Elon Musk’s estimated wealth jumped by $45 billion on Thursday to a record $722 billion after a SpaceX IPO prospectus forced a sharp reset in how his stake had been valued. The filing showed that far less of his SpaceX stock was tied up as collateral than had assumed, and the rich-list calculation moved almost instantly.
The jump puts Musk in a class of his own even by the standards of modern mega-fortunes. His $722 billion estimate is larger than the market value of Exxon Mobil, Visa and Intel, and it reflects the latest lift from the companies that have driven his wealth higher for years: Tesla and SpaceX.
SpaceX’s prospectus was the catalyst because it offered fresh transparency into Musk’s personal finances. Billionaires Index removed a $45 billion liability after the filing disclosed that, as of May 1, Musk had pledged about 238,000 of his 849.5 million SpaceX shares as security for personal indebtedness, or less than 0.3% of his holdings. That was far below the 57% collateral assumption had been using.
Musk had said in 2019 that he had borrowed against some of his SpaceX shares, but the new filing showed the scale was tiny compared with what had been built into the estimate. scrapped the liability once the pledge amount was clear, lifting his net worth by the same amount in a single day. He has gained an unmatched $103 billion this year.
The broader picture explains why the number keeps moving so fast. Musk owns about 11% of Tesla, whose stock has surged roughly 14-fold since the start of 2020 and lifted its market capitalization to $1.3 trillion. SpaceX, meanwhile, saw its valuation rocket around 20-fold between the spring of 2020 and December last year, and the company has targeted a public-company valuation north of $1.5 trillion.
There is still one important unknown: the filing clarifies how much of Musk’s SpaceX stake is pledged, but it does not lay out the exact dollar value of his updated SpaceX and Tesla holdings. What is clear is that the latest filing did more than polish a balance sheet; it changed the size of the world’s biggest fortune in a way that left little room for doubt.
