Anthropic stuns markets with low burn and rumours of Oct "going vertical"
What's the deal? Anthropic, PBC publicly filed its Form S-1 registration statement with the US Securities and Exchange Commission on 26 October 2026 for a proposed initial public offering of its Class A common stock. It intends to list on the Nasdaq Global Select Market under the ticker "ANT". The number of shares and the price range have not yet been set; Goldman Sachs and Morgan Stanley are named as contacts for the preliminary prospectus. The company had filed confidentially in June, according to CNBC.
By the numbers Revenue rose to $16.29 billion in the six months to 30 June 2026, from $1.16 billion a year earlier; full-year 2025 revenue was $4.59 billion. Operating expenses were $16.98 billion, including $8.95 billion on compute and infrastructure, so the operating loss narrowed to $693 million from $2.14 billion in the first half of 2025. The headline net loss of $80.7 billion is mostly a $72.4 billion non-cash charge for changes in the fair value of convertible notes, derivative liabilities and SAFEs.
The cash pile "As of June 30, 2026, we had raised an aggregate of $141.1 billion of capital and had cash and cash equivalents of $112.4 billion and short-term investments of $19.3 billion," the filing says. The balance sheet also shows $108.6 billion of convertible notes payable. Research firm SemiAnalysis read that as roughly $9.7 billion burned to date, calling it "likely the most efficient scaling of a business in the history of capitalism", and said the company was profitable on an operating basis in the June quarter. Altimeter's Jamin Ball made the same point: less than $10 billion of total burn to reach the $16.8 billion of third-quarter revenue that has been widely reported (that quarter is not yet in the S-1).
October going vertical? Atreides Management's Gavin BakerDealroom has a profile for this one. Try Dealroom → wrote that he was "shocked, absolutely shocked" that Anthropic's ARR has "likely gone vertical in October" after it cut token prices — and that the same pattern hit the wider AI market, with GPU rental prices surging while token prices fell. He pointed to OpenRouter usage data shared by @lfg_cap and said Anthropic would be unlikely to disclose October ARR in a future S-1 update if it were not positive. That October figure is not in the filed S-1.
Who controls it? Anthropic is a Delaware public benefit corporation. Its Long-Term Benefit Trust, a body of financially disinterested trustees, holds Class T stock that elects directors who will make up a majority of the board. A single Class F share, held by an LLC whose members are CEO Dario Amodei, President Daniela Amodei and the five other co-founders, carries 50.1% of the votes on other matters. Employees will get non-economic Class E voting stock, and strategic partners mainly hold non-voting Class N shares. Anthropic will be a "controlled company" under Nasdaq rules.
What's next? CoinDesk, citing Fox Business's Liz Claman, reported that pricing on 19 or 20 November remains on track, and that the Financial Times says investors expect a valuation of $1.5–1.75 trillion. The filing follows weeks of reporting on a draft prospectus that set out Anthropic's compute commitments and customer concentration.
Sources: Anthropic · S-1 on SEC EDGAR · CNBC · CoinDesk · SemiAnalysis on X · Jamin Ball on X · Gavin Baker on X · Baker follow-up
