10月20日，捷捷微电涨5.32%，截至发稿，报31.68元/股，成交5.39亿元，换手率2.39%，总市值263.60 亿元。 资料显示，江苏捷捷微电子股份有限公司位于江苏省启东市经济开发区钱塘江路3000号，成立日期1995 年3月29日，上市日期2017年3月14日，公司主营业务涉及功率半导体分立器件的研发、设计、生产和销 售。主营业务收入构成为：功率半导体器件67.12%，功率半导体芯片30.73%，其他(补充)1.42%，功率 器件封测0.73%。 从捷捷微电十大流通股东角度 数据显示，南方基金旗下1只基金位居捷捷微电十大流通股东。南方中证500ETF（510500）二季度新进 十大流通股东，持有股数738.14万股，占流通股的比例为1.02%。根据测算，今日浮盈赚取约1181.02万 元。 南方中证500ETF（510500）成立日期2013年2月6日，最新规模1134.38亿。今年以来收益24.28%，同类 排名1813/4219；近一年收益31.22%，同类排名1616/3866；成立以来收益135.8%。 南方中证500ETF（510500）基金经理为罗文杰。 截至发稿，罗文杰累计任职时间1 ...

Core Viewpoint - The stock price of Jiejie Microelectronics has experienced fluctuations, with a year-to-date decline of 9.73% and a recent increase in trading activity, indicating potential investor interest amidst mixed performance metrics [1][2]. Company Overview - Jiejie Microelectronics, established on March 29, 1995, and listed on March 14, 2017, is located in Qidong City, Jiangsu Province. The company specializes in the research, design, production, and sales of power semiconductor discrete devices [2]. - The revenue composition of Jiejie Microelectronics includes power semiconductor devices (67.12%), power semiconductor chips (30.73%), other (1.42%), and power device packaging and testing (0.73%) [2]. Financial Performance - For the first half of 2025, Jiejie Microelectronics reported a revenue of 1.6 billion yuan, reflecting a year-on-year growth of 26.77%. The net profit attributable to shareholders was 247 million yuan, marking a 15.35% increase [2]. - The company has distributed a total of 599 million yuan in dividends since its A-share listing, with 237 million yuan distributed over the past three years [3]. Shareholder Information - As of June 30, 2025, the number of shareholders for Jiejie Microelectronics was 94,000, a decrease of 0.55% from the previous period. The average number of tradable shares per shareholder increased by 0.55% to 7,723 shares [2]. - Notable changes in institutional holdings include a reduction in shares held by Hong Kong Central Clearing Limited and the entry of Southern CSI 500 ETF as a new major shareholder [3].

Group 1 - The core point of the news is that Jiangsu Jiejie Microelectronics Co., Ltd. experienced a stock decline of 5.03%, with a current share price of 30.58 yuan and a total market capitalization of 25.445 billion yuan [1] - The company, established on March 29, 1995, specializes in the research, design, production, and sales of power semiconductor discrete devices, with its main business revenue composition being 67.12% from power semiconductor devices, 30.73% from power semiconductor chips, 1.42% from other sources, and 0.73% from packaging and testing of power devices [1] Group 2 - Among the top ten circulating shareholders of Jiejie Microelectronics, the Southern Fund's Southern CSI 500 ETF (510500) entered the list in the second quarter, holding 7.3814 million shares, which accounts for 1.02% of the circulating shares [2] - The Southern CSI 500 ETF has a total scale of 113.438 billion yuan and has achieved a year-to-date return of 28.06%, ranking 1804 out of 4218 in its category [2] Group 3 - The fund manager of Southern CSI 500 ETF is Luo Wenjie, who has a tenure of 12 years and 182 days, with the fund's total asset scale at 138.999 billion yuan [3] - During his tenure, the best fund return was 150%, while the worst return was -47.6% [3]

