What Happened?
Shares of glass and electronic component manufacturer Corning (NYSE: GLW) fell 13% in the afternoon session after the company reported second-quarter revenue and third-quarter sales forecast both missed Wall Street's expectations.
The sell-off occurred even as the company posted an adjusted earnings per share of $0.78, beating analyst estimates by 3.5%. However, this was not enough to satisfy investors, as quarterly sales of $4.51 billion grew 11.4% year-over-year but fell short of the $4.65 billion consensus.
More importantly, Corning's revenue guidance for the upcoming third quarter was a key point of concern. The company projected sales of $4.95 billion at the midpoint, which was below the anticipated $5.04 billion. Despite also guiding for a third-quarter earnings beat, the disappointing revenue outlook suggested slowing demand, prompting investors to sell their shares.
The stock market overreacts to news, and big price drops can present good opportunities to buy high-quality stocks. Is now the time to buy Corning? Access our full analysis report here, it’s free.
What Is The Market Telling Us
Corning’s shares are extremely volatile and have had 40 moves greater than 5% over the last year. But moves this big are rare even for Corning and indicate this news significantly impacted the market’s perception of the business.
The biggest move we wrote about over the last year was 6 months ago when the stock gained 16.6% on the news that it unveiled a multiyear agreement worth up to six billion dollars hours before its scheduled earnings report. Executives detailed how the company would supply the optical fiber and cabling necessary to wire Meta's next generation of artificial intelligence data centers. Investors viewed this contract not merely as a revenue boost, but as the definitive validation of the long-awaited supercycle in fiber optics. To fulfill the colossal order, the company pledged to expand its manufacturing operations in Hickory, North Carolina. CEO Wendell Weeks described the hyperscalers as the company's most critical growth engine.
Corning is up 38.1% since the beginning of the year, but at $125.20 per share, it is still trading 51% below its 52-week high of $255.69 from June 2026. Investors who bought $1,000 worth of Corning’s shares 5 years ago would now be looking at an investment worth $3,066.
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