Zheng Xing Xing Ye Ri Bao·2025-09-04 08:56Group 1 - The advertising and marketing sector experienced a decline of 0.63% on September 4, with the InSai Group leading the drop [1][2] - The Shanghai Composite Index closed at 3765.88, down 1.25%, while the Shenzhen Component Index closed at 12118.7, down 2.83% [1] - Notable stock performances included Yuanlong Yatu, which rose by 9.99% to a closing price of 20.47, and InSai Group, which fell by 4.74% to a closing price of 39.80 [1][2] Group 2 - The advertising and marketing sector saw a net outflow of 52.59 million yuan from institutional investors and 67.77 million yuan from retail investors, while retail investors had a net inflow of 120 million yuan [2][3] - Key stocks with significant net inflows included Yuanlong Yatu with a net inflow of 35.6 million yuan from institutional investors, while other stocks like FenZhong Media and YiDian TianXia also showed varying net inflows and outflows [3]