Anthropic's surging revenue trajectory and aggressive 2028 forecasts of $190–200 billion underpin the tight clustering of trader-implied odds around $2.0–2.5 trillion for its IPO closing market cap. The company's May 2026 Series H round at a $965 billion post-money valuation, backed by major investors, reinforced momentum amid AI sector expansion, while recent confidential filings highlighted growth catalysts alongside risks such as regulatory pushback. With probabilities split closely between the top two bins, outcomes hinge on near-term execution, broader equity multiples for high-growth tech, and any shifts in monetary policy or risk appetite ahead of a potential late-2026 listing.