The SpaceX IPO could create the first Trillionaire, with Musk's 44% ownership of SpaceX/xAI estimated to be worth $426 billion. This makes him worth more than twice the current three figures, including those of Bezos, Zuckerberg, and Ellison, who have lost wealth in 2026. Musk's wealth is also worth $14 billion. However, without a SpaceX IPO, he could continue to add to his net worth through rising valuations of his holdings in other businesses. This could create a greater wealth divide between Musk and other billionaires.