Anthropic filed its S-1 with the SEC on October 26, 2026, positioning the company for a Nasdaq listing under ticker ANT as early as the week of November 16. Revenue reached $16.3 billion in the first half of 2026, reflecting over 1,300% year-over-year growth, while adjusted operating income turned positive at $1.62 billion despite an $80.7 billion net loss driven largely by non-cash convertible note revaluations. The filing targets a $1.5–2 trillion valuation and a potential $100 billion raise, following the May private round at $965 billion and SpaceX’s record June IPO. Roadshow marketing is scheduled to begin the week of November 9, with underwriters led by Goldman Sachs and Morgan Stanley. Key variables for timing include market volatility amid elevated Treasury yields, disclosed AI safety risks, and post-midterm election sentiment.