The Download: a humanoid cleans house and Samsung builds for the AI boom

What happened: Samsung is building a large semiconductor manufacturing campus in Pyeongtaek, South Korea, to meet demand for memory chips used by generative AI models. Three fabs already operate around the clock, a fourth is coming online, and a fifth is under construction. Key numbers: Almost $2.5 trillion wiped off tech stocks; Nasdaq's worst day since April 2025; Magnificent Seven lost Why it matters: The AI trade unraveled, with the sell-off spreading to Asia and Europe as investors weighed fears of an AI slowdown. Samsung's expansion is framed as infrastructure powering the AI boom.

Samsung is building a large semiconductor manufacturing campus in Pyeongtaek, South Korea, to meet demand for memory chips used by generative AI models. Three fabs already operate around the clock, a fourth is coming online, and a fifth is under construction.

The AI trade unraveled, with the sell-off spreading to Asia and Europe as investors weighed fears of an AI slowdown. Samsung's expansion is framed as infrastructure powering the AI boom.