Uranium Stocks Surge... Market Capitalization Increases by Over 4 Trillion in One Day

Cameco Corporation (CCJ) surged 6.13% on the New York Stock Exchange, closing at $107.15. Its market capitalization rose by roughly $3 billion—over KRW 4 trillion—to about $46.6 billion (approximately KRW 65 trillion).

In its first quarter of 2026 earnings report, Cameco reaffirmed its solid cash-generating capacity, noting that its uranium, fuel services and Westinghouse segments are all proceeding according to plan. With global nuclear power plant expansion and growing concerns about uranium supply shortages, expectations for expanded long-term supply contracts and higher prices have driven the stock’s recent rally.

Headquartered in Saskatchewan, Canada, Cameco is one of the world’s largest uranium producers, covering the nuclear power value chain from mining—through high-grade deposits such as McArthur River—to fuel services via its stake in U.S.-based Westinghouse Electric Company. As a benchmark uranium stock, it has historically reacted most sensitively to nuclear investment cycles and movements in spot and long-term contract prices.