Zheng Xing Xing Ye Ri Bao·2026-01-22 09:01Group 1: Market Performance - The communication services sector increased by 1.34% on January 22, with Guoan Co. leading the gains [1] - The Shanghai Composite Index closed at 4122.58, up 0.14%, while the Shenzhen Component Index closed at 14327.05, up 0.5% [1] Group 2: Individual Stock Performance - Guoan Co. (000839) closed at 2.97, rising by 10.00% with a trading volume of 1.4044 million shares and a transaction value of 410 million yuan [1] - Zhongbei Communication (603220) also rose by 10.00%, closing at 25.30 with a trading volume of 357,900 shares and a transaction value of 878 million yuan [1] - Other notable performers include Erli San (002467) with a 6.26% increase, closing at 6.79, and Sanwei Communication (002115) with a 6.25% increase, closing at 14.27 [1] Group 3: Capital Flow Analysis - The communication services sector saw a net inflow of 1.809 billion yuan from institutional investors, while retail investors experienced a net outflow of 1.305 billion yuan [2] - Major stocks like Runze Technology (300442) had a net inflow of 933 million yuan from institutional investors, but a net outflow of 640 million yuan from retail investors [3] - Guoan Co. (000839) had a significant net inflow of 1.81 billion yuan from institutional investors, while retail investors saw a net outflow of 886 million yuan [3]