金属新材料板块12月19日涨2.35%，安泰科技领涨，主力资金净流出7941.03万元

Group 1 - The metal new materials sector increased by 2.35% compared to the previous trading day, with Antai Technology leading the gains [1] - The Shanghai Composite Index closed at 3890.45, up 0.36%, while the Shenzhen Component Index closed at 13140.22, up 0.66% [1] Group 2 - In terms of capital flow, the metal new materials sector experienced a net outflow of 79.41 million yuan from main funds, and a net outflow of 167 million yuan from speculative funds, while retail investors saw a net inflow of 247 million yuan [2]