Corning Shares Skyrocket 13% as AI Infrastructure Boom Fuels Record Q2 Earnings

Corning Inc. (GLW) just gave investors a major reason to celebrate. On Tuesday, the glass and materials giant saw its shares surge by a staggering 13% following a blockbuster second-quarter 2025 earnings report. It wasn't just a slight beat; the company smashed Wall Street estimates across the board, proving that its strategic bet on the artificial intelligence (AI) infrastructure boom is paying off in a big way.

Breaking Down the Record-Breaking Numbers

Let's look at the hard data. Corning reported second-quarter sales of $3.86 billion, which represents a solid 19% increase compared to the same period last year. This figure easily surpassed the consensus estimates compiled by Visible Alpha. When looking at adjusted or hedged earnings per share (EPS), the company posted $0.60—comfortably ahead of the Bloomberg consensus of $0.57 and Mizuho’s estimate of $0.58.

Even more impressive was the hedged financial performance, where revenue hit $4.05 billion, well above the $3.9 billion forecast by Mizuho. The company’s GAAP EBITDA also showed healthy momentum, climbing 14.6% quarter-over-quarter to reach $921 million. These numbers reflect a company that is not just growing, but operating with high efficiency as it scales.

The AI Engine Behind the Growth

The real star of the show was Corning’s optical communications segment. As companies scramble to build out the infrastructure needed for massive AI models, demand for high-end fiber optic cabling has skyrocketed. Revenue in this division surged by 41% to $1.57 billion, a number that left analyst projections in the dust.

Specifically, optical enterprise sales—which represent more than half of Corning’s data center business—grew by 9% sequentially. This highlight underscores a critical trend: as global investment in AI data centers accelerates, the world needs more sophisticated glass and fiber to move data faster than ever before. Corning is positioned right at the heart of this physical backbone, providing the essential materials that make the AI revolution possible.

Wall Street Bullishness and Raised Price Targets

Following the report, analysts were quick to update their outlooks. Mizuho Securities was particularly impressed, raising its price target on Corning stock from $59 to $63 while maintaining an "Outperform" rating. The analysts pointed to the company’s strong guidance for the third quarter as a key reason for their confidence. For Q3, Corning is guiding for an EPS of approximately $0.65 and sales of $4.20 billion, both of which are higher than what the market had originally anticipated.

Citi also reiterated its "Buy" rating with a $60 price target, a milestone the stock actually blew past during Tuesday's rally. Meanwhile, JPMorgan maintained its "Overweight" rating, looking beyond the immediate AI hype to recognize Corning's long-term growth potential. With Tuesday’s jump to $61.66, Corning’s market capitalization now sits at roughly $52.8 billion, bringing its year-to-date return to about 33%—significantly outperforming the broader S&P 500.

Looking Ahead: The Foldable iPhone Wildcard

While AI is the current driver, there is another exciting catalyst on the horizon: the potential launch of a foldable iPhone in 2026. JPMorgan analysts are already forecasting that Apple’s iPhone 18 lineup could feature a foldable device. If this happens, it would be a massive win for Corning.

Foldable devices require significantly more glass area per unit and involve far more complex material engineering than standard smartphones. Since Corning is already a primary supplier of durable glass for Apple, they are the natural choice for this next-gen technology. A successful foldable iPhone launch could create a substantial new revenue stream, especially given the premium pricing and advanced tech required for foldable screens.

Between the relentless demand for AI infrastructure and the potential for a revolution in consumer electronics, Corning is demonstrating that it is much more than just a glass company—it is a vital enabler of the next generation of technology. With strong Q3 guidance and multiple growth levers, the momentum behind GLW seems far from over.