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How SpaceX and Tesla Shares Sent Elon Musk Above and Below $1 Trillion
Musk’s estimated wealth topped $1 trillion on Oct. 5, fell below it by Oct. The swings tracked SpaceX and Tesla share prices.
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Key takeaways
- Musk’s estimated wealth topped $1 trillion on Oct. 5, fell below it by Oct.
- The swings tracked SpaceX and Tesla share prices. Morgan Stanley reiterated a $300 SpaceX price target, while a reported financing plan for Nvidia AI chips coincided with a midweek decline.
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openai.comCreate a landscape editorial hero image for this Studio Global article: How did Elon Musk lose and regain his status as the world’s only trillionaire during October 5–9, 2026, according to Forbes and Bloomberg, i. Article summary: Musk regained trillionaire status on October 5, fell below it on October 8, and crossed back above it on October 9; Forbes and Bloomberg reported different estimates at different points in the week. [1][6][14] The availa. Topic tags: general, news, general web. Style: premium digital editorial illustration, source-backed research mood, clean composition, high detail, modern web publication hero. Use reference image context only for broad subject, composition, and topical grounding; do not copy the exact image. Avoid: logos, brand marks, copyrighted characters, real person likenesses, fake screenshots, UI text, readable text, watermarks, charts with fake numbers
Elon Musk’s estimated fortune crossed the $1 trillion mark twice in the week of October 5–9, 2026. A rally in SpaceX and Tesla shares lifted him above the threshold on Monday; a midweek retreat pushed him below it; and gains in both stocks put him back above $1 trillion on Friday morning. Forbes and Bloomberg published different totals, so the figures are best read as estimates from separate indexes and timestamps—not as one consistent daily ledger. 1
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The October 5–9 timeline
- Monday, October 5: Forbes estimated Musk’s wealth at about $1 trillion, up $30.6 billion from Friday. SpaceX shares climbed nearly 8% during the session, while Tesla also rose. Bloomberg later put his fortune at $1.04 trillion after a reported $65 billion gain that day.
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- Tuesday and Wednesday: Fortune, citing the Bloomberg Billionaires Index, reported that Musk’s fortune reached about $1.05 trillion on Tuesday before declining. Forbes estimated he lost $21 billion on Wednesday morning after SpaceX shares fell following a report about a possible financing plan for Nvidia AI chips.
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- Thursday, October 8: Bloomberg’s estimate fell to $987 billion, according to Fortune. A separate report put Forbes’s estimate at $991.6 billion, down $36.4 billion that day as SpaceX and Tesla shares declined. The two totals differ, but both put him below the trillion-dollar threshold.
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- Friday, October 9: Forbes reported that gains in SpaceX and Tesla added about $22 billion during the morning, bringing Musk to $1.012 trillion around 10 a.m.
The sources do not provide a reliable, consistent net-worth figure for every day in the week. Forbes’s and Bloomberg’s snapshots use different estimates and timings, so their numbers should not be combined as if they were daily closing values. 1
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Why SpaceX mattered so much
SpaceX was a major driver of the swings. On October 5, its shares rose 7.63% to $171.09 at the close. Morgan Stanley had reiterated a $300 price target—about 75% above that closing price—and analysts described the shares as “cheap” at current prices. 9
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The direction reversed midweek. Reports that SpaceX was seeking $40 billion in financing to buy Nvidia AI chips were followed by a decline in its shares. The report also noted pressure on SpaceX bonds and credit-default swaps. That sequence offers a plausible link to the market reaction, but it does not establish that the financing plan alone caused the broader change in Musk’s estimated fortune. 7
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Musk’s reported SpaceX position helps explain why share-price moves can have a large effect on his estimated wealth. Fortune described him as holding around 4.76 billion SpaceX shares, including 1.3 billion unvested restricted shares. The available reporting does not provide a consistent account of how each wealth index treats those unvested shares, so the holdings figure should not be mistaken for a precise, universally applied calculation. 42
The summer reversal behind the October swings
The October rebound followed months of sharp changes in Musk’s estimated wealth. Forbes reported that he first became a trillionaire in June, after SpaceX went public. His fortune then fell below $700 billion in July before recovering to nearly $900 billion in August. 10
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Forbes’s September ranking put more detail on that reversal: it estimated a $363 billion loss in July, followed by a $202 billion gain in August, when SpaceX and Tesla shares rose 33% and 18%, respectively. 44
How Bezos’s rise changed the ranking picture
Musk remained far ahead of other billionaires, but Jeff Bezos’s estimated wealth rose substantially in the September-to-October rankings. Forbes put Musk at $892 billion in its September ranking, with Larry Page second at $277 billion and Bezos third at $268 billion. 44
By October 1, Forbes estimated Musk’s fortune at $936 billion and Bezos’s at $370 billion. It attributed Bezos’s roughly $102 billion monthly gain in part to private investors valuing Blue Origin above $130 billion and his industrial-AI startup Prometheus at $41 billion. The same October ranking put the ten richest people’s combined wealth at $3.1 trillion—a total wealth estimate, not a daily gain. 10
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On October 5, Forbes estimated Bezos at $371.5 billion against Musk’s roughly $1 trillion, a gap of about $628.5 billion. That comparison, like the other figures here, is a snapshot rather than a measure of daily change. The available sources do not establish the requested combined daily gains for the top ten or a consistent day-by-day comparison for Page, Michael Dell, and Sergey Brin. 13
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Musk’s estimated wealth topped $1 trillion on Oct. 5, fell below it by Oct.
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Musk’s estimated wealth topped $1 trillion on Oct. 5, fell below it by Oct. The swings tracked SpaceX and Tesla share prices. Morgan Stanley reiterated a $300 SpaceX price target, while a reported financing plan for Nvidia AI chips coincided with a midweek decline.
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