SMEI(SZ:300456) Xin Lang Cai Jing·2025-12-30 02:20Group 1 - The core point of the news is that Saiwei Electronics has seen a stock price increase of 1.23%, reaching 56.95 yuan per share, with a trading volume of 934 million yuan and a turnover rate of 2.78%, resulting in a total market capitalization of 41.7 billion yuan [1] - Saiwei Electronics, established on May 15, 2008, and listed on May 14, 2015, is primarily engaged in MEMS process development and wafer manufacturing, as well as 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 - The top circulating shareholder of Saiwei Electronics is the Guolian An Semiconductor ETF (512480), which entered the top ten shareholders in the third quarter with 3.5024 million shares, accounting for 0.59% of the circulating shares, and has an estimated floating profit of approximately 2.4167 million yuan [2] - The Guolian An Semiconductor ETF was established on May 8, 2019, with a latest scale of 23.032 billion yuan, achieving a year-to-date return of 45.36% and a one-year return of 38.78% [2] - The fund manager of Guolian An Semiconductor ETF, Huang Xin, has a tenure of 15 years and 263 days, with a total fund asset scale of 42.587 billion yuan, while the other manager, Zhang Zhenyuan, has a tenure of 12 years and 29 days, managing assets of 41.491 billion yuan [3]