Anthropic is about to make one of the most audacious pitches ever to investors on Wall Street. Rising to what may be the biggest tech listing of all time, the company behind the Claude chatbot is poised to reveal to would-be investors that its market is valued at more than $30 trillion annually. That will exceed the $28.5 trillion opportunity SpaceX faced its own backers before its public offering in June and is only just shy of the annual U.S. economy output, which is estimated at $32.4 trillion by the Federal Reserve Bank of St. Louis.

Let's not be confused by the meaning of this number, it is not a revenue projection. It is a total addressable market estimate, which the investment bankers and founders have used for decades to mean the theoretical high-water mark of a business, if it somehow managed to capture all paying customers in its category. Anthropic claims to be at their number after outlining all the universe of paid human work and professional jobs that, in principle, could be replaced or augmented by large language models. It is a large, almost philosophical idea of sizing a company, and it is supposed to serve a purpose: justify a valuation well over $2 trillion, which would rationalize the tens of billions of dollars that Anthropic is spending on data centers, and chips, and give bankers a growth story big enough to justify a raise that could exceed $100 billion when the company files its prospectus, perhaps as early as September or early October.

The real story lies between that number and the number of books anthropic currently has. By the end of July, the company's annualized revenue run rate was approximately $65bn, a figure that increased by over 100 per cent on the previous quarter to $11.6bn in the second quarter alone, from $10bn for the whole of 2025. The company is telling investors it projects revenue to be in the range of $190 billion to $200 billion by 2028, according to Reuters, and a new report from The Information has pegged a bottom estimate at $12 billion and a high estimate at $34.5 billion by 2027. Anthropic also anticipates that its cash burn will decline to approximately $3 billion this year from $5.6 billion last year, and its management expects the company to end burning cash by 2027. If the most optimistic of those internal numbers is correct, it's still a rounding error compared to $30 trillion.

It's context-dependent and not flattering. According to FactSet data referenced in the reporting, the 191 technology companies that comprise the S&P 1500 have combined reported $2.4 trillion in revenue last year. If Anthropic is going to reach its stated addressable market, it will generate about 12 times the annual output of the entire listed American tech sector, and will need to do so by winning over 100 percent of the dollars it names, which no company in history has come close to achieving. Ahead of SpaceX's listing, finance professor Aswath Damodaran (NYU) said, widely cited as the “Dean of Valuation,” that "AI market-size claims are already at the end of what's plausible and pushing past. For what it's worth, SpaceX's stock has surged on its first day of trading and is now heading back down to the $135 offering price.

It's not the first time that a company going public has been aiming for a market size this large, on the edge of the theatrical. Uber revealed to investors that it saw a $6 trillion opportunity at the time of its listing in 2019. WeWork argued for $3 trillion the same year, and despite making an attempt at going public, the whole thing was dealt a fatal blow. However, the size of the multiplier effect and its rate of expansion are what has changed. In May, SpaceX declared that its own estimate was the world's biggest actionable market, ever. Three months later, Anthropic seems to be poised to take a larger bite, claiming almost all the added value from AI creeping into all industries, not just any one product or platform.

All this conceals a broader argument, which requires more attention than it is receiving. Either the American corporate model for raising capital through IPOs has gone off the wall nuts, or these two of the most closely followed private companies in America are onto something new that will change the dynamics of creating value across the entire United States economy and no doubt the world economy yet that is driven solely by technological advancements. Pundits who have been anticipating Anthropic's IPO have been warning of that risk, too, as enterprise adoption of expensive, cutting-edge models hits a possible ceiling as Google and a cooler-temperated OpenAI battle it out for pricing dominance within the bigger corporate market, but its actual addressable market may prove much smaller than the number of users it claims to have.

None of this implies that Anthropic's business is not actual and is not expanding fast, it surely is. However, there is a point of difference between a company that's scaling rapidly and a company that is asking to be valued as if it will one day out earn their country. This fall, investors should make a distinction between them when reviewing the prospectus.