IDYA
IDEAYA Biosciences, Inc. Common Stock
stockNASDAQ
At CloseOct 2, 2026 3:59:59 PM EDT
37.36USD-1.190%(-0.45)579,047
As of 2026-09-15, there were 9,931,622 shares short with a short interest of 11.41%.
IDYA Short Interest - Official
Short Interest
IDYA Short Position Change - Official
Short Position Change
IDYA 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 | 11.41 | 9,931,622 | 17.26 | -172,135 | -1.70 | 96,489,484 | 87,078,958 |
| 2026-08-31 | 11.60 | 10,103,757 | 12.21 | -294,321 | -2.83 | 96,489,484 | 87,078,958 |
| 2026-08-14 | 11.94 | 10,398,078 | 16.51 | +284,872 | +2.82 | 96,274,802 | 87,078,958 |
| 2026-07-31 | 11.61 | 10,113,206 | 13.19 | +539,626 | +5.64 | 96,274,802 | 87,078,958 |
| 2026-07-15 | 10.99 | 9,573,580 | 8.61 | -761,389 | -7.37 | 96,274,802 | 87,078,958 |
| 2026-06-30 | 11.87 | 10,334,969 | 6.08 | -294,145 | -2.77 | 96,274,802 | 87,078,958 |
| 2026-06-15 | 12.22 | 10,629,114 | 7.53 | -1,075,184 | -9.19 | 94,608,133 | 87,014,819 |
| 2026-05-15 | 13.45 | 11,704,298 | 13.96 | -1,472 | -0.01 | 87,860,920 | 87,007,790 |
| 2026-04-30 | 13.47 | 11,705,770 | 11.18 | +1,141,419 | +10.80 | 87,860,920 | 86,873,904 |
| 2026-04-15 | 12.16 | 10,564,351 | 4.53 | +802,924 | +8.23 | 87,814,027 | 86,873,904 |
| 2026-03-31 | 11.24 | 9,761,427 | 9.35 | +37,461 | +0.39 | 87,814,027 | 86,873,904 |
| 2026-03-13 | 11.19 | 9,723,966 | 11.38 | -8,299 | -0.09 | 87,814,027 | 86,873,904 |
| 2026-02-27 | 11.20 | 9,732,265 | 12.67 | -263,322 | -2.63 | 87,814,027 | 86,873,904 |
| 2026-02-13 | 11.51 | 9,995,587 | 11.52 | +678,638 | +7.28 | 87,666,408 | 86,873,904 |
| 2026-01-30 | 10.72 | 9,316,949 | 11.59 | +611,373 | +7.02 | 87,666,408 | 86,873,904 |
| 2026-01-15 | 10.02 | 8,705,576 | 8.38 | +458,441 | +5.56 | 87,666,408 | 86,873,904 |
| 2025-12-31 | 9.49 | 8,247,135 | 9.47 | +1,024,131 | +14.18 | 87,666,408 | 86,873,904 |
| 2025-12-15 | 8.31 | 7,223,004 | 7.49 | -494,021 | -6.40 | 87,666,408 | 86,873,904 |
| 2025-11-28 | 9.21 | 7,717,025 | 9.14 | -316,315 | -3.94 | 87,666,408 | 83,788,564 |
| 2025-11-14 | 9.82 | 8,033,340 | 8.52 | +173,784 | +2.21 | 87,666,408 | 81,839,222 |
| 2025-10-31 | 9.61 | 7,859,556 | 5.71 | -622,121 | -7.33 | 87,643,686 | 81,816,257 |
| 2025-10-15 | 10.37 | 8,481,677 | 7.37 | +88,004 | +1.05 | 87,643,686 | 81,816,257 |
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.