SpaceX Could Trigger Massive Wave of Mega IPOs Worth Nearly $3 Trillion

The IPO Drought Could Soon End

Wall Street stands at the brink of what could become the most dramatic shift in public market activity since the dot-com boom. The floodgates could be poised to burst open on Wall Street for $2.9 trillion worth of private companies that have avoided going public for years. SpaceX plans to raise about $30 billion via an initial public offering in 2026, valuing the company at almost $1.5 trillion , setting the stage for what would shatter all previous IPO records.

IPOs have been more or less stuck in a rut since a record $492 billion year in 2021, and companies like SpaceX, Stripe and ByteDance that once would have been candidates for listings have attracted valuations in private funding rounds that leave most public companies in the dust . These so-called "centicorns" - companies valued at $100 billion or more - have grown comfortable in the private sphere, avoiding the quarterly reporting requirements and public scrutiny that come with being publicly traded.

The wailing of investors denied access to the hottest big companies was just about drowned out by investment bankers bemoaning the chunky IPO fees they've been missing out on. That frustration may soon end, as SpaceX's potential public debut could trigger a domino effect across Silicon Valley's most valuable startups.

Record-Breaking Numbers That Dwarf Everything Before

The scale of SpaceX's planned offering defies conventional market wisdom. If SpaceX offered 5% of the company at a $1.5 trillion valuation, it would have to sell $75 billion of stock, easily making it the biggest IPO of all time. If carried out on that scale, the listing would become the biggest in history, edging past Saudi Aramco's $29 billion coming-out party and making SpaceX one of the most valuable public companies on Earth overnight.

To put this in perspective, "The median market cap of an S&P 500 company is close to $40 billion; this is a completely different stratosphere," said Paul Abrahimzadeh, a partner at 1789 Capital and a former co-head of equity capital markets for North America at Citigroup Inc. SpaceX is expected to produce about $15 billion in revenue in 2025, increasing to between $22 billion and $24 billion in 2026 , giving investors concrete numbers to evaluate against its massive proposed valuation.

A Bloomberg report says that SpaceX in recent days "confirmed" this sale of shares among employees, with the valuation exceeding $800 million, and employees could sell about $2 billion worth of shares at $420 per share. This employee stock sale demonstrates growing momentum toward the eventual public offering.

Governance Concerns and Market Skepticism

Despite the excitement, serious questions linger about whether public markets are ready for companies of this magnitude and complexity. "The challenge I would have with SpaceX is not just the math, but from an investor perspective governance would be a concern," Erickson said. "Elon Musk could be a CEO of two huge public companies and then he's got xAI, I would think people would be concerned about things like that."

While state-backed Saudi Aramco raised $29 billion in a listing in 2019 in favorable conditions — debuting in its home market and with no international offering — some question whether a company with a relatively short track record, and led by a figure like Musk, who already runs a $1.5 trillion dollar company, would have a similarly warm reception.

Valuation skeptics raise fundamental questions about whether the numbers add up. "But I'd be suspect if OpenAI or SpaceX are really worth $1 trillion or $800 billion just based on what I understand their revenues are and what their growth rates are," said David Erickson, an adjunct associate professor of business at Columbia Business School .

The Floodgates Effect

If SpaceX successfully navigates its public debut, the ripple effects could reshape Wall Street permanently. "So this is going to kick off a massive trend of IPO activity — yes, we've been saying that for years — but there are no more excuses in 2026." A lot of these companies are too big to be sold, said 1789's Abrahimzadeh, whose firm is an investor in SpaceX.

A SpaceX listing as soon as mid-2026 could resolve the disconnect between public and private markets in a flood of mega-deals that some investors can't afford to miss. The success or failure of this unprecedented offering will likely determine whether other mega-valued private companies follow suit or continue to avoid public markets altogether. For investors who have been locked out of the most exciting growth stories of the past decade, SpaceX's IPO represents both an enormous opportunity and a test of whether public markets can handle the new generation of technology giants.