Data Center Beneficiaries Also Affected… $4.8B in Building Equipment Stocks Vanished in a Day

Johnson Controls International PLC (JCI) closed at $136.67 on the New York Stock Exchange on the 25th, plunging 6.06% with trading volume of roughly 3.2 million shares. Its market capitalization stands at about $83.3 billion (approximately KRW 110 trillion), erasing some $4.7 billion (around KRW 6 trillion) in value in a single day.

In early May, the company reported its fiscal 2026 second-quarter results, delivering $6.1 billion in revenue and $1.00 in earnings per share—beating market expectations and raising its full-year guidance, thereby reaffirming strong demand in data centers and building solutions. On June 9, Bernstein upgraded JCI to Outperform with a $176 price target, wagering on growth in AI data-center cooling and smart-building businesses.

Headquartered in Cork, Ireland, Johnson Controls International is a global building-technology firm supplying heating, ventilation and air conditioning, fire and security systems, and energy-efficiency solutions to commercial and industrial facilities. Formed through the 2016 merger of Johnson Controls and Tyco International, the company’s mid- to long-term growth story revolves around green buildings, smart infrastructure, and expanding data-center cooling demand.