Anthropic’s confidential S-1 filing in June 2026 and subsequent reports targeting a mid-November debut—with formal marketing eyed for the week of November 9—represent the dominant near-term catalyst for IPO-related market sentiment. The company’s May 2026 Series H round valued it at $965 billion post-money after raising $65 billion, yet prospective investors now price a $1.8–2 trillion range for the listing, potentially raising up to $100 billion and eclipsing SpaceX’s record. Rapid revenue growth to a roughly $47–65 billion annualized run rate contrasts with a $42 billion net loss in 2025 and $518 billion in projected compute commitments, underscoring the capital-intensive path to scale. Key upcoming milestones include investor meetings scheduled for mid-October and the need to demonstrate Q3 results ahead of Thanksgiving. Market-implied odds reflect aggregated trader assessment of these execution and valuation dynamics amid broader AI-sector volatility.