Elon Musk's net worth jumped by $165 billion in a single day, according to the Bloomberg Billionaires Index, as SpaceX shares rose nearly 20% on their second day of trading. The single-day rise in Musk's wealth is more than the entire fortune of billionaires like Bill Gates, Gautam Adani, and Warren Buffett. Musk's net worth now stands at $1.27 trillion.