Jensen Huang, chief executive officer of Nvidia Corp., during the US-Saudi Investment Forum at the Kennedy Center in Washington, DC, US, on Wednesday, Nov. 19, 2025.Stefani Reynolds | Bloomberg | Getty ImagesThis is CNBC's Morning Squawk newsletter. Subscribe here to receive future editions in your inbox.Here are five key things investors need to know to start the trading day:1. Nvidia enters the chatShares of Nvidia and Alphabet have diverged in recent days as the latter steps into the artificial intellige ...