SpaceX is going public, and its prospectus tells a story most investors did not expect.
The headlines are about rockets and AI, but the numbers in the filing are mostly about satellite internet.
In the first quarter of this year, Starlink made up 69% of SpaceX's total sales after carrying 61% of revenue for all of last year.
It was also the only unit making money, with Starlink generating $4.42 billion in income while the rocket-launching business lost $657 million and the new AI division (created after the xAI merger) lost $6.35 billion on its own.
That split is what makes the IPO so unusual, since the piece of the company that gets the least attention is paying for the pieces investors are most excited about.
SpaceX spent $10.1 billion on capital expenses in the first quarter alone, more than double the year before, with about $7.7 billion of that going straight to AI buildouts.
Starlink is the engine funding the whole thing.
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Starlink now runs more than 10,200 satellites in low Earth orbit, serves customers in over 160 countries, and added more than 5 million users in the past year as its base climbed to 10.3 million.
The brand cracked Brand Finance's top 500 ranking for the first time in 2026, valued at $5.19 billion - which means satellite plays are no longer a niche corner of the market.
But Starlink is being chased by some of the biggest names in tech, with Amazon launching more than 300 satellites for its Leo service and planning to eventually run a constellation of roughly 7,700.
Jeff Bezos' Blue Origin plans to deploy about 5,400 satellites starting in late 2027, while China's Guowang already has around 163 satellites in orbit and has much bigger plans.
SpaceX named more than 20 competitors in the filing, including Amazon, Blue Origin, Viasat, AT&T, and T-Mobile.
Then there are the regulators, with Namibia denying Starlink an operating license in March and Taiwan ruling it out because SpaceX would not partner with a local company.
The IPO will be sold on rockets, Mars ambitions, and AI promises, but the underlying reality is that Starlink is carrying the financials.
Three things matter from here: whether Starlink can stay ahead of Amazon and Blue Origin as more satellites go up, whether more regulators follow Namibia and Taiwan, and whether the AI division ever turns into a real business instead of a $6 billion drain.
This filing made Starlink the most important satellite internet company on Earth, while the pitch around it is about everything else.
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