电力板块12月17日涨0.18%，亨通股份领涨，主力资金净流出1.81亿元

Group 1 - The electric power sector increased by 0.18% compared to the previous trading day, with Hengtong Optic-Electric leading the gains [1] - 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] - A table detailing the individual stock performance within the electric power sector was provided [1] Group 2 - In terms of capital flow, the electric power sector experienced a net outflow of 181 million yuan from main funds and a net outflow of 264 million yuan from speculative funds, while retail investors contributed a net inflow of 446 million yuan [2] - A table showing the capital flow for individual stocks in the electric power sector was included [2]