AI Infrastructure's Hidden Champion Surges Over 6 Trillion Won in Market Capitalization in a Day

Celestica Inc. (CLS) surged 10.46% on the New York Stock Exchange on the 28th, closing at $387.72. Trading volume topped 1.66 million shares, and the company’s market capitalization swelled by roughly $5.2 billion in a single day to about $44.6 billion—equivalent to nearly KRW 6.8 trillion.

Investor enthusiasm has been fueled by expectations of strong demand from AI data centers. In its first quarter report, Celestica posted revenue of $4.05 billion and adjusted earnings per share of $2.16, and raised its full-year 2026 outlook, spurring fresh buying interest.

The company has also deepened its growth story through a collaboration with AMD on the ‘Helios’ rack-scale AI platform and the launch of new AI networking products, including a 1.6TbE switch. Wall Street analysts continue to rate the stock a “Strong Buy” and have lifted their average price targets.

Headquartered in Toronto, Canada, Celestica is an electronics manufacturing services (EMS) provider that offers hardware platforms—ranging from servers to network equipment—and supply-chain solutions to global IT and telecom customers in North America, Asia and beyond. Once viewed as a low-profile EMS partner working behind the scenes, the company is now being re-evaluated as a core beneficiary of AI infrastructure growth, thanks to its expanding footprint in AI data centers and high-value networking equipment.