专业工程板块10月13日涨0.3%，上海港湾领涨，主力资金净流入1.38亿元

Core Insights - The professional engineering sector saw a slight increase of 0.3% on October 13, with Shanghai Port leading the gains [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 - Notable gainers in the professional engineering sector included: - Yibanshi (605598) with a closing price of 29.32, up 10.02% on a trading volume of 126,200 shares and a turnover of 361 million yuan [1] - Baili Technology (6565609) closed at 6.72, up 2.60% with a trading volume of 361,800 shares and a turnover of 239 million yuan [1] - Zhitexin Materials (300986) closed at 11.72, up 2.00% with a trading volume of 128,600 shares and a turnover of 148 million yuan [1] - Conversely, some stocks experienced declines: - Shenghui Integration (603163) closed at 43.40, down 4.41% with a trading volume of 21,300 shares and a turnover of approximately 92.48 million yuan [2] - Suante Co. (603098) closed at 14.00, down 3.45% with a trading volume of 84,300 shares and a turnover of approximately 118 million yuan [2] - Jinggong Steel Structure (600496) closed at 3.70, down 3.14% with a trading volume of 384,500 shares and a turnover of approximately 142 million yuan [2] Capital Flow - The professional engineering sector experienced a net inflow of 138 million yuan from institutional investors, while retail investors saw a net inflow of approximately 58.33 million yuan [2][3] - Notable net inflows from institutional investors included: - China Metallurgical Group (601618) with a net inflow of approximately 22.3 million yuan [3] - Shanghai Port (605598) with a net inflow of approximately 71.08 million yuan [3] - Conversely, some stocks faced net outflows from retail investors, such as: - North International (000065) with a net outflow of approximately 13.68 million yuan [3] - Southeast Network Frame (002135) with a net outflow of approximately 6.22 million yuan [3]