港股开盘｜恒生指数跌0.82% 百度涨超2%

Group 1 - The Hang Seng Index opened down 0.82%, while the Hang Seng Tech Index fell by 1.31% [1] - Baidu's stock rose over 2% as the board authorized a stock repurchase plan totaling up to $5 billion [1] - Tencent Holdings experienced a decline of over 1% [1] Group 2 - The semiconductor sector saw a downturn, with Hua Hong Semiconductor dropping more than 3% [1]