Anthropic IPO: second-biggest ever after SpaceX, Nasdaq debut on November 19

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Saturday, November 14, 2026: The Anthropic IPO is set to become the second-biggest stock market debut on record. The company behind Claude expects to price its shares on Wednesday, November 18, and to begin trading on Nasdaq under the ticker ANT on Thursday, November 19, according to its IPO website (filed with the SEC). At the top of the $70 to $78 range, the 825 million shares on offer raise up to $64.4 billion, more than any IPO except SpaceX in June 2026. Every route to the stock, from the IPO to the first trading day, is on our page Anthropic stock: how to buy.

Anthropic IPO size: how it compares with SpaceX, Aramco and Alibaba

SpaceX raised $75.0 billion at $135 per share in June 2026. Anthropic follows with up to $64.4 billion, well ahead of Saudi Aramco with $25.6 billion in 2019, Alibaba with $21.8 billion in 2014 and Facebook with $16.0 billion in 2012. Tesla raised $226 million in 2010.

Anthropic valuation: what the $70 to $78 range means

After the offering Anthropic will have about 13.09 billion Class A and Class N shares outstanding. At $70 to $78 that is a market value of $916 billion to $1.02 trillion. New investors will hold only 6.3%, and the IPO plus a concurrent $26.0 billion private placement with AMD, Broadcom, Google, Micron, Microsoft, Nvidia and TSMC Partners brings in about $84.6 billion in net proceeds. Third-quarter 2026 revenue was $17.0 billion, more than twelve times the prior year.

Our take: an IPO that sells only about six percent of the company meets heavy demand with a thin supply of shares. That can push the first price far from the offer price, in either direction.

How to take part in the Anthropic IPO in the US, Europe and the UK

In the US you request shares through a participating brokerage platform: you need an active account and submit an indication of interest before pricing, and your broker confirms any allocation on the first trading day. In nine European countries and Switzerland a BaFin-approved prospectus allows retail subscriptions until November 18 at 4 pm CET, through banks and brokers such as Deutsche Bank, BNP Paribas, eToro, flatexDEGIRO, Interactive Brokers, Revolut, Trade Republic and Scalable Capital (EEA prospectus at the SEC). UK investors apply until November 18 through intermediaries listed on RetailBook, including in an ISA or SIPP (UK retail offer at the SEC). The ISIN is US03703U1079.

Anthropic stock from November 19: trading and lock-ups

From the first trading day XTB says the actual share will be tradable at XTB (advertisement); until then the pre-IPO CFD ANTH.24H7 runs there. CFDs are complex instruments with leverage, and 78% of retail investor accounts lose money when trading CFDs with this provider. More brokers with US stocks are in our broker comparison, and our analysis of the ANTH perp on Hyperliquid shows how far pre-market prices can drift apart.

Employees and holders of about 2.7 billion shares are locked up until shortly after the first-quarter 2027 results or 180 days. The seven co-founders and holders of about 8.0 billion shares are locked up until the third-quarter 2027 results or 365 days. The founders keep 50.1% of the voting power.

Not investment advice: newly listed stocks can swing sharply, only invest money you can afford to lose.

FAQ: the Anthropic IPO

Anthropic expects to price its IPO on November 18, 2026 and to begin trading on Nasdaq under the ticker ANT on November 19, according to its IPO website.

825 million Class A shares at $70 to $78, up to $64.4 billion before the over-allotment option. Only SpaceX raised more, with $75.0 billion in June 2026.

With about 13.09 billion Class A and Class N shares after the offering, the range implies a market value of $916 billion to $1.02 trillion.

In the US through a participating brokerage platform with an indication of interest before pricing. Retail investors in nine European countries, Switzerland and the UK can subscribe through the banks and brokers in the local offer documents until November 18.

US03703U1079, according to the European prospectus of November 11, 2026.

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Transparency note: This article was produced with the assistance of artificial intelligence and reviewed by our editorial team before publication. All figures and claims were checked against the primary sources linked in the text. The feature image was generated with AI.

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