遭立案后天风证券开盘大跌，有外资Q3退出天风证券前十大股东

Core Viewpoint - Tianfeng Securities experienced a significant drop in stock price following the announcement of a regulatory investigation related to information disclosure violations and illegal financing practices [1] Group 1: Stock Performance - On December 1, Tianfeng Securities opened nearly 9% lower and led the decline in the brokerage sector, with a midday price of 4.51 yuan per share, reflecting a drop of 6.63% [1] - The overall brokerage sector showed mixed performance, with most stocks rising while Tianfeng Securities fell [1] Group 2: Regulatory Investigation - The China Securities Regulatory Commission (CSRC) decided to investigate Tianfeng Securities due to suspected violations of information disclosure and illegal financing [1] - The investigation may be linked to issues regarding fund occupation by the former major shareholder, Wuhan Contemporary Technology Industry Group Co., Ltd., as disclosed in the 2022 annual report [1] Group 3: Foreign Investment Activity - UBS was reported to have held 87.85 million shares of Tianfeng Securities, representing 0.87% ownership, as of June 30, but exited the top ten shareholders by the end of September [1]