Perplexity AI’s valuation has held near $19.4–19.7 billion in secondary markets as of mid-October 2026, following a January 2026 Series E priced around $20–23 billion and a September 2025 extension at $20 billion. Annualized revenue reached approximately $750 million by August, driven by the Perplexity Computer agent platform and usage-based pricing, supporting continued investor interest. Reports from August indicate ongoing Nvidia investment discussions targeting above $30 billion, with some recent commentary referencing a potential $35 billion pre-money level, though no new round has closed. With only 13 days remaining until October 31, any resolution hinges on whether a priced equity transaction or large secondary sale materializes in that narrow window, as market-implied odds aggregate trader capital reflecting these near-term catalysts and execution risks.