SKIP
The provided excerpt contains insufficient concrete information for a news brief. The title references a revenue surge and stock market debut, but the source material offers only a single sentence about investor concerns regarding AI infrastructure spending. No verifiable facts, figures, dates, decisions, or quotes appear in the available content. A responsible brief requires specific details about Anthropic's revenue figures, the timing of a potential debut, or substantive investor commentary that cannot be inferred or fabricated from this minimal excerpt.