Alphatec Holdings closed at $8.28 on Nov 4, up 10.84%, 63.5% below its 52-week closing high. Volume of 7.2M shares was 1.47× its 20-day average (above normal).
Split-adjusted performance: -21.4% over one month, +18.5% over six months, -57.1% over one year.
In the quarter ended Sep 30, 2026, revenue was $221.17M, up 12.6% from a year earlier, with a net margin of -2.5%.
Short interest was 13.3M shares at the Oct 15 settlement, down 5.6% from the prior report (10.7% of float, 5.9 days to cover).