Group 1 - The core point of the news is that Zhongwei Semiconductor Equipment Co., Ltd. experienced a stock decline of 5.01%, with a current share price of 350.13 yuan and a total market capitalization of 219.23 billion yuan [1] - The company specializes in the research, production, and sales of high-end semiconductor equipment, with its main business revenue composition being 86.17% from specialized equipment, 12.84% from spare parts, and 0.99% from other sources [1] Group 2 - Longsheng Fund has a significant holding in Zhongwei Company, with its Longsheng Tongyi Growth Return Mixed Fund (LOF) reducing its position by 859 shares in the fourth quarter, now holding 11,600 shares, which represents 2.55% of the fund's net value [2] - The fund has reported a floating loss of approximately 213,600 yuan due to this reduction [2] - The Longsheng Tongyi Growth Return Mixed Fund (LOF) has a total scale of 124 million yuan, with a year-to-date return of 9.97% and a one-year return of 41.29% [2]