Lambda’s valuation has climbed from a $5.9 billion post-money mark after its November 2025 Series E to secondary-market indications near $10.1 billion as of October 2026. The primary near-term catalyst is the company’s October 2026 announcement of a planned $4 billion pre-IPO equity round targeting a $14.5 billion pre-money valuation, led by Blackstone and Coatue. That round, if completed before year-end, would imply a post-money figure near $18.5 billion and set a new benchmark ahead of a targeted 2027 IPO. Supporting momentum comes from a backlog surge to $50 billion in September, driven largely by a $35 billion Anthropic commitment, alongside recent debt facilities that fund GPU infrastructure expansion. Traders will monitor round closure timing, any revised secondary prints, and macro risk appetite for AI infrastructure names through December 31.