Zheng Xing Xing Ye Ri Bao·2026-02-03 09:03Group 1 - The professional services sector increased by 2.79% on February 3, with Guangdian Measurement leading the gains [1] - The Shanghai Composite Index closed at 4067.74, up 1.29%, while the Shenzhen Component Index closed at 14127.1, up 2.19% [1] - Key stocks in the professional services sector showed significant price increases, with Guangdian Measurement rising by 6.33% to a closing price of 24.52 [1] Group 2 - The professional services sector experienced a net inflow of 82.0042 million yuan from institutional investors, while retail investors saw a net outflow of 38.7334 million yuan [2] - Major stocks like Huace Testing and Guangdian Measurement had notable net inflows from institutional investors, with Huace Testing receiving 56.1501 million yuan [3] - The overall trading volume and turnover for key stocks in the sector indicate strong market interest, with Huace Testing achieving a turnover of 5.87 billion yuan [1][3]