PBYI short interest
Puma Biotechnology Inc. · Healthcare · Biotechnology · settlement date 2026-09-30
| Shares short | 4,264,923 |
|---|---|
| Change vs prior report | -54,740 (-1.3%) |
| Change over six months | +8.3% |
| Days to cover | 14.02 (sector: 3.78) |
| Average daily volume | 304,289 |
| Rank in Healthcare | #43 of 922 by days to cover |
PBYI short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 4,264,923 | -1.3% | 14.02 | 304,289 |
| 2026-09-15 | 4,319,663 | +1.1% | 13.80 | 313,119 |
| 2026-08-31 | 4,274,524 | +2.6% | 15.62 | 273,610 |
| 2026-08-14 | 4,167,830 | +1.0% | 11.39 | 365,781 |
| 2026-07-31 | 4,126,395 | +5.5% | 13.89 | 297,127 |
| 2026-07-15 | 3,909,380 | +7.7% | 10.65 | 367,132 |
| 2026-06-30 | 3,628,478 | -1.9% | 8.47 | 428,367 |
| 2026-06-15 | 3,698,796 | -2.8% | 18.41 | 200,928 |
| 2026-05-29 | 3,803,328 | -9.3% | 19.73 | 192,768 |
| 2026-05-15 | 4,194,225 | +2.2% | 11.79 | 355,790 |
| 2026-04-30 | 4,105,615 | -1.2% | 18.59 | 220,877 |
| 2026-04-15 | 4,156,497 | +5.6% | 12.60 | 329,805 |
| 2026-03-31 | 3,936,887 | -4.2% | 16.64 | 236,626 |
| 2026-03-13 | 4,109,329 | +9.2% | 8.79 | 467,371 |
| 2026-02-27 | 3,764,191 | +2.8% | 7.50 | 501,710 |
| 2026-02-13 | 3,662,823 | +5.2% | 8.52 | 429,824 |
| 2026-01-30 | 3,480,513 | -3.1% | 7.79 | 446,862 |
| 2026-01-15 | 3,591,353 | +4.2% | 9.89 | 363,274 |
| 2025-12-31 | 3,444,842 | +0.4% | 9.61 | 358,631 |
| 2025-12-15 | 3,430,858 | +0.6% | 8.53 | 402,443 |
| 2025-11-28 | 3,411,205 | +2.4% | 8.42 | 405,135 |
| 2025-11-14 | 3,332,897 | -0.3% | 3.63 | 918,744 |
| 2025-10-31 | 3,342,396 | -0.6% | 8.38 | 398,748 |
| 2025-10-15 | 3,360,938 | -4.5% | 7.07 | 475,124 |
| 2025-09-30 | 3,518,135 | +3.6% | 6.77 | 519,569 |
import finzdata as yf
yf.Ticker("PBYI").short_interest # every report since 2017
yf.Client().short_interest(["PBYI"], start="2018-01-01")Healthcare short interest · PBYI price history · Who owns PBYI · All short interest