电机板块12月12日涨0.29%，佳电股份领涨，主力资金净流出2.09亿元

Group 1 - The core viewpoint of the article highlights that the motor sector experienced a slight increase of 0.29% on the previous trading day, with Jia Dian Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3889.35, reflecting an increase of 0.41%, while the Shenzhen Component Index closed at 13258.33, up by 0.84% [1] Group 2 - In terms of capital flow, the motor sector saw a net outflow of 209 million yuan from main funds, while retail investors contributed a net inflow of 382 million yuan [2] - The article provides a detailed table of individual stock performances and capital flows within the motor sector [2]