SpaceX Is Public. The $1.77 Trillion Question Is xAI.

SpaceX hits Nasdaq carrying 24 years of private company data and one very expensive AI subsidiary

SpaceX priced its IPO at $135 per share on June 11, opened trading on Nasdaq under the ticker SPCX on June 12, and raised $75 billion in a single offering, a figure that surpasses the previous record held by Saudi Aramco since 2019. At that price, SpaceX's valuation sits at $1.77 trillion, placing it among the ten largest listed companies on Earth.

For Elon Musk, who retains over 82% voting control after the offering, the timing follows a February 2026 merger that combined SpaceX, xAI, and X into a single entity. The combined company filed its S-1 with the SEC on May 20. What that document reveals is a business with one profitable engine, one AI-shaped crater, and a valuation that requires believing the crater will eventually produce the most consequential returns in technology history.

Starlink is the only business making money, and its growth ceiling is visible

Starlink crossed 10 million subscribers by early 2026 and generated $11.4 billion in revenue last year, more than 60% of SpaceX's total. It is the only segment consistently generating operating profit. In a direct comparison, Starlink's subscriber growth in its first decade outpaced DirecTV's breakout years in the 1990s by nearly every metric.

But the S-1 also reveals structural pressure building on that number. Average revenue per user fell from roughly $99 per month in 2023 to approximately $66 by early 2026, an 18% drop driven by expansion into lower-income geographies and more competitive pricing in core markets. Quilty Space analysts estimate Starlink will reach around 17 million subscribers by the end of 2026. Beyond that, the physics of low-Earth orbit impose a hard constraint: without Starship driving down the cost of the next generation of satellites, analysts at Eurospace estimate the constellation can profitably serve no more than 25 to 30 million households.

What investors are actually buying when they buy SPCX

The $26.5 trillion AI figure in the S-1 represents 93% of SpaceX's stated total addressable market. Space and connectivity, the businesses generating revenue today, account for the other 7%. That ratio tells you what the valuation is built on.

xAI generated $3.2 billion in revenue in 2025 but posted a $6.4 billion operating loss. In Q1 2026 alone, the AI segment burned $2.5 billion. The accumulated deficit for the combined company stands at $41.3 billion as of March 2026. Novaspace analyst Nathan de Ruiter, speaking to Via Satellite ahead of the IPO, put the tension plainly: "The most surprising element is how strongly the IPO is framed as an AI story, even though it is being presented under the SpaceX umbrella." Pravin Pradeep of Frost & Sullivan was more direct: "It's an AI valuation wearing a rocket suit."

Morningstar's discounted cash flow analysis values SpaceX at approximately $780 billion, less than half the IPO price. That figure reflects the space and connectivity businesses at reasonable growth assumptions. It does not price in the AI upside, because that upside is not yet demonstrable at scale in the company's own financial statements.

SpaceX is now the only publicly traded frontier AI company, and that changes the competitive landscape

This is the detail most coverage is passing over. With SpaceX's listing, xAI, which operates Grok and the Colossus supercomputer in Memphis, becomes a publicly traded frontier AI lab. OpenAI and Anthropic remain private. Google and Microsoft operate AI as divisions of much larger companies. SpaceX is now the only public market vehicle that gives investors direct equity exposure to a company competing at the frontier of model development.

That structure has a second-order effect. A publicly traded xAI means quarterly earnings calls, disclosed compute spend, and revenue figures that will be directly compared to Anthropic and OpenAI. The informal consensus about AI lab performance, shaped almost entirely by fundraising rounds and benchmark releases, now has a new reference point: actual public financials from a competitor. Every valuation assumption the private labs carry into their own IPO processes will be stress-tested against SPCX's trading price.

Starlink makes SpaceX the most important connectivity infrastructure company on Earth. Starship, if it scales, could make it the most important launch company in history. But investors paying $1.77 trillion today are pricing a version of xAI that doesn't yet exist in its P&L. The gap between that version and the one in the S-1 is where the real risk in SPCX lives.