10月10日，捷捷微电跌5.03%，截至发稿，报31.13元/股，成交6.25亿元，换手率2.72%，总市值259.03 亿元。 南方中证500ETF（510500）成立日期2013年2月6日，最新规模1134.38亿。今年以来收益33.74%，同类 排名1755/4220；近一年收益33.45%，同类排名1667/3852；成立以来收益153.75%。 南方中证500ETF（510500）基金经理为罗文杰。 截至发稿，罗文杰累计任职时间12年175天，现任基金资产总规模1389.99亿元，任职期间最佳基金回报 154.11%， 任职期间最差基金回报-47.6%。 风险提示：市场有风险，投资需谨慎。本文为AI大模型自动发布，任何在本文出现的信息（包括但不 限于个股、评论、预测、图表、指标、理论、任何形式的表述等）均只作为参考，不构成个人投资建 议。 责任编辑：小浪快报 资料显示，江苏捷捷微电子股份有限公司位于江苏省启东市经济开发区钱塘江路3000号，成立日期1995 年3月29日，上市日期2017年3月14日，公司主营业务涉及功率半导体分立器件的研发、设计、生产和销 售。主营业务收入构成为：功率半导体器件67 ...

Core Viewpoint - The stock of Jiejie Microelectronics has shown fluctuations, with a recent increase of 2.03% and a total market capitalization of 25.528 billion yuan, despite a year-to-date decline of 9.79% [1] Financial Performance - For the first half of 2025, Jiejie Microelectronics achieved a revenue of 1.6 billion yuan, representing a year-on-year growth of 26.77%, and a net profit attributable to shareholders of 247 million yuan, up 15.35% [2] - Cumulatively, the company has distributed 599 million yuan in dividends since its A-share listing, with 237 million yuan in the last three years [3] Shareholder Information - As of August 29, 2025, the number of shareholders for Jiejie Microelectronics increased to 98,900, with an average of 7,338 circulating shares per person, a decrease of 1.89% [2] - The top ten circulating shareholders include Hong Kong Central Clearing Limited and Southern CSI 500 ETF, with notable changes in their holdings [3] Stock Performance - The stock has experienced a 0.20% decline over the last five trading days and a 3.91% decline over the last 20 days, while showing a 13.50% increase over the last 60 days [1] Business Overview - Jiejie Microelectronics, established on March 29, 1995, specializes in the research, design, production, and sales of power semiconductor discrete devices, with a revenue composition of 67.12% from power semiconductor devices and 30.73% from power semiconductor chips [1] - The company operates within the semiconductor industry, specifically in the electronic sector focusing on discrete devices, and is involved in various concept sectors including GaN, specialized and innovative enterprises, mid-cap, automotive chips, and semiconductors [1]

Core Insights - The company, JieJie Microelectronics, reported a revenue of 1.6 billion yuan for the first half of 2025, representing a year-on-year growth of 26.77% [1] - The net profit attributable to shareholders reached 247 million yuan, with a year-on-year increase of 15.35% [1] Financial Performance - The net profit margin decreased from 18.03% in the first half of 2024 to 15.43% in 2025 [3] - The gross profit margin also declined from 37.08% to 35.39% [3] - The return on equity (ROE) was 4.22%, down by 1.31 percentage points year-on-year [3] Operational Efficiency - Inventory turnover days increased to 119.51 days, up by 0.86% compared to the first half of 2024, indicating stable inventory management efficiency [5] - The net cash flow from operating activities was 453 million yuan, a year-on-year increase of 1.61% from 292 million yuan in 2024 [5] - The debt-to-asset ratio for the first half of 2025 was 30.89%, a decrease of 9.93 percentage points year-on-year, indicating improved financial structure [5] Institutional Investment - As of the first half of 2025, the number of institutional investors holding JieJie Microelectronics shares dropped to 3, a significant decrease of 96 from 99 in the same period of 2024 [7] - The company's market capitalization peaked at 36.949 billion yuan on October 21, 2024, and currently stands at 27.134 billion yuan, requiring a 36.17% increase in stock price to reach its historical high [7] - The company's technological accumulation and market position in the power semiconductor sector provide a foundation for future development [7]