Oracle co-founder Larry Ellison just overtook Elon Musk as the world’s second-richest person with a fortune nearing $400 billion. Oracle’s stock is up 40% on AI demand, backed by a $450 billion cloud backlog and major deals with OpenAI and Nvidia. Ellison’s family also bought Paramount Global and is building a $500 billion data center network with SoftBank and Sam Altman.