Elon Musk has given his clearest public support yet to merging Tesla and SpaceX, floating the idea of a combined company that The Independent reports could be valued at about $3.5 trillion.
That number is the bait. The harder story is the structure.
No merger agreement has been announced. There is no filed transaction for shareholders or regulators to examine. What exists, on the record, is Musk’s endorsement of the logic: Tesla and SpaceX increasingly share interests in AI, chips, robotics, communications infrastructure and manufacturing. In that telling, one company would reduce the friction of running adjacent empires through separate boards, separate investor groups and separate capital demands.
It is not difficult to see why that appeals to Musk. Tesla brings public-market access, mass manufacturing experience, batteries, autonomous-driving work and a robotics program. SpaceX brings launch capability, Starlink’s satellite network and deep relationships with the US government. The Independent also reports collaboration around semiconductor production and crossover between SpaceX technology and Tesla’s future products. A single corporate roof would make internal coordination easier.
Ease for the controller, though, is not the same thing as safety for everyone else.
A merger would ask investors in a listed carmaker and energy company to absorb a private rocket and satellite business with its own heavy capital needs, technical risks and political sensitivities. SpaceX investors, in turn, would inherit Tesla’s exposure to a fiercely competitive vehicle market and to the long-running question of how quickly its self-driving and robot ambitions can become durable businesses rather than expensive promises.
The governance problem sits in plain view. The Independent notes that Musk owns nearly a fifth of Tesla and holds voting control at SpaceX. If the argument for merging is that the projects are intertwined, the counterargument is just as direct: investors may reasonably ask whether intertwined projects become harder, not easier, to police when the same founder gains broader freedom to move money, talent and strategic priority across them.
Then there is the state. SpaceX is not simply another fast-growing tech company. It is a major contractor for NASA, the US military and intelligence agencies, according to The Independent. Tesla, meanwhile, has large manufacturing and commercial operations in China. Put those facts in one corporate body and the merger stops looking like an ordinary scale play. It becomes a question about export controls, technology safeguards, procurement oversight and whether governments that tolerate a complicated founder-led company in one sector will tolerate the same structure when rockets, satellites and sensitive contracts are inside the bundle.
That does not make the merger impossible. Conglomerates are often sold as machines for efficiency before they are tested as machines for accountability. Musk is betting that the same investors who have tolerated his sprawling ambition in separate containers might accept a larger one.
They may not. The companies’ overlap in AI, chips and robotics is real enough to explain the proposal. It is also exactly what would force regulators and shareholders to ask whether the benefits of integration would be captured privately while the risks spread outward: to minority investors, to public customers, and to governments that would have to decide how much strategic infrastructure can sit inside one man’s increasingly unified project.
For now, the event is narrower than the valuation headline suggests. Musk has endorsed the idea. A deal, the terms that would define it, and the scrutiny that could stop it all remain absent.
Marcus Azzopardi 
Gabriel Fenech 
Alex de Valletta