Jin Rong Jie·2025-07-09 08:10Group 1 - The A-share market's three major indices closed mixed, with the STAR Market 50 Index (STAR 50) down by 0.89% to 983.11 points, with a trading volume of 20.414 billion yuan [1] - The STAR 50 Index has seen a slight increase of 0.03% over the past month, a rise of 5.52% over the past three months, and a year-to-date increase of 0.30% [1] - The STAR 50 Index consists of 50 securities from the STAR Market with high market capitalization and liquidity, reflecting the overall performance of representative STAR enterprises [1] Group 2 - The top ten weighted stocks in the STAR 50 Index include: SMIC (10.33%), Haiguang Information (8.51%), Cambricon (7.57%), Lattice Semiconductor (6.34%), Zhongwei Company (5.39%), United Imaging (4.23%), Kingsoft Office (4.22%), Transsion Holdings (2.35%), Ninebot (2.26%), and Chipone (2.19%) [1] - The STAR 50 Index is entirely composed of stocks listed on the Shanghai Stock Exchange, with a sector breakdown showing 68.83% in Information Technology, 11.80% in Healthcare, 11.66% in Industrials, 4.39% in Consumer Discretionary, 2.66% in Materials, and 0.66% in Consumer Staples [2] - The STAR 50 Index undergoes quarterly adjustments, with changes implemented on the next trading day following the second Friday of March, June, September, and December, with a maximum adjustment of 10% [2]