The richest man in the world could more than double his $460.6 billion fortune if SpaceX succeeds in going public next year at a valuation of $1.5 trillion.

Elon Musk’s stake in his space company alone would be worth more than $625 billion if that were to occur, according to calculations by the Bloomberg Billionaires Index, up from $136 billion today. That doesn’t include his multibillion-dollar stakes in a number of other enterprises, including the world’s most valuable carmaker, Tesla Inc.

His total fortune would be $952 billion, up about $491 billion from its current level, according to the calculations, which use a $1.5 trillion pre-money valuation for its estimate.

An initial public offering opens up the second clear path for Musk to become the world’s first trillionaire, after las

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