WTM
White Mountains Insurance Group Ltd.
stockNYSE
Market OpenNov 6, 2026 12:22:10 PM EST
2,240.28USD-2.349%(-53.88)10,328
As of 2026-10-15, there were 146,873 shares short with a short interest of 6.36%.
WTM Short Interest - Official
WTM Short Position Change - Official
WTM 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 | 6.36 | 146,873 | 7.30 | +7,228 | +5.18 | 2,386,721 | 2,309,617 |
| 2026-09-30 | 5.90 | 139,645 | 7.43 | +4,238 | +3.13 | 2,386,721 | 2,366,961 |
| 2026-09-15 | 5.72 | 135,407 | 6.17 | +3,722 | +2.83 | 2,386,721 | 2,366,961 |
| 2026-08-31 | 5.56 | 131,685 | 6.47 | -4,631 | -3.40 | 2,386,721 | 2,366,961 |
| 2026-08-14 | 5.76 | 136,316 | 5.67 | -663 | -0.48 | 2,386,721 | 2,366,961 |
| 2026-07-31 | 5.79 | 136,979 | 8.53 | -1,327 | -0.96 | 2,476,670 | 2,366,961 |
| 2026-07-15 | 5.85 | 138,306 | 7.38 | +13,545 | +10.86 | 2,476,670 | 2,366,178 |
| 2026-06-30 | 5.27 | 124,761 | 6.87 | +5,521 | +4.63 | 2,476,670 | 2,366,178 |
| 2026-06-15 | 5.04 | 119,240 | 4.52 | +31,285 | +35.57 | 2,476,670 | 2,366,178 |
| 2026-05-15 | 3.66 | 87,955 | 3.69 | +9,942 | +12.74 | 2,476,670 | 2,401,094 |
| 2026-04-30 | 3.20 | 78,013 | 5.92 | +6,327 | +8.83 | 2,476,670 | 2,436,677 |
| 2026-04-15 | 2.94 | 71,686 | 3.84 | -10,555 | -12.83 | 2,476,670 | 2,436,677 |
| 2026-03-31 | 3.38 | 82,241 | 4.59 | -5,340 | -6.10 | 2,467,055 | 2,436,677 |
| 2026-03-13 | 3.59 | 87,581 | 4.13 | +12,471 | +16.60 | 2,467,055 | 2,436,677 |
| 2026-02-27 | 3.08 | 75,110 | 4.61 | +5,677 | +8.18 | 2,479,677 | 2,436,677 |
| 2026-02-13 | 2.85 | 69,433 | 3.90 | -11,980 | -14.72 | 2,479,677 | 2,436,677 |
| 2026-01-30 | 3.34 | 81,413 | 5.12 | +9,314 | +12.92 | 2,479,677 | 2,436,677 |
| 2026-01-15 | 2.96 | 72,099 | 3.86 | +7,328 | +11.31 | 2,479,677 | 2,436,677 |
| 2025-12-31 | 2.66 | 64,771 | 3.55 | -22,305 | -25.62 | 2,476,555 | 2,436,677 |
| 2025-12-15 | 3.57 | 87,076 | 3.97 | -22,681 | -20.66 | 2,543,741 | 2,436,525 |
| 2025-11-28 | 4.50 | 109,757 | 5.80 | +14,402 | +15.10 | 2,543,741 | 2,436,828 |
| 2025-11-14 | 3.91 | 95,355 | 4.19 | -12,449 | -11.55 | 2,553,106 | 2,436,752 |
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.