TL;DR: SpaceX priced its IPO at $135 per share on June 12, 2026, raising $75 billion — the largest public offering in history — at a $1.77 trillion valuation. The debut comes after the company’s merger with Elon Musk’s xAI, folding Grok models and an orbital compute roadmap into a single publicly traded entity. Shares opened at $148 and CNBC reported the stock up 6% in premarket trading on June 15, pushing the valuation toward the $2 trillion threshold. For the AI agent economy, SpaceX’s debut is less about rockets and more about infrastructure: Starlink as the edge inference backbone, orbital AI data centers as the next compute frontier, and Grok models now directly tied to a public company with a balance sheet that can fund the AI buildout.
The Numbers
SpaceX’s IPO raised $75 billion, surpassing Saudi Aramco’s $29.4 billion 2019 listing and Alibaba’s $25 billion 2014 offering by a wide margin. At $135 per share, the company debuted at a $1.77 trillion market capitalization — making it the second most valuable publicly traded company in the world, trailing only Apple.
The offering sold approximately 556 million shares, representing roughly 4.2% of the company. The relatively small float — a deliberate choice to maintain tight supply — contributed to the immediate pop: shares opened at $148, a 9.6% first-day gain, and continued climbing in subsequent sessions. By June 15, premarket trading showed the stock up another 6%, bringing the valuation close to $1.9 trillion.
The merged entity combines SpaceX’s launch business (Falcon, Starship, and Dragon), the Starlink satellite internet network with over 4 million subscribers and an estimated $12 billion in annual revenue, and xAI’s Grok model family and AI research division. The xAI merger, completed in the months before the IPO, is the centerpiece of the offering’s narrative: investors aren’t buying a rocket company. They’re buying the only vertically integrated AI infrastructure platform that spans chips, launch, orbit, and models.
From ‘10% Chance’ to $2 Trillion
Elon Musk’s own framing of SpaceX’s trajectory provides the IPO’s most vivid narrative arc. In a 2008 interview, Musk famously estimated SpaceX had perhaps a 10% chance of reaching orbit, let alone becoming a viable business. Eighteen years and three consecutive Falcon 1 failures later, the company that was once weeks from bankruptcy has become the second most valuable public company on Earth.
Musk rang the opening bell remotely from Starbase in Boca Chica, Texas, with Starship — the fully reusable rocket that underpins the orbital compute thesis — visible in the background. In a brief statement, he called the IPO “the beginning of making humanity a multi-planetary species, funded by the public markets.” The multi-planetary rhetoric has been a constant. What’s new is the AI infrastructure layer underneath it.
What Changes for the AI Agent Economy
SpaceX-as-public-company reshapes the AI infrastructure landscape in ways that matter directly to agent builders.
Starlink becomes an edge inference backbone. With xAI’s Grok models now inside SpaceX, the path to running inference workloads directly on Starlink’s satellite mesh — rather than routing every request back to a terrestrial data center — becomes a product roadmap rather than a speculative slide deck. For real-time AI agents operating in bandwidth-constrained or latency-sensitive environments, edge inference on orbit changes the deployment topology.
Orbital compute gets a public balance sheet. The orbital AI data center plans we covered earlier this week — a potential million-satellite constellation carrying AI inference hardware — were always going to require tens or hundreds of billions in capital. The IPO provides exactly that, and the public listing gives SpaceX a currency (its own stock) to fund the buildout through secondary offerings and debt. The terrestrial GPU deals with Google and Anthropic, worth a combined $2.1 billion per month, proved the demand exists. Now SpaceX has the capital to build the supply.
Grok becomes a public-company model. xAI’s Grok models — which had been training on X/Twitter data and competing with OpenAI, Anthropic, and Google in the frontier model race — now sit inside a company with an infrastructure moat no other AI lab can match. OpenAI and Anthropic rent compute. SpaceX builds rockets, launches satellites, and generates its own power in orbit. If the AI race is ultimately a compute race, the structural cost advantages of vertical integration are hard to dismiss.
The Bigger Picture: $2 Trillion in AI IPOs
SpaceX’s debut lands in the middle of the most concentrated wave of AI-related public offerings in history. Anthropic filed its S-1 on June 1, targeting a $965 billion valuation. OpenAI followed on June 8 with a confidential filing targeting up to $1 trillion. Combined, the three IPOs represent roughly $3.7 trillion in market value — more than the entire market capitalization of the FTSE 100.
SpaceX is the first of the three to actually price and begin trading, which means its aftermarket performance sets the tone for the offerings that follow. The stock’s upward trajectory in its first three sessions — up 6% in premarket on day three — suggests the market is willing to price AI infrastructure not on current earnings but on the scale of the buildout ahead. That’s good news for Anthropic and OpenAI. It’s also a signal that the public markets have accepted the premise that AI compute is the defining infrastructure investment of the decade, and that the companies best positioned to supply it are worth multiples of what any pre-2024 analyst would have dared to model.
SpaceX went public as a rocket company that happens to be the most interesting AI infrastructure play on the market. The market is pricing it accordingly.
FAQ
Q: What does SpaceX’s IPO mean for the Starlink AI thesis? A: It converts a speculative roadmap into a product plan with public balance-sheet backing. Running Grok inference on Starlink’s satellite mesh, rather than routing to terrestrial data centers, requires capital the IPO provides.
Q: How does SpaceX’s $1.77T valuation compare to other tech IPOs? A: It’s the largest in history. Saudi Aramco’s 2019 listing raised $29.4B at a $1.7T valuation; SpaceX surpassed both numbers ($75B raised, $1.77T). Alibaba’s $25B IPO in 2014 was the previous tech record.
Q: Is SpaceX a rocket company or an AI company now? A: Both. The xAI merger folds Grok models into SpaceX’s infrastructure. The market is valuing it as a vertically integrated AI infrastructure platform — chips, launch, orbit, and models under one ticker.
Q: Will the orbital AI data center plans actually happen? A: The terrestrial GPU deals with Google and Anthropic ($2.1B/month combined) prove demand. The IPO provides the capital. Whether the orbital deployment scales to millions of satellites is an execution question, not a funding one.
Further Reading
- The Agent Report — SpaceX Orbital AI Data Centers — The million-satellite AI compute plan
- The Agent Report — The $3.7 Trillion AI IPO Wave — Anthropic, OpenAI, and SpaceX all going public
- The Agent Report — Anthropic Files S-1 — The first trillion-dollar AI lab filing
- The Agent Report — OpenAI Files Confidential S-1 — $25B revenue, $14B losses, $1T target
— The Agent Report