SpaceX Files for Historic IPO: Here's What We Learned

SpaceX has formally begun what could be the largest market debut on record by filing a Form S-1 prospectus with the U.S. Securities and Exchange Commission.

The 308-page filing sets up a roadshow expected to start in June, with a likely listing on the Nasdaq under the ticker SPCX before summer ends. Early institutional models point to a valuation well above $1 trillion, with more bullish banking targets nearing $2 trillion.

The document lays out SpaceX’s financial profile, vast addressable markets, and the extent of connections to Elon Musk’s other ventures. It also showcases new photography from the company.

Strong Financials and an AI Surprise

In Q1 2026, SpaceX reported $4.7 billion in revenue and a net loss of $4.3 billion, driven by $10.1 billion in capital expenditures during the quarter.

Of that quarterly spend, $7.7 billion went to advanced artificial intelligence infrastructure. Earlier this year, Elon Musk merged xAI into SpaceX, where it will operate as a standalone SpaceXAI subdivision with its advanced research headquarters in Palo Alto, California.

The filing notes significant enterprise demand for compute: Anthropic has agreed to pay SpaceX $1.25 billion per month through May 2029 for AI compute capacity. Musk posted on X: 22As the recently expanded partnership with AnthropicAI demonstrates, SpaceX is offering AI compute as a service at significant scale. We are in discussions with other companies to do the same. Over time, especially with orbital data centers, we expect to serve AI at extremely high scale.22

As the recently expanded partnership with @AnthropicAI demonstrates, @SpaceX is offering AI compute as a service at significant scale.

We are in discussions with other companies to do the same.

Over time, especially with orbital data centers, we expect to serve AI at extremely high scale.

— Elon Musk (@elonmusk) May 20, 2026

The compute platform is supported by a 1-gigawatt data center cluster and already serves 117 million monthly active users who use Grok’s integrated AI features on X. SpaceX has also secured options to acquire coding tools like Cursor for $60 billion and is collaborating with Tesla on the Intel-backed TERAFAB chip manufacturing project.

Starlink Dominance and Future Markets

Connectivity-driven primarily by Starlink-remains the company’s core financial engine. The low-Earth orbit network has reached 10.3 million active paid subscribers across 164 countries and generated $1.18 billion in operating income in Q1 2026.

Adoption is accelerating in aviation as well. On United Airlines, 344 aircraft are active with Starlink hardware, enabling 3.7 million devices to connect across 167,000 flights. The filing states that an average aircraft installation takes 8 hours, around ten times faster than legacy providers.

Looking ahead, the company describes the largest actionable total addressable market in human history, estimated at $28.5 trillion outside of Russia and China. Alongside long-distance, point-to-point terrestrial Starship flights on Earth, the filing lists Future Markets including space tourism, in-orbit manufacturing, cargo delivery to the Moon, and asteroid mining. The document also confirms holdings of 18,712 Bitcoins, valued at over $1.45 billion.

IPO Structure and the Tesla Connection

Underwriters led by Goldman Sachs and Morgan Stanley structured a staggered lock-up for insiders instead of a standard six-month restriction. Portions of eligible insider shares will unlock after Q2 and Q3 2026 earnings, with additional tiers if the stock trades 30% above the IPO price. Elon Musk’s personal shares are excluded from early releases, keeping his 85.1% voting control firmly in place.

As of May 1, 2026, Tesla holds 18,990,195 Class A common shares of SpaceX following the xAI acquisition, a detail that has fueled ongoing speculation about a potential future corporate merger.

SpaceX also confirmed that retail investors will be able to purchase shares through brokerages such as Robinhood, Fidelity, and Charles Schwab at the same time and price as institutions. The announcement comes as the launch team prepares for the first Starship V3 launch later today.