Lambda’s valuation trajectory reflects rapid growth in AI infrastructure demand, with secondary market marks at approximately $10.1 billion as of early October 2026, up 86% from the $5.4–5.9 billion post-money Series E in November 2025. The dominant near-term catalyst is the company’s reported effort to raise up to $4 billion at a $14.5 billion pre-money valuation, led by Blackstone and Coatue, positioned as a final private round ahead of a potential 2027 IPO. This follows a $1 billion investment-grade delayed-draw term loan closed October 1 at a 6.78% fixed rate and a $926 million facility in August, both funding GPU deployments. Backlog expansion to $50 billion by September—largely from a $35 billion Anthropic commitment signed in late August—underpins bullish sentiment, though concentration risk and execution on data-center buildouts remain key variables. With the October 31 resolution date imminent, trader focus centers on whether the equity round closes or secondary prints confirm a higher mark before month-end.