SpaceX Is Valued at $1.7 Trillion. A Large Portion of That Is a Bet on AI, Not Rockets.

Since SpaceX's IPO opened trading last week at a market capitalization of $1.7 trillion, the public conversation has focused on Musk's historic paper wealth. What has received less scrutiny is what SpaceX is actually claiming to be worth — and why.

The $28.5 Trillion Number Deserves a Hard Look

SpaceX's IPO filing stated that the company believes it has access to "the largest actionable total addressable market in human history": $28.5 trillion, according to The Atlantic's review of the filing. Of that figure, $26.5 trillion is attributed to AI infrastructure and applications. That leaves roughly $2 trillion — still an enormous number — tied to the core aerospace and satellite business that built SpaceX's actual reputation.

Before the IPO, SpaceX acquired Musk's artificial-intelligence company xAI, which itself had acquired X (formerly Twitter) in 2025. The consolidation means SpaceX's public market valuation now wraps social media and AI into what was originally pitched to the world as a rocket company.

An adviser to the deal was candid about the math. Quoted by the Financial Times, the adviser said: "From a strict corporate finance perspective, the valuation makes no sense. But Elon is great at getting people to dream."

That is a remarkable thing for someone involved in the deal to say on record.

What SpaceX's Core Business Actually Produces

None of this erases the real achievements. SpaceX's rocket business is a genuine engineering success. Its reusable-launch infrastructure has reshaped the commercial space industry. Starlink generated more than $11 billion in revenue last year, according to The Atlantic, making it a profitable, functioning business by any reasonable standard. The company posted a net loss of $4.94 billion last year on $18.7 billion in revenue overall.

Starlink has also proven strategically significant beyond revenue. Its role providing communications in Ukraine demonstrated that satellite internet can matter in active conflict zones in ways no spreadsheet fully captures.

The strongest defense of the valuation is that markets routinely price in future optionality, not just current cash flows. If SpaceX executes on even a fraction of its asteroid-mining, space-tourism, and AI ambitions, a trillion-dollar-plus valuation could look conservative in retrospect.

Where the Skeptics Have Ground to Stand On

The concern worth taking seriously: SpaceX's filing was, according to The Atlantic's read of it, "more oriented around its future ambitions and assumed triumphs" than its demonstrated business. The company listed goals including mining asteroids and wanting to "extend the light of consciousness to the stars." Those are not revenue projections.

Musk's track record on timelines is relevant context here. He projected a spacecraft on Mars by 2018. That did not happen. Last year, SpaceX's Starship — the flagship next-generation rocket — experienced what the company called "rapid unscheduled disassembly" on three separate test flights. The rocket blew up three times. Progress is being made, but the gap between public ambition and actual delivery is measurable.

Ben Tarnoff and Quinn Slobodian, authors of the book Muskism, argue in The Atlantic that Musk's social-media strategy functions as financial infrastructure: "Every joke, every poll is a stress test of responsiveness. Can he still move markets with a post?" The Dogecoin phenomenon — a cryptocurrency based on a 13-year-old meme of a shiba inu that Musk's attention made genuinely valuable for a period — is their exhibit A.

SpaceX is not Dogecoin. The rockets are real, the satellites are real, and the revenue is real. But the question of how much of the $1.7 trillion valuation is pricing actual future cash flows versus pricing Musk's ability to sustain a narrative is a question the IPO filing itself does not fully answer.

Legitimate Disclosure Questions Remain

What observers will eventually have to reckon with is whether folding xAI and X into a rocket company, and then projecting a $26.5 trillion AI addressable market in the prospectus, meets the standards investors should demand for materiality and accuracy. That is an open question, not a verdict.

For now, the unresolved issue sitting at the center of this IPO is straightforward: investors who bought SpaceX shares last week were buying a space company, an AI company, a social media platform, and a story all bundled together under one ticker, with a valuation that at least one deal adviser privately admitted doesn't hold up under conventional corporate finance analysis. Whether Musk can eventually justify it with results is the only thing that will actually settle the argument.