Lightwave Logic is trading 5.89% higher at $4.41 amid a broader semiconductor rebound; no new company-specific explanation for the October 21 move surfaced in the search. - Reports described investors buying chip and AI-related shares after steep losses, with strong SpaceX results helping lift sector sentiment. - The move marks a second consecutive daily gain, following a 5.05% rise at the October 20 close. - Intraday volume data was not provided, so trading activity cannot be assessed.