Alphatec Holdings is trading at $12.04, up +5.15%, ahead of its October 29 third-quarter results, scheduled after the market close. - The company announced the reporting date on October 19; a webcast is set for 4:30 p.m. ET. - The October 28 rise was also reported as positioning ahead of the report, but no company-specific catalyst was confirmed. - Healthcare strength may offer support, but does not establish the cause of this move.