SMEI(SZ:300456) Xin Lang Cai Jing·2025-12-19 06:15Group 1 - The core point of the news is that Saiwei Electronics experienced a decline of 5.02% in its stock price, reaching 62.38 yuan per share, with a trading volume of 5.199 billion yuan and a turnover rate of 13.58%, resulting in a total market capitalization of 45.675 billion yuan [1] - Saiwei Electronics, established on May 15, 2008, and listed on May 14, 2015, is located in Beijing and specializes in MEMS process development, wafer manufacturing, GaN epitaxial material growth, and chip design [1] - The revenue composition of Saiwei Electronics includes 54.30% from MEMS wafer manufacturing, 39.14% from MEMS process development, 4.90% from other sources, and 1.67% from semiconductor equipment [1] Group 2 - From the perspective of the top ten circulating shareholders, Southern Fund's Southern CSI 1000 ETF (512100) reduced its holdings by 55,500 shares in the third quarter, now holding 4.6861 million shares, which accounts for 0.78% of the circulating shares [2] - The estimated floating loss for Southern CSI 1000 ETF today is approximately 15.4643 million yuan [2] - The Southern CSI 1000 ETF was established on September 29, 2016, with a current scale of 76.63 billion yuan, yielding 23.72% this year, ranking 1988 out of 4197 in its category [2]