SpaceX’s $28.5 Trillion Lemonade Stand
by: Jordan Kessler

SpaceX’s $28.5 Trillion Lemonade Stand?

OPINION

When I was nine, my cousin and I drew up a business plan for a lemonade stand. We counted everyone in town who might get thirsty, multiplied by a nickel, and concluded we were sitting on a fortune. My aunt read it, said it was very thorough and handed us a pitcher. We made 60 cents. The plan was never wrong, exactly. It just described a different business than the one on the card table.

I thought about that plan this week, reading the prospectus SpaceX filed with the Securities and Exchange Commission for its June stock offering.

The number on the card table

“We believe we have identified the largest actionable total addressable market (‘TAM’) in human history,” the company writes. It puts that market at $28.5 trillion.

For readers who don’t spend their evenings with IPO filings, total addressable market is the amount of money a company would collect if it sold to every customer who could conceivably buy what it sells. It’s the lemonade plan with better fonts.

The breakdown is where it gets interesting. Of the $28.5 trillion, space itself accounts for $370 billion, or about 1.3 percent. That’s the rockets, the part of SpaceX most people could pick out of a lineup. Connectivity, mostly Starlink, adds $1.6 trillion. The other $26.5 trillion is artificial intelligence, which SpaceX took on when it acquired Elon Musk’s xAI in February. Within that, $22.7 trillion is a single line: “enterprise applications.” The estimate leaves out China and Russia, the filing notes, “for illustrative purposes.”

For scale, the Bureau of Economic Analysis puts the entire U.S. economy in 2025 at about $30.9 trillion. SpaceX’s addressable market is roughly 92 percent of that. The company would like you to know it is not counting China.

What’s on the table today

The same prospectus reports what the three businesses actually took in last year. The space segment brought in $4.1 billion in 2025 and lost $657 million from operations, while spending $3 billion on Starship development. Connectivity brought in $11.4 billion and earned $4.4 billion from operations. The AI segment brought in $3.2 billion and lost $6.4 billion.

Add up the revenue and you get about $18.7 billion. That’s a little under seven hundredths of one percent of the addressable market. On the lemonade scale, it’s the 60 cents.

Like nearly every IPO filing, the prospectus carries standard cautionary language. Its market figures rest on “management’s estimates and calculations,” and readers “are cautioned not to give undue weight to such information.” There’s a risk factor for it too, titled “The estimates of future market opportunity and forecasts of market growth, and our ability to capture such markets, included in this prospectus may prove to be inaccurate.” None of that is unusual. It’s the paperwork version of my aunt handing us the pitcher.

The case for thinking this big

There’s a serious argument on the other side, and it’s a good one. A market-size estimate is standard in an IPO filing. It isn’t a revenue forecast, and SpaceX doesn’t claim it is. Investors are meant to read it as a ceiling, not a promise.

And SpaceX has a record that most companies with big numbers don’t. The prospectus calls Starlink its “first trillion-dollar market.” That business already earns billions in operating income.

This week Starship reached orbit for the first time. A company that keeps doing things it was told were impossible has some standing to size its markets generously. Its backers would say that if even a small fraction of the AI line materializes, the numbers still work.

That’s all fair. I’d only note that the difference between a market you address and a market you win is exactly the distance between a town full of thirsty people and one card table on a hot day.

My cousin, for the record, went into commercial real estate. He still talks about that lemonade stand as a proof of concept.

Disclaimer:
This opinion is for entertainment and general information purposes only, is not legal, investment, financial or other professional advice. It draws on third-party sources as of 30 September 2026, and figures may change rapidly and without notice. Always seek professional independent advice before making legal, financial and investment decisions.

SpaceX’s IPO filing claims the largest market in human history: $28.5 trillion, 92% of the U.S. economy. Its 2025 revenue: $18.7 billion.

Sources

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