Anthropic IPO Stalls as Investors Question Valuation

Anthropic, PBC’s IPO is facing investor resistance over valuation and long-term computing commitments after the company amended its SEC registration with third-quarter results on Nov. 2, 2026, complicating plans for a roadshow the week of Nov. 9.

SEC Filings Reveal Rapid Growth Amid Large Losses

Anthropic filed its initial Form S-1 registration statement with the SEC on Oct. 26, 2026, followed by an amendment on Nov. 2 that added third-quarter and nine-month interim results. The company applied to list Class A shares on Nasdaq under the ticker ANT.

The filings showed revenue of $4.6 billion for fiscal 2025 and $16.3 billion for the six months ended June 30, 2026, up from $1.2 billion in the same period a year earlier. The amended filing reported $33.2 billion in revenue for the nine months ended Sept. 30, including $17 billion in the third quarter alone. This reflects roughly a 1,300% year-over-year increase in first-half revenue.

Profitability was mixed. Operating loss narrowed to $693 million in the first half of 2026 from $2.1 billion in the first half of 2025, and the company posted a $974 million operating profit in the second quarter. However, separate reporting attributed an $80.7 billion net loss in the first half of 2026, compared with a $42 billion loss for all of 2025.

Long-Term Computing Commitments Weigh on Valuation and Timing

Reviewers of the registration flagged at least $518 billion in cloud and infrastructure commitments over roughly a decade, with about 80% described as non-cancellable or payable regardless of usage. Other reports cited nearly $800 billion in total long-term computing obligations. This scale of contractual spending has become a central concern for investors.

Valuation discussions have centered near $1.5 trillion, which some investors view as the high end of expectations, below earlier market talk of up to $2 trillion. An external valuation estimate was reported at $1.45 trillion on Nov. 4, 2026; this was an outside opinion, not company guidance.

Investor concerns over recent losses and large buildout commitments have raised questions about pricing and timing. A roadshow planned for the week of Nov. 9 may not proceed as scheduled, and pricing had been expected during the week of Nov. 16. The registration left key offering terms, including share count, price range, and expected proceeds, undisclosed. Investors reportedly indicated the company might need to offer a larger IPO discount to secure commitments.

The contrast between rapid revenue growth and significant losses, combined with substantial computing commitments, will likely influence bankers’ pricing and timing decisions as they gauge investor appetite for what could be one of the market’s largest technology debuts.