港股开盘：恒生指数涨0.39%，恒生科技指数涨0.8%，国泰君安国际高开近6%

Group 1 - The Hang Seng Index opened with a gain of 0.39% and the Hang Seng Tech Index increased by 0.8% [1] - SF Holding (顺丰同城) saw a high opening of 3.21% with a net profit of 137 million yuan for the first half of the year, representing a year-on-year growth of 120.4% [1] - Guotai Junan International (国泰君安国际) opened 5.88% higher, reporting a profit attributable to ordinary shareholders of 550 million HKD for the first half of the year, an increase of 182% year-on-year [1]