Investors Question Anthropic's $1.5 Trillion IPO Valuation and Timing

SentiSense · Published Nov 5, 2026, 6:26 PM ET · Updated Nov 6, 2026, 7:44 AM ET

Three major Anthropic investors told the Wall Street Journal they doubt the company can go public at its targeted $1.5 trillion valuation, with one suggesting a figure closer to $1 trillion and another raising the possibility of a delay. Anthropic is aiming to raise up to $100 billion in a listing planned for the week before Thanksgiving. Polymarket odds of an IPO by November 30 fell 13 points to 70%.

Anthropic's planned IPO, targeted for the week before Thanksgiving, is facing pushback on price. Three major investors told the Wall Street Journal they doubt the company can list at its targeted $1.5 trillion valuation, with one suggesting a figure closer to $1 trillion and another wondering whether the offering might need to be delayed. Anthropic has been aiming to raise up to $100 billion.

Prediction markets moved with the reporting. Polymarket odds that Anthropic completes its IPO by November 30 fell 13 points to 70%. The skepticism comes during a sharp sell-off in AI-linked stocks that has pushed the Nasdaq into correction territory this week, which makes record-sized listings harder to price.

Scale is what makes the deal a market event. A $100 billion raise would exceed SpaceX's June IPO, which raised $75 billion according to Reuters and Bloomberg. Large IPOs pull capital from the same investors who own the public AI complex, so the pricing of Anthropic's deal is likely to be read as a verdict on AI valuations broadly, including for listed partners such as AMZN and GOOGL, which hold stakes in the company.

What to watch: whether Anthropic publicly sets a price range, any change to the targeted size or timing, and how the AI sell-off evolves into the planned launch week.