GRINM Semiconductor Materials (SH:688432) Xin Lang Cai Jing·2026-01-16 06:07Group 1 - The core point of the article highlights the recent performance of Youyan Silicon, which saw a 5.08% increase in stock price, reaching 14.48 CNY per share, with a trading volume of 277 million CNY and a turnover rate of 1.57%, resulting in a total market capitalization of 18.104 billion CNY [1] - Youyan Semiconductor Silicon Materials Co., Ltd. is based in Beijing and was established on June 21, 2001, with its listing date on November 10, 2022. The company's main business involves the research, production, and sales of semiconductor materials [1] - The revenue composition of Youyan Silicon 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 - From the perspective of the top ten circulating shareholders of Youyan Silicon, data shows that a fund under Southern Fund ranks among the top shareholders. The Southern CSI 1000 ETF (512100) reduced its holdings by 39,200 shares in the third quarter, now holding 3.4202 million shares, which accounts for 0.67% of the circulating shares [2] - The Southern CSI 1000 ETF (512100) was established on September 29, 2016, with a latest scale of 76.63 billion CNY. Year-to-date returns are 8.51%, ranking 1463 out of 5531 in its category; over the past year, returns are 44.65%, ranking 1681 out of 4215 [2] - The fund manager of Southern CSI 1000 ETF (512100) is Cui Lei, who has a cumulative tenure of 7 years and 72 days, with total fund assets of 122.76 billion CNY. The best fund return during the tenure is 234.52%, while the worst return is -15.93% [2]