Anthropic is preparing to tell investors ahead of its IPO that it sees a $30 trillion revenue opportunity, exceeding the $28.5 trillion market SpaceX pitched three months earlier.
The company is chasing the largest Total Addressable Market (TAM), which is the theoretical ceiling of total revenue available if a business captured 100% of an industry. Yet, it expects to earn only a fraction of that figure.
The revenue reality gap
Anthropic’s annualized revenue run rate hit $65 billion by the end of July, up sevenfold from roughly $9 billion at the end of 2025, according to Bloomberg. That growth ranks among the fastest in software history. Even so, $65 billion is a rounding error against a $30 trillion opportunity.
Anthropic is projecting 2028 revenue of roughly $190 billion to $200 billion, with its IPO valuation hinging on those forecasts, according to Reuters.
Even that number, three years out and built on today’s breakneck growth, would capture less than one percent of the market Anthropic is describing to investors. That gap between the pitch and the plan matters more than the headline figure itself.
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The current run rate already supports a $965 billion valuation, reached after a funding round in May, according to Bloomberg. A $30 trillion TAM does not need to be accurate to be useful. It only needs to make a valuation near $2 trillion look conservative by comparison.
SpaceX’s own $28.5 trillion claim already drew skepticism
SpaceX called its $28.5 trillion total addressable market the largest actionable opportunity in human history when it filed for its IPO in May, with $26.5 trillion of that tied to AI.
The company priced its shares at $135 in June, raising $75 billion, or as much as $86 billion once underwriters exercised their option. The shares opened at $150 and the stock briefly pushed SpaceX’s valuation above $2 trillion.
TAM figures like these rest on assumptions about how much of the economy AI could eventually touch, not on signed contracts or backlog. Before SpaceX’s IPO, one Wall Street valuation expert warned its AI-driven market assumptions were already stretching past what was defensible, according to a Wall Street Journal report.
Anthropic’s $30 trillion claim asks investors to accept an even larger assumption from a company with far less operating history.
SpaceX shares, the closest public proxy for how markets are digesting these comparisons, rose as much as 2.7% Tuesday as the report on Anthropic’s figure circulated. That reaction suggests investors read Anthropic’s number as validation of the entire TAM framework, not a threat to SpaceX’s own valuation.
That comparison is easier to grasp in scale:
- The U.S. economy generated roughly $31 trillion in GDP on an annualized basis last quarter, putting Anthropic’s stated opportunity in the same range as the entire domestic economy.
- A preliminary second-quarter revenue figure of $11.5 billion marked Anthropic’s actual sales in the same period it pitched investors on trillions in future opportunity, according to Bloomberg.
- An annualized run rate near $40 billion put OpenAI roughly $25 billion behind Anthropic heading into its own IPO process, according to CNBC.
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The race to list first is inflating the pitch
OpenAI CFO Sarah Friar told employees this month that Anthropic could go as soon as September, putting a direct rival on the public markets first. Friar said OpenAI plans to list in 2027 or sooner and called the sequencing a matter of running its own race.
That contest matters because whichever company lists first sets the valuation benchmark the other has to clear, making it another silent competition between the two of them.
A bigger TAM gives Anthropic more room to justify a valuation near $2 trillion before it earns a fraction of that stated opportunity. It also raises the bar for OpenAI, which will need its own expansive market story once it eventually files publicly. Investors in both offerings are being asked to underwrite a market size, not just a company.
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TAM inflation is becoming its own competitive category
SpaceX set the previous high-water mark for IPO market claims. Anthropic’s response, filed just months later, suggests these figures are becoming less a market analysis and more a contest for narrative space among IPO-bound companies.
That dynamic barely existed before this year’s wave of trillion-dollar AI and space listings.
The precedent this sets outlasts either company’s specific number. If every large IPO now needs a TAM in the tens of trillions to compete for attention, investors will need sharper tools to separate genuine addressable revenue from marketing math, especially once OpenAI files its own prospectus.
The next AI company heading toward Wall Street will have to answer a simple question: what number comes after $30 trillion, and who checks the math before the shares start trading.
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