The North Exchange took self-regulatory measures on 20 cases of abnormal securities trading behavior this week.

This week, the Beijing Stock Exchange continued to focus on monitoring the delisting risk warning stocks "*ST Guangdao" and "*ST Yunchuang", strengthening trading risk alerts; issuing warning letters and suspending securities account trading for 20 cases of abnormal securities trading behavior, involving abnormal trading situations such as price manipulation and false reporting; conducting special inspections on two major events of listed companies.