ATEC
Alphatec Holdings, Inc.
stockNASDAQ
Market OpenNov 10, 2026 12:37:02 PM EST
6.97USD-5.623%(-0.41)1,345,869
Pre-marketNov 10, 2026 9:11:30 AM EST
7.25USD-1.762%(-0.13)
As of 2026-10-15, there were 13,283,446 shares short with a short interest of 11.00%.
ATEC Short Interest - Official
ATEC Short Position Change - Official
ATEC 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 | 11.00 | 13,283,446 | 5.86 | -791,166 | -5.62 | 154,451,076 | 120,781,300 |
| 2026-09-30 | 11.63 | 14,074,612 | 6.97 | -354,671 | -2.46 | 154,451,076 | 121,051,320 |
| 2026-09-15 | 11.92 | 14,429,283 | 5.50 | +756,988 | +5.54 | 154,451,076 | 121,051,320 |
| 2026-08-31 | 11.29 | 13,672,295 | 9.40 | +42,178 | +0.31 | 154,451,076 | 121,051,320 |
| 2026-08-14 | 11.26 | 13,630,117 | 4.81 | -157,890 | -1.15 | 154,451,076 | 121,051,320 |
| 2026-07-31 | 11.35 | 13,788,007 | 7.25 | +39,787 | +0.29 | 153,789,305 | 121,524,309 |
| 2026-07-15 | 11.31 | 13,748,220 | 5.73 | -868,309 | -5.94 | 153,789,305 | 121,524,309 |
| 2026-06-30 | 12.02 | 14,616,529 | 3.60 | +2,258,111 | +18.27 | 153,789,305 | 121,579,673 |
| 2026-06-15 | 10.16 | 12,358,418 | 5.09 | -1,819,584 | -12.83 | 153,789,305 | 121,579,673 |
| 2026-05-15 | 11.67 | 14,178,002 | 2.16 | +2,258,006 | +18.94 | 153,789,305 | 121,453,566 |
| 2026-04-30 | 10.24 | 11,919,996 | 4.13 | -2,129,302 | -15.16 | 153,702,057 | 116,432,150 |
| 2026-04-15 | 12.07 | 14,049,298 | 6.48 | -899,808 | -6.02 | 151,356,620 | 116,432,150 |
| 2026-03-31 | 12.84 | 14,949,106 | 6.95 | -371,890 | -2.43 | 151,356,620 | 116,432,150 |
| 2026-03-13 | 13.16 | 15,320,996 | 6.01 | +1,578,208 | +11.48 | 151,356,620 | 116,432,150 |
| 2026-02-27 | 11.80 | 13,742,788 | 5.26 | -558,013 | -3.90 | 148,550,185 | 116,432,150 |
| 2026-02-13 | 12.28 | 14,300,801 | 5.19 | -223,042 | -1.54 | 148,550,185 | 116,432,150 |
| 2026-01-30 | 12.47 | 14,523,843 | 4.63 | -2,057,549 | -12.41 | 148,550,185 | 116,432,150 |
| 2026-01-15 | 14.24 | 16,581,392 | 3.46 | -649,863 | -3.77 | 148,550,185 | 116,432,150 |
| 2025-12-31 | 14.80 | 17,231,255 | 9.96 | +2,443,981 | +16.53 | 148,550,185 | 116,432,150 |
| 2025-12-15 | 12.73 | 14,787,274 | 6.63 | +1,122,500 | +8.21 | 148,550,185 | 116,161,788 |
| 2025-11-28 | 11.80 | 13,664,774 | 7.22 | -53,755 | -0.39 | 148,550,185 | 115,781,500 |
| 2025-11-14 | 11.63 | 13,718,529 | 4.91 | +360,015 | +2.70 | 148,550,185 | 118,002,325 |
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.