Guohai Securities reported a 21.6 percent year-on-year growth in net profits in the first half of this year, the brokerage firm said on Friday.

Guohai Securities was the first among 19 A-share listed brokerages to release first half reports.

In the first half of 2013, the brokerage realized revenue of 898 million yuan ($146.4 million), an increase of 13.87 percent year-on-year, and 181 billion yuan in net profit.

Guohai's earning per share in the first half of 2013 was 0.1 yuan, up 25 percent year-on-year.

Analysts said the sluggish A-share market might affect brokerage performance.