ATI
ATI Inc.
stockNYSE
At CloseOct 16, 2026 3:59:52 PM EDT
185.71USD-1.902%(-3.60)1,148,869
As of 2026-09-30, there were 4,739,175 shares short with a short interest of 3.51%.
ATI Short Interest - Official
ATI Short Position Change - Official
ATI Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 3.51 | 4,739,175 | 2.77 | +404,032 | +9.32 | 136,170,383 | 135,079,643 |
| 2026-09-15 | 3.21 | 4,335,143 | 2.79 | +634,524 | +17.15 | 136,170,383 | 135,079,643 |
| 2026-08-31 | 2.74 | 3,700,619 | 1.72 | +254,134 | +7.37 | 136,170,383 | 135,079,643 |
| 2026-08-14 | 2.55 | 3,446,485 | 2.02 | -239,205 | -6.49 | 136,170,383 | 135,079,643 |
| 2026-07-31 | 2.73 | 3,685,690 | 2.51 | -50,566 | -1.35 | 136,470,427 | 135,047,709 |
| 2026-07-15 | 2.77 | 3,736,256 | 2.84 | -129,290 | -3.34 | 136,470,427 | 135,047,709 |
| 2026-06-30 | 2.86 | 3,865,546 | 1.80 | +270,980 | +7.54 | 136,470,427 | 135,007,723 |
| 2026-06-15 | 2.66 | 3,594,566 | 1.97 | -175,484 | -4.65 | 136,470,427 | 134,986,980 |
| 2026-05-15 | 2.79 | 3,770,050 | 2.08 | -39,683 | -1.04 | 136,470,427 | 134,990,801 |
| 2026-04-30 | 2.83 | 3,809,733 | 2.01 | +45,531 | +1.21 | 136,462,390 | 134,584,432 |
| 2026-04-15 | 2.80 | 3,764,202 | 2.13 | +6,662 | +0.18 | 136,462,390 | 134,584,432 |
| 2026-03-31 | 2.79 | 3,757,540 | 1.83 | +478,053 | +14.58 | 136,462,390 | 134,584,432 |
| 2026-03-13 | 2.44 | 3,279,487 | 1.43 | +642,748 | +24.38 | 136,936,299 | 134,584,432 |
| 2026-02-27 | 1.96 | 2,636,739 | 1.10 | -244,546 | -8.49 | 136,936,299 | 134,584,432 |
| 2026-02-13 | 2.14 | 2,881,285 | 1.04 | +37,866 | +1.33 | 135,863,661 | 134,584,432 |
| 2026-01-30 | 2.11 | 2,843,419 | 1.84 | +549,592 | +23.96 | 135,863,661 | 134,584,432 |
| 2026-01-15 | 1.70 | 2,293,827 | 1.65 | +63,465 | +2.85 | 135,863,661 | 134,584,432 |
| 2025-12-31 | 1.66 | 2,230,362 | 1.89 | -899,768 | -28.75 | 135,863,661 | 134,584,432 |
| 2025-12-15 | 2.33 | 3,130,130 | 1.87 | +83,346 | +2.74 | 135,863,661 | 134,524,045 |
| 2025-11-28 | 2.27 | 3,046,784 | 2.53 | +277,411 | +10.02 | 135,863,661 | 134,514,535 |
| 2025-11-14 | 2.06 | 2,769,373 | 2.37 | -27,783 | -0.99 | 135,863,661 | 134,428,941 |
| 2025-10-31 | 2.08 | 2,797,156 | 1.44 | -652,755 | -18.92 | 135,863,661 | 134,530,766 |
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.