GRIAM(SH:600206) Jin Rong Jie·2025-07-15 15:07Group 1 - The core index, the China Securities National New Central Enterprise Small Cap Index, experienced a decline of 1.28%, closing at 1085.38 points with a trading volume of 59.204 billion yuan [1] - Over the past month, the index has increased by 7.63%, by 13.11% over the last three months, and by 10.42% year-to-date [1] - The index is customized by Guoxin Investment Co., Ltd., selecting 200 smaller listed companies from state-owned enterprises under the State-owned Assets Supervision and Administration Commission to reflect the overall performance of small-cap central enterprises [1] Group 2 - The top ten weighted stocks in the index include Aerospace Rainbow (1.78%), Inner Mongolia First Machinery (1.59%), Guangsheng Nonferrous Metals (1.35%), and others, with the weights of the top ten stocks ranging from 1.1% to 1.78% [1] - The market capitalization distribution shows that the Shanghai Stock Exchange accounts for 50.04% and the Shenzhen Stock Exchange accounts for 49.96% of the index [1] - The industry composition of the index includes 37.94% in industrials, 17.71% in materials, and 13.71% in information technology, among others [2] Group 3 - The index samples are adjusted semi-annually, with adjustments implemented on the next trading day following the second Friday of June and December each year [2] - Weight factors are generally fixed until the next scheduled adjustment, with special circumstances allowing for temporary adjustments [2] - Companies that are delisted or undergo mergers, acquisitions, or splits are handled according to the calculation and maintenance guidelines [2]