Anthropic, a leading artificial intelligence research company, is expected to conduct an initial public offering by June 2026. The company has established itself as a significant player in the large language model and AI safety space, with its Claude AI system gaining widespread adoption among enterprises and consumers. This market tracks whether Anthropic's market capitalization will fall within the $300 billion to $400 billion range at the close of its first trading day as a public company. Market resolution will depend on official closing price data and the number of shares outstanding at IPO close. Currently trading at 0% odds, this range reflects a specific mid-market valuation outcome; the market suggests traders view the opening valuation as more likely to fall outside this band. The odds profile indicates expectations for either a higher opening valuation (above $400B) or a lower opening valuation (below $300B), though the current distribution of trades is heavily weighted away from this particular range. Understanding IPO valuations requires considering comparable AI company valuations, overall market sentiment toward the AI sector, and Anthropic's unique competitive market position at the time of listing.