Anthropic, the US maker of the Claude AI assistant, plans to list its shares on the Nasdaq stock exchange in New York, and Brazilian savers are asking how to get in. Its own prospectus, a filing with the US Securities and Exchange Commission (SEC), says the IPO itself is open in Brazil only to “professional investors” using accounts abroad.
An IPO, or initial public offering, is the first sale of a company’s shares to the public. The amended filing of Tuesday 10 November 2026 sets a price range of US$70 to US$78 a share.
Key Facts
—What. Anthropic seeks US$70 to US$78 a share for a Nasdaq listing under the symbol ANT.
—Brazil. The prospectus limits the IPO to Brazilian professional investors buying through accounts abroad.
—Size. 825 million Class A shares, plus US$26.0 billion of stock sold privately to seven technology companies.
—Prediction markets. Polymarket, a crypto-based prediction market, puts a Thursday 19 November debut at 93.2%, with US$360,717 traded across the whole event, at 04:25 a.m. ET on 14 November.
—As of. 14 November 2026, 09:25 GMT.
What the Filing Says
Anthropic filed an amended registration statement, Form S-1/A, with the SEC on Tuesday 10 November 2026. It says the company has applied to list Class A common stock on the Nasdaq Global Select Market under the symbol ANT.
Separately, Google, Nvidia, AMD, Broadcom, Micron, Microsoft and TSMC Partners, the chipmaker’s investment arm have agreed to buy US$26.0 billion of Class N shares, a separate share class for these buyers, at the IPO price. The filing says that private sale closes right after the public offering.
What Brazilians Can and Cannot Do
The prospectus carries a notice for Brazil. It says the shares are not registered with the Securities and Exchange Commission of Brazil (CVM) and may be offered only to Brazilian “Professional Investors”, who must buy through a non-Brazilian account, settled outside Brazil in foreign currency.
The same notice says trading of these shares on regulated securities markets in Brazil is prohibited. That text covers the offering itself; it does not say what rules apply to ordinary trading after the debut, which each broker sets for its own clients.
CVM, Brazil’s securities regulator, defines a professional investor, among others, as a person or company with more than R$10 million (about US$1.76 million at 5.67 reais per dollar on 14 November) in financial investments who also signs a written declaration. Most Brazilian savers do not meet that test.
A Brazilian depositary receipt, or BDR, is a certificate traded on Brazil’s B3 exchange that represents shares held abroad. B3, the São Paulo exchange, says unsponsored BDRs, which the foreign company does not arrange, are open only to investors defined by CVM rules.
Their issuers are not registered with CVM or B3, and we found no announced BDR for Anthropic.
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| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| USD/BRL | 5.67 | +0.45% | — | 5.64 | 5.67 | 5.63 | — |
| SELIC | 13.75% | — | — | — | — | — | |
| PETR4 | 45.30 | +1.34% | — | 44.70 | 45.44 | 44.62 | 23,431,200 |
| VALE3 | 63.50 | -0.70% | — | 63.95 | 64.24 | 63.12 | 11,175,700 |
| ITUB4 | 42.27 | +1.42% | — | 41.68 | 42.56 | 41.62 | 19,532,400 |
| BBDC4 | 14.52 | +1.40% | — | 14.32 | 14.54 | 14.27 | 32,353,600 |
| BBAS3 | 15.10 | -2.45% | — | 15.48 | 15.60 | 14.98 | 85,573,900 |
| B3SA3 | 14.89 | +0.88% | — | 14.76 | 14.94 | 14.53 | 34,792,900 |
| ABEV3 | 15.79 | +0.25% | — | 15.75 | 15.83 | 15.64 | 13,254,800 |
| WEGE3 | 51.31 | -0.66% | — | 51.65 | 52.05 | 50.93 | 7,741,000 |
| PRIO3 | 63.30 | +0.00% | — | 63.30 | 63.83 | 62.65 | 10,460,300 |
| SUZB3 | 54.77 | -2.27% | — | 56.04 | 55.98 | 54.66 | 3,845,300 |
| RENT3 | 30.07 | +1.66% | — | 29.58 | 30.35 | 29.58 | 7,599,300 |
| AZZA3 | 15.91 | -5.86% | — | 16.90 | 17.10 | 15.72 | 6,641,600 |
| CSNA3 | 3.72 | -12.06% | — | 4.23 | 4.14 | 3.71 | 54,060,600 |
| GGBR4 | 24.73 | -0.96% | — | 24.97 | 25.09 | 24.53 | 5,458,200 |
| ENEV3 | 26.81 | -0.70% | — | 27.00 | 27.09 | 26.64 | 5,990,500 |
| LREN3 | 9.72 | +3.40% | — | 9.40 | 9.77 | 9.34 | 28,045,200 |
How the Valuation Looks
The filing states no market value, so we multiplied its share counts. The S-1/A lists 7.43 billion Class A and 5.66 billion Class N shares after the deal, or about 13.09 billion in total, which is roughly US$916 billion at US$70 and US$1.02 trillion at US$78, by Rio Times arithmetic that ignores options.
