小金属板块12月9日跌1.1%，锡业股份领跌，主力资金净流出6.83亿元

Group 1 - The small metal sector experienced a decline of 1.1% on December 9, with Xiyegongye Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3909.52, down 0.37%, while the Shenzhen Component Index closed at 13277.36, down 0.39% [1] - A table detailing the individual stock performance within the small metal sector was provided [1] Group 2 - On the same day, the small metal sector saw a net outflow of 683 million yuan from main funds, while speculative funds had a net inflow of 116 million yuan, and retail investors contributed a net inflow of 566 million yuan [2] - A table showing the fund flow for individual stocks in the small metal sector was included [2]