The reports say controversy surrounding AI has prompted some companies to delay US IPOs, leaving billions of dollars in funds and months of preparation on hold as Anthropic's listing approaches. AI infrastructure firms including Nscale and DayOne Data Centers continue preparing offerings, but investor willingness to assume risk has diminished following sharp share-price declines for peers such as CoreWeave. Cited market data indicated that October was on track to be the year's weakest month for US IPO fundraising, a sharp contrast with $162.6 billion raised through the end of September. Wall Street was counting on Anthropic's expected November listing, which could generate record underwriting fees. Sources familiar with the matter previously said Anthropic's offering could raise as much as or more than SpaceX's listing, while other companies testing investor demand hoped it would clear the way for additional IPOs.