If SpaceX goes public next year with a valuation of $1.5 trillion, Musk could become the world's first trillionaire.

according to Bloomberg Billionaires Index estimates, if Elon Musk's space company SpaceX successfully goes public next year with a valuation of $1.5 trillion, his personal net worth will surge from the current $460.6 billion to about $952 billion, just one step away from becoming the world's first "trillionaire." Currently, Musk holds about 42% of SpaceX shares. Based on a pre-IPO valuation of $1.5 trillion, the value of his stake in the company alone will rise to over $625 billion, far exceeding the current approximately $136 billion. This does not include his multibillion-dollar holdings in several other companies, including Tesla, the world's highest-valued automaker.