The company says run-rate revenue, an annualised estimate from recent usage, was about US$81 billion on 31 October 2026, so the top of the range is about 12.6 times that. Revenue was US$33.2 billion in the nine months to 30 September 2026, and the operating loss was US$1.26 billion, according to the S-1/A.
What Prediction Markets Say
Polymarket, a crypto-based prediction market, showed a 93.2% price for an IPO date of Thursday 19 November 2026 at 04:25 a.m. ET on 14 November, with US$360,717 traded. These prices are bets, not polls or forecasts by Anthropic.
Why we show this: prediction markets turn real-money bets into a live probability that moves within minutes of the news, which is why investors, campaigns and newsrooms in the United States now follow them closely. We show them next to polls and official results, never instead of them.
What It Means for You
For a US reader, the Brazil rule shows that a US listing is not automatically open to retail savers abroad at the IPO price. Brazilians with less than R$10 million (about US$1.76 million) are unlikely to join the offering itself, and this is not investment advice.
What Is Not Known
The final price, the number of shares sold and the first trading day are not confirmed by the company. Press reports point to pricing on Wednesday 18 November and trading on Thursday 19 November.
We could not confirm how Brazilian retail investors will be treated in later trading, or whether any BDR will appear. Brazilian tax treatment is not covered, as we did not verify it with the tax authority.
What to Watch Next
Watch for the final price and the first day of trading on Nasdaq, which Polymarket places on Thursday 19 November 2026. Any B3 or CVM notice on a depositary receipt would appear on their own websites, but no date has been given.
Frequently Asked Questions
Can Brazilians buy Anthropic shares in the IPO?
The prospectus says the IPO shares may be offered in Brazil only to professional investors, through accounts abroad. A professional investor under CVM Resolution 30 generally holds more than R$10 million (about US$1.76 million).
Is there an Anthropic BDR on B3?
We found no announcement of one. A BDR is a Brazilian certificate backed by foreign shares, and B3 says unsponsored ones are limited to investors defined by CVM rules.
What price range has Anthropic set?
The S-1/A filed on 10 November 2026 estimates US$70 to US$78 per Class A share, for 825 million shares. The final price is set at pricing.
When will Anthropic start trading?
The filing gives no date. Press reports and Polymarket point to Thursday 19 November 2026, which is not confirmed by the company.
Sources: Anthropic, PBC Form S-1/A, SEC EDGAR, 10 November 2026; CVM Resolution 30, article 11; B3 unsponsored BDR investor alerts; Polymarket Anthropic IPO Date; RT USD/BRL rate, 14 November 2026. Related: Anthropic IPO valuation and its 2028 forecast, Brazilians buying US shares, Nvidia deal and Brazilian investors, Brazil news.
This article was produced by The Rio Times’ automated AI newsroom. Editorial responsibility: Matthias Camenzind, Publisher and Editor-in-Chief. The Rio Times also runs Ask Rio Times, which answers from 100,000+ of our own articles, the daily Latin America Power Map, and prediction-market odds on elections and markets.. How we use AI · Report an error
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