ATEC · Alphatec Holdings, Inc. · Short Volume
$11.49
+0.63 (+5.76%)
At close · Oct 22
Return incl. dividend (before tax)
Market Cap
$1.69B
Shares
154.45M
Volume · Oct 22
1.01M
Avg daily vol (3M)
2.17M
Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.
Short Volume
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-10-21 | 254,060 | 100 | 638,560 | 39.8% |
| 2026-10-20 | 260,781 | 0 | 501,564 | 52.0% |
| 2026-10-19 | 341,862 | 27 | 527,313 | 64.8% |
| 2026-10-16 | 801,916 | 0 | 1,281,264 | 62.6% |
| 2026-10-15 | 602,586 | 210 | 1,266,549 | 47.6% |
| 2026-10-14 | 444,159 | 15 | 691,710 | 64.2% |
| 2026-10-13 | 361,916 | 0 | 751,039 | 48.2% |
| 2026-10-12 | 644,720 | 798 | 1,305,932 | 49.4% |
| 2026-10-09 | 272,729 | 905 | 603,430 | 45.2% |
| 2026-10-08 | 402,220 | 1 | 793,618 | 50.7% |
| 2026-10-07 | 353,872 | 163 | 715,544 | 49.5% |
| 2026-10-06 | 496,531 | 2,053 | 738,274 | 67.3% |
| 2026-10-05 | 459,485 | 0 | 723,904 | 63.5% |
| 2026-10-02 | 346,215 | 147 | 771,928 | 44.9% |
| 2026-10-01 | 374,618 | 18 | 734,231 | 51.0% |
| 2026-09-30 | 308,448 | 0 | 508,785 | 60.6% |
| 2026-09-29 | 302,902 | 25 | 567,217 | 53.4% |
| 2026-09-28 | 250,340 | 0 | 569,303 | 44.0% |
| 2026-09-25 | 402,723 | 100 | 678,185 | 59.4% |
| 2026-09-24 | 272,023 | 0 | 519,481 | 52.4% |
| 2026-09-23 | 273,793 | 3 | 625,444 | 43.8% |
| 2026-09-22 | 212,449 | 0 | 373,472 | 56.9% |
| 2026-09-21 | 212,424 | 0 | 480,422 | 44.2% |
| 2026-09-18 | 373,325 | 0 | 637,098 | 58.6% |
| 2026-09-17 | 557,314 | 111 | 1,113,584 | 50.0% |
| 2026-09-16 | 347,850 | 3,332 | 822,116 | 42.3% |
| 2026-09-15 | 334,992 | 0 | 787,839 | 42.5% |
| 2026-09-14 | 735,179 | 22,466 | 1,363,263 | 53.9% |
| 2026-09-11 | 1,916,238 | 7,802 | 3,074,615 | 62.3% |
| 2026-09-10 | 609,033 | 9,946 | 915,019 | 66.6% |
| 2026-09-09 | 665,955 | 0 | 1,159,802 | 57.4% |
| 2026-09-08 | 418,745 | 950 | 656,553 | 63.8% |
| 2026-09-04 | 448,390 | 1 | 639,587 | 70.1% |
| 2026-09-03 | 558,565 | 6,899 | 830,816 | 67.2% |
| 2026-09-02 | 321,147 | 28 | 504,291 | 63.7% |
| 2026-09-01 | 239,596 | 1,052 | 332,413 | 72.1% |
| 2026-08-31 | 297,386 | 31 | 423,641 | 70.2% |
| 2026-08-28 | 240,156 | 0 | 395,761 | 60.7% |
| 2026-08-27 | 360,310 | 0 | 597,319 | 60.3% |
| 2026-08-26 | 341,953 | 311 | 554,164 | 61.7% |
| 2026-08-25 | 456,688 | 15,400 | 719,462 | 63.5% |
| 2026-08-24 | 491,093 | 0 | 724,377 | 67.8% |
| 2026-08-21 | 344,263 | 0 | 498,186 | 69.1% |
| 2026-08-20 | 452,776 | 1,000 | 586,182 | 77.2% |
| 2026-08-19 | 363,165 | 0 | 501,333 | 72.4% |
| 2026-08-18 | 333,197 | 11 | 521,238 | 63.9% |
| 2026-08-17 | 480,986 | 400 | 611,358 | 78.7% |
| 2026-08-14 | 368,566 | 5,755 | 524,960 | 70.2% |
| 2026-08-13 | 240,225 | 170 | 472,910 | 50.8% |
| 2026-08-12 | 378,032 | 44 | 578,999 | 65.3% |
Showing 1–50 of 65 days
Key facts
CIK
1350653
CUSIP
02081G201
13F (30d)
48 filings
43 filers
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