Corning Shares Drop Over 12% After Announcing $2 Billion At-the-Market Equity Offering
Shares of Corning Incorporated (NYSE:GLW) fell more than 12% after the company announced a $2 billion at-the-market equity offering. The move, facilitated by Goldman Sachs as exclusive sales agent, triggered investor concerns over share dilution and corporate financing strategy. This decline made Corning the worst-performing stock in the S&P 500 on September 14, 2026. The selloff also affected other optical connectivity firms due to sector-wide sentiment shifts tied to weekend commentary from AI lab leaders suggesting a slowdown in frontier development progress. Coherent (NYSE:COHR) dropped 11%, Lumentum (NASDAQ:LITE) fell nearly 9%, and Fabrinet (NYSE:FN) declined by about 6%. These declines were attributed partly to sector sympathy, especially with NVIDIA's optical supply chain being impacted. The optics group has been under pressure from both company-specific news like Corning’s offering and broader concerns over AI development pacing. This selloff contrasts sharply against a year-to-date gain of nearly 68% for Corning before the session.

Tickers: $COHR $FN $GLW $GS $LITE $NVDA
Topics: AI optical connectivity at-the-market offering dilution event stock selloff