SpaceX IPO Explained: Elon Musk’s $1.75 Trillion Bet, xAI Risks & Trillionaire Math

Sixty-two years ago, NASA spent roughly $25 billion (in today's dollars) putting humans on the Moon. On May 20, 2026, Elon Musk filed paperwork to take one company public at $1.75 trillion, seventy times that cost, under a single stock ticker. 

SpaceX's IPO isn't just the biggest in history. It's the first time a public market has been asked to price a rocket company, a satellite internet empire, an AI lab, and a social network; all controlled by one person, all wrapped inside one filing.

Let's break down what SpaceX actually earns, what the xAI merger is costing, how the numbers stack up against global benchmarks, and whether the valuation is a genuinely defensible thesis or the most expensive leap of faith in financial history.

The Scale Of The SpaceX IPO

To feel the size of $1.75 trillion, consider this: Reliance Industries, India's largest and most powerful conglomerate, carries a market cap of roughly $190 billion as of May 2026. SpaceX's target IPO valuation is 9.2 times that. If SpaceX gets listed at the target valuation of $1.75 trillion, it will surpass Tesla at $1.57 trillion valuation to become the 9th largest company in the world by MarketCap as of May 21st, 2026.

The $75-80 billion fundraise alone would eclipse Saudi Aramco's 2019 record by nearly three times. The ticker will be SPCX on Nasdaq, with pricing expected on June 11 and first trading around June 12, 2026. Goldman Sachs, Morgan Stanley, BofA, Citi, and J.P. Morgan are joint book-running managers for SpaceX; essentially every major Wall Street firm has a seat at this table.

What SpaceX Actually Earns: Three Companies, One Price Tag

Here's the part that’s very important to understand: SpaceX is not one business. It's three, and they all perform very differently.

Starlink is the machine. As of Q1 2026, it has 10.3 million subscribers across 164 countries, generates $3.26 billion a quarter in revenue, and throws off $1.19 billion in operating profit every three months. Think of it like a Jio, but global, satellite-powered, and with no competition at scale. This is the asset that justifies talking about SpaceX in trillion-dollar terms.

The Space segment (rockets, NASA contracts) is a necessary cost center. SpaceX poured $3 billion into Starship R&D in 2025 alone. Falcon 9 makes money. Starship development burns it. The bet is that Starship eventually brings launch costs below $100 per kilogram to orbit, at which point the economics of everything from cargo to satellites to Mars missions reshapes entirely.

The AI segment is the problem. And it needs to be understood clearly before anyone decides to invest in SpaceX.

The xAI Drag: What Elon Musk's AI Ambition Is Costing Right Now

In February 2026, SpaceX absorbed xAI, the company behind Grok and X (formerly Twitter), in an all-stock deal. At the time, SpaceX was valued at $1 trillion and xAI at $250 billion. The combined entity became the world's most valuable private company overnight.

But here's what the accounting actually shows:

Before xAI, sources familiar with SpaceX's pre-merger financials indicated the legacy rocket-and-satellite business was generating roughly $8 billion in annual profit. After consolidating xAI, that profitable company now reports a $4.9 billion net loss.

Think of it like buying a high-yielding FD and then someone bundles it with a startup that's burning ₹20,000 crore a quarter, suing regulators, and still figuring out its product. You don't get the FD separately anymore. You get the whole package.

The company's capital expenditure jumped nearly fivefold in one year, from $5.6 billion in 2024 to $20.7 billion in 2025, with $12.7 billion directed at AI infrastructure alone. Musk's stated ambition is to launch 100 gigawatts of AI computing capacity into space per year. That vision is compelling. It is also, at this point, entirely unproven hardware that hasn't cleared a single regulatory review.

Elon Musk Net Worth Question. The Trillionaire Math

This IPO has one number driving every other conversation: when does Elon Musk become the world's first trillionaire?

According to Polymarket, as of early 2026 the odds of Musk becoming a trillionaire before 2027 stood at 72%. The math is straightforward: at a $1.75 trillion IPO valuation, his ~42% equity stake alone is worth approximately $735 billion. Add his Tesla holdings and he crosses the trillion-dollar mark.

What makes this governance story equally important: Musk holds 85.1% of voting power through Class B shares (10 votes each vs. Class A's 1 vote). The public IPO shares are Class A. As the filing states plainly, "Mr. Musk will have the power to control the outcome of matters requiring shareholder approval, including election of all our directors."

He was also granted 1 billion performance-based Class B shares in January 2026. The vesting condition? SpaceX must establish a permanent human colony on Mars with at least one million inhabitants. That isn't a bonus plan. That's a mission statement written into equity.

Is The SpaceX Valuation Defensible? The Analyst's Take

At $1.75 trillion against $18.7 billion in 2025 revenue, SpaceX is asking investors to pay roughly 95x trailing revenue. There is no direct comparable in public markets.

ARK Invest, one of SpaceX's most vocal bulls, argues that the $1.75 trillion target is "grounded in a plausible trajectory" for Starlink, Starship, and orbital AI combined. They project SpaceX could hit $2.5 trillion enterprise value by 2030, implying roughly 38% CAGR from current private valuations.

Scottish Mortgage Investment Trust, which holds SpaceX as 19.3% of its portfolio, publicly values its stake at a $1.25 trillion implied company value; $500 billion below the IPO ask, citing a deliberate policy of using verifiable transactions rather than press reports to mark private holdings.

The base case for the "fair" part of this valuation: Starlink alone, at typical broadband infrastructure multiples, could be worth $600-800 billion. The Space segment (with Starship potential) adds another $200-300 billion. The premium above that, roughly $600 billion-$700 billion, is a pure bet on xAI and orbital computing, both of which are losing money today.

Starlink's ARPU (average revenue per subscriber per month), notably, has been declining: from $99 in 2023 to $66 in Q1 2026. More subscribers, but paying less per head. That's a competitive pressure investors should price in.

Risks and Red Flags With SpaceX: The Full Scorecard

SpaceX’s Nasdaq 100 Question Nobody Is Talking About

Almost every major piece of coverage has focused on the valuation debate and the xAI drama. What's being underreported is this: Nasdaq has a fast-entry rule. Once SPCX begins trading, it will automatically qualify for the Nasdaq-100 after just 15 days; triggering mandatory forced buying from every ETF and index fund tracking the index. That's trillions of dollars in passively managed capital that must buy SpaceX shares simply because it's in the index, regardless of valuation opinion. 

Meaning even if you decide to avoid the post IPO buying till the valuation makes sense you might not be able to if you have index etfs like QQQ in your portfolio. 

The Bottom Line

SpaceX is genuinely one of the most extraordinary companies in human history. Its rocket fleet handles 85% of all spacecraft launched into orbit globally. Starlink is the fastest-growing telecom network on the planet. And Starship, if it works at scale, changes the cost equation for everything from satellites to Mars.

But the IPO packages all of that alongside an AI segment that is currently burning $2.47 billion in operating losses every quarter, under a governance structure that gives public shareholders essentially no voice.

The question for any investor isn't whether SpaceX is a great company. It clearly is. The question is whether the IPO price is the right entry point or whether you're being asked to be the exit liquidity for private investors who've already made the easy money.

If Starlink hits 100 million subscribers and Starship achieves reusable sub-$100/kg launch economics, this valuation will look laughably cheap a decade from now. If xAI's regulatory exposure escalates or orbital AI capex doesn't convert to margin, the losses now would belong to every SPCX shareholder, without the ability to vote out the management team responsible.

SpaceX might be the most important company of the 21st century. Whether the IPO is the right moment to participate in that story is an entirely separate calculation.