9AM HOUR: Nvidia Adds $150B to Stock Buyback; Oil Prices and Yields Surge; MongoDB CEO Leaves for Meta 9/28/26

Carl Quintanilla and Jim Cramer led off the show with a double dose of news from Nvidia: The company said it is adding a record-setting $150 billion to its share repurchase program. The tech giant also unveiled a software platform to prevent AI agents from misbehaving. Hear what Nvidia CEO Jensen Huang told CNBC about the "Open Agent Safety Platform." The anchors discussed stocks under pressure as Treasury yields and oil prices jumped — after President Trump rejected Iran's proposal to reopen the Strait of Hormuz. Shares of MongoDB tumbled after the company announced its CEO C.J. Desai is departing to take a senior position at Meta. Also in focus: Meta's "Muse" rally cools; Walmart's AI message; SpaceX launches its Starship rocket into orbit; Cramer highlights a group of stocks that has more than doubled year-to-date; Anthropic CEO Dario Amodei gets spoofed on NBC's "Saturday Night Live." Squawk on the Street Disclaimer