On August 19, Coherent fell 3.49% in regular trading, trading at 294.45 USD/share, with turnover of $4.79 billion. The stock had already plunged over 12% in the prior session, and selling pressure continued as investors locked in gains following a sustained rally.

On the news front, the decline represents extended profit-taking after Coherent's strong Q4 earnings report drove a sharp multi-day advance. The company posted Q4 revenue of $20.5 billion, up 34% year-over-year, with adjusted EPS of $1.74, a 74% increase, both significantly exceeding consensus. Q1 guidance midpoints of approximately $23 billion in revenue and $1.95 EPS came in roughly 7% and 10% above expectations respectively. Multiple Wall Street firms raised price targets, including JPMorgan to $435, Needham and Jefferies to $420, and Morgan Stanley to $375.

At the sector level, the optical communications space saw sustained broad-based selling. In the prior session, Fabrinet fell nearly 20%, Lumentum dropped over 9%, and Corning declined over 7%. Within the Electronic Components sector, Corning fell 4.17%, Vishay Intertechnology fell 4.80%, and Lightwave Logic fell 5.42%, reflecting continued sector-wide pressure.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)