Silicon Valley January 27, 2025 11:12 am Nvidia loses more than $500 billion in market value after Chinese AI startup bursts onto scene Shares of chipmaker Nvidia plunged Monday, for its worst day since the global market selloff in March 2020 that the coronavirus pandemic triggered. US & World Videos 2:23 Tech giant promises $100 billion to bring more business to US 4:47 A closer look: Elon Musk answers questions at the White House, OpenAI feud 2:10 Chinese AI company shakes up tech world 1:50 Tech sector job growth attributed to AI 2:23 A closer look: Silicon Valley software jobs