Cboe BZX · CBXO
Calamos Bitcoin 90 Series Structured Alt Protection ETF - October short interest
$22.23+0.02%
Close Sep 29, 2026 · split-adjustedShares short658Settled Jun 15, 2026
Change−87.4%from 5.2K
% of float—
Days to cover1.0Short volume 18.4% (10d)
Shares sold short by settlement
Settlement history
| Settlement | Shares short | Change | Days to cover |
|---|---|---|---|
| Jun 15, 2026 | 658 | −87.4% | 1.0 |
| Mar 31, 2026 | 5.2K | +10.8% | 2.2 |
| Mar 13, 2026 | 4.7K | −34.9% | 1.6 |
| Feb 27, 2026 | 7.2K | +28.7% | 1.4 |
| Feb 13, 2026 | 5.6K | +155.9% | 1.0 |
| Jan 30, 2026 | 2.2K | +209.2% | 1.0 |
| Jan 15, 2026 | 709 | −71.4% | 1.0 |
| Dec 31, 2025 | 2.5K | −69.0% | 1.0 |
| Dec 15, 2025 | 8.0K | −80.9% | 1.0 |
| Nov 28, 2025 | 41.8K | +403.9% | 1.8 |
| Nov 14, 2025 | 8.3K | +54.1% | 1.0 |
| Oct 31, 2025 | 5.4K | — | 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 Bitcoin 90 Series 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