2026 | 154 | +9.2% | 1.0 |
| May 29, 2026 | 141 | −57.0% | 1.0 |
| May 15, 2026 | 328 | −61.9% | 1.0 |
| Apr 30, 2026 | 861 | −77.5% | 1.0 |
| Apr 15, 2026 | 3.8K | −23.0% | 1.0 |
| Mar 31, 2026 | 5.0K | +74.4% | 1.4 |
| Mar 13, 2026 | 2.8K | −43.7% | 1.0 |
| Feb 27, 2026 | 5.1K | +195.4% | 1.2 |
| Feb 13, 2026 | 1.7K | — | 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 Nasdaq-100 Structured Alt Protection ETF - December 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