9月4日A股分析：深度回调！沪指跌1.25%失守3800点，主力资金出逃超千亿，半导体、通信设备成重灾区

Market Overview - The Shanghai Composite Index fell by 1.25% to close at 3765.88 points, while the Shenzhen Component Index dropped by 2.83% to 12118.7 points, and the ChiNext Index decreased by 4.25% to 2776.25 points, with total trading volume increasing by 180.171 billion to 2544.257 billion [2] Fund Flow - The main net inflow was negative at -110.00716 billion, with a net ratio of -4.32% - The super large orders saw a net outflow of -68.10688 billion, with a net ratio of -2.68% - Large orders experienced a net outflow of -41.90029 billion, with a net ratio of -1.65% - Medium orders had a net inflow of 9.47395 billion, with a net ratio of 0.37% - Small orders recorded a net inflow of 100.53322 billion, with a net ratio of 3.95% [2] Sector Performance Capital Inflows - The sectors with the highest capital inflows included banks (26.95 billion), commercial retail (18.24 billion), photovoltaic equipment (11.45 billion), securities (7.34 billion), and shipbuilding (6.3 billion) [3] Capital Outflows - The sectors with the most significant capital outflows were semiconductors (-16.816 billion), communication equipment (-11.789 billion), internet services (-9.01 billion), electronic components (-7.95 billion), and software development (-6.598 billion) [3] Price Changes - The sectors with the highest price increases included commercial retail (3.59%), beauty care (2.74%), food and beverage (2.56%), tourism and hotels (2.12%), and household light industry (1.32%) [3] - The sectors with the largest price declines were semiconductors (-5.38%), communication equipment (-3.81%), electronic chemicals (-3.78%), small metals (-3.44%), and aerospace (-3.37%) [3] Concept Stocks - The concept stocks with the most capital inflow were broken net stocks (1.869 billion), duty-free concepts (1.445 billion), pre-made dishes (1.254 billion), community group buying (1.232 billion), and domestic trade circulation (1.015 billion) [2] - The concept stocks with the most capital outflow included margin financing and securities lending (-99.724 billion), FTSE Russell (-62.965 billion), Shenzhen Stock Connect (-59.749 billion), MSCI China (-44.745 billion), and Shenzhen 500 (-43.393 billion) [3]