Core Insights - The engineering consulting services sector saw an increase of 0.97% on September 15, with Huajian Group leading the gains [1] - The Shanghai Composite Index closed at 3860.5, down 0.26%, while the Shenzhen Component Index closed at 13005.77, up 0.63% [1] Sector Performance - Huajian Group (600629) closed at 17.18, up 9.99% with a trading volume of 629,900 shares and a transaction value of 1.059 billion [1] - Youan Design (300983) closed at 23.25, up 7.14% with a trading volume of 36,500 shares and a transaction value of 83.3674 million [1] - Huatu Chuanxie (300492) closed at 77.00, up 7.09% with a trading volume of 40,700 shares and a transaction value of 307 million [1] - Other notable performers include Shanshui Bide (300844) up 3.37%, Shanghai Jianke (603153) up 2.49%, and Huashe Group (603018) up 2.19% [1] Fund Flow Analysis - The engineering consulting services sector experienced a net outflow of 330 million from institutional investors, while retail investors saw a net inflow of 281 million [2] - The sector's overall fund flow indicates a mixed sentiment, with institutional investors pulling back while retail investors are more active [2] Individual Stock Fund Flow - Shanghai Jianke (603153) had a net outflow of 13.9475 million from institutional investors, while retail investors contributed a net inflow of 2.45666 million [3] - Huashe Group (603018) saw a net inflow of 9.5894 million from institutional investors, but a net outflow of 8.9502 million from retail investors [3] - Other stocks like Huatu Shanding (300492) and Youan Design (300983) also showed varied fund flows, indicating differing investor sentiments across the sector [3]