上交所：对*ST亚振等异常波动风险警示股票以及退市锦港、退市锦B等退市整理股票进行重点监控

Group 1 - The Shanghai Stock Exchange issued a regulatory notice regarding abnormal trading behaviors, including price manipulation and false declarations, from June 30 to July 4, 2025 [1] - A total of 139 cases of abnormal trading behaviors were subjected to written warnings and other regulatory measures [1] - Stocks under special monitoring include *ST Yazhen (603389) for abnormal volatility risk warnings, as well as delisted stocks such as Delisted Jinguang (600190) and Delisted Jin B (900952) [1] Group 2 - The exchange is conducting special investigations into 14 significant matters related to listed companies [1]