Jin Rong Jie·2025-06-10 08:19Group 1 - The Shanghai Composite Index opened high but closed lower, with the CSI 300 Insurance Index reported at 882.84 points [1] - The CSI 300 Insurance Index has increased by 5.29% over the past month, 6.15% over the past three months, and 2.05% year-to-date [1] - The CSI 300 Index categorizes its 300 sample stocks into 11 primary industries, 35 secondary industries, over 90 tertiary industries, and more than 200 quaternary industries, with the index base date set at December 31, 2007, and a base point of 1000.0 [1] Group 2 - The index samples are adjusted biannually, with adjustments occurring on the next trading day after the second Friday of June and December [2] - Weight factors are generally fixed until the next scheduled adjustment, but can change with temporary adjustments due to sample changes in the CSI 300 Index [2] - Special events affecting a sample company's industry classification will lead to corresponding adjustments in the CSI 300 Industry Index [2]