Anthropic’s recent S-1 filing and accelerated IPO timeline ahead of Thanksgiving have anchored trader expectations for a closing market cap above $1.5 trillion. Explosive revenue growth—reaching roughly $16 billion in the first half of 2026—combined with the September-October launches of Claude Opus 5.5, Sonnet 5.5, and Haiku 5.5 have reinforced the company’s competitive edge in agentic coding and cost-efficient inference against OpenAI and Google. These factors support the market’s heaviest weighting on the 1.8T+ and 1.5–1.8T brackets despite analyst valuations near $1.475 trillion and steep non-cash losses tied to convertible notes. Recent Google credit support for data-center leases and commitments to a public-benefit equity fund further bolster sentiment around sustained scaling, while compute commitments exceeding $500 billion highlight the execution risks that keep lower brackets thinly traded.
This market will resolve based on Anthropic's market capitalization at the closing price on its first day of trading. If no IPO occurs by December 31, 2027, 11:59 PM ET, the market will resolve to "No IPO by December 31, 2027". Market capitalization expresses the monetary value of a company’s outstanding shares, stated in its pricing currency. It is calculated as the number of shares outstanding multiplied by the closing share price on the first trading day. If the relevant value falls exactly between two brackets, then this market will resolve to the higher range bracket. Resolution will be based on the primary exchange’s official listing page. In the event that the relevant figure is not displayed, another reliable source will be used. In the event of an interruption in the course of the normal trading session on Anthropic’s first day of trading (e.g., a circuit breaker or half-day), the market will resolve according to the official closing price of the abbreviated session. If no such official closing price is published, the market will resolve according to the next trading day on which an official closing price is published, treating that as the first day of trading for purposes of this market.