The world's 500 richest people collectively saw their fortunes grow by $852 billion in the first half of 2023, with each member of the Bloomberg Billionaires Index making an average of $14 million per day. This was the strongest six-month period for billionaires since the latter half of 2020. The gains were driven by a stock market rally, despite concerns about central bank interest rates, the conflict in Ukraine, and regional bank crises. Elon Musk and Mark Zuckerberg saw significant increases in their net worth, but Gautam Adani suffered the biggest loss, dropping $60.2 billion.