CPSY
Calamos S&P 500 Structured Alt Protection ETF - January
stockNYSEETF
Market OpenOct 5, 2026 10:16:18 AM EDT
26.18USD+0.076%(+0.02)1
26.10Bid26.19Ask0.09SpreadAs of 2026-09-15, there were 5,530 shares short with a short interest of 0.50%.
CPSY Short Interest - Official
Short Interest
CPSY Short Position Change - Official
Short Position Change
CPSY Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 0.50 | 5,530 | 6.02 | -3,143 | -36.24 | 1,100,000 | 1,100,000 |
| 2026-08-31 | 0.79 | 8,673 | 14.80 | -4,065 | -31.91 | 1,100,000 | 1,100,000 |
| 2026-08-14 | 1.27 | 12,738 | 10.61 | -281 | -2.16 | 1,000,000 | 1,000,000 |
| 2026-07-31 | 1.30 | 13,019 | 4.98 | -2,888 | -18.16 | 1,000,000 | 1,000,000 |
| 2026-07-15 | 1.59 | 15,907 | 35.27 | +5,288 | +49.80 | 1,000,000 | 1,000,000 |
| 2026-06-30 | 1.06 | 10,619 | 19.66 | +1,442 | +15.71 | 1,000,000 | 1,000,000 |
| 2026-06-15 | 0.92 | 9,177 | 8.57 | -2,519 | -21.54 | 1,000,000 | 1,000,000 |
| 2026-05-15 | 1.17 | 11,696 | 6.30 | +697 | +6.34 | 1,000,000 | 1,000,000 |
| 2026-04-30 | 1.10 | 10,999 | 10.22 | +142 | +1.31 | 1,000,000 | 1,000,000 |
| 2026-04-15 | 1.09 | 10,857 | 25.25 | -36 | -0.33 | 1,000,000 | 1,000,000 |
| 2026-03-31 | 1.09 | 10,893 | 6.20 | -1,866 | -14.62 | 1,000,000 | 1,000,000 |
| 2026-03-13 | 1.28 | 12,759 | 9.31 | -2,390 | -15.78 | 1,000,000 | 1,000,000 |
| 2026-02-27 | 1.51 | 15,149 | 9.14 | -2,783 | -15.52 | 1,000,000 | 1,000,000 |
| 2026-02-13 | 1.79 | 17,932 | 3.02 | -14,788 | -45.20 | 1,000,000 | 1,000,000 |
| 2026-01-30 | 3.27 | 32,720 | 7.25 | +10,870 | +49.75 | 1,000,000 | 1,000,000 |
| 2026-01-15 | 2.43 | 21,850 | 1.17 | +20,951 | +2,330.48 | 900,000 | 900,000 |
| 2025-12-31 | 0.10 | 899 | 1.00 | -2,667 | -74.79 | 900,000 | 900,000 |
| 2025-12-15 | 0.40 | 3,566 | 1.00 | +2,742 | +332.77 | 900,000 | 900,000 |
| 2025-11-28 | 0.09 | 824 | 1.00 | -73 | -8.14 | 900,000 | 900,000 |
| 2025-11-14 | 0.10 | 897 | 1.00 | +6 | +0.67 | 900,000 | 900,000 |
| 2025-10-31 | 0.10 | 891 | 1.00 | -1,476 | -62.36 | 900,000 | 900,000 |
| 2025-10-15 | 0.26 | 2,367 | 6.08 | +1,969 | +494.72 | 900,000 | 900,000 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.