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 billionaires and one billionaire family gained nearly $1 trillion in wealth. The gains were fueled by a surge in technology stocks, with the Nasdaq 100 finishing the year up about 25%.

The biggest wealth gain came from Tesla CEO Elon Musk, who saw his wealth rise a staggering $213 billion as shares of the electric vehicle maker soared following Donald Trump's election win in November.

In fact, the wealth gained by Elon Musk this year alone is nearly equal to the net worth of the world's second-richest person, Jeff Bezos.

All told, 11 individual billionaires and one family added $841 billion to their total wealth in 2024.