AI-Driven Glass Dinosaur Sees $10 Billion Market Cap Vanish in a Day

Corning Inc. (NASDAQ: GLW), listed on the New York Stock Exchange, closed at $136.26 per share on March 26, marking a steep 6.63% drop from the previous day. Trading volume reached approximately 7.2 million shares, and the company’s market capitalization stood at about $116.9 billion (roughly KRW 160 trillion). The one-day loss in market value was around $7.2 billion (about KRW 10 trillion).

Earlier this month, Corning introduced Gorilla Glass Ceramic 3 for smartphones and other mobile devices—a new product that significantly enhances drop durability compared to its predecessor. The company also signed a long-term supply agreement with Meta for up to $6 billion of optical fiber for AI data centers, and projected 15% revenue growth and 26% earnings growth for the first quarter of 2026, fueling expectations that it will benefit from the AI infrastructure boom.

Founded in 1851, Corning is a leading U.S. materials manufacturer supplying advanced materials such as display glass, communication optical fiber, specialty ceramics, and Gorilla Glass. Its core products include smartphone cover glass, high-performance optical fiber for data centers, and specialty glass for semiconductor processes. Corning has established itself as a key supplier to major IT clients like Apple and as a critical component in the supply chain supporting AI data center expansion.