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SpaceX Swallows xAI in the Largest Merger on Record

Elon Musk folded his AI startup into SpaceX at a reported $1.25 trillion combined value, setting up a mega-IPO and a bet on space-based data centers.

FinanceFeb 2, 20264 min read2 diagrams

Key takeaways

  • SpaceX acquired xAI at reported valuations of $1 trillion and $250 billion, topping Vodafone-Mannesmann's $203 billion record.
  • xAI holders were reported to receive 0.1433 SpaceX shares for each xAI share.
  • The combination sets up a SpaceX IPO this year that could value the company above $1.5 trillion.

On February 2, Elon Musk announced that SpaceX had acquired xAI, the maker of the Grok chatbot. Reuters, citing a person familiar with the matter, reported the deal values SpaceX at $1 trillion and xAI at $250 billion, which would make it the biggest merger in history and fold two of Musk's most capital-hungry ventures into a single balance sheet.

The deal in numbers

The transaction pegs xAI at $250 billion. That edges past the record that has stood since 2000, when Vodafone bought Germany's Mannesmann for $203 billion, according to LSEG data cited by Reuters. Prior marks were lower than the new ones: SpaceX had been valued at roughly $800 billion in a recent insider share sale, while xAI was valued at $230 billion in a November round. The merger therefore lifted both sides, and the South China Morning Post put the combined business at $1.25 trillion.

Reports described a stock swap in which xAI shareholders get 0.1433 shares of SpaceX per xAI share, with the combined company pricing shares at around $527 each. Those terms come from secondary reports, so treat the details as provisional until filings confirm them.

Bar chart comparing the Vodafone-Mannesmann record deal of 203 billion dollars to the xAI valuation of 250 billion and SpaceX at 1 trillion Reported values, $ billions Vodafone-Mannesmann (2000) xAI in the deal SpaceX in the deal 203 250 1,000 All bars on one scale: 0.46 px per $1 billion.
Valuations are single-source Reuters figures; Vodafone figure from LSEG data. Source: Reuters via The Star.

Why combine a rocket company with an AI lab

The logic is partly financial and partly strategic. Training frontier models burns cash at a pace few private companies can sustain, while SpaceX's Starlink and launch businesses generate revenue and access to deep capital markets. Putting xAI inside SpaceX gives the lab a parent with cash flows, and gives SpaceX a story about artificial intelligence ahead of what is expected to be a record listing.

Musk framed the pairing around ambitions that sound extravagant: building data centers in orbit, where solar power is abundant and cooling is a different problem than on Earth. Whether that can compete with ground-based facilities is untested, and the SCMP framed the merger as a bid to build space data centers. For now the practical benefit is simpler. The shared balance sheet spreads the costs of GPUs, power and launch capacity across one company.

Before and after diagram showing SpaceX and xAI as separate companies merging into one entity ahead of an IPO SpaceXlaunch, Starlink xAIGrok, model training Combined SpaceX~$1.25T reported IPO planned2026, $1.5T+? Share swap reported at 0.1433 SpaceX shares per xAI share.
Structure as reported; IPO valuation is a reported target, not a result. Illustrative.

The risks

SpaceX holds billions of dollars in federal contracts with NASA, the Defense Department and intelligence agencies, so regulators may look closely at the combination for national-security concerns. Governance is also a question: public-market investors will be buying into a company whose fortunes now hinge on both launch economics and the brutally competitive AI-model race. A weak quarter at either unit lands on the same income statement.

There is also precedent risk. A $250 billion deal arriving in the same year that mega AI labs plan listings makes private-market marks suddenly very visible. If SpaceX prices its IPO well, it validates the valuations floating around the industry; if it stumbles, it hits sentiment toward every large unlisted AI company.

A record that resets the scale

The size of the deal says as much about the current market as about the companies. Four years ago, a $250 billion acquisition of a startup that did not exist before 2023 would have been laughable. Now it is justified by private valuations that have been marked up round after round, with xAI worth $230 billion in November and $250 billion only a couple of months later. The deal effectively converts those private marks into liquid-style equity in a larger company.

For SpaceX's existing investors, the swap dilutes ownership but exchanges it for exposure to an AI business that could be worth a lot more or a lot less than the headline. The IPO that follows will be the test of whether public investors agree with the figure at which the two were combined, and whether they accept a combined company that mixes rockets, satellites and chatbots under one ticker.

What to watch

  • SEC filings that confirm the exchange ratio and the combined share price.
  • Any government review tied to defense and intelligence contracts.
  • The timing and pricing of the planned SpaceX IPO.
  • Early evidence that orbital data centers are more than a pitch.

Sources

  1. SpaceX acquires xAI in record-setting deal as Musk looks to unify AI and space ambitions — Reuters (via The Star)
  2. SpaceX acquires xAI in record-setting deal valued at over $1T — Fox Business
  3. Elon Musk merges xAI into SpaceX in record-setting deal — South China Morning Post

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