Group 1 - The core index, the CESHKM, experienced a decline of 1.17%, closing at 6700.92 points with a trading volume of 605.59 billion [1] - Over the past month, the CESHKM index has increased by 1.47%, by 5.41% over the last three months, and has risen by 19.71% year-to-date [1] - The CESHKM index is part of a series of indices that reflect the performance of large and mid-cap securities listed in Shanghai, Shenzhen, and Hong Kong, with a base date of December 31, 2004, and a base point of 2000.0 [1] Group 2 - The top ten holdings in the CESHKM index include Tencent Holdings (10.76%), Alibaba-W (9.85%), and China Construction Bank (7.97%) [1] - The index is fully composed of stocks listed on the Hong Kong Stock Exchange [2] - In terms of sector allocation, consumer discretionary accounts for 30.40%, communication services for 23.13%, and financials for 22.31% of the index [2]