Tracking the Investigation of Chinese Investment Banks in Hong Kong: What Happened?

On March 12, Guotai Junan International announced that on March 10, 2026, the Hong Kong Securities and Futures Commission and the Hong Kong Independent Commission Against Corruption visited its Hong Kong business location with a search warrant to retrieve certain documents. Subsequently, an employee of the institution was detained for investigation by the ICAC. Guotai Junan International stated that it attaches great importance to this matter and will closely monitor its developments. Previously, Caixin reported that the ICAC and the Hong Kong Securities and Futures Commission recently conducted joint law enforcement, with surprise inspections carried out at the Hong Kong offices of two Chinese-funded securities firms, during which the head of the Equity Capital Markets (ECM) department of Guotai Junan Hong Kong was taken away to assist in the investigation. It is important to note that the ECM team is primarily responsible for core equity financing activities such as IPO pricing, new share placements, and refinancing, which is why the market generally associates this investigation with Hong Kong IPOs and placements. A source who wished to remain anonymous revealed to Xinfeng that the investigation of Guotai Junan personnel in Hong Kong was triggered by suspected insider trading activities. It is worth mentioning that past insider trading in the Hong Kong stock market has often occurred in privatization projects. An investment banker in Hong Kong pointed out: "It depends on the internal organizational structure of the investment bank. In many Chinese-funded securities firms' Hong Kong subsidiaries, privatization projects may involve ECM in the execution phase." The regulation of insider trading in the Hong Kong market has a long history. Since the second half of last year, several personnel from the Hong Kong Stock Exchange and the Hong Kong Securities and Futures Commission, as well as securities brokers and influencers, have been investigated for involvement in insider trading activities. In February this year, the Hong Kong Securities and Futures Commission disclosed a case of suspected insider trading involving former Hong Kong Stock Exchange assistant vice president Chen Zhenghua and others. The strong actions taken by Hong Kong regulatory authorities may help further stabilize the fair trading order of the Hong Kong stock market. Risk Warning and Disclaimer The market has risks, and investment requires caution. This article does not constitute personal investment advice and does not take into account the specific investment objectives, financial situation, or needs of individual users. Users should consider whether any opinions, views, or conclusions in this article are suitable for their specific circumstances. Investment based on this is at their own risk