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The largest initial public offering in history may be about to happen, and investors are fighting to get in. On Thursday, November 12, 2026, Bloomberg News reported that Anthropic's initial public offering has drawn about six times the orders for the shares available, with bankers telling prospective investors that the company will prioritise its existing backers, leaving some would-be buyers with smaller allocations than expected. The numbers behind the listing are startling. Anthropic, the maker of the Claude chatbot, is aiming to raise up to 64.4 billion dollars by selling 825 million shares priced between 70 and 78 dollars each, which would value the company at up to 1.4 trillion dollars. Shares are expected to start trading on the Nasdaq on November 19 under the ticker symbol "ANT". If the full amount is raised, it would be the largest IPO on record, more than double Saudi Aramco's 29.4 billion dollar listing in 2019, and it would set a public market price on the company that has become OpenAI's most serious rival.
The demand is the news, but the context is what makes it matter. Anthropic is not a startup with a promise and a prototype. In the third quarter of 2026, the company reported revenue of 17 billion dollars, with an operating loss of 567 million dollars, according to its securities filing ahead of the IPO. Compare that with OpenAI, which reported about 10 billion dollars in revenue for the same quarter and an operating loss of 10.9 billion dollars. Anthropic is earning substantially more and losing substantially less than its best-known rival, and it is about to be priced by the public market. The IPO roadshow launched on November 10, the same week Anthropic released its Claude Fable 5.2 flagship model on November 9 and turned Claude into an office suite on November 10, with Claude Sheets, Whiteboards, Meetings, and Data. The timing is deliberate: the company is going to market at the exact moment it can show investors both growth and a product line that reaches beyond coding. This article explains what Bloomberg reported, what the numbers mean, why investors are piling in, and what could still change before November 19.
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What Bloomberg reported
The report itself is short, and its caution is part of the story. Bloomberg News reported on Thursday, November 12, that Anthropic's IPO has drawn about six times the orders for the shares available, and Reuters carried the report the same day. The details, including the demand for shares, could change, according to the report, and that is not boilerplate: order books in a large IPO move constantly in the final days, and a six-times oversubscription figure is a snapshot of demand at one moment, not a final allocation. What is firm is the structure of the deal. Anthropic and some of its existing shareholders are aiming to raise up to 64.4 billion dollars by selling 825 million shares priced between 70 and 78 dollars each. At the top of that range, the valuation reaches up to 1.4 trillion dollars, slightly below some investor expectations, according to the reporting. There is also a separate 26 billion dollar private placement running alongside the IPO, which would take Anthropic's total fundraising to as much as 90.4 billion dollars. Bankers told prospective investors that Anthropic will prioritise its existing backers, which means new investors who want in may receive smaller allocations than they asked for. That is the normal consequence of an oversubscribed book, and it is also a signal: when a company can choose its shareholders, it chooses the ones it already knows.
The numbers behind the listing
The scale of the deal is easier to grasp by comparison. A 64.4 billion dollar raise would be more than double Saudi Aramco's 29.4 billion dollar listing in 2019, the largest IPO on record, and it would value Anthropic at up to 1.4 trillion dollars, putting a company founded in 2021 among the most valuable public companies in the world on its first day of trading. The share count is large too: 825 million shares at 70 to 78 dollars each. The price range matters because the final price will be set by the order book, and in an oversubscribed deal the price usually lands at or near the top of the range. But the valuation deserves a careful look. At 1.4 trillion dollars, Anthropic would be valued at roughly 20 times its annualised third-quarter revenue of 17 billion dollars per quarter, which is a rich multiple even for a fast-growing AI company, and it leaves little room for disappointment. The counterargument is the growth and the efficiency. Anthropic's third-quarter revenue of 17 billion dollars is nearly three-quarters more than OpenAI's 10 billion dollars for the same period, and its operating loss of 567 million dollars is a fraction of OpenAI's 10.9 billion dollar loss. Those figures come from Anthropic's own securities filing and OpenAI's investor update, and the comparison is not perfectly clean: Anthropic's business is weighted far more heavily towards enterprise customers, while roughly half of OpenAI's revenue comes from consumers, and the two companies count some costs differently. But the direction is hard to argue with, and it is the reason investors are willing to pay a premium. The listing date is November 19, when the shares are expected to start trading on the Nasdaq under the symbol "ANT". Until then, the numbers are a plan, not a price.
