ACIU short interest
AC Immune S.A. · Healthcare · Biotechnology · settlement date 2026-09-30
| Shares short | 3,524,624 |
|---|---|
| Change vs prior report | 49,152 (+1.4%) |
| Change over six months | +18.9% |
| Days to cover | 18.74 (sector: 3.78) |
| Average daily volume | 188,115 |
| Rank in Healthcare | #19 of 922 by days to cover |
ACIU short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 3,524,624 | +1.4% | 18.74 | 188,115 |
| 2026-09-15 | 3,475,472 | +5.4% | 25.00 | 139,040 |
| 2026-08-31 | 3,296,131 | -3.2% | 14.99 | 219,900 |
| 2026-08-14 | 3,405,907 | -4.1% | 14.29 | 238,336 |
| 2026-07-31 | 3,551,322 | +4.6% | 18.18 | 195,352 |
| 2026-07-15 | 3,395,949 | +0.6% | 13.27 | 255,887 |
| 2026-06-30 | 3,376,932 | -4.0% | 12.99 | 260,017 |
| 2026-06-15 | 3,516,192 | +4.8% | 9.60 | 366,218 |
| 2026-05-29 | 3,353,471 | +3.9% | 16.31 | 205,581 |
| 2026-05-15 | 3,226,453 | +6.3% | 10.12 | 318,717 |
| 2026-04-30 | 3,034,113 | +3.4% | 12.91 | 234,932 |
| 2026-04-15 | 2,933,523 | -1.0% | 10.01 | 292,967 |
| 2026-03-31 | 2,964,467 | -4.1% | 14.59 | 203,144 |
| 2026-03-13 | 3,091,859 | -6.8% | 9.28 | 333,318 |
| 2026-02-27 | 3,316,141 | +2.5% | 9.42 | 351,977 |
| 2026-02-13 | 3,235,563 | -1.9% | 13.09 | 247,206 |
| 2026-01-30 | 3,298,620 | +1.5% | 10.69 | 308,450 |
| 2026-01-15 | 3,250,814 | -2.9% | 6.27 | 518,544 |
| 2025-12-31 | 3,346,927 | -6.8% | 10.55 | 317,326 |
| 2025-12-15 | 3,593,227 | +94.4% | 1.63 | 2,209,361 |
| 2025-11-28 | 1,848,164 | +14.2% | 8.02 | 230,360 |
| 2025-11-14 | 1,618,509 | +0.3% | 6.99 | 231,552 |
| 2025-10-31 | 1,612,940 | +2.3% | 3.61 | 447,103 |
| 2025-10-15 | 1,576,999 | -3.9% | 3.55 | 443,972 |
| 2025-09-30 | 1,640,120 | +4.0% | 9.72 | 168,777 |
import finzdata as yf
yf.Ticker("ACIU").short_interest # every report since 2017
yf.Client().short_interest(["ACIU"], start="2018-01-01")Healthcare short interest · ACIU price history · Who owns ACIU · All short interest