龙虎榜丨阿特斯20CM涨停，机构净买入9686万元，量化基金净买入1.8亿元

Group 1 - The stock of Arctech (688472.SH) reached a 20% limit up, with a turnover rate of 11.69% and a transaction volume of 2.265 billion yuan [1] - Institutional investors bought a total of 214 million yuan, while three institutions sold 117 million yuan, resulting in a net institutional purchase of 96.86 million yuan [1] - Quantitative funds ranked as the second and third largest buyers and the fourth largest seller, with a net purchase of 180 million yuan [1] Group 2 - The top five buying institutions accounted for 21.68% of the total transaction volume, with a combined purchase amount of 490.97 million yuan [2] - The largest buying institution was an unnamed specialized institution, contributing 130.14 million yuan, which is 5.75% of the total transaction [2] - UBS Securities' Shanghai Garden Shiqiao Road branch was among the top buyers, with a purchase amount of 90.95 million yuan, representing 4.02% of the total transaction [2]