KEY TAKEAWAYS A slew of stocks, including chip maker Nvidia, tumbled Monday after Chinese startup DeepSeek released an AI model that runs on less-advanced chips and at a lower cost than those of U.S.

Looking for the next big thing in AI and tech stocks? Check out why one supporting player might be a better pick than the usual household name.

Who will drive the stock market as the Fed holds its first meeting of the year? This could be the worst day in nearly five years for the PHLX Semiconductor Index, led by major weakness in hot artificial-intelligence plays like Nvidia Corp.

Shares of semiconductor makers were dropping early Monday as a Chinese AI model triggered questions over their lofty valuations.