• Anthropic has publicly filed for a Nasdaq (NDAQ) IPO, disclosing a staggering $80.7 billion first-half loss that is largely a noncash accounting charge.
  • Revenue surged nearly fifteenfold to $16.3 billion in the first half of 2026, but the company faces mounting infrastructure costs and a Pentagon dispute.
  • Goldman Sachs (GS) and Morgan Stanley (MS) are leading the offering, with investor marketing potentially starting the week of November 9.

A Milestone Offering with a Hockey-Stick Revenue Chart

Anthropic, the San Francisco-based AI developer behind the Claude chatbot and coding tool, made its IPO registration public this morning, setting the stage for one of the most closely watched technology listings in years. The filing reveals a company growing at breakneck speed: first-half 2026 revenue reached $16.3 billion, up from roughly $1.1 billion a year earlier—a nearly fifteenfold increase. But the bottom line tells a more complicated story. Anthropic reported a net loss of $80.7 billion for the period, versus approximately $13 billion a year earlier.

The eye-popping loss, however, is not what it seems. According to Reuters (TRI), about $72 billion of that figure reflects noncash accounting charges tied to changes in the value of convertible financing instruments. In other words, it's an accounting mark, not cash burned on operations. Still, the distinction will be crucial for public investors, who will need to parse the company's cash-flow statement and adjustment reconciliations once the full prospectus is available. The company's computing and infrastructure spending nearly reached $9 billion in the first half, up from about $7.3 billion for all of 2025.

Growth and Governance

Anthropic's rise has been fueled by the popularity of Claude Code, its programming tool, and backing from Amazon (AMZN) and Google (GOOGL), which are both investors and providers of computing infrastructure. At an October 14 investor meeting, the company reportedly disclosed third-quarter revenue of $16.8 billion, up 45% sequentially, and profitability on an adjusted basis. That sequential growth, while strong, disappointed some investors who had grown accustomed to even faster expansion. Reuters reported that some existing and prospective investors have discussed a valuation around $1.5 trillion, below earlier expectations near $2 trillion.

"What institutional investors like us are really focused on is regulatory stability," said one person familiar with the matter, speaking on condition of anonymity. For Anthropic, regulatory risk extends beyond the usual IPO disclosure concerns. The company is currently embroiled in a legal dispute with the Pentagon over restrictions on military uses of its technology. Anthropic sought an appeals-court rehearing in October after a September ruling upheld a national-security supply-chain-risk designation. The company says the blacklisting has cost billions in business, and the outcome could weigh on its government-contract prospects.

A Test for the AI Trade

Anthropic's offering is shaping up as a bellwether for the broader AI investment landscape. Reuters reported on October 22 that several other technology offerings have fallen off the autumn calendar as interest rates rose and AI-market sentiment weakened. SpaceX (SPCX)'s June IPO, which valued the company at $1.77 trillion and saw a 19% first-day pop, provided a recent benchmark for mega-listings, but its shares later retreated. Rival OpenAI confidentially filed for an IPO in June and is expected to list by early 2027; analysts expect Anthropic's pricing to help set valuation benchmarks for other AI developers.

The filing also highlights the company's customer concentration: two customers accounted for roughly one-fifth of first-half revenue. And its long-term infrastructure commitments—potentially reaching $750 billion in future computing expenditure, according to Reuters—link its outlook to cloud providers, chip supply, and electricity infrastructure. Those commitments are multiyear prospective spending, not current-period outlays, but they underscore the scale of the bet Anthropic is making on continued AI demand.

Formal investor marketing could begin during the week of November 9, with a potential November debut, though these plans remain subject to change. Goldman Sachs and Morgan Stanley are leading the underwriting, according to people familiar with the matter. The company has not yet confirmed a ticker symbol. An Anthropic spokesperson did not respond to a request for comment.

Correction: An earlier version of this article misstated first-half 2025 revenue as $1.2 billion. Reporting on the draft prospectus puts the figure at approximately $1.1 billion.