BLLN short interest
BillionToOne Inc. · Healthcare · Medical - Diagnostics & Research · settlement date 2026-09-30
| Shares short | 2,818,267 |
|---|---|
| Change vs prior report | 192,747 (+7.3%) |
| Change over six months | +71.7% |
| Days to cover | 3.88 (sector: 3.78) |
| Average daily volume | 725,773 |
| Rank in Healthcare | #543 of 922 by days to cover |
BLLN short interest, last 12 months
| Settlement | Shares short | Change | Days to cover | Avg daily volume |
|---|---|---|---|---|
| 2026-09-30 | 2,818,267 | +7.3% | 3.88 | 725,773 |
| 2026-09-15 | 2,625,520 | +11.8% | 4.84 | 542,824 |
| 2026-08-31 | 2,348,604 | +20.5% | 4.17 | 563,116 |
| 2026-08-14 | 1,949,158 | +1.5% | 1.80 | 1,080,966 |
| 2026-07-31 | 1,920,601 | -20.2% | 3.38 | 568,120 |
| 2026-07-15 | 2,407,203 | -0.7% | 3.58 | 673,065 |
| 2026-06-30 | 2,424,403 | +34.2% | 2.96 | 818,529 |
| 2026-06-15 | 1,806,499 | +7.4% | 2.18 | 828,883 |
| 2026-05-29 | 1,681,847 | +14.8% | 2.82 | 596,719 |
| 2026-05-15 | 1,465,466 | -36.2% | 1.57 | 935,515 |
| 2026-04-30 | 2,298,545 | +18.5% | 5.93 | 387,699 |
| 2026-04-15 | 1,940,036 | +18.2% | 4.58 | 423,610 |
| 2026-03-31 | 1,641,344 | +25.3% | 6.55 | 250,605 |
| 2026-03-13 | 1,309,571 | +12.1% | 3.16 | 414,209 |
| 2026-02-27 | 1,168,738 | +18.2% | 4.41 | 265,214 |
| 2026-02-13 | 988,847 | +7.2% | 5.77 | 171,397 |
| 2026-01-30 | 922,879 | +29.6% | 3.86 | 239,061 |
| 2026-01-15 | 712,193 | +20.1% | 2.96 | 240,461 |
| 2025-12-31 | 592,757 | +88.0% | 2.56 | 231,137 |
| 2025-12-15 | 315,303 | +79.5% | 1.70 | 185,141 |
| 2025-11-28 | 175,681 | +221.3% | 1.00 | 181,490 |
| 2025-11-14 | 54,673 | +100.0% | 1.00 | 275,347 |
import finzdata as yf
yf.Ticker("BLLN").short_interest # every report since 2017
yf.Client().short_interest(["BLLN"], start="2018-01-01")Healthcare short interest · BLLN price history · Who owns BLLN · All short interest