Anthropic, creator of the Claude AI model family, is expected to pursue an initial public offering before the end of 2027. The company has secured substantial private funding and is positioned as one of the most valuable AI startups in the world. This prediction market specifically asks whether Anthropic's market capitalization at its IPO closing will fall within the $200 billion to $300 billion bracket. That range represents a defined segment of potential IPO prices based on current growth trajectories and comparable AI company valuations. The current 0% odds suggest minimal market conviction in this particular valuation band; traders may view the range as misaligned with likely IPO fundamentals, sentiment, or macroeconomic conditions at the time of exit. With limited 24-hour volume ($119) and moderate liquidity ($9,339), price discovery remains constrained. Market resolution occurs on December 31, 2027, using Anthropic's official closing market capitalization on IPO day—calculated as the IPO closing share price multiplied by fully diluted shares outstanding as disclosed in SEC filings. This provides a clear, verifiable, objectively determinable outcome.