专业工程板块10月23日涨0.03%，圣晖集成领涨，主力资金净流出3.39亿元

Core Insights - The professional engineering sector experienced a slight increase of 0.03% on October 23, with Shenghui Integration leading the gains [1] - The Shanghai Composite Index closed at 3922.41, up 0.22%, while the Shenzhen Component Index also rose by 0.22% to 13025.45 [1] Stock Performance Summary - Shenghui Integration (603163) saw a significant rise of 10.01%, closing at 46.59 with a trading volume of 54,300 shares and a turnover of 246 million [1] - Other notable gainers included Shikong Technology (605178) with a 9.99% increase, closing at 39.41, and Zhitex New Materials (300986) which rose by 4.72% to 12.21 [1] - Conversely, Zhonghua Rock and Soil (002542) experienced the largest decline at 5.83%, closing at 4.20, with a trading volume of 3.7388 million shares and a turnover of 1.654 billion [2] Capital Flow Analysis - The professional engineering sector saw a net outflow of 339 million from institutional investors, while retail investors contributed a net inflow of 200 million [2] - Notably, Shenghui Integration had a net inflow of 60.77 million from institutional investors, representing 24.69% of its trading volume [3] - In contrast, Zhonghua Chemical (601117) experienced a net inflow of 47.51 million from institutional investors, but also saw significant outflows from retail investors [3]