Elon Musk’s fortune has soared to a record $852 billion following the merger of artificial intelligence startup xAI into SpaceX, marking an unprecedented milestone in global wealth rankings.

According to Forbes, Musk’s net worth jumped by $84 billion after SpaceX completed the acquisition of xAI. The combined entity is now valued at $1.25 trillion, with Musk holding a 43% stake, worth roughly $542 billion. Prior to the merger, his holdings were split between 42% of SpaceX (valued at $336 billion) and 49% of xAI (around $122 billion).

SpaceX has now become Musk’s most valuable asset by a wide margin. He also retains a 12% stake in Tesla, valued at $178 billion, along with stock options worth about $124 billion. These figures do not yet include Tesla’s record compensation package approved by shareholders in November 2025, which could grant Musk shares worth up to $1 trillion over the next decade.

Over the past year, Musk has repeatedly set new financial records. In October 2025, he became the world’s first $500 billion individual as Tesla shares doubled following his departure from the Government Efficiency Board (DOGE). By mid-December, his wealth reached $600 billion, driven by SpaceX’s rapid growth, then surged to $700 billion just days later after a favorable ruling by the Delaware Supreme Court on his Tesla stock award.

With a net worth of $852 billion, Musk now leads the world’s rich list by an extraordinary margin, outpacing second-ranked billionaire Larry Page by $578 billion.