中华港股通优选50指数收报3078.0333点，跌幅1.46%

Core Viewpoint - The Chinse Hong Kong Stock Connect Preferred 50 Index closed at 3078.0333 points on July 31, marking a decline of 45.73 points or 1.46% from the previous day [1] Group 1: Index Performance - The index reached a high of 3103.6142 points and a low of 3073.9736 points during the trading day [1] - The index was launched on January 4, 2018, with a base value of 2000 points and consists of 50 constituent stocks [1] Group 2: Stock Selection Criteria - The index selects stocks from the eligible list of the Hong Kong Stock Connect, specifically the top 50 stocks by market capitalization [1]