A contrarian analyst warns that Anthropic's October 2026 IPO at $2 trillion valuation could signal AI capital is entering unsustainable bubble territory.
Mega-cap AI listings have become a summer tradition. SpaceX went public in June at a $1.77 trillion valuation, instantly becoming one of the largest debuts in stock market history. Now Anthropic wants the crown outright.
Six of the Claude maker's investors told the Financial Times this week that they expect an October IPO priced at $2 trillion or more — a number that would eclipse SpaceX and make Anthropic the largest initial public offering ever completed. That's not company guidance. Anthropic's own executives haven't set a valuation target, even privately. This is backers doing math on a spreadsheet, and the math is aggressive enough to warrant caution.
The company reported $47 billion in annualized revenue as of May, according to the Financial Times. Backers now expect that figure to reach $100 billion to $120 billion by year-end — more than a tenfold jump in a single calendar year. At $2 trillion against $47 billion in stated revenue, Anthropic would trade at roughly 43 times sales. One investor went further, telling the FT that 800% annual growth justifies at least 30 times revenue at the low end — arithmetic that implies a $3 trillion valuation once the full-year run rate lands.
Surprisingly, 43 times sales isn't an outlier. It actually sits below where Palantir and Nebius already trade. That's the bull case in one sentence: on a pure multiple basis, Anthropic's ask looks conservative next to what public markets already pay for AI exposure. Yet a favorable multiple only matters if the growth holds. Anthropic's June served as a preview of what can go wrong. The Commerce Department's export controls forced Anthropic to briefly pull Fable 5 and Mythos 5 — its two most advanced models — and two investors told the FT that the ban measurably slowed revenue growth that month before access was restored. Anthropic also faces active litigation with the War Department, which labeled the company a supply-chain risk. Pricing pressure compounds these concerns: Anthropic's top model costs more than 2.5 times what OpenAI's flagship charges, while Chinese open-weight alternatives are available for a fraction of that cost.
The multiple math is only half the risk. Meta Platforms priced its 2012 IPO as Facebook at $38 a share, a $104 billion valuation at the time. By September, shares traded below $18, and the stock needed 15 months just to reclaim its offer price — even as the underlying business kept growing. SpaceX and SK Hynix both slid hard after their recent listings once public investors began applying real-time scrutiny to private-market prices. Growth didn't collapse in any of those cases. Sentiment did.
According to Nasdaq research, nearly 64% of IPOs underperform the broader market over their first three years, often by more than 10 percentage points as initial hype fades and valuations normalize. Bigger IPOs face worse odds over the following year.
Anthropic's revenue trajectory is genuinely rare — a projected tenfold jump to $100 billion-plus in a single year is not something most companies ever achieve. The multiple math even supports a case for $3 trillion. But day-one pricing on a $2 trillion IPO leaves almost no room for error. Watching Anthropic's first two or three quarters as a public company would allow time for the market to digest the valuations before deciding whether the stock — not the story — deserves investment.