Which billionaires gained and which lost the most wealth this year?

Elon Musk gained the most wealth among the world's top 500 richest people this year, adding $96.6 billion in six months, as per Bloomberg. He's followed by Mark Zuckerberg, Jeff Bezos, Larry Ellison and Bernard Arnault. On the other hand, Gautam Adani and Carl Icahn lost the most wealth at $60 billion and $13 billion, respectively, over Hindenburg Research's allegations.