Western Digital (NASDAQ: WDC) stock tumbled nearly 9% following a broader tech selloff sparked by a classic "sell-the-news" profit-taking reaction to Samsung's blockbuster earnings guidance.

Western Digital (WDC) stock jumps 7.8% as the AI memory boom reignites. Get the latest on earnings estimates and market catalysts.

Samsung’s 1,800% profit surge fails to stop Asian tech sell-off as investors cash in AI gains and fret over lofty chip valuations and geopolitical risks.