Elon Musk becomes first person on Earth worth $800 billion, here's his most precious asset

Tesla CEO Elon Musk has now become the first person in history to surpass a net worth of $800 billion after the landmark merger of his rocket company SpaceX and his artificial intelligence company xAI. As reported by Forbes, the deal valued the combined entity at $1.25 trillion, giving a boost to Musk’s personal fortune by $84 billion to a staggering $852 billion.

The merger of the two companies restructured Elon Musk’s holdings and gave him 43% stake in the newly combined company which is estimated to be $542 billion. Before the acquisition deal between SpaceX and xAI, Elon Musk held 42% stake in SpaceX which valued around $336 billion and a 49% stake in xAI which was worth $122 billion. With SpaceX now absorbing xAI, the rocket maker has become Elon Musk’s most precious asset, outpacing his other holdings.

Tesla still a major contributor to Elon Musk’s wealth

Elon Musk owns around 12% stake in Tesla, valued at $178 billion along with stock options worth another $124 billion. These figures exclude the record-breaking pay package approved by Tesla shareholders in November, which could grant Musk up to $1 trillion in additional stock if Tesla manages to hit the ambitious ‘Mars shot’ milestones including an eightfold increase in market cap over the next decade.

Second major merger for Elon Musk

This is the second major merger involving Elon Musk’s companies in less than a year. In March last year, Musk combined xAI and his social media platform X (formerly known as Twitter). In the deal, xAI was valued at $80 billion and X at $33 billion. The dual role of Musk as a buyer and seller raised eyebrows over valuation transparency, but with SpaceX now expected to go public later this year, the market will soon have its say.

Four Milestones in Four Months

Musk’s rise to the top has been meteoric.

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• li1October 2025: First person to reach $500 billion, after leaving President Trump’s Department of Government Efficiency to refocus on Tesla.
• li1December 15: First to hit $600 billion, following SpaceX’s valuation jump to $800 billion.
• li1December 19: Crossed $700 billion, after the Delaware Supreme Court reinstated his Tesla stock options.
• li1February 2026: Surpassed $800 billion, thanks to the SpaceX-xAI merger.