Elon Musk Surpasses $800 Billion Net Worth Following SpaceX-xAI Merger

Key facts

• Tesla CEO Elon Musk has become the first person in history to surpass a net worth of $800 billion, reaching a total of $852 billion.
• The wealth surge followed the merger of his rocket company SpaceX and artificial intelligence company xAI, valuing the combined entity at $1.25 trillion.
• Musk holds a 43% stake in the newly combined SpaceX-xAI entity, which is estimated to be worth $542 billion.
• Prior to the merger, Musk held a 42% stake in SpaceX valued at $336 billion and a 49% stake in xAI worth $122 billion.
• Musk owns approximately 12% stake in Tesla valued at $178 billion, along with stock options worth $124 billion.
• A previous merger in March 2025 combined xAI and social media platform X, valuing xAI at $80 billion and X at $33 billion.
• Musk reached the $500 billion milestone in October 2025, $600 billion on 15 December 2025, and $700 billion on 19 December 2025.
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