ACAD
Acadia Pharmaceuticals Inc.
stockNASDAQ
Market OpenNov 10, 2026 1:57:00 PM EST
18.07USD+9.515%(+1.57)3,880,476
Pre-marketNov 10, 2026 9:19:30 AM EST
16.50USD0.000%(0.00)
As of 2026-10-15, there were 9,094,151 shares short with a short interest of 5.35%.
ACAD Short Interest - Official
ACAD Short Position Change - Official
ACAD 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 | 5.35 | 9,094,151 | 4.58 | +818,233 | +9.89 | 172,305,518 | 170,043,105 |
| 2026-09-30 | 4.90 | 8,275,918 | 2.93 | -1,391,054 | -14.39 | 172,305,518 | 169,048,973 |
| 2026-09-15 | 5.72 | 9,666,972 | 7.22 | -72,748 | -0.75 | 172,305,518 | 169,048,973 |
| 2026-08-31 | 5.76 | 9,739,720 | 6.93 | +260,808 | +2.75 | 172,305,518 | 169,048,973 |
| 2026-08-14 | 5.61 | 9,478,912 | 4.54 | -1,333,181 | -12.33 | 172,305,518 | 169,048,973 |
| 2026-07-31 | 6.40 | 10,812,093 | 7.96 | -217,351 | -1.97 | 171,235,870 | 169,048,973 |
| 2026-07-15 | 6.52 | 11,029,444 | 7.61 | +78,319 | +0.72 | 171,235,870 | 169,049,316 |
| 2026-06-30 | 6.48 | 10,951,125 | 4.75 | -861,665 | -7.29 | 171,235,870 | 169,038,014 |
| 2026-06-15 | 6.99 | 11,812,790 | 11.28 | +58,690 | +0.50 | 171,235,870 | 168,975,856 |
| 2026-05-29 | 6.96 | 11,754,100 | 8.08 | +329,495 | +2.88 | 171,235,870 | 168,979,451 |
| 2026-05-15 | 6.77 | 11,424,605 | 5.87 | +268,226 | +2.40 | 171,235,870 | 168,664,035 |
| 2026-04-30 | 6.67 | 11,156,379 | 5.89 | +175,100 | +1.59 | 171,215,262 | 167,248,757 |
| 2026-04-15 | 6.57 | 10,981,279 | 7.39 | +342,771 | +3.22 | 170,494,613 | 167,248,757 |
| 2026-03-31 | 6.36 | 10,638,508 | 4.93 | +2,014,484 | +23.36 | 170,494,613 | 167,248,757 |
| 2026-03-13 | 5.16 | 8,624,024 | 4.97 | -866,082 | -9.13 | 170,494,613 | 167,248,757 |
| 2026-02-27 | 5.67 | 9,490,106 | 4.96 | +587,825 | +6.60 | 169,181,817 | 167,248,757 |
| 2026-02-13 | 5.32 | 8,902,281 | 6.34 | -411,087 | -4.41 | 169,181,817 | 167,248,757 |
| 2026-01-30 | 5.57 | 9,313,368 | 7.24 | +944,772 | +11.29 | 169,181,817 | 167,248,757 |
| 2026-01-15 | 5.00 | 8,368,596 | 6.85 | -45,713 | -0.54 | 169,181,817 | 167,248,757 |
| 2025-12-31 | 5.03 | 8,414,309 | 6.55 | -266,958 | -3.08 | 169,181,817 | 167,248,757 |
| 2025-12-15 | 5.19 | 8,681,267 | 5.63 | -230,196 | -2.58 | 169,181,817 | 167,248,757 |
| 2025-11-28 | 5.33 | 8,911,463 | 6.67 | -542,487 | -5.74 | 169,181,817 | 167,243,512 |
| 2025-11-14 | 5.63 | 9,453,950 | 5.27 | +940,306 | +11.04 | 169,181,817 | 167,852,060 |
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.