有研硅股价跌5.08%，嘉实基金旗下1只基金位居十大流通股东，持有885.43万股浮亏损失628.66万元

Core Viewpoint - The stock of Youyan Silicon has experienced a decline of 5.08%, currently trading at 13.26 CNY per share, with a total market capitalization of 16.543 billion CNY [1] Group 1: Company Overview - Youyan Semiconductor Silicon Materials Co., Ltd. was established on June 21, 2001, and listed on November 10, 2022 [1] - The company specializes in the research, production, and sales of semiconductor materials [1] - The revenue composition of the company includes: 61.48% from semiconductor silicon wafers, 29.55% from silicon materials for etching equipment, 6.80% from other sources, and 2.16% from supplementary sources [1] Group 2: Shareholder Information - Among the top ten circulating shareholders of Youyan Silicon, the Jiashi Fund holds a significant position with its Jiashi Shanghai Stock Exchange Sci-Tech Innovation Board Chip ETF (588200) increasing its holdings by 798,000 shares to a total of 8.8543 million shares, representing 1.74% of the circulating shares [2] - The Jiashi Shanghai Stock Exchange Sci-Tech Innovation Board Chip ETF (588200) was established on September 30, 2022, with a latest scale of 27.806 billion CNY [2] - The fund has achieved a year-to-date return of 80.31%, ranking 99 out of 4220 in its category, and a one-year return of 85.94%, ranking 43 out of 3852 [2]