NSIG(SH:688126) Jin Rong Jie·2025-06-18 10:09Group 1 - The Shanghai Stock Exchange Sci-Tech Innovation Board Chip Index (Sci-Tech Chip, 000685) opened lower but rose by 1.03% to 1634.56 points, with a trading volume of 20.025 billion yuan [1] - Over the past month, the Sci-Tech Chip Index has decreased by 3.23%, down 11.08% over the last three months, and has seen a slight decline of 0.12% year-to-date [1] - The index includes companies involved in semiconductor materials and equipment, chip design, manufacturing, packaging, and testing, reflecting the overall performance of representative chip industry listed companies on the Sci-Tech Innovation Board [1] Group 2 - The top ten weighted stocks in the Sci-Tech Chip Index are: Haiguang Information (10.39%), SMIC (10.17%), Cambricon (9.74%), Lattice Technology (8.31%), Zhongwei Company (6.81%), Hengxuan Technology (2.86%), Chipone (2.76%), Shanghai Silicon Industry (2.73%), Sitaiwei (2.35%), and Huahai Qingke (2.31%) [1] - The index is composed entirely of companies from the information technology sector, with a 100% representation [2] - The index samples are adjusted quarterly, with adjustments occurring in the second Friday of March, June, September, and December, and weights are fixed until the next scheduled adjustment [2]