贵金属板块12月17日涨3.35%，湖南白银领涨，主力资金净流入1.54亿元

Group 1 - The precious metals sector increased by 3.35% compared to the previous trading day, with Hunan Silver 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] - The net inflow of main funds into the precious metals sector was 154 million yuan, while retail funds experienced a net outflow of 61.74 million yuan [2] Group 2 - The main funds showed a significant net inflow, indicating strong institutional interest in the precious metals sector [2] - Retail investors, however, exhibited a net outflow, suggesting a cautious sentiment among individual investors [2]