Zheng Xing Xing Ye Ri Bao·2025-12-31 09:07Group 1 - The professional services sector increased by 0.33% on December 31, with Beijing Human Resources leading the gains [1] - The Shanghai Composite Index closed at 3968.84, up 0.09%, while the Shenzhen Component Index closed at 13525.02, down 0.58% [1] - Key stocks in the professional services sector showed varied performance, with Beijing Human Resources closing at 18.34, up 3.62%, and other notable stocks like Guolan Testing and Steel Research Nake also showing positive gains [1] Group 2 - The professional services sector experienced a net outflow of 225 million yuan from institutional investors, while retail investors saw a net inflow of 220 million yuan [2] - The trading volume and turnover for key stocks varied, with notable transactions such as Beijing Human Resources achieving a turnover of 174 million yuan [1][2] - The data indicates a mixed sentiment in the market, with institutional investors pulling back while retail investors remained active [2][3]