ASML stock tumbled on a report of competition emerging in China. It was among the biggest losers on the Philadelphia semiconductor index.

A Shanghai-based company has begun making immersion DUV lithography machines, The Information reported. ASML shares dropped 6.5%. China's share of ASML sales fell to 14%.

Selon le site The Information, a lancé la production de machines de lithographie à ultraviolet pour la fabrication de puces. Des machines concurrentes de celles du géant européen…