Elon Musk, Jeff Bezos, and Mark Zuckerberg saw their net worths increase by over $30 billion on May 12, 2025, as US stock markets rallied following a US-China tariff agreement. Musk's wealth rose by $11 billion, Bezos by $13 billion, and Zuckerberg by $12 billion, with significant gains in their companies' market capitalizations. The Dow Jones, S&P 500, and Nasdaq Composite all experienced notable increases, reflecting investor optimism after the tariff reductions proposed by both nations.