AMEC(SH:688012) Xin Lang Cai Jing·2025-09-10 03:05Group 1 - The core viewpoint of the news is the performance and investment interest in Zhongwei Semiconductor Equipment Co., Ltd., which saw a stock price increase of 5.04% to 210.10 CNY per share, with a total market capitalization of 131.55 billion CNY [1] - Zhongwei's main business involves the research, production, and sales of high-end semiconductor equipment, with a revenue composition of 86.17% from specialized equipment, 12.84% from spare parts, and 0.99% from other sources [1] Group 2 - The West Fund's CES Chip Index Enhanced A (014418) has increased its holdings in Zhongwei by 9,535 shares, bringing the total to 131,700 shares, which represents 3.3% of the fund's net value, making it the eighth largest holding [2] - The fund has achieved a year-to-date return of 28.07% and a one-year return of 97.49%, ranking 1291 out of 4223 and 253 out of 3796 respectively [2]