Anthropic's initial public offering (IPO) has been delayed to November, according to a recent report. The San Francisco-based artificial intelligence company, known for its Claude family of AI models, had initially been slated for a September debut.

The delay comes amid high market anticipation for the listing. Anthropic remains the most valuable AI startup following its Series H funding round in May 2026, which valued the company at $965 billion. The company also recently unveiled its Claude Opus 5.5 model, a release that reflects Anthropic's continued focus on advancing AI technology and may shape longer-term market expectations.

The reported timeline shift has already registered in prediction markets, with a notable decrease in the likelihood of an IPO occurring by September 30, 2026. The September date had served as a reference point for contracts tracking the listing. Market pricing additionally suggests uncertainty around Anthropic's valuation expectations at IPO, with a moderate decrease in YES odds for a market capitalization of less than $1.25 trillion.

Attention now turns to further announcements from Anthropic regarding IPO specifics, such as filing updates or roadshow plans, any of which could influence pricing. Changes in strategic investor activity or new financial disclosures could also impact market expectations. Observers will be watching closely to see whether Anthropic meets its revised November timeline, as any additional delays could further affect market confidence.

Source: Crypto Briefing