Anthropic’s recent S-1 filing and accelerated IPO timeline in mid-November 2026 serve as the main catalyst for current trader sentiment, with expectations centered on a valuation between roughly $1.5 trillion and $2 trillion despite explosive revenue growth to $17 billion in Q3 and persistent multibillion-dollar losses. Recent releases such as Claude Opus 5.5 and Sonnet 5.5 have strengthened its position in agentic coding and enterprise API spend, where it commands over half the market, yet intensifying competition from Google’s Gemini models and OpenAI’s latest offerings narrows capability gaps and pressures pricing power. The closely matched implied probabilities across the $1.2–1.8 trillion brackets reflect trader consensus on these offsetting factors, including compute commitments exceeding $500 billion and broader market caution around AI profitability, while the low odds on no IPO by end-2027 underscore the advanced regulatory and underwriting progress.