Jin Rong Jie·2025-07-21 13:37Core Points - The China Securities Automotive Semiconductor Industry Index has shown a positive trend, with a 4.05% increase over the past month, 1.71% over the past three months, and a 5.76% increase year-to-date [1] - The index comprises up to 50 listed companies involved in providing semiconductor materials, equipment, and products for the automotive electrification and intelligence sectors [1] - The index is based on a starting point of 1000.0 points as of December 30, 2016 [1] Index Holdings - The top ten weighted companies in the index include: Northern Huachuang (4.92%), Changdian Technology (4.74%), OmniVision Technologies (4.71%), Zhaoyi Innovation (4.68%), Zhongwei Company (4.66%), Unisoc (4.46%), Sanan Optoelectronics (4.24%), Rockchip (3.3%), Wingtech Technology (3.14%), and Tongfu Microelectronics (3.05%) [1] - The index's market segment distribution shows that the Shanghai Stock Exchange accounts for 72.40%, while the Shenzhen Stock Exchange accounts for 27.60% [1] Industry Composition - In terms of industry composition, integrated circuits represent 58.41%, semiconductor materials and equipment account for 24.91%, discrete devices make up 9.30%, optoelectronics comprise 4.24%, and electronic terminals and components constitute 3.14% [2] - The index samples are adjusted biannually, with adjustments occurring 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]