Why investors are piling in
Investor demand on this scale does not come from one quarter of numbers. It comes from a week in which Anthropic showed it can ship products as fast as it can raise money. On November 9, the company released Claude Fable 5.2, its newest flagship model. On November 10, it launched its IPO roadshow at 70 to 78 dollars a share, and on the same day it turned Claude into an office suite, unveiling Claude Sheets and Claude Whiteboards in beta, making its data dashboards generally available under the new name Claude Data, and showing off Claude Meetings, which puts Claude inside a video call. The message is that Claude is no longer mainly a coding tool. Anthropic is pitching the work done in Microsoft 365 and Google Workspace, and the timing is pointed: the office launch came the same week Microsoft's own services suffered a global outage. There is also a structural reason for the demand. Anthropic's enterprise weighting means its revenue comes from large corporate contracts rather than consumer subscriptions, and enterprise revenue is stickier: companies that build Claude into their workflows are slower to leave than individual subscribers. The company's backers include Amazon and Google, which gives it both capital and distribution, and the IPO's structure, with a 26 billion dollar private placement alongside the public sale, suggests large investors were already lining up before the roadshow began. None of this guarantees the valuation is right. It explains why, at this moment, more investors want the shares than there are shares to buy.
What could still change
An oversubscribed order book is not a done deal, and the reporting is careful to say so. The details of the IPO, including the demand for shares, could change before the listing, and there are several ways it could. Market conditions can turn in a week, and Anthropic is listing into a market that has just watched Nvidia lose hundreds of billions of dollars in value in days after its chief executive resigned. A sharp move in technology stocks between now and November 19 could shrink the order book or push the final price below the top of the range. The valuation itself is a risk: at up to 1.4 trillion dollars, Anthropic is priced for years of continued growth at the current pace, and any sign that enterprise spending on AI is slowing would hit that price hard. There is also a governance question that investors will have to live with. Anthropic was founded with a public-benefit structure and a long-term mission to build safe AI, and the tension between that mission and the demands of public shareholders is real. The company's filings describe safeguards around its mission, but public markets have a way of testing those safeguards when growth slows. Finally, the competition is not standing still. OpenAI reported 50 percent revenue growth in the same quarter and has been cutting prices to win enterprise customers, Google is shipping new Gemini models every few weeks, and the AI race is now a contest between companies with very different cost structures. Anthropic is ahead on the scoreboard today. The IPO will put a public price on that lead, and the market will reprice it every day after.
Checklist: what to watch before November 19
- Watch the final IPO price: in an oversubscribed deal it usually lands at or near the top of the 70 to 78 dollar range, and a price below the range would be a warning sign.
- Watch the first day of trading on November 19 under the ticker "ANT": a large first-day rise would confirm the demand, but it would also mean the company left money on the table.
- Watch whether the 26 billion dollar private placement closes alongside the IPO, and who the buyers are, because it shows which large investors wanted in before the public sale.
- Watch Anthropic's next product moves: the office suite is in beta, and its reception will tell investors whether the enterprise story holds beyond coding.
- Watch OpenAI and Google: price cuts, new models, or enterprise wins from either rival in the next week would test the premium Anthropic is asking for.
- Watch the broader technology market: a sharp fall in AI stocks before November 19 could shrink the order book, whatever Anthropic's own numbers say.
- Remember that the six-times figure is a snapshot: order books move, allocations change, and the final demand will only be known when the shares are priced.
Bottom line
Bloomberg News reported on November 12, 2026, that Anthropic's IPO has drawn about six times the orders for the shares available, in what could be the largest first-time share sale in history. The company and some existing shareholders aim to raise up to 64.4 billion dollars by selling 825 million shares at 70 to 78 dollars each, valuing Anthropic at up to 1.4 trillion dollars, with shares expected to start trading on the Nasdaq on November 19 under the symbol "ANT". The demand is backed by real numbers: third-quarter revenue of 17 billion dollars and an operating loss of 567 million dollars, against OpenAI's 10 billion dollars in revenue and a 10.9 billion dollar loss in the same quarter. But the details could still change, the valuation is rich, and the market will reprice the company every day after it lists. If you are watching the AI race, November 19 is the day it gets a public scoreboard.
Reference sources
- Reuters via Channel News Asia — Anthropic's IPO is about six times oversubscribed, Bloomberg News reports, 12 November 2026
- Reuters — Anthropic's IPO is about six times oversubscribed, Bloomberg News reports, 12 November 2026
- WorldAttention — Tech and Finance Daily Briefing, November 13, 2026
- AI Daily Post — Anthropic Hits $17B as OpenAI Reaches $10B Revenue, 11 November 2026
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