Coherent is trading 4.2% down at $310.86 as traders lock in gains from its recent AI-optics rally and react to a sharp downturn in the tech sector.

  • The move is driven by broader risk-off sentiment and a sector-wide sell-off in semiconductor and AI infrastructure stocks.
  • There is no new company-specific news or change in fundamentals, suggesting the decline is primarily motivated by profit-taking.