According to the Shenzhen Stock Exchange announcement, from February 7 to February 13, the firm carried out disciplinary action on 1 case of violation involving information disclosure and regulation of operation; issued a supervisory letter for 3 cases of violation, 2 involving information disclosure and regulation of operation violations, and 1 case involving securities trading violations. This week, 16 letters of inquiry and 25 other letters were sent. Furthermore, from February 10 to February 14, the firm adopted self-regulatory measures for a total of 125 cases of abnormal securities transactions, involving abnormal trading situations such as intraday suppression and false declarations; a total of 5 important matters involving listed companies were verified, and 2 suspected cases of illegal violations were reported to the Securities Regulatory Commission. (Shenzhen Stock Exchange)