滚动更新丨A股三大股指集体低开，算力概念股走低

Group 1 - Oil and gas stocks are active in early trading, with Junyou Co. hitting the daily limit, and Tongyuan Petroleum and Keli Co. rising over 7% [1] - The A-share market opened lower, with the Shanghai Composite Index down 0.45% at 3804.48 points, and the Shenzhen Component Index down 0.63% at 13037.08 points [3][4] - The shipping index (European line) saw its main contract increase by 3%, currently reported at 1118.0 points [6] Group 2 - The CPO and communication equipment sectors opened collectively lower, with Dingshin Communications dropping over 9% and Tianfu Communications down over 5% [2] - The Hang Seng Index fell by 0.33%, with the technology sector weakening, notably Baidu dropping nearly 5% [4]