NCNA · NuCana plc
Total shares sold short and not yet covered, reported to FINRA by broker-dealers twice a month. Each reading settles on the 15th and the last business day of the month and is published seven business days later — the next scheduled dates are listed at the top of the table. Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-15). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
|
2026-08-14
Scheduled
FINRA publishes Aug 25
|
— | — | — | — |
|
2026-07-31
Scheduled
FINRA publishes Aug 11
|
— | — | — | — |
| 2026-07-15 | 174,675 | 115,766 | +58,909 | 1.93 |
| 2026-06-30 | 115,766 | 130,646 | -14,880 | 2.86 |
| 2026-06-15 | 130,646 | 127,295 | +3,351 | 2.52 |
| 2026-05-29 | 127,295 | 167,041 | -39,746 | 3.30 |
| 2026-05-15 | 167,041 | 169,168 | -2,127 | 3.51 |
| 2026-04-30 | 169,168 | 169,130 | +38 | 7.20 |
| 2026-04-15 | 169,130 | 168,450 | +680 | 3.49 |
| 2026-03-31 | 168,450 | 160,023 | +8,427 | 3.17 |
| 2026-03-13 | 160,023 | 176,475 | -16,452 | 3.22 |
| 2026-02-27 | 176,475 | 188,048 | -11,573 | 8.50 |
| 2026-02-13 | 188,048 | 212,167 | -24,119 | 3.62 |
| 2026-01-30 | 212,167 | 196,325 | +15,842 | 2.51 |
| 2026-01-15 | 196,325 | 195,364 | +961 | 2.03 |
| 2025-12-31 | 195,364 | 206,809 | -11,445 | 3.16 |
| 2025-12-15 | 206,809 | 190,147 | +16,662 | 3.91 |
| 2025-11-28 | 190,147 | 324,056 | -133,909 | 2.43 |
| 2025-11-14 | 324,056 | 225,427 | +98,629 | 4.62 |
| 2025-10-31 | 225,427 | 361,353 | -135,926 | 1.00 |
| 2025-10-15 | 361,353 | 437,063 | -75,710 | 1.00 |
| 2025-09-30 | 437,063 | 438,050 | -987 | 1.00 |
| 2025-09-15 | 438,050 | 358,216 | +79,834 | 1.00 |
| 2025-08-29 | 358,216 | 367,178 | -8,962 | 1.13 |
| 2025-08-15 | 367,178 | 12,204,905 | -11,837,727 | 1.00 |
| 2025-07-31 | 61,025 | 145,605 | -84,581 | 1.00 |