有研硅跌2.17%，成交额5543.45万元，主力资金净流出702.00万元

Core Viewpoint - The stock of Youyan Silicon has experienced fluctuations, with a recent decline of 2.17% on November 17, 2023, and a year-to-date increase of 20.28% [1] Financial Performance - For the period from January to September 2025, Youyan Silicon reported revenue of 747 million yuan, a year-on-year decrease of 3.43%, and a net profit attributable to shareholders of 156 million yuan, down 19.81% year-on-year [2] - Cumulative cash dividends since the A-share listing amount to 162 million yuan [3] Shareholder Information - As of September 30, 2025, the number of shareholders for Youyan Silicon increased by 7.44% to 22,000, while the average circulating shares per person decreased by 6.93% to 23,057 shares [2] - The top ten circulating shareholders include notable entities such as the Harvest SSE STAR Chip ETF and Hong Kong Central Clearing Limited, with some new entrants and reductions in holdings among existing shareholders [3] Stock Performance - As of November 17, 2023, Youyan Silicon's stock price was 13.52 yuan per share, with a market capitalization of 16.868 billion yuan [1] - The stock has shown a 1.02% decline over the last five trading days, a 9.39% increase over the last 20 days, and an 11.09% increase over the last 60 days [1] Business Overview - Youyan Silicon, established on June 21, 2001, and listed on November 10, 2022, specializes in the research, production, and sales of semiconductor materials [1] - The company's main revenue sources include semiconductor silicon wafers (61.48%), silicon materials for etching equipment (29.55%), and other segments [1] Industry Classification - Youyan Silicon is classified under the electronic-semiconductor-semiconductor materials sector and is part of various concept sectors including mid-cap, margin trading, and specialized innovation [1]