Suzhou Centec (SH:688702) Xin Lang Cai Jing·2025-12-30 01:45Group 1 - The core point of the article highlights the performance and market position of Shengke Communication, which saw a decline of 1.18% in its stock price, currently at 138.70 yuan per share, with a total market capitalization of 56.867 billion yuan [1] - Shengke Communication, established on January 31, 2005, specializes in the research, design, and sales of Ethernet switching chips and related products, with its main revenue sources being Ethernet switching chips (72.43%), Ethernet switching chip modules (11.94%), Ethernet switches (10.48%), customized solutions and others (3.18%), and licensing (1.97%) [1] Group 2 - From the perspective of major circulating shareholders, Southern Fund's Southern CSI 500 ETF (510500) reduced its holdings by 52,000 shares in the third quarter, now holding 1.8064 million shares, which represents 0.89% of the circulating shares, resulting in an estimated floating loss of approximately 2.9806 million yuan [2] - The Southern CSI 500 ETF, established on February 6, 2013, has a current scale of 140.098 billion yuan, with a year-to-date return of 32.01% and a one-year return of 28.13%, ranking 1580 out of 4195 and 1661 out of 4179 respectively [2]