鑫科材料龙虎榜数据（12月20日）

Group 1 - The stock of Xinke Materials (600255) increased by 0.73% with a trading volume of 3.961 billion yuan and a daily fluctuation of 17.80% [1] - The stock was listed on the Shanghai Stock Exchange's "Dragon and Tiger List" due to its daily fluctuation of 17.80% and turnover rate of 51.69% [2] - The net buying by brokerage seats totaled 53.2382 million yuan on that day [2]