SMEI(SZ:300456) Xin Lang Cai Jing·2025-11-25 02:13Group 1 - The core point of the news is that Saiwei Electronics has seen a significant stock price increase of 31.2% over the past four days, with a current price of 36.98 yuan per share and a market capitalization of 27.077 billion yuan [1] - Saiwei Electronics specializes in MEMS process development, wafer manufacturing, GaN epitaxial material growth, and chip design, with its main revenue sources being MEMS wafer manufacturing (54.30%), MEMS process development (39.14%), and others (4.90%) [1] - The trading volume for Saiwei Electronics reached 2.438 billion yuan, with a turnover rate of 11.47% [1] Group 2 - Southern Fund's Southern CSI 1000 ETF (512100) is among the top ten circulating shareholders of Saiwei Electronics, having reduced its holdings by 55,500 shares in the third quarter, now holding 4.6861 million shares, which is 0.78% of the circulating shares [2] - The Southern CSI 1000 ETF has generated a floating profit of approximately 8.7631 million yuan today and a total of 39.1293 million yuan during the four-day price increase [2] - The Southern CSI 1000 ETF has a total asset size of 76.63 billion yuan and has achieved a year-to-date return of 21.59% [2]