铁路公路板块1月5日跌0.56%，海汽集团领跌，主力资金净流出2.89亿元

Market Overview - The railway and highway sector experienced a decline of 0.56% on January 5, with Haikong Group leading the losses [1] - The Shanghai Composite Index closed at 4023.42, up 1.38%, while the Shenzhen Component Index closed at 13828.63, up 2.24% [1] Stock Performance - Key stocks in the railway and highway sector showed varied performance, with Jinjiang Online closing at 15.47, up 1.78%, and Haikong Group closing at 24.96, down 8.07% [1][2] - The trading volume for Jinjiang Online was 125,700 shares, with a transaction value of 194 million yuan, while Haikong Group had a trading volume of 303,900 shares [1][2] Capital Flow - The railway and highway sector saw a net outflow of 289 million yuan from institutional investors, while retail investors contributed a net inflow of 179 million yuan [2] - The capital flow data indicates that Jinjiang Online had a net inflow of 30.01 million yuan from institutional investors, while it faced a net outflow from retail investors [3]