轨交设备板块12月17日涨0.66%，科安达领涨，主力资金净流出3658.38万元

Group 1 - The core viewpoint of the news is that the rail transit equipment sector experienced a slight increase of 0.66% on December 17, with Keda leading the gains [1] - On the same day, the Shanghai Composite Index closed at 3870.28, up by 1.19%, while the Shenzhen Component Index closed at 13224.51, up by 2.4% [1] Group 2 - In terms of capital flow, the rail transit equipment sector saw a net outflow of 36.58 million yuan from main funds, while retail investors contributed a net inflow of 40.54 million yuan [2] - The sector also experienced a net outflow of 3.96 million yuan from speculative funds on the same day [2]