Anthropic targets a mid-November IPO that could be the largest ever
Bloomberg reports Anthropic plans investor marketing as early as the week of November 9 with a mid-November debut, at a discussed valuation of up to $2 trillion.
Anthropic is targeting a mid-November stock market debut, pressing ahead with what could become the largest initial public offering in history. According to Bloomberg reporting, the Claude developer plans to begin formally marketing its shares as early as the week of November 9 and start trading before the Thanksgiving holiday on November 26.
The timetable is provisional rather than a fixed listing date. People familiar with the process told Bloomberg that Anthropic still intends to complete the IPO by the end of 2026 even if the mid-November target shifts. The next visible step comes sooner: Anthropic is expected to host prospective investors at its San Francisco headquarters on October 14, giving major institutional investors a chance to question senior management before the formal marketing begins. Invitations for the pre-IPO Investor Day have already been sent.
The numbers under discussion
What is far less settled is the price. Prospective investors are discussing a valuation of roughly $1.8 trillion to $2 trillion, according to Bloomberg, and Anthropic is reportedly seeking to raise up to $100 billion. Neither figure is confirmed by Anthropic. The company's last confirmed private valuation was approximately $965 billion post-money, set by a $65 billion Series H round announced in late May 2026.
If the listing lands anywhere near the discussed range, it would surpass SpaceX's record-setting June 2026 debut, which raised $75 billion at a valuation of about $1.77 trillion. The Wall Street Journal reported in September that Anthropic pushed its listing from October to November so it can show third-quarter financial results to investors first. Anthropic expects its annualized revenue run rate to top $110 billion by the end of 2026, and a later listing lets that growth appear in the prospectus.
A compressed window for the biggest AI listings
The sequence creates a tight final stretch: Investor Day in mid-October, potentially followed by formal institutional marketing during the week of November 9 and pricing in time to begin trading before Thanksgiving. U.S. capital-markets activity typically slows sharply around the holiday and into December, giving Anthropic an incentive to complete the transaction before that window closes.
The backdrop is getting less forgiving. Rising bond yields, volatile technology stocks, and a series of delayed listings are making the issuance window narrower than it was in the summer. Meanwhile, competitor OpenAI, which had also been planning an IPO this year, has delayed its timeline to next year and is reportedly seeking to raise $30 billion in new private investment instead.
Bloomberg's reporting, as relayed by AI Industry Today, frames the offering as a referendum on public-market appetite for AI: extraordinary revenue growth and deep enterprise adoption on one side, competitive pressure from rivals and unresolved questions about AI safety on the other.
For the developer world, the IPO matters beyond the ticker. Anthropic's Claude Code has become the coding agent enterprise developers ask for by name, and the company said in May that it had surpassed a $2.5 billion annualized revenue run rate on Claude Code alone. A $2 trillion public debut would make the economics of AI-assisted software development a shareholder story for the first time, with quarterly earnings calls dissecting agent adoption the way they once dissected cloud growth. Whether public markets price that growth at 30 times sales or something closer to earth is the number the whole industry will be watching.
