铁路公路板块1月8日涨0.08%，三羊马领涨，主力资金净流出3.15亿元

Market Overview - On January 8, the railway and highway sector increased by 0.08% compared to the previous trading day, with San Yang Ma leading the gains [1] - The Shanghai Composite Index closed at 4082.98, down 0.07%, while the Shenzhen Component Index closed at 13959.48, down 0.51% [1] Stock Performance - Notable gainers in the railway and highway sector included: - San Yang Ma (001317) with a closing price of 54.60, up 2.40% on a trading volume of 77,200 shares and a transaction value of 422 million yuan [1] - Jiangxi Changyun (600561) closed at 6.51, up 1.88% with a trading volume of 61,800 shares and a transaction value of 39.86 million yuan [1] - Shentong Metro (600834) closed at 8.52, up 0.95% with a trading volume of 37,200 shares and a transaction value of 31.51 million yuan [1] Fund Flow Analysis - The railway and highway sector experienced a net outflow of 315 million yuan from institutional investors, while retail investors saw a net inflow of 114 million yuan [2] - Key stocks with significant fund flows included: - Shandong Highway (600350) with a net inflow of 7.88 million yuan from institutional investors [3] - Ganyue Highway (600269) with a net inflow of 7.50 million yuan from institutional investors [3] - Jinghu High-Speed Railway (601816) with a net inflow of 6.10 million yuan from institutional investors [3]