房屋建设板块9月1日跌0.39%，高新发展领跌，主力资金净流出4.14亿元

Group 1 - The housing construction sector experienced a decline of 0.39% on September 1, with high-tech development leading the drop [1] - The Shanghai Composite Index closed at 3875.53, up 0.46%, while the Shenzhen Component Index closed at 12828.95, up 1.05% [1] Group 2 - On the same day, the housing construction sector saw a net outflow of 414 million yuan from main funds, while retail investors contributed a net inflow of 427 million yuan [2] - The table provided shows various companies' fund flows, with notable outflows from companies like 重庆建工 (Chongqing Construction) and 高新发展 (High-tech Development) [2] - Specific fund flow data indicates that 龙元建设 (Longyuan Construction) had a net inflow of 2.67 million yuan from main funds, while 陕建股份 (Shaanxi Construction) experienced a significant outflow of 30.81 million yuan [2]