Coherent is trading 4.7% down at $285.20 in pre-market, extending weakness following a recent pullback in optical networking and AI photonics stocks.

  • The decline reflects a sector-wide reset and valuation concerns rather than company-specific news, as AI infrastructure names sell off in tandem.
  • Today's price action follows a broader trend of weakness in photonics, despite a generally strong backdrop for the wider semiconductor market.