综合板块12月12日跌0.76%，粤桂股份领跌，主力资金净流出8730.23万元

Group 1 - The comprehensive sector experienced a decline of 0.76% compared to the previous trading day, with Yuegui Co., Ltd. leading the decline [1] - The Shanghai Composite Index closed at 3889.35, up 0.41%, while the Shenzhen Component Index closed at 13258.33, up 0.84% [1] - The table of individual stock performance shows various companies with their closing prices, percentage changes, trading volumes, and transaction amounts [1] Group 2 - The net outflow of main funds in the comprehensive sector was 87.30 million yuan, while retail investors saw a net inflow of 101 million yuan [3] - The table of fund flow for individual stocks indicates the movement of funds among different companies [3]