SERA
Sera Prognostics, Inc. Class A Common Stock
stockNASDAQ
Market OpenOct 2, 2026 3:23:11 PM EDT
2.14USD+4.902%(+0.10)21,876
1.6800Bid2.4600Ask0.7800SpreadAs of 2026-09-15, there were 213,893 shares short with a short interest of 0.78%.
SERA Short Interest - Official
Short Interest
SERA Short Position Change - Official
Short Position Change
SERA Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 0.78 | 213,893 | 7.55 | -7,898 | -3.56 | 39,449,466 | 27,467,496 |
| 2026-08-31 | 0.81 | 221,791 | 10.45 | -3,473 | -1.54 | 39,449,466 | 27,467,496 |
| 2026-08-14 | 0.82 | 225,264 | 6.00 | -5,611 | -2.43 | 39,449,466 | 27,467,496 |
| 2026-07-31 | 0.84 | 230,875 | 6.43 | -9,962 | -4.14 | 39,158,725 | 27,467,496 |
| 2026-07-15 | 0.88 | 240,837 | 6.83 | -21,712 | -8.27 | 39,158,725 | 27,462,797 |
| 2026-06-30 | 0.96 | 262,549 | 6.45 | -2,710 | -1.02 | 39,158,725 | 27,476,503 |
| 2026-06-15 | 0.97 | 265,259 | 5.24 | -15,725 | -5.60 | 39,158,725 | 27,483,551 |
| 2026-05-15 | 1.02 | 280,984 | 4.18 | -17,310 | -5.80 | 39,158,725 | 27,578,315 |
| 2026-04-30 | 1.12 | 298,294 | 19.72 | -49,524 | -14.24 | 39,158,725 | 26,701,737 |
| 2026-04-15 | 1.30 | 347,818 | 10.66 | -33,675 | -8.83 | 39,143,848 | 26,701,737 |
| 2026-03-31 | 1.43 | 381,493 | 4.61 | +134,024 | +54.16 | 39,143,848 | 26,701,737 |
| 2026-03-13 | 0.93 | 247,469 | 2.16 | -36,314 | -12.80 | 38,594,793 | 26,701,737 |
| 2026-02-27 | 1.06 | 283,783 | 10.37 | -4,509 | -1.56 | 38,594,793 | 26,701,737 |
| 2026-02-13 | 1.08 | 288,292 | 13.01 | -27,372 | -8.67 | 38,594,793 | 26,701,737 |
| 2026-01-30 | 1.18 | 315,664 | 5.70 | -21,997 | -6.51 | 38,594,793 | 26,701,737 |
| 2026-01-15 | 1.26 | 337,661 | 5.86 | +39,206 | +13.14 | 38,594,793 | 26,701,737 |
| 2025-12-31 | 1.12 | 298,455 | 5.18 | -51,879 | -14.81 | 38,594,793 | 26,701,737 |
| 2025-12-15 | 1.31 | 350,334 | 5.35 | -40,735 | -10.42 | 38,594,793 | 26,659,218 |
| 2025-11-28 | 1.48 | 391,069 | 12.66 | -41,485 | -9.59 | 38,594,793 | 26,497,723 |
| 2025-11-14 | 1.77 | 432,554 | 11.91 | -45,101 | -9.44 | 38,061,868 | 24,429,249 |
| 2025-10-31 | 1.96 | 477,655 | 9.71 | -54,941 | -10.32 | 38,061,868 | 24,428,107 |
| 2025-10-15 | 2.18 | 532,596 | 15.63 | -33,463 | -5.91 | 38,061,868 | 24,428,107 |
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.