工程咨询服务板块9月19日涨0.83%，华建集团领涨，主力资金净流入1.34亿元

Core Insights - The engineering consulting services sector saw a rise of 0.83% on September 19, with Huajian Group leading the gains [1] - The Shanghai Composite Index closed at 3820.09, down 0.3%, while the Shenzhen Component Index closed at 13070.86, down 0.04% [1] Sector Performance - Huajian Group (600629) closed at 19.25, up 7.00% with a trading volume of 954,300 shares and a transaction value of 1.849 billion [1] - Tongji Technology (600846) closed at 66.00, up 5.58% with a trading volume of 245,800 shares and a transaction value of 339 million [1] - Qingduan Technology (836208) closed at 27.99, up 3.51% with a trading volume of 22,100 shares and a transaction value of 60.77 million [1] - Other notable performers include China Ruilin (603257) up 2.58% and Deepwater Planning Institute (301038) up 2.35% [1] Capital Flow - The engineering consulting services sector experienced a net inflow of 134 million from institutional investors, while retail investors saw a net outflow of 178 million [2][3] - Huajian Group had a net inflow of 111 million from institutional investors, while retail investors had a net outflow of 116 million [3] - Other companies like Huayang International (002949) and Tongji Technology (600846) also saw significant net inflows from institutional investors [3]