Zheng Xing Xing Ye Ri Bao·2026-01-16 08:56Core Insights - The professional services sector experienced a slight increase of 0.01% on January 16, with Electric Science Institute leading the gains [1] - The Shanghai Composite Index closed at 4101.91, down 0.26%, while the Shenzhen Component Index closed at 14281.08, down 0.18% [1] Performance Summary - Electric Science Institute (300215) saw a closing price of 8.16, with a significant increase of 20.00% and a trading volume of 809,400 shares [1] - West High Institute (688334) closed at 25.06, up 19.50%, with a trading volume of 313,600 shares [1] - National Achievement Testing (301289) closed at 63.55, up 5.04%, with a trading volume of 33,200 shares [1] - Other notable performers include Victory Nano (688757) with a 4.12% increase, and Broadcasting Measurement (002967) with a 4.01% increase [1] Capital Flow Analysis - The professional services sector saw a net inflow of 58.26 million yuan from institutional investors, while retail investors experienced a net outflow of 33.14 million yuan [2] - Electric Science Institute had a net inflow of 18.9 million yuan from institutional investors, representing 30.20% of its total trading volume [3] - West High Institute experienced a net inflow of 6.88 million yuan from institutional investors, with a net outflow of 39.03 million yuan from retail investors [3]