Perplexity's valuation has remained anchored near $20 billion following its Series E-6 round in September 2025 at $20.39 billion post-money, with secondary market indications around $19.8–22 billion as of early October 2026. Rapid revenue expansion to roughly $750 million annualized run rate—more than tripling from early-year levels—stems primarily from the February 2026 launch of its Computer AI agent platform and usage-based pricing, alongside enterprise adoption. Reports from August 2026 of Nvidia-led discussions for a potential new round above $30 billion have sustained trader focus on upside catalysts, though no such financing has closed. With only weeks remaining until the October 31 resolution, market-implied odds hinge on whether any imminent equity transaction or updated secondary pricing can shift the last confirmed mark materially higher before deadline.