美股异动丨J-Star Holding跌64.63%，为跌幅最大的中概股

Group 1 - The top five Chinese concept stocks that experienced the largest declines in closing prices are J-Star Holding, Donis, Yipin Weike, Youjia Insurance, and Heitong Technology, with declines ranging from 18.83% to 64.63% [1] - J-Star Holding saw a significant drop of 64.63%, closing at 2.030 with a trading volume of 12.586 million [1] - Donis experienced a decline of 35.21%, closing at 10.250 with a trading volume of 8.423 million [1] Group 2 - Yipin Weike fell by 26.18%, closing at 0.3118 with a trading volume of 0.7175 million [1] - Youjia Insurance decreased by 23.18%, closing at 2.850 with a trading volume of 0.9639 million [1] - Heitong Technology dropped by 18.83%, closing at 6.080 with a trading volume of 2.1212 million [1]