轨交设备板块1月7日跌0.39%，雷尔伟领跌，主力资金净流出2.57亿元

Core Viewpoint - The railway transportation equipment sector experienced a decline of 0.39% on January 7, with Lei Erwei leading the drop, while the Shanghai Composite Index rose by 0.05% and the Shenzhen Component Index increased by 0.06% [1]. Group 1: Market Performance - The closing price of the Shanghai Composite Index was 4085.77, and the Shenzhen Component Index closed at 14030.56 [1]. - The railway transportation equipment sector saw significant individual stock movements, with Jin Chuang Group rising by 5.14% to a closing price of 16.78, and Lei Erwei falling by 6.45% to 24.80 [1][2]. Group 2: Trading Volume and Value - Jin Chuang Group had a trading volume of 200,500 shares and a transaction value of 328 million yuan [1]. - Lei Erwei recorded a trading volume of 193,300 shares with a transaction value of 498 million yuan [2]. Group 3: Capital Flow - The railway transportation equipment sector experienced a net outflow of 257 million yuan from institutional investors, while retail investors saw a net inflow of approximately 91.70 million yuan [2]. - The sector's capital flow indicated that retail investors contributed positively, with a net inflow of 16.6 million yuan from speculative funds [2]. Group 4: Individual Stock Capital Flow - Jin Chuang Group had a net inflow of 29.44 million yuan from institutional investors, while retail investors had a net outflow of 33.10 million yuan [3]. - Tianyi New Material saw a net inflow of 16.08 million yuan from institutional investors, with a net outflow of 26.24 million yuan from retail investors [3].