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Elon Musk’s estimated fortune reached $1.04 trillion after the October 5, 2026 market session, according to the Bloomberg Billionaires Index as reported on October 6. The reported rise followed gains in SpaceX and Tesla, whose stakes accounted for more than 98% of the estimate. It is an index estimate of wealth—not a cash balance or an audited personal balance sheet.
How much is Elon Musk worth now?
The Bloomberg Billionaires Index put Musk’s estimated net worth at $1.04 trillion after the October 5, 2026 market session. Fortune reported that the index estimate had been $976.9 billion before the increase. Bloomberg, in a report republished by Business Standard on October 6, described a $65 billion one-day rise to $1.04 trillion. These are attributed estimates, not company-reported or audited totals. Fortune; Business Standard, republishing Bloomberg.
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Why did the estimate rise?
The reports attribute the increase mainly to the value of Musk’s SpaceX and Tesla stakes. Bloomberg’s October 6 account said SpaceX had gained 13% and Tesla 6.7% since the beginning of October, and that the two stakes together represented more than 98% of the index’s estimate. Fortune separately reported that SpaceX shares rose nearly 8% on October 5. Those percentages refer to the periods and reporting cited, not guaranteed or continuing returns. Business Standard; Fortune.
What makes up the estimate?
The headline figure reflects estimated values attributed to company stakes and other assets. Fortune’s account put Musk’s SpaceX holdings at approximately 4.76 billion shares, including 1.3 billion unvested restricted shares, and attributed approximately $156.6 billion to his Tesla stake. These are Fortune-reported figures, not independently verified company disclosures or audited valuations. Fortune also listed holdings in The Boring Company and Neuralink, but the reports identify SpaceX and Tesla as the dominant components.
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Because much of the estimate is tied to equity values, $1.04 trillion should not be read as money Musk holds in cash or could immediately spend. A change in share prices or in assumptions used to value holdings can materially change the estimate. SpaceX’s potential public offering is one factor that may affect how its stake is valued; the Associated Press discusses that broader offering context, but does not provide an independent estimate of Musk’s October 5 fortune. Associated Press.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Has Musk been worth more than $1 trillion before?
Yes. The Bloomberg Billionaires Index estimate crossed the trillion-dollar mark in June 2026, then fell below it. Fortune reported that the estimate dropped from $1.32 trillion on June 16 to $957 billion on June 24. Bloomberg’s October report likewise said Musk had fallen back below the threshold after SpaceX shares slumped. The October return above $1 trillion is therefore a dated rebound in a fluctuating estimate, not a permanent threshold. Fortune; Business Standard.
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