Musk's wealth surge began in the autumn of 2025. As Tesla's stock experienced a strong rise in October, his personal net worth naturally surpassed the $500 billion mark. This record not only solidified his position as the world's richest person, but also made him the first super-rich individual in human history to enter the "500 Billion Club."
Entering December, Musk's wealth growth shifted to the space sector. On December 15, SpaceX's company valuation soared from $400 billion in August to $800 billion. Affected by this revaluation of asset value, Musk's net worth crossed another major threshold within two months, becoming the first person in the world to have a fortune exceeding $600 billion.
A few days after his wealth broke the $600 billion mark, a legal breakthrough added to his fortune. The Delaware Supreme Court announced that it had restored Musk's previously revoked Tesla stock options that had been canceled by a lower court in 2024. This key ruling caused his assets to experience a leap forward, quickly pushing his personal wealth into the $700 billion range.
The final wealth explosion came from the strategic merger between SpaceX and xAI. According to Forbes, this merger directly added $84 billion in assets to Musk. With this, Musk's net worth reached a record high of $852 billion, officially making him the first billionaire in history to surpass $800 billion, completing a remarkable feat of crossing four billion-dollar thresholds within four months.
