VSTM
Verastem, Inc.
stockNASDAQ
At CloseOct 30, 2026 4:49:30 PM EDT
9.56USD-1.035%(-0.10)2,411,811
Pre-marketOct 30, 2026 10:29:29 AM EDT
9.59USD-0.725%(-0.07)
As of 2026-10-15, there were 17,201,810 shares short with a short interest of 24.40%.
VSTM Short Interest - Official
VSTM Short Position Change - Official
VSTM Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-10-15 | 24.40 | 17,201,810 | 2.49 | +2,236,985 | +14.95 | 90,563,441 | 70,500,922 |
| 2026-09-30 | 21.26 | 14,964,825 | 6.97 | -3,063,791 | -16.99 | 90,563,441 | 70,376,240 |
| 2026-09-15 | 25.62 | 18,028,616 | 6.52 | -269,699 | -1.47 | 90,563,441 | 70,376,240 |
| 2026-08-31 | 26.00 | 18,298,315 | 10.97 | -610,737 | -3.23 | 90,563,441 | 70,376,240 |
| 2026-08-14 | 26.87 | 18,909,052 | 9.63 | -916,739 | -4.62 | 90,563,441 | 70,376,240 |
| 2026-07-31 | 28.17 | 19,825,791 | 9.35 | -277,554 | -1.38 | 87,873,639 | 70,376,240 |
| 2026-07-15 | 37.95 | 20,103,345 | 6.83 | -4,039,592 | -16.73 | 87,873,639 | 52,979,156 |
| 2026-06-30 | 45.57 | 24,142,937 | 6.95 | +2,368,043 | +10.88 | 87,873,639 | 52,979,156 |
| 2026-06-15 | 41.10 | 21,774,894 | 8.89 | +3,904,645 | +21.85 | 87,873,639 | 52,979,156 |
| 2026-05-15 | 33.73 | 17,870,249 | 6.99 | +346,661 | +1.98 | 87,873,639 | 52,979,156 |
| 2026-04-30 | 34.17 | 17,523,588 | 8.78 | +105,830 | +0.61 | 87,842,899 | 51,280,634 |
| 2026-04-15 | 33.97 | 17,417,758 | 9.00 | +1,051,928 | +6.43 | 87,842,899 | 51,280,634 |
| 2026-03-31 | 31.91 | 16,365,830 | 6.07 | -1,485,349 | -8.32 | 87,835,106 | 51,280,634 |
| 2026-03-13 | 34.81 | 17,851,179 | 10.52 | +755,555 | +4.42 | 75,319,800 | 51,280,634 |
| 2026-02-27 | 33.34 | 17,095,624 | 13.54 | -956,824 | -5.30 | 75,319,800 | 51,280,634 |
| 2026-02-13 | 35.20 | 18,052,448 | 10.57 | +1,593,421 | +9.68 | 75,319,800 | 51,280,634 |
| 2026-01-30 | 32.10 | 16,459,027 | 10.04 | -656,529 | -3.84 | 75,319,800 | 51,280,634 |
| 2026-01-15 | 33.38 | 17,115,556 | 7.18 | +98,137 | +0.58 | 75,319,800 | 51,280,634 |
| 2025-12-31 | 33.18 | 17,017,419 | 9.30 | +296,074 | +1.77 | 75,319,800 | 51,280,634 |
| 2025-12-15 | 32.61 | 16,721,345 | 10.74 | -1,672,142 | -9.09 | 75,319,800 | 51,279,966 |
| 2025-11-28 | 35.88 | 18,393,487 | 6.45 | -747,584 | -3.91 | 75,319,800 | 51,261,269 |
| 2025-11-14 | 35.15 | 19,141,071 | 7.18 | +1,508,337 | +8.55 | 66,776,006 | 54,453,162 |
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.