Anthropic has pushed back the marketing launch of its initial public offering to mid-October at the earliest, delaying an investor roadshow that had been expected to begin within weeks, according to people familiar with the matter. The San Francisco-based AI lab is racing instead to close a $15 billion revolving credit facility before bankers start pitching the deal to institutional investors, a milestone underwriters and lenders both want locked in before public conversations begin.
The delay pushes Anthropic's listing toward the edge of the November midterm elections, a timing risk bankers are watching closely. A late-October debut would land the pricing window just days ahead of the vote, and volatile pre-election markets have historically made underwriters more conservative on IPO pricing. Anthropic's public S-1 filing, once expected within days, has also slipped to late September.
The financing at the center of the delay dwarfs what the company had in place before: the new $15 billion facility is roughly six times the size of the $2.5 billion credit line Anthropic secured earlier this year. Locking in committed bank financing gives the company room to walk away from a soft market rather than being forced to price into one, which is part of why lenders and underwriters are treating it as a precondition for the roadshow rather than a parallel workstream.
The size of the facility reflects how capital-intensive frontier AI development has become. Anthropic, like its largest rivals, is committing tens of billions of dollars to data-center capacity and chip-supply agreements to keep pace with demand for its Claude models, spending that increasingly calls for the kind of large, committed credit lines more commonly associated with industrial or infrastructure companies than software startups. A revolving facility of that size gives Anthropic flexibility to keep funding that buildout regardless of when, or at what price, the IPO ultimately gets done.
A Fundraising Run With No Recent Precedent
Anthropic confidentially submitted its draft S-1 registration statement to the SEC on June 1, days after closing a $65 billion Series H round that valued the company at $965 billion post-money, edging past rival OpenAI's roughly $852 billion valuation for the first time. Bankers are now discussing an IPO valuation as high as $2 trillion, a target that would make it one of the largest public offerings in Wall Street history if it holds.
The company's run-rate revenue has climbed just as fast as its valuation, from roughly $9 billion at the end of 2025 to about $47 billion around the time of the Series H announcement, driven in large part by enterprise demand for its Claude models. Claude Code, the coding-assistant product Anthropic launched in mid-2025, alone reached $2.5 billion in run-rate revenue by February. Morgan Stanley, Goldman Sachs and JPMorgan have been tapped as lead underwriters, with Citi also part of the syndicate — a group set to split fees that bankers estimate could reach $375 million to $525 million if the primary offering lands in the $25 billion to $35 billion range under a typical gross spread for a deal of this size.
Accounting Questions Await Scrutiny
One issue likely to draw attention once the S-1 goes public: Anthropic reports revenue from its cloud computing partners on a gross basis, while OpenAI books similar transactions net, a difference in accounting treatment that can make otherwise comparable revenue figures hard to line up. Anthropic's audited financials, once filed, are expected to clarify how the company treats compute costs and partner revenue-sharing arrangements central to its business model.
Anthropic has also built a governance structure unusual among IPO candidates: a Long-Term Benefit Trust that holds no equity in the company but retains the power to appoint a majority of the board, a mechanism designed to preserve the mission-driven governance the company has emphasized since its 2021 founding. The company declined to comment on the delayed timeline.
Assuming the credit facility closes on schedule, bankers are still targeting a listing before the midterms, which would let Anthropic avoid a second postponement into what could be a choppier market. But people close to the process caution the timeline remains fluid, and a second slip — one that pushed pricing into the live volatility of election week itself — would be a more serious signal about the state of the offering than the first delay has been.
