Zhong Zheng Wang·2025-08-22 11:18Core Viewpoint - The Shanghai Stock Exchange (SSE) has implemented regulatory measures against abnormal trading behaviors, including written warnings and trading suspensions, in response to 253 cases of market manipulation and false declarations from August 18 to 22 [1] Regulatory Actions - The SSE issued a total of 9 regulatory letters during the period, which included 1 inquiry letter and 8 operational letters [1] - The SSE has intensified its monitoring of stocks with abnormal fluctuations, specifically targeting *ST Yazhen (603389) and other severely fluctuating stocks like Dongxin Co. and Shangwei New Materials [1] Information Disclosure - The SSE required listed companies to disclose 5 supplementary or corrective announcements as part of its ongoing regulatory oversight [1] - There were 20 cases initiated for insider trading and abnormal trading investigations, triggered by companies disclosing sensitive information or experiencing significant stock price anomalies [1]