Zheng Xing Xing Ye Ri Bao·2025-12-29 09:02Core Viewpoint - The communication services sector experienced a decline of 1.09% on December 29, with ST Tongmai leading the losses, while the Shanghai Composite Index rose slightly by 0.04% [1]. Group 1: Market Performance - The Shanghai Composite Index closed at 3965.28, up 0.04% [1]. - The Shenzhen Component Index closed at 13537.1, down 0.49% [1]. - The communication services sector saw a net outflow of 994 million yuan from major funds, while retail investors contributed a net inflow of 626 million yuan [2]. Group 2: Individual Stock Performance - Jida Communication (300597) closed at 9.54, up 4.26% with a trading volume of 258,600 shares and a turnover of 247 million yuan [1]. - ST Tongmai (603559) closed at 7.29, down 4.95% with a trading volume of 22,200 shares and a turnover of 16.26 million yuan [2]. - The top gainers in the communication services sector included Jida Communication and ST Yitong, with respective increases of 4.26% and 3.35% [1][2]. Group 3: Fund Flow Analysis - Major funds showed a net inflow of 46.24 million yuan into Runze Technology (300442), while retail investors had a net outflow of 24.86 million yuan [3]. - Jida Communication (300597) had a net inflow of 13.11 million yuan from major funds, but a net outflow of 15.94 million yuan from retail investors [3]. - The overall fund flow indicates a mixed sentiment among different investor types within the communication services sector [2][3].