Nvidia shares' 9% recovery Tuesday was the second-best day in terms of market cap added for any company ever—but the company faced another selloff Wednesday.

Chip stocks in the U.S. and Europe rose on Wednesday for a second straight day, recovering from a punishing selloff triggered by China's low-cost DeepSeek artificial intelligence tool at the start of the week.

These days, nothing is certain about the tech market or the world at large. Even Nvidia's seemingly bulletproof stock took a hammering on Monday, enduring

Top White House advisers this week expressed alarm that China's DeepSeek may have benefited from a method that allegedly piggybacks off the advances of U.S. rivals called "distillation." The technique,

DeepSeek, a Chinese startup that's throwing tech valuations into chaos and challenging U.S. dominance in the field. Its creators claim it can do what U.S. models do but at a fraction of the cost. Steve DiPaola,

Tech stocks on Wall Street took a tumble on Monday after Chinese artificial intelligence startup DeepSeek released a free AI chatbot and their app climbed to the top of app stores. CBS News MoneyWatch correspondent Kelly O'Grady explains why the company is causing a stir.