Zheng Xing Xing Ye Ri Bao·2025-10-13 12:45Core Insights - The advertising and marketing sector experienced a decline of 1.9% on October 13, with Zitian Tui leading the drop [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] Stock Performance - Zitian Tui (300280) saw a significant drop of 13.16%, closing at 0.33, with a trading volume of 317,200 shares and a turnover of 11.12 million yuan [2] - Other notable declines included Yidian Tianxia (301171) down 6.14% and Yaowang Technology (002291) down 3.48% [2] - The overall advertising and marketing sector had a net outflow of 402 million yuan from institutional investors, while retail investors saw a net inflow of 514 million yuan [2][3] Fund Flow Analysis - Among individual stocks, Fenzhong Media (002027) had a net inflow of 57.55 million yuan from institutional investors, while it experienced a net outflow of 97.98 million yuan from retail investors [3] - Zitian Tui (300280) had a net outflow of 1.36 million yuan from institutional investors, but a net inflow of 52.40 million yuan from retail investors [3] - The overall trend indicates a shift in investment behavior, with retail investors showing resilience amidst institutional selling [2][3]