The number of companies on the board now totals 10,622.
From Jan. 14 to 18, turnover at the board stood at 1.29 billion yuan (about 190.6 million U.S. dollars), down 11.56 percent from the previous week.
The system was launched in early 2013 to supplement the Shanghai and Shenzhen stock exchanges to serve small and medium-sized enterprises.
It is seen as an easier financing channel for small businesses, with low costs and simple listing procedures. In 2018, the exchange helped China's SMEs raise 60 billion yuan.