贸易板块12月9日涨0.51%，五矿发展领涨，主力资金净流入1.12亿元

Group 1 - The trade sector increased by 0.51% compared to the previous trading day, with WISCO leading the gains [1] - The Shanghai Composite Index closed at 3909.52, down 0.37%, while the Shenzhen Component Index closed at 13277.36, down 0.39% [1] - The net inflow of main funds in the trade sector was 112 million yuan, while retail funds experienced a net outflow of 39.92 million yuan [2] Group 2 - The net outflow of speculative funds in the trade sector was 72.52 million yuan [2] - Detailed fund flow data for individual stocks in the trade sector is available in the accompanying table [2]