What is SpaceX? (And Why Rockets Aren’t the Real Story)

SpaceX is finally going public.

After years of speculation, false starts, and Elon Musk saying the company wasn’t ready for public markets, Space Exploration Technologies Corp. filed its S-1 with the SEC and is targeting a Nasdaq listing on June 12, 2026, under the ticker SPCX.

The numbers are staggering. A reported valuation of $1.75 trillion. A potential raise of $75 billion. If it prices at those levels, it would be the largest IPO in history — surpassing Saudi Aramco’s $29 billion raise in 2019.

But before you decide whether to buy, sell, or ignore SPCX on listing day, it’s worth understanding what SpaceX actually is — because the company most people think they know is quite different from the one being taken public.

The Rockets (What Everyone Knows)

SpaceX was founded in 2002 with a mission to reduce space transportation costs and make humanity multiplanetary. For its first decade, it was primarily known as a rocket company — and a scrappy one at that, operating on far less capital than established aerospace players like Boeing and Lockheed Martin.

The breakthrough came with the development of reusable rockets — specifically the Falcon 9, whose first stages can land themselves after launch and be reflown. This dramatically reduced the cost per kilogram to orbit and upended the economics of the launch industry.

Today, SpaceX launches more mass to orbit than all other launch providers combined. Its mission success rate across Falcon rockets exceeds 99%. NASA, the US Department of Defense, and commercial satellite operators all rely on SpaceX launches. The company has essentially become the infrastructure of the space economy.

The launch business generates real revenue — but it’s not what makes SpaceX’s valuation reach $1.75 trillion.

Starlink — The Real Story

The business that drives SpaceX’s valuation is Starlink: a constellation of low-Earth-orbit satellites providing high-speed internet access to anywhere on the planet.

The premise is simple but the execution is extraordinary. Traditional internet infrastructure — fiber cables, cell towers, cable lines — doesn’t exist in much of the world. Rural areas, remote regions, maritime routes, aviation, military operations — all places where reliable internet has historically been unavailable or unreliable.

Starlink puts internet infrastructure in orbit instead. As of March 2026, the company operates approximately 9,600 satellites and serves 10.3 million subscribers across 164 countries and territories. That subscriber count more than doubled in the past year, up from 4.6 million a year earlier.

The financial profile of Starlink is what makes investors excited. Unlike launch contracts — which are one-time transactions — Starlink generates recurring subscription revenue. Residential customers pay a monthly fee. Maritime and aviation customers pay premium rates for connectivity at sea and in the air. Enterprise and government contracts add additional high-value revenue streams.

This subscription model is fundamentally more attractive to public market investors than a pure launch business. It’s predictable, scalable, and grows with subscriber count rather than requiring a new rocket launch for each dollar of revenue.

SpaceXAI — The New Addition

In February 2026, SpaceX acquired xAI — Elon Musk’s artificial intelligence company — in an all-stock deal. The combined AI operation was subsequently rebranded as SpaceXAI.

The strategic logic is that AI and space infrastructure have significant overlap — particularly around data processing, satellite-based compute, and the enormous amounts of data generated by a global satellite network. SpaceX has announced plans to deploy orbital AI compute satellites as early as 2028, positioning space as the next frontier for data center infrastructure.

The SpaceXAI acquisition adds significant uncertainty to the investment case. The combined entity reported a roughly $5 billion loss for 2025 and carries approximately $1 billion in monthly cash burn from the AI operations. Whether this AI bet pays off will take several years of post-IPO disclosure to understand.

The Numbers

SpaceX reported $18.67 billion in revenue for 2025. The Starlink connectivity segment generated $1.19 billion in profit in its most recent quarter — the most profitable part of the business by a significant margin.

The company reported a $2.6 billion operating loss for 2025, driven primarily by the SpaceXAI acquisition and ongoing investment in Starship development.

At a $1.75 trillion valuation, SpaceX would be priced at roughly 94 times 2025 revenue. That’s an extraordinary multiple — significantly higher than what companies like Snowflake or Airbnb commanded at their own high-profile IPOs. Investors buying at this valuation are pricing in dramatic revenue growth over the coming years, primarily from Starlink expansion and eventual Starship commercialization.

Starship — The Long-Term Bet

Starship is SpaceX’s next-generation fully reusable rocket — designed to carry far more payload at far lower cost than anything currently flying. It’s still in flight testing as of mid-2026, with payload delivery to orbit expected to begin in the second half of the year.

If Starship works as intended, it would further reduce the cost of getting things to space by another order of magnitude. This would unlock use cases that aren’t currently economically viable — including the orbital AI compute satellites SpaceX has announced, and eventually the Mars missions that remain Musk’s stated long-term goal.

Starship is real optionality baked into the SpaceX investment case. It’s not priced in at current valuations in any specific way — but a successful Starship program would significantly expand the addressable market for everything SpaceX does.

The Risks Worth Understanding

Valuation. At $1.75 trillion, SpaceX would be among the most valuable companies in the world from day one of trading. The current revenue doesn’t justify that valuation under conventional analysis — investors are paying for future growth that hasn’t happened yet.

Elon Musk concentration risk. Musk retains 85.1% voting control through a super-voting share class. SPCX public shareholders will have virtually no say in governance. This is a feature for investors who trust Musk’s judgment and a significant risk for those who don’t.

SpaceXAI uncertainty. The xAI acquisition added substantial losses and cash burn to the income statement. Whether AI becomes a major revenue driver or a costly distraction is genuinely unknown.

Large IPO historical performance. Research consistently shows that large, high-profile IPOs tend to underperform the broader market in the years following listing. The pattern is robust. SpaceX may be the exception — but the base rate for mega-IPOs is not encouraging.

Competition. Amazon’s Project Kuiper satellite internet constellation is launching and will compete directly with Starlink. Traditional telecom companies are also extending coverage. The satellite internet market that looks wide open today may be more competitive in five years.

Should You Buy SPCX on IPO Day?

This is the question everyone will be asking in June 2026. Here’s my honest take as a regular dad investor — not a financial advisor.

IPO day buying is generally not where individual investors have an edge. Institutional investors get allocations at the IPO price. Retail investors typically buy in the open market after listing — often at a significant premium to the IPO price if there’s heavy demand. The first-day pop often reverses.

If you believe in the Starlink story and are comfortable with the valuation, a better approach for most individual investors might be to wait — watch a few quarters of post-IPO financial disclosure, let the initial excitement settle, and consider a position once there’s public company transparency about how the business is actually performing.

For those of us who invest primarily through S&P 500 index funds, SpaceX may eventually be added to the index — which would give us automatic exposure without having to make an individual stock decision at all.

My Personal Take

SpaceX is genuinely one of the most interesting companies in the world. What it has accomplished technically — reusable rockets, a global satellite internet network, commercial human spaceflight — would have seemed like science fiction twenty years ago.

Whether that makes SPCX a good investment at $1.75 trillion on IPO day is a different question. The story is extraordinary. The price reflects extraordinary expectations. The gap between the two is what investing decisions are made of.

What I’m certain of: understanding what SpaceX actually is — rockets as infrastructure, Starlink as the recurring revenue engine, SpaceXAI as the speculative bet — gives you a much clearer picture of what you’d actually be buying.

The rockets got them here. Starlink is the real story.

Related: What is NVIDIA? covers the other company Elon Musk is deeply connected to through the AI infrastructure story. And if you want to understand how IPOs work and why large ones often underperform, check back — that post is coming soon.