WORK Medical Technology Group is trading 5.88% higher at $1.08 after hours, with the reason for the move unclear. - The stock closed the regular session at $1.02 after falling 7.27% during the October 30 session; the after-hours gain reverses that direction. - No company-specific announcement or filing dated October 30 was identified; the latest SEC filings listed were from August. - Broad market indices fell sharply, but that does not explain the opposite-direction after-hours move.