IAN MAULE / AFP / Getty Images Amazon shares climbed to an all-time high on the tech giant's $38 billion deal with OpenAI Key Takeaways Major U.S. equities indexes were mixed Monday afternoon, as tech stocks gained but most other sectors declined. Amazon shares rose to a record high on a$38 billion deal to provide AI infrastructure for OpenAI. Kenvue shares soared after Kimberly-Clark said it would buy the Tylenol maker in a nearly $49 billion deal. Major U.S. equities indexes were mixed Monday a ...