Anthropic is preparing what could be the largest initial public offering on record, at a valuation of about $2 trillion. Forbes Ukraine repeated the figure on 21 October, citing international media. The figure itself traces to CNBC, which reported on 13 October that the Claude maker "is plowing ahead with what could be a $2 trillion listing", and to Reuters, which CNBC cites for a November listing. People familiar with the plans could not confirm a date, and Anthropic has not made its prospectus public.
This piece separates what has been reported, and by whom, from what the numbers imply for the Nasdaq, for the AI spending debate and for the two listed companies with the largest Anthropic stakes.
What has actually been reported
| Item | Figure | Source |
|---|---|---|
| Confidential S-1 filed | 1 June 2026 | Anthropic statement, via CNBC |
| Last private round | $65 billion Series H at $965 billion, 28 May | Anthropic, via CNBC |
| IPO valuation sought | about $2 trillion | CNBC, 13 October |
| Listing month | November | Reuters, via CNBC |
| Exchange | Nasdaq | CNBC, after Business Insider |
| Q3 2026 revenue | $16.8 billion | CNBC, Bloomberg, The Information |
| 2025 revenue / net loss | $4.6 billion / $42 billion | leaked prospectus, Reuters via CNBC |
The bank syndicate and the size of the offering have not been confirmed in the reports reviewed here. Bloomberg reported on 11 September, citing Reuters, that Nvidia was weighing up to $10 billion of backing for the IPO.
The valuation against the last private round
Anthropic was valued at $380 billion in February. The Series H in May, led by Altimeter Capital, Dragoneer, Greenoaks and Sequoia, put it at $965 billion. A $2 trillion listing would be about 2.1 times that mark, five months later.
The two yardsticks are SpaceX and OpenAI. SpaceX sold 555 million shares at $135 in June, valuing it at $1.77 trillion; CNBC later put the total raised at $85.7 billion including the underwriters' option. SPCX closed on Tuesday 20 October at $147.79, 9.5% above the offer price but 34.5% below its 52-week high of $225.64, for a market value of about $2.01 trillion, according to stockanalysis.com. OpenAI was valued at $852 billion in March, and Bloomberg reported on 29 September that it is seeking new funding at about $1.4 trillion after pushing its own IPO back.
Revenue: run-rate versus reported
The revenue picture depends on which number is used. CNBC reported that Anthropic told investors its revenue was $4.7 billion in the first quarter, $11.6 billion in the second and $16.8 billion in the third, and that it was profitable on an adjusted basis in the third quarter. That is $33.1 billion for nine months.
The growth rate is slowing fast. The second quarter was up 146.8% on the first; the third was up 44.8% on the second. Annualising the third quarter gives $67.2 billion, close to the $65 billion run-rate the company cited in July. Investors expect about $110 billion of annualised revenue by year-end, CNBC wrote, citing The Wall Street Journal.
At $2 trillion, that is roughly 30 times the annualised third quarter, or about 18 times the year-end run-rate investors expect. For comparison, SpaceX trades at about 87 times its trailing revenue of $23.04 billion, using stockanalysis.com data. The bear case is New Constructs, which values Anthropic at about $150 billion and calls it "the most ridiculous IPO of 2026", pointing to the $42 billion net loss for 2025 on $4.6 billion of revenue.
Timing: the 15-day rule
A confidential filing does not fix a date. Under the rule CNBC described in June, the public prospectus must reach investors at least 15 days before the roadshow starts. SpaceX filed confidentially on 1 April, made its prospectus public on 20 May and priced in June.
For a November listing, the public S-1 therefore has to appear within weeks. That filing is the first document with audited numbers, the share structure and the offering size. Until it appears, every valuation figure is a target reported by people familiar with the plans, not a price range.
Index inclusion: the Nasdaq-100 Fast Entry rule
Nasdaq's current Nasdaq-100 methodology contains a Fast Entry provision. A newly listed company whose full market value ranks within the top 40 index members is evaluated at the end of its seventh trading day and typically added after 15 trading days, with the announcement after the tenth. The usual three-month seasoning requirement does not apply. At $2 trillion Anthropic would clear that bar easily.
The weight is a different matter. The methodology caps low-float companies: the market value used for weighting is the lesser of total shares or three times the free-floating shares. If an offering sold 5% of the company, about $100 billion at a $2 trillion valuation, and only those shares counted as free float, the index would weight Anthropic as if it were worth about $300 billion. Index funds would have to buy, but far less than the headline value suggests. S&P 500 entry is a separate committee decision under S&P Dow Jones Indices rules and is not automatic.
Amazon and Alphabet: the listed proxies
Amazon's 10-Q for the quarter to 30 June shows nonvoting preferred stock in Anthropic carried at about $92.5 billion and convertible notes at a fair value of about $97.9 billion, roughly $190.4 billion in total. Amazon booked $50.5 billion of upward adjustments in the second quarter alone, reflecting Anthropic's funding rounds. It also agreed a financing facility of up to $20 billion, now $15 billion after a $5 billion Series H investment, and AWS expanded its commitment with Anthropic by more than $100 billion over 10 years.
Amazon closed on 20 October at $262.63, a market value of about $2.83 trillion, so the stake is about 6.7% of the company. Those marks include discounts for lack of marketability, so a $2 trillion IPO price would not translate one-for-one, but the direction is clear: a listing above $965 billion means further gains in Amazon's other income.
Alphabet's 10-Q puts its non-marketable equity securities at $124.3 billion as of 30 June, "primarily" one investment in a private company, which Bloomberg identified as Anthropic. Alphabet closed at $340.28 on 20 October, worth about $4.16 trillion; the holding is about 3% of that.
What it means for the AI capex and debt debate
Anthropic plans to spend $518 billion on cloud, computing and other infrastructure in the coming year, Reuters reported from the prospectus. The October sell-off was about how that spending is financed: CoreWeave's bond yields near 15% and record spreads on AI-related high-yield debt.
In analyst Ruslan Averin's view, a successful listing would cut both ways. Equity raised in the IPO is cheaper than the debt the market has started to question, and the Financial Times reported that Anthropic generated $1.70 of revenue for every dollar of compute in the third quarter. But a $2 trillion company adds a new, very large claim on the same pool of AI money that currently sits in Nvidia, the hyperscalers and the neoclouds. A weak debut would hit those names as well.
The five things to watch
- The public S-1. Audited revenue, GAAP versus adjusted profit, and the partner-revenue accounting that confused OpenAI's numbers.
- The price range. The implied valuation against $965 billion and against SpaceX's roughly $2.01 trillion.
- The float. It sets the Nasdaq-100 weight under the three-times-float cap.
- Dilution. Anthropic plans to commit 5% of its shares to a public benefit fund, plus 2% for every 50% rise above a baseline, CNBC reported on 18 October.
- Amazon and Alphabet earnings. Their next reports will show how the third-quarter marks moved.
Related: the SpaceX $75 billion IPO, the IPO window after SpaceX and CoreWeave and its $51 billion of debt.