Group 1 - The core index, the Chinese Hong Kong Stock Connect Preferred 50 Index (CESP50), experienced a decline of 0.98%, closing at 3086.14 points with a trading volume of 62.037 billion [1] - Over the past month, the CESP50 index has increased by 2.28%, by 7.44% over the last three months, and has risen 23.06% year-to-date [1] - The CESP50 index is compiled by the China Securities Index Co., Ltd. and aims to reflect the overall performance of the top 50 blue-chip securities listed on the Hong Kong Stock Exchange [1] Group 2 - The top ten holdings of the CESP50 index include Tencent Holdings (10.61%), HSBC Holdings (10.25%), Alibaba-W (9.71%), and others, indicating a concentration in major companies [1] - The index's holdings are entirely composed of stocks from the Hong Kong Stock Exchange, with financials making up 39.91%, consumer discretionary 23.36%, and communication services 17.08% among other sectors [2]