The most anticipated listing in artificial intelligence is facing its first round of investor pushback. Following Anthropic's investor day in San Francisco on October 14, 2026, some current and prospective investors discussed valuing the Claude maker at around $1.5 trillion in its planned November share sale, down from the roughly $2 trillion many had expected, according to Reuters. The recalibration comes despite strong headline numbers, highlighting how sensitive AI valuations have become to the pace of growth rather than its size.
What Investors Heard
At the investor event, attended by chief executive Dario Amodei and finance chief Krishna Rao, Anthropic presented a set of figures that would be extraordinary for almost any other company. Reuters, as reported by Investing.com, said Anthropic told attendees:
- Third-quarter revenue rose 45% sequentially to $16.8 billion
- The company was profitable on an adjusted basis for the quarter
- Second-quarter revenue was $11.6 billion, more than double the first quarter's roughly $4.7 billion
The problem, for some investors, is the trajectory. Revenue more than doubled from Q1 to Q2 but grew 45% from Q2 to Q3. Reuters reported that some investors expressed disappointment with the slowing sequential growth rate, and that disappointment appears to be feeding directly into price discussions.
It is important to note what the $1.5 trillion figure is and is not. It reflects conversations among investors, not a price set by Anthropic or its underwriters. The company has not published a revised valuation, and the November timing remains the reported plan.
Heavy Spending Commitments
The confidential IPO prospectus reviewed by Reuters also shed light on Anthropic's cost base. The company has committed to spend at least $518 billion over a decade on cloud services, computing and infrastructure with six partners, including Google, Amazon and Microsoft.
The filing also put last year's performance in context. Anthropic's 2025 revenue grew roughly twelvefold to nearly $4.6 billion, while the company recorded an operating loss of more than $8 billion, excluding writedowns of liabilities largely tied to earlier fundraising. The swing from deep losses to adjusted profitability within a year is one of the most dramatic turnarounds the sector has seen, but it also underlines how capital-intensive frontier AI remains.
Market Backdrop
The valuation debate is unfolding amid a broader tech selloff that has hit AI infrastructure stocks, chipmakers and neocloud providers. Investing.com noted that CoreWeave shares and bonds fell on the same day the Reuters report emerged, a sign that public markets are applying more scrutiny to AI spending.
Even at the lower figure, Anthropic's valuation would be remarkable. A $1.5 trillion price would still be roughly 55% above the $965 billion post-money valuation announced with its Series H round in May, according to FinanceFeeds. It would, however, leave Anthropic below the $1.77 trillion valuation SpaceX reached at its June listing, ending hopes that the AI lab might claim the year's largest debut by value.
Anthropic is reported to be preparing a Nasdaq listing after the US midterm elections in November. Founded in 2021 by former OpenAI executives including Dario Amodei and his sister Daniela Amodei, now the company's president, Anthropic counts Google and Amazon as investors, compute suppliers and distribution partners, relationships that will draw close attention from public shareholders.
Why It Matters
Anthropic's IPO is widely seen as a referendum on the economics of frontier AI. A successful listing at a high valuation would validate the enormous compute commitments that labs have made and could open the door for other AI companies to tap public markets. A sharply discounted one would suggest investors are becoming more disciplined about paying for growth at any price.
The episode shows that even companies posting tens of billions in quarterly revenue are being judged on growth rate momentum. For an industry whose valuations have been built on expectations of near-exponential expansion, a deceleration from more than 100% to 45% quarter-on-quarter is enough to move the conversation by half a trillion dollars.
For enterprise customers, the stakes are more indirect but real. Pressure from public investors could push Anthropic to prioritise margins, pricing discipline and enterprise contracts. Signs of that are already emerging elsewhere in the market, with large consultancies reportedly placing caps on per-employee spending on Claude.
What to Watch
Key signals in the coming weeks include whether Anthropic formally sets a price range, how its underwriters respond to investor feedback, and whether fourth-quarter guidance reassures the market on growth. Broader sentiment toward AI infrastructure stocks will also shape demand when the order book opens.
