Anthropic's IPO is reportedly excluding investors from mainland China and Hong Kong. Based on a Bloomberg exclusive report on November 13, multiple media outlets have confirmed this. The main reason is that several underwriting banks (led by Goldman Sachs, Morgan Stanley, etc.) have refused to accept related orders, or believe that even if they placed orders, it would be difficult to secure allocations. Part of the reason points to the US International Trade in Arms Regulations (ITAR), as AI is considered a strategically sensitive technology. Anthropic's prospectus itself does not explicitly prohibit investors from these two regions; the restrictions are more at the bank implementation level. The company declined to comment. A similar practice occurred in SpaceX's IPO, and it cannot be simply assumed that Anthropic's founders experienced anything unspeakable in China. The IPO is scheduled to price on November 18 and list on Nasdaq under the ticker symbol ANT on November 19; demand has already significantly exceeded subscriptions.