SpaceX (Unlisted (US):SPACEX) has officially entered the public markets arena, filing for what could become the largest IPO in history — and in the process reframing itself less as a rocket company and more as an artificial intelligence infrastructure giant.
The Elon Musk-led company lodged its long-awaited S-1 prospectus with the US Securities and Exchange Commission on Wednesday, targeting a Nasdaq listing under the ticker SPCX and reportedly seeking a valuation between US$1.5 trillion and US$2 trillion.
While SpaceX’s rockets, satellites and Mars ambitions still dominate the public imagination, the filing itself tells a different story. The company’s central pitch to investors is increasingly tied to AI, data infrastructure and massive long-term computing demand rather than launch services alone.
In perhaps the most eye-catching claim in the prospectus, SpaceX argued it had identified “the largest actionable total addressable market in human history”, estimating a combined opportunity worth roughly US$28.5 trillion across AI infrastructure, enterprise applications, connectivity and communications markets.
AI becomes the main event
The filing revealed just how aggressively SpaceX has shifted towards AI following its integration with xAI earlier this year.
According to the prospectus, the company generated US$18.7 billion in revenue in 2025 but posted a US$4.9 billion net loss, while first-quarter 2026 losses widened sharply as spending accelerated across GPU infrastructure, data centres and AI development.
The AI division alone reportedly lost billions of dollars in the latest quarter as research and infrastructure expenditure surged.
Starlink remains the financial engine of the broader business. The satellite internet division generated the majority of quarterly revenue and was the only profitable segment disclosed in the filing, highlighting how much of Musk’s broader technology ecosystem is still effectively being funded by low Earth orbit broadband subscriptions.
Still, investors appear willing to entertain the longer-term vision.
The prospectus outlined ambitions extending well beyond telecommunications, including orbital data centres, large-scale solar manufacturing, enterprise AI applications and deeper integration across Musk-linked businesses spanning xAI, Tesla and X.
That sprawling ecosystem is part of what makes the IPO both compelling and difficult to value.
Wall Street’s biggest test yet?
The sheer scale of the proposed listing is already rippling through broader markets.
Analysts have speculated that institutional capital is being repositioned ahead of a wave of anticipated mega-IPOs, including potential future listings from OpenAI and Anthropic.
That raises a broader question hanging over the deal: how much of the valuation is tied to current economics, and how much is effectively a bet on Musk’s future technological ambitions?
Even bullish analysts have acknowledged the scale of the assumptions embedded in the IPO narrative.
The filing’s enormous total addressable market calculations — particularly around enterprise AI — drew scepticism from parts of Wall Street, with some commentators noting that TAM projections in tech prospectuses often represent aspirational scenarios rather than near-term revenue opportunities.
At the same time, SpaceX’s public-market debut arrives during one of the most enthusiastic periods for AI investment since the generative AI boom began.
Starship still matters
Despite the AI-heavy framing, SpaceX’s rocket business remains central to the story — both strategically and symbolically.
That was reinforced this week when the company scrubbed the planned 12th test flight of its upgraded Starship V3 rocket after a technical issue involving launch tower hardware. SpaceX is now targeting another launch attempt as early as Friday.
The timing is notable.
Starship sits at the centre of Musk’s longer-term ambitions around lunar missions, Mars colonisation, rapid satellite deployment and potentially even orbital computing infrastructure. A successful test campaign would likely strengthen confidence in some of the futuristic scenarios underpinning the IPO narrative.
The company has repeatedly emphasised its tolerance for rapid iteration and test failures, but public market investors may prove less forgiving once quarterly reporting pressures begin.
A different kind of tech float
In many ways, the SpaceX filing represents a turning point for markets already struggling to separate practical AI economics from long-duration technological speculation.
The company is simultaneously pitching itself as a satellite operator, launch provider, telecommunications platform, AI infrastructure company, energy manufacturer and future space-economy leader.
That breadth helps explain why the IPO is attracting such extraordinary attention — but also why valuing it may become one of Wall Street’s most difficult exercises in years.
If the listing proceeds at the upper end of expectations, SpaceX would immediately become one of the world’s most valuable listed companies despite still posting substantial losses and spending heavily across multiple emerging businesses.