On July 29, Corning fell 5.61% in pre-market trading, trading at $124.22/share with turnover of $4.978 million, extending the prior session's nearly 20% decline.

The continued selloff was driven by two factors: Corning's Q3 guidance falling short of market expectations and JPMorgan's target price cut from $200 to $170. While Corning's Q2 results beat estimates — core sales of $4.74 billion rose 17% YoY, exceeding the $4.63 billion consensus, and core EPS of $0.78 topped the $0.76 estimate — the Q3 guidance of $4.9-5.0 billion in core sales came in with a midpoint below the $5.0 billion market expectation. The implied sequential growth decelerated sharply from 9% to just 3-6%.

With Corning's year-to-date gains approaching 100% and valuation elevated at approximately 44x PE, the margin for error was minimal. The guidance shortfall triggered large-scale profit-taking, also dragging down the broader optical communications sector, with peers Coherent and Lumentum recording double-digit declines.

(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.)