COLL
Collegium Pharmaceutical, Inc. Common Stock
stockNASDAQ
Market OpenOct 29, 2026 1:28:56 PM EDT
23.95USD+3.121%(+0.72)163,651
As of 2026-10-15, there were 5,375,283 shares short with a short interest of 16.82%.
COLL Short Interest - Official
COLL Short Position Change - Official
COLL Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-10-15 | 16.82 | 5,375,283 | 7.17 | -141,597 | -2.57 | 32,555,613 | 31,954,559 |
| 2026-09-30 | 17.21 | 5,516,880 | 6.06 | -158,235 | -2.79 | 32,555,613 | 32,048,790 |
| 2026-09-15 | 17.71 | 5,675,115 | 6.03 | -388,666 | -6.41 | 32,555,613 | 32,048,790 |
| 2026-08-31 | 18.92 | 6,063,781 | 8.08 | -459,521 | -7.04 | 30,999,193 | 32,048,790 |
| 2026-08-14 | 20.35 | 6,523,302 | 6.66 | +1,442,668 | +28.40 | 30,999,193 | 32,048,790 |
| 2026-07-31 | 15.85 | 5,080,634 | 17.35 | -152,880 | -2.92 | 32,433,779 | 32,048,790 |
| 2026-07-15 | 16.33 | 5,233,514 | 11.19 | -233,019 | -4.26 | 32,433,779 | 32,048,790 |
| 2026-06-30 | 17.06 | 5,466,533 | 10.84 | +138,190 | +2.59 | 32,433,779 | 32,048,790 |
| 2026-06-15 | 16.62 | 5,328,343 | 13.07 | -636,737 | -10.67 | 32,433,779 | 32,057,547 |
| 2026-05-15 | 18.68 | 5,965,080 | 11.18 | +28,663 | +0.48 | 32,433,779 | 31,937,497 |
| 2026-04-30 | 22.06 | 5,936,417 | 14.44 | -98,218 | -1.63 | 32,406,969 | 26,904,418 |
| 2026-04-15 | 22.43 | 6,034,635 | 10.74 | +504,228 | +9.12 | 32,406,969 | 26,904,418 |
| 2026-03-31 | 20.56 | 5,530,407 | 7.85 | +1,252,521 | +29.28 | 31,753,211 | 26,904,418 |
| 2026-03-13 | 15.90 | 4,277,886 | 7.39 | -321,149 | -6.98 | 31,753,211 | 26,904,418 |
| 2026-02-27 | 17.09 | 4,599,035 | 12.99 | -174,091 | -3.65 | 31,610,976 | 26,904,418 |
| 2026-02-13 | 17.74 | 4,773,126 | 15.75 | -20,691 | -0.43 | 31,610,976 | 26,904,418 |
| 2026-01-30 | 17.82 | 4,793,817 | 9.43 | -793,327 | -14.20 | 31,610,976 | 26,904,418 |
| 2026-01-15 | 20.77 | 5,587,144 | 10.81 | +171,870 | +3.17 | 31,610,976 | 26,904,418 |
| 2025-12-31 | 20.13 | 5,415,274 | 11.69 | +61,421 | +1.15 | 31,610,976 | 26,904,418 |
| 2025-12-15 | 19.90 | 5,353,853 | 10.18 | -524,194 | -8.92 | 31,610,976 | 26,904,418 |
| 2025-11-28 | 21.84 | 5,878,047 | 11.40 | +198,235 | +3.49 | 31,610,976 | 26,908,527 |
| 2025-11-14 | 20.11 | 5,679,812 | 7.61 | +303,397 | +5.64 | 31,610,976 | 28,237,137 |
| 2025-10-31 | 19.13 | 5,376,415 | 17.58 | +145,422 | +2.78 | 31,502,127 | 28,098,322 |
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.