港股开盘，恒指开跌0.05%，科指开跌0.34%。比亚迪股份(01211.HK)涨1.85%，蔚来汽车(09866.HK)绩后跌0.18%。

Group 1 - The Hang Seng Index opened down 0.05% and the Tech Index opened down 0.34% [1] - BYD Company Limited (01211.HK) saw an increase of 1.85% [1] - NIO Inc. (09866.HK) experienced a decline of 0.18% after its earnings report [1]