Anthropic's Investors Are Talking Up A $2 Trillion IPO

Investors in Anthropic expect the maker of Claude to go public at a valuation of $2 trillion or more, possibly as early as October, according to a Financial Times report published on Wednesday. If they are right, it would be the largest stock-market debut in history. The load-bearing words are “they” and “expect”: the numbers in the report come from the shareholders, and the company has put no figure on anything.

The FT’s headline states the frame exactly: “Anthropic investors bet on $2tn valuation in record IPO”. The paper spoke to half a dozen existing investors working from their own models, one of whom pointed to figures implying a valuation of up to $3 trillion. Whether October would mean paperwork going public or shares actually trading is not settled in any account of the report.

What is actually on the record

Anthropic’s own public steps are narrow and precise. On 1 June it announced a confidential draft S-1, the registration document that precedes a US listing, and the announcement said only this about terms: “the number of shares to be offered and the price have not yet been set”. The statement was published under Rule 135 of the Securities Act, the provision that lets a company confirm a filing exists while saying almost nothing else.

“Anthropic, PBC confidentially submitted a draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission for a proposed initial public offering of our common stock.”

Anthropic, 1 June 2026

The last priced reality is ten weeks old. The Series H round closed on 28 May: $65 billion raised at a $965 billion post-money valuation, led by Altimeter, Dragoneer, Greenoaks and Sequoia, with $15 billion of hyperscaler commitments including $5 billion from Amazon. In the same announcement, Anthropic said its run-rate revenue had “crossed $47 billion earlier this month”. That is the only revenue figure the company itself has published for the period; it has released no audited financials, and will not until the S-1 becomes public.

CNBC reported on the same day as the FT that chief financial officer Krishna Rao is leading early meetings with prospective IPO investors, covering the Claude models, Claude Code and the company’s enterprise position. On the question the FT’s sources answered so readily, CNBC’s account is direct: valuation has not been discussed in those meetings. Anthropic did not immediately respond to CNBC’s request for comment.

How far the bet stretches

The arithmetic the investors are running is visible from the public rungs. The valuation went from $380 billion in February to $965 billion in May, a 2.5-times step in fifteen weeks. Reaching $2 trillion by October would need slightly more than a doubling in about five months, a slower rate of climb than the one just recorded. That is the case for the bet. The case against is that private rounds are priced by enthusiasts and IPOs are priced by everyone.

The record it would break is fresh. SpaceX listed on Nasdaq on 12 June at $135 a share, raising $75 billion at a $1.77 trillion valuation, the largest IPO to date. A $2 trillion Anthropic debut would pass it; $3 trillion would nearly double it.

A listing this size would also arrive with recent scar tissue. In June the US Commerce Department briefly placed export controls on Anthropic’s Fable 5 and Mythos 5 models, and lifted them eighteen days later after what Commerce Secretary Howard Lutnick called work “to ensure alignment across the US Government”. Prospective public shareholders will read that episode as a reminder that frontier AI revenue now runs through Washington.

For the company’s model line-up, see the Claude Fable 5 and Claude Opus 5 reference pages.