Zheng Xing Xing Ye Ri Bao·2025-09-30 08:51Core Insights - The professional engineering sector experienced a rise of 2.21% on September 30, with Shikong Technology leading the gains [1] - The Shanghai Composite Index closed at 3882.78, up 0.52%, while the Shenzhen Component Index closed at 13526.51, up 0.35% [1] Stock Performance - Shikong Technology (605178) closed at 35.83, with a gain of 10.01% and a trading volume of 57,600 shares [1] - China Zhongzhi (601618) also saw a significant increase of 10.00%, closing at 3.85 with a trading volume of 4,899,700 shares [1] - Other notable performers included Roman Co. (605289) with a 6.11% increase, and Honglu Steel Structure (002541) with a 5.40% increase [1] Market Capital Flow - The professional engineering sector saw a net inflow of 409 million yuan from institutional investors, while retail investors experienced a net outflow of 262 million yuan [2] - The main stocks with significant net inflows included China Zhongzhi with 426 million yuan and Roman Co. with 77.27 million yuan [3] - Conversely, retail investors showed a net outflow from stocks like China Zhongzhi and Roman Co., indicating a shift in investment behavior [3]