Artificial intelligence news: Anthropic IPO and what investors doubt

What happened. Anthropic filed its S-1, the document that registers an IPO, with the US Securities and Exchange Commission (SEC) on October 26, 2026. The shares are to trade on Nasdaq under the ticker ANT. The company filed an amended version, the S-1/A, on November 2. Reuters reported that the first filing did not reveal the offering terms.

The numbers. CNBC reports revenue of $16.29 billion for the six months ended June 30, 2026, against $1.16 billion a year earlier. The net loss widened to $80.7 billion. Reuters says this was largely due to a non-operating item tied to bonds convertible into the company's shares. The operating loss for the same period narrowed to $693 million, Reuters says. Reuters also reports that the company warned in the prospectus that its revenue growth rate could decline.

What investors doubt. WSJ, citing people familiar with the matter, reports that major investors are increasingly skeptical of a valuation of about $1.5 trillion after a market selloff tied to the unwinding of AI bets. It adds that the IPO is planned for the week before Thanksgiving and was expected to raise up to $100 billion. Other investors, WSJ says, think October results could soften the blow. CNBC reports investors see a valuation of $1 trillion to $1.5 trillion, below the $2 trillion floated earlier. For scale, the last private round in May valued the company at $965 billion, Reuters reports.

The data center backlash. CNBC reports that in the November 3 elections, local voters rejected data center-related ballot measures in 40 of 41 cases. An NBC News exit poll found more than half of voters called AI data centers a crucial or major factor. CNBC notes that the amended prospectus lists commitments of about $895.4 billion for compute and infrastructure. The risk factors in the S-1/A include opposition to data center development. Reuters earlier cited more than $600 billion in compute deals: the sources use different totals and we do not merge them.

Context. CNBC says the Nasdaq had its steepest drop in 19 months on November 5. For the sell-off, read our story: https://freekonomist.com/en/news/ai-stock-sell-off-explained-2-5-trillion-week-2026-11-07/. We make no price forecasts and give no advice on whether to buy shares.

Confirmed facts

• Anthropic filed its S-1 for an IPO on October 26, 2026; the shares are to trade on Nasdaq under the ticker ANT; the offering terms were not disclosed in that version.^[4]
• Amendment S-1/A-1 is dated November 2, 2026 (registration number 333-299633).^[1]
• Revenue for the six months ended June 30, 2026 was $16.29 billion against $1.16 billion a year earlier (per CNBC, citing the S-1).^[5]
• The net loss for the first half of 2026 was $80.7 billion, largely due to a non-operating item on bonds convertible into shares; the operating loss narrowed to $693 million.^[4]
• The company warned in the prospectus that its revenue growth rate could decline.^[4]
• The last private round in May 2026 valued the company at $965 billion.^[4][5]
• WSJ, citing people familiar with the matter, says major investors are increasingly skeptical the IPO can go ahead at the expected valuation of about $1.5 trillion.^[3]
• WSJ says Anthropic aims to stage the IPO the week before Thanksgiving; it was expected to raise up to $100 billion.^[3]
• CNBC reports investors see a valuation of $1 trillion to $1.5 trillion, below the $2 trillion floated in recent months.^[2]
• CNBC says the amended prospectus discloses purchase and lease commitments of about $895.4 billion, substantially all related to compute and infrastructure.^[2]
• Reuters on October 26: the company committed more than $600 billion to computing deals.^[4]
• In the November 3 elections local voters rejected data center-related ballot measures in 40 of 41 cases; an NBC News exit poll found more than half of voters called AI data centers a crucial or major factor.^[2]
• The risk factors in the S-1/A cite, among other things, opposition to AI and to data center development.^[1]
• CNBC says Anthropic would be the first pure-play AI company to go public.^[2]
• The Nasdaq had its steepest drop in 19 months on November 5.^[2]

Implications

• ConfirmedThe sources give different valuations: $1.5 trillion (WSJ, Reuters) and $1 trillion to $1.5 trillion (CNBC), while the May private round was $965 billion.
• ConfirmedThe investor doubts WSJ reports rest on anonymous sources; the final offering price is not yet known.
• Our readingPublic anger over data centers may add risk for companies like Anthropic, but the sources do not measure any effect on the offering price. This is our reading.

Still unknown

• The offering price, number of shares and exact IPO date
• What the valuation looks like if the market selloff continues
• How the company's October results will shape investor views
• How the data center opposition will affect the company's costs

Who it affects

United States, World. Readers who follow AI, the IPO market and data center spending, and anyone curious what AI costs to build

Sources

1. U.S. Securities and Exchange Commission (EDGAR): Anthropic, PBC, Form S-1/A-1, filed November 2, 2026 November 2, 2026 · official
2. CNBC: Anthropic IPO meets AI backlash after midterms show stinging rebuke of data centers November 7, 2026 · media
3. The Wall Street Journal: Exclusive | Major Investors Are Skeptical Anthropic IPO Can Achieve $1.5 Trillion Valuation November 5, 2026 · media
4. Reuters: Anthropic's soaring sales, steep losses put AI frenzy to IPO test October 26, 2026 · media
5. CNBC: Anthropic IPO live updates: S-1 filing October 26, 2026 · media