The aggregate net profit of 19 brokerages listed in China slid 72.4 percent month-on-month in June, and seven brokerages reported a loss amid tough market conditions, according to brokerages' financial statements.

Analysts said that brokers' traditional business had taken a hit from the weak stock market and worsening investor sentiment, but innovative activities such as margin trading might boost brokerages' profits in the future.

The capitalization of the A-share market contracted some 3.5 trillion yuan ($570.6 billion) in June, and lower volume affected brokerages' performance "significantly", according to a report by TX Investment Consultancy.