What happened
Morgan Stanley's Adam Jonas said the two companies "share tech, talent, and infrastructure," citing 71 Tesla references in SpaceX's S-1, $506 million in 2025 Megapack buys, and the joint Macrohard AI agent platform.
Why it matters
The note treats physical AI — applying AI to machines and real-world environments — as increasingly strategic for both companies, with SpaceX providing computing and satellite links while Tesla supplies robotics and energy storage.
What to watch
The 4.9 gigawatts of SpaceX computing capacity by end-2027 and 15.3 gigawatts by 2031 are estimates cited in the note, so the scale of the collaboration hinges on whether those buildouts proceed; watch Terafab's construction cost, reportedly estimated at more than $119 billion.
WHO IT HITSInvestors holding SpaceX or Tesla shares, and analysts tracking the two companies' physical AI and energy plans, may need to treat them as an increasingly linked pair rather than separate stories. Suppliers tied to Terafab or the 100-gigawatt solar target could also be affected if those projects move ahead.
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The relationship Morgan Stanley describes is not new, but the note pulls together threads that have been building: SpaceX's S-1 filing, prepared ahead of its initial public offering, already contained 71 references to Tesla, with 34% concerning direct collaboration and 41% related to governance and related-party transactions. That disclosure gives the bank's thesis a paper trail beyond executive comments.
Ahead of the offering, SpaceX President Gwynne Shotwell said there is "no question" about synergies between the two companies. The purchases Morgan Stanley cites — $506 million in Megapack systems and $131 million in Cybertrucks during 2025 — support SpaceX's Colossus computing cluster, while SpaceX is integrating Starlink connectivity into Tesla vehicles beginning with Cybercab.
The arrangement runs both ways, with SpaceX providing computing resources and satellite connectivity and Tesla contributing robotics, energy storage and manufacturing expertise. How far this goes may hinge on capital-intensive projects like Terafab, the Texas semiconductor facility being developed with Intel, and the shared 100-gigawatt solar manufacturing target, both of which would require substantial execution to materialize.
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