Group 1 - The core index, the China Securities National New Central Enterprises Modern Industry Leading Index, rose by 1.33% to 1166.46 points with a trading volume of 20.746 billion yuan [1] - Over the past month, the index has increased by 0.43%, but it has decreased by 4.56% over the past three months and by 5.29% year-to-date [1] - The index is customized by Guoxin Investment Co., Ltd., selecting 50 representative listed companies in fields such as new mobile technology, new energy, new materials, and high-end equipment from state-owned enterprises [1] Group 2 - The top ten weighted stocks in the index include China Telecom (9.94%), Hikvision (9.38%), China Mobile (9.3%), CRRC (7.34%), China Unicom (6.6%), China Shipbuilding (5.97%), Three Gorges Energy (5.35%), China Heavy Industry (3.59%), Baosteel (3.43%), and SMIC (2.99%) [1] - The index's holdings are primarily listed on the Shanghai Stock Exchange (68.55%) and the Shenzhen Stock Exchange (31.45%) [1] Group 3 - The industry composition of the index shows that information technology accounts for 30.35%, communication services for 29.67%, industrials for 24.19%, materials for 7.73%, utilities for 5.54%, healthcare for 2.03%, and consumer staples for 0.49% [2] - The index samples are adjusted semi-annually, with adjustments occurring on the next trading day after the second Friday of June and December each year [2] - Weight factors are adjusted in line with sample changes, and temporary adjustments may occur under special circumstances [2]