12 US billionaires gained almost $1 trillion in wealth in 2024 as the stock market delivered another year of massive returns

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• The 2024 stock market boom fueled a surge in net worth gains for America's richest.
• Elon Musk's wealth increased by $213 billion, driven by Tesla's stock rise after the election.
• Other big gains came from Mark Zuckerberg of Meta and Jensen Huang of Nvidia.

The stock market boom in 2024 made the rich even richer, with US billionaires dominating Bloomberg's Billionaire Index.

According to the index as of December 30, just 11 American...