捷捷微电股价跌5.03%，南方基金旗下1只基金位居十大流通股东，持有738.14万股浮亏损失1217.93万元

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 31.13 yuan and a total market capitalization of 25.903 billion yuan [1] - The company was established on March 29, 1995, and went public on March 14, 2017, focusing on the research, design, production, and sales of power semiconductor discrete devices [1] - The revenue composition of the company's main business includes power semiconductor devices at 67.12%, power semiconductor chips at 30.73%, other (supplementary) at 1.42%, and power device packaging and testing at 0.73% [1] Group 2 - From the perspective of the top ten circulating shareholders, Southern Fund has a fund that entered the top ten shareholders of Jiejie Microelectronics, holding 7.3814 million shares, which accounts for 1.02% of the circulating shares [2] - The Southern CSI 500 ETF (510500) has a total scale of 113.438 billion yuan and has achieved a return of 33.74% this year, ranking 1755 out of 4220 in its category [2] - The fund manager, Luo Wenjie, has a cumulative tenure of 12 years and 175 days, with the best fund return during his tenure being 154.11% [3]