DeepSeek topped the Apple App Store chart and sparked fears the Chinese company was quickly catching up with OpenAI's ChatGPT while costing far less.

Microsoft was nearly 4% shortly before midday, while Palantir fell 6%, and Alphabet dipped 3%. Dutch chip equipment ... the Apple app store's Top Free Apps chart. The Silicon Valley investor ...

Wall Street’s superstars tumbled Monday as a competitor from China threatens to upend the artificial-intelligence frenzy they’ve been feasting on.

Shock to financial markets came from Chinese firm whose AI app it says was made at a fraction of US AI models.

DeepSeek had already hit the top of the chart for free apps on Apple’s App ... rocked AI-related stocks worldwide. In Amsterdam, Dutch chipmaking equipment company ASML slid 7%.

DeepSeek's app had already hit the top of Apple's App Store chart by Monday morning ... rocked AI-related stocks worldwide. In Amsterdam, Dutch chip supplier ASML slid 7.4%.

Wall Street's AI stocks plummet as Chinese competitor threatens dominance, causing market turmoil and bond rush.

DeepSeek had already hit the top of the chart for free apps on Apple’s App ... rocked AI-related stocks worldwide. In Amsterdam, Dutch chipmaking equipment company ASML slid 7%.