ATEC US Equity
Alphatec Holdings, Inc.Health Care · Surgical & Medical Instruments & Apparatus · CIK 1350653 · FY ends Dec 31$9.48
+0.19 (+2.05%)
USD · as of 2026-08-21 · marketstack
Short interest· FINRA consolidated · settlement 2026-07-31
6 settlement cycles| Shares short | 13.8M |
| % of shares out | 8.9% |
| Days to cover | 7.3 |
| Δ vs 2026-07-15 | +0.3% |
bars = shares short · line = days to cover (own scale)
| Settlement | Shares short | Δ vs prior | Avg daily volume | Days to cover |
|---|
| 2026-07-31 | 13,788,007 | +0.3% | 1,901,128 | 7.3 |
| 2026-07-15 | 13,748,220 | -5.9% | 2,399,951 | 5.7 |
| 2026-06-30 | 14,616,529 | +18.3% | 4,065,714 | 3.6 |
| 2026-06-15 | 12,358,418 | +3.0% | 2,429,400 | 5.1 |
| 2026-05-29 | 12,004,189 | -15.3% | 2,538,717 | 4.7 |
| 2026-05-15 | 14,178,002 | +18.9% | 6,576,384 | 2.2 |
FINRA Rule 4560 · twice monthly, published ~a week later.
Output of a disclosed model — assumptions may be wrong. Research, not investment advice. See the Disclaimer.
