SpaceX Files Public S-1 for History's Largest IPO at $1.75 Trillion Valuation

SpaceX’s public S-1 registration statement hit the SEC’s EDGAR system this week, officially triggering what could be the largest initial public offering in stock market history. Targeting a $1.75 trillion valuation and an eye-popping $75 billion capital raise, the filing marks a pivotal moment not just for SpaceX but for the entire ecosystem of private technology companies that have delayed public debuts while building genuine infrastructure-scale businesses.

At its target valuation, a June listing on Nasdaq under the ticker SPCX would eclipse the record set by Saudi Aramco’s $1.7 trillion IPO in 2019—the last time a company commanded this kind of number from public markets.

Starlink Is the Engine

The S-1 makes clear that Starlink, SpaceX’s satellite internet division, is no longer an experimental side project—it is the company’s dominant revenue engine and the primary thesis for the entire offering. Starlink ended 2025 with approximately $11.4 billion in revenue, up 50% year-over-year, and crossed 10 million subscribers in February 2026, doubling its base in under 12 months. As of late April, the constellation encompassed nearly 10,300 active satellites in low Earth orbit, forming the largest commercial satellite network ever deployed.

The financial profile is striking. Starlink generated an EBITDA margin as high as 63% in 2025—margins that rival the best software businesses anywhere in the economy. Analysts at Quilty Space project Starlink alone will produce $20 billion in revenue and $14 billion in EBITDA for full-year 2026, with free cash flow of roughly $8.1 billion. The implication is that Starlink, on a standalone basis, would already qualify as one of the most profitable infrastructure companies in the world.

For SpaceX overall, 2025 total revenue came in between $15 billion and $16 billion, with group EBITDA of approximately $8 billion. The company’s capital efficiency is remarkable for a business that builds and launches rockets for a living.

Launch Services: An 82% Market Share Moat

Beyond Starlink, SpaceX’s launch services division controls an estimated 82% of global commercial payload launch market share—a position that has only hardened as competitors struggled to match the cost economics of Falcon 9’s reusable first stage. The company has executed over 200 launches annually since 2024, with Falcon 9 sustaining one of the most reliable track records in spaceflight history, including more than 300 consecutive successful missions without a loss.

Starship, the super-heavy lift vehicle still in iterative testing, represents the company’s decade-long ambition: point-to-point Earth travel, lunar logistics for NASA’s Artemis program, and eventually Mars. While Starship does not yet contribute meaningfully to revenue, full orbital point-to-point demonstration flights were completed in early 2026, and the rocket has secured contracts with NASA and several sovereign clients. Investors are being asked to price in the optionality.

The xAI Integration: A $4.94 Billion Complication

The S-1 must also account for one of the most unusual corporate integrations in recent memory: SpaceX’s February 2026 all-stock acquisition of Elon Musk’s AI company xAI, which carried a $250 billion valuation at the time of the deal. Combined with SpaceX’s pre-merger $1 trillion private valuation, the transaction created a $1.25 trillion entity now seeking to list at $1.75 trillion—implying roughly $500 billion of incremental value from synergies, growth trajectory, and market premium.

The filing discloses a $4.94 billion accounting loss attributed to the xAI merger, driven primarily by goodwill write-downs and integration costs—an eye-catching number that bears will likely fixate on during the roadshow.

The strategic logic, however, is hard to dismiss. xAI’s Grok AI models are being embedded in Starlink terminals, autonomous flight systems, and internal engineering tooling. More concretely, xAI’s Colossus 1 data center—the 300-megawatt Memphis facility xAI built in 2024—is now being leased to Anthropic in a deal announced in May 2026 that is expected to generate billions in annual infrastructure revenue. The data center that was sitting at approximately 11% utilization for Grok model training has been transformed into a lucrative third-party compute facility almost overnight.

Governance: Musk Maintains Iron Control

One aspect of the filing that is already generating debate among institutional investors is its governance structure. Musk controls approximately 79% of shareholder votes while holding only around 42% of the equity, via a dual-class share structure. The arrangement is not unprecedented—Meta, Alphabet, and Snap all employ similar mechanisms—but the magnitude of Musk’s control is exceptional. Shareholders buying into the IPO will have limited ability to influence company direction regardless of how large a stake they accumulate.

The filing also includes an unusually generous retail allocation: up to 30% of shares are expected to be offered to individual investors, roughly three times the typical norm for a large offering. The move appears designed to generate grassroots enthusiasm and broaden the investor base among Musk’s substantial personal following—a demographic that has historically shown loyalty to his companies. Critics have called it a savvy but cynical distribution strategy; supporters argue it democratizes access to a generational asset.

The $75 Billion Capital Plan

If the raise proceeds as planned, it will generate nearly four times the capital of the previous record U.S. tech IPO. The underwriting syndicate—Bank of America, Citigroup, Goldman Sachs, JPMorgan, and Morgan Stanley—represents essentially every major Wall Street bank, a lineup that signals institutional seriousness about the offering.

Proceeds are expected to fund an aggressive Starlink expansion, accelerating toward a 15,000-satellite constellation, extending coverage to aviation and maritime markets, and deepening penetration in emerging economies where terrestrial broadband infrastructure remains patchy or nonexistent. A portion will also fund continued Starship development and, contingent on contract flow, early infrastructure for lunar logistics operations.

Bears, Bulls, and What Comes Next

The investment case is not without complication. Musk’s regulatory entanglements—ongoing government contracts combined with his provocative public persona—feature prominently in the S-1’s risk factors. The xAI write-down will require careful framing to institutional allocators. And at $1.75 trillion, SpaceX would be priced more richly than Apple on a revenue multiple, demanding continued extraordinary execution.

The bull case is equally clear: SpaceX holds near-monopoly positions in both satellite broadband and commercial launch, is generating infrastructure-grade cash flows, and has embedded an AI division whose data center assets are generating immediate third-party revenue. A handful of analysts have compared its competitive moat to early Amazon Web Services—a business that looked expensive at every price until it didn’t.

The roadshow is expected to begin the week of June 8. By mid-June, public markets will deliver their verdict on one of the most anticipated listings in a generation.