Huatai Securities' (SHA:601688) attributable profit rose 138% year over year to 7.21 billion yuan in the third quarter, according to a Wednesday filing with the Hong Kong Exchange.
Earnings per share at the brokerage increased 152% year over year to 0.78 yuan.
Operating income grew 58% year over year to 14 billion yuan.
Shares jumped 3% in Hong Kong during Thursday's trading.