中字头股票午后拉升，中铁装配涨超10%

Group 1 - The core viewpoint is that stocks related to state-owned enterprises are experiencing significant gains in the afternoon trading session, indicating a positive market sentiment towards these companies [1] - China Railway Construction (中铁装配, 300374) saw an increase of over 10%, highlighting strong investor interest [1] - Other companies such as China Shipbuilding Emergency (中船应急, 300527), China Xidian (中国西电, 601179), China Coal Energy (中煤能源, 601898), COSCO Shipping Holdings (中远海控, 601919), and China Railway (中国中铁, 601390) also experienced notable price increases [1] Group 2 - There is a notable influx of dark pool funds into these stocks, suggesting increased institutional interest and potential for further price movements [2]