Observed Signal · Oct 2, 2026 · IPO · Source: Manager Magazin · Impact: 4/5 · Sentiment: Positive
AI firm Anthropic plans IPO in November before Thanksgiving
Anthropic, the developer of the AI model Claude, is planning to go public on the stock exchange in November, according to sources cited by Bloomberg. The company is expected to formally start marketing its shares to investors starting November 9th, with trading potentially commencing before Thanksgiving (November 26) and the extended holiday weekend. This move comes as competitor OpenAI has postponed its own IPO, with CEO Sam Altman indicating it would not happen in 2026. Anthropic aims for a valuation of up to $2 trillion (€1.78 trillion). CEO Dario Amodei has emphasized the need for stronger controls on AI development due to risks of autonomous hacking, while President Trump has advocated for self-regulation.
Anthropic's IPO is a significant financial event for the AI industry, potentially one of the largest tech IPOs, signaling market confidence and capital influx for AI development. It impacts the broader tech and AI ecosystem, including advertising technology, as major AI firms influence digital infrastructure and AI-driven tools.
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Key Takeaways & Evidence Grounding
- Anthropic plans IPO in November, aiming for valuation up to $2 trillion.
- Investor marketing for the IPO is set to begin November 9.
- Trading of Anthropic shares could begin before Thanksgiving on November 26.
- OpenAI has postponed its IPO, with CEO Sam Altman saying it won't happen in 2026.
- Anthropic seeks funding to develop new AI models and data centers.
Connected Companies & Entities
2 Entities mapped“Der KI-Spezialist Anthropic will Insidern zufolge noch in diesem Jahr an die Börse gehen....”
“Zuvor hatte Anthropic-Konkurrent OpenAI seinen ebenfalls geplanten Börsengang aufgeschoben....”
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Anthropic Reportedly Plans October IPO
Bloomberg reports that AI company Anthropic is preparing for a possible initial public offering in October and has held early talks with major Wall Street banks about roles in a listing. The company has not publicly confirmed the plans. Anthropic—founded in 2021 by former OpenAI employees and developer of the Claude chatbot—recently faced a dispute with the U.S. Department of Defense that cost it a $200 million contract but secured a court injunction blocking a government 'supply‑chain risk' designation. In February 2026 Anthropic closed a financing round reported at $30 billion, valuing the firm at about $380 billion. Reported potential IPO banks include Goldman Sachs, JPMorgan Chase and Morgan Stanley; The Information estimated proceeds could exceed $60 billion.
Kalshi Traders Predict Anthropic IPO Announcement Likely
Traders on the prediction market platform Kalshi have sharply increased their estimates that Anthropic, the AI company, will announce an initial public offering (IPO) this year. The probability of an IPO announcement before November jumped from 4.7% on September 28 to 16% by Wednesday afternoon. Kalshi traders see a greater than 60% chance of an announcement before December and nearly 80% before January. This comes amid reports that Anthropic will warn investors in its IPO prospectus that its AI models pose a 'catastrophic or existential risk to humanity.' Anthropic confidentially filed its IPO prospectus in June and is seeking a $2 trillion valuation. The company plans to spend over $500 billion on cloud computing and infrastructure in the coming year. Anthropic's CEO Dario Amodei has also urged AI companies to slow down the pace of AI advancement, a stance supported by OpenAI's Sam Altman and SpaceX's Elon Musk.
Anthropic Could Overtake OpenAI as Top AI Startup
Anthropic, maker of the Claude models, is reportedly considering a funding round that could value the company at over $900 billion, potentially surpassing OpenAI’s $852 billion valuation after its recent $122 billion capital infusion. Bloomberg, citing people familiar with the matter, reported the figure. Anthropic was valued at about $380 billion in February 2026 and has seen secondary-market trades that imply valuations above $1 trillion on platforms like Forge Global. The company previously rejected offers that would have valued it at $800 billion or more. Anthropic is reportedly planning a possible IPO in autumn 2026 with banks such as Goldman Sachs, JPMorgan Chase and Morgan Stanley involved. Major technology players including Nvidia, Google and Amazon have invested in Anthropic; Google committed $10 billion at a $350 billion valuation with conditional follow-on funding and Amazon recently invested $5 billion with more planned. Anthropic’s refusal to comply with a Pentagon request earlier this year did not hurt its market momentum.
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