南大光电涨2.04%，成交额4.43亿元，主力资金净流入223.70万元

Core Viewpoint - Nanda Optoelectronics has shown a positive stock performance with a year-to-date increase of 9.92% and a recent market capitalization of 24.232 billion yuan, indicating strong investor interest and potential growth in the electronic materials sector [1][2]. Financial Performance - For the first half of 2025, Nanda Optoelectronics reported a revenue of 1.229 billion yuan, reflecting a year-on-year growth of 9.48%, while the net profit attributable to shareholders was 208 million yuan, up 16.30% compared to the previous year [2]. - Cumulative cash dividends since the A-share listing amount to 507 million yuan, with 293 million yuan distributed over the last three years [3]. Shareholder Information - As of August 31, 2025, the number of shareholders increased to 105,500, a rise of 5.97%, while the average number of circulating shares per person decreased by 5.63% to 6,222 shares [2]. - Major institutional shareholders include E Fund's ChiNext ETF and Southern CSI 500 ETF, with notable increases in holdings, indicating growing institutional interest [3]. Market Activity - On September 12, Nanda Optoelectronics' stock price rose by 2.04% to 35.06 yuan per share, with a trading volume of 443 million yuan and a turnover rate of 1.95% [1]. - The stock has experienced a 1.80% increase over the last five trading days and a 16.09% increase over the past 60 days, showcasing positive momentum in the market [1]. Business Overview - Nanda Optoelectronics, established on December 28, 2000, specializes in the production, research, and sales of advanced electronic materials, with applications in integrated circuits, flat panel displays, LEDs, third-generation semiconductors, photovoltaics, and semiconductor lasers [1]. - The company's revenue composition includes specialty gas products (60.95%), precursor materials (27.80%), and other products (7.02% and 4.23%) [1]. Industry Classification - Nanda Optoelectronics is classified under the electronic chemicals sector, specifically in electronic chemicals II and III, with involvement in key concepts such as photoresists, specialty gases, and gallium nitride [1].