Nvidia strikes a $20B deal with Groq. China imposes sanctions on 20 U.S. defense-related companies. Plus, as holiday shopping wraps up, returns are just beginning.

Mag 7 Decoupling, A Crypto Winter & Housing's Inflection Point? 12/29/25

"The Exchange" on CNBC is a one-stop shop for the day's top business stories, along with breaking news and the must-see market movers heading into the back half of the trading day. This newsroom-based program also features lots of original reporting, in-depth conversations and showcases CNBC's award-winning investigative work.