Ten US billionaires made around $796 billion in a market rally driven by tech stocks this year, Daily Beast reported. Elon Musk made the most at $252 billion, followed by Walmart's Walton family ($148 billion) and Mark Zuckerberg ($82 billion). Oracle's Larry Ellison ($73 billion), NVIDIA's Jensen Huang ($72 billion) and Jeff Bezos ($63 billion) are also on the list.