Goldman Sachs holds a 97.7% implied probability as lead underwriter for Anthropic’s IPO following the company’s October 26 S-1 filing, which formally placed the bank in the lead-left position with Morgan Stanley as stabilization agent. This designation aligns with Goldman’s recent mandate on SpaceX’s record offering and reflects its established relationships in the AI sector amid a surge in high-profile technology listings. The filing resolved prior speculation that had briefly favored Morgan Stanley, prompting a sharp repricing in trader sentiment backed by real capital. With the roadshow slated to begin shortly and pricing expected in the coming week ahead of a potential November 19 listing, the current odds embed the formal underwriting hierarchy. While the public prospectus strongly anchors consensus, any unanticipated last-minute syndicate adjustments could theoretically alter roles, though proximity to launch makes such shifts highly improbable.