轨交设备板块12月31日涨0.21%，雷尔伟领涨，主力资金净流出6113.41万元

Core Viewpoint - The rail transit equipment sector experienced a slight increase of 0.21% on December 31, with Lei Erwei leading the gains, while the Shanghai Composite Index rose by 0.09% and the Shenzhen Component Index fell by 0.58% [1] Group 1: Market Performance - The closing price of Lei Erwei was 22.58, with a significant increase of 8.77% and a trading volume of 99,700 shares, resulting in a transaction value of 218 million yuan [1] - Other notable performers included Shidai Electric at 51.29, up 2.76%, and Zhonghe Technology at 8.98, up 2.75% [1] - The overall trading volume in the rail transit equipment sector showed varied performance, with some stocks experiencing declines [2] Group 2: Capital Flow - The rail transit equipment sector saw a net outflow of 61.13 million yuan from institutional investors, while retail investors contributed a net inflow of 29.52 million yuan [2] - Lei Erwei had a net inflow of 14.14 million yuan from institutional investors, but a net outflow of 20.21 million yuan from retail investors [3] - Other companies like Zhonghe Technology and Gongda Gaoke also experienced mixed capital flows, indicating varied investor sentiment across the sector [3]