SpaceX filed its confidential S-1 with the U.S. Securities and Exchange Commission on April 1, 2026, setting in motion what multiple outlets are now calling the largest initial public offering in history.

The public version of the filing is expected to become available in late April or early May, according to Bloomberg and Reuters. That document will be the first time the company's full financials are disclosed publicly.

Four banks are leading the offering: Goldman Sachs, JPMorgan Chase, Morgan Stanley, and Bank of America. The company's analyst day — the formal presentation to sell-side analysts and institutional investors — is scheduled for April 21.

A Raise That Could Rewrite the Record Books

SpaceX is reportedly targeting a capital raise of $40 billion to $75 billion, with recent testing-the-waters conversations pushing toward the upper end. The current record holder — Saudi Aramco's 2019 listing — raised $29.4 billion.

If SpaceX hits the top of its range, the offering would be more than 2.5× larger than any IPO in history.

The target valuation has also moved. The February 2026 merger with xAI valued the combined company at $1.25 trillion. Recent reports put the IPO valuation in the $1.75 trillion to $2 trillion range, with some sources citing higher numbers in pre-marketing conversations.

What the Full S-1 Is Expected to Reveal

The public S-1 will include:

  • Audited financial statements for SpaceX's fiscal year
  • Segment breakdowns — launch services, Starlink, Starshield (defense), and the newly-disclosed orbital data center initiative
  • Risk factors — the full list of business and market risks the company is disclosing
  • Use of proceeds — exactly what SpaceX plans to do with the capital raised
  • Share structure and insider ownership — including Elon Musk's stake and any dual-class voting arrangements

Analysts are split on what those numbers will look like. Some argue the $1.75T–$2T valuation already prices in aggressive growth assumptions across Starlink and the emerging orbital compute segment. Others point to the company's 134 orbital launches last year — more than every other nation combined — as evidence that the dominance is still accelerating.

The xAI Merger Matters More Than Most Investors Realize

In February 2026, SpaceX absorbed Elon Musk's artificial intelligence company xAI at a combined $1.25 trillion valuation. xAI had just closed a $20 billion Series E at a $230 billion valuation the month prior.

The merger was widely reported as a mechanism to shore up xAI's balance sheet ahead of the listing. But it also reshaped the business model of the combined company.

Weeks after the merger, the Federal Communications Commission approved SpaceX's application to deploy orbital data centers — satellites configured to run artificial intelligence workloads in space, powered by solar energy and passively cooled by the vacuum of orbit.

Some analysts, including former Qualcomm executive Jeff Brown — who flagged Nvidia before its AI breakout in 2016 and wrote about Tesla before its trillion-dollar run — argue this repositioning is the most underappreciated part of the IPO story. In his free briefing, Brown walks through why he believes Wall Street is still pricing SpaceX as a launch provider when the real business is AI infrastructure. His full analysis is here.

What to Watch Between Now and the Listing

The key dates:

  • Late April / Early May — full S-1 becomes public
  • April 21 — SpaceX analyst day
  • Summer 2026 — expected listing date (no specific day announced)

After the analyst day, underwriting banks' research teams will begin building coverage models. Consensus valuation typically anchors at that point — often before the public S-1 is even fully digested.

For investors watching the sector, other names in the orbital launch and AI infrastructure supply chain have already been moving on IPO anticipation. Individual-stock commentary will need to wait for the actual S-1 disclosures rather than relying on speculation.

Bottom Line

The filing itself is routine. What makes it newsworthy is the scale: potentially $75 billion in capital raised, a $2 trillion valuation ceiling, and an AI infrastructure thesis tucked inside what most coverage still describes as a rocket company.

The next two to three weeks will tell most of the story.

Sources: Bloomberg, Reuters, CNBC, The Motley Fool, FCC filings, SEC EDGAR.