Recent S-1 filing and amended disclosures have tempered Anthropic's IPO valuation expectations, driving trader consensus toward the closely matched 1.2–1.8T brackets as revenue surged to roughly $17B in Q3 2026 while net losses reached $80B largely from non-cash items. Explosive growth in Claude large language model adoption and enterprise customers contrasts with mounting compute commitments exceeding $800B and decelerating sequential revenue gains amid broader tech market volatility. Competitive positioning against peers like OpenAI adds uncertainty, with institutional investors now discussing ranges as low as $1.1–1.3T. The roadshow beginning this week and targeted Nasdaq listing around mid-November represent the immediate catalysts that could shift the final market-implied odds.