With five of the Mag 7 reporting this week, we discuss whether investors should temper their capex expectations. The trial between Elon Musk and Sam Altman kicks off. Plus, the potential next frontier in preventing heart attacks.

OpenAI's Viability, UAE to Exit OPEC, and Climbing Consumer Costs 4/28/26

"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.