Goldman Sachs commands a 91% market-implied probability of serving as lead underwriter for Anthropic's IPO, driven by its dominant position in technology equity issuances and proven execution on large-scale growth-company offerings. Trader consensus reflects the bank's deep expertise in AI-sector valuations, extensive institutional distribution capabilities, and history of securing lead roles in comparable high-profile debuts. This positioning aligns with broader patterns where top-tier bulge-bracket firms capture the majority of mandates for late-stage private companies transitioning to public markets. While the odds indicate strong alignment, realistic scenarios that could alter the outcome include undisclosed existing banking relationships, shifts in the underwriting syndicate, or regulatory filing timelines that introduce new competitive dynamics.