The Shanghai and Shenzhen 300 index conducted regular sample adjustments in the first half of the year, and the new quality of production continued to improve.

On May 29, China Securities Index Co., Ltd. announced that it will adjust the samples of the Shanghai and Shenzhen 300, CSI 500, CSI 1000, CSI A50, CSI A100, and CSI A500 indices. This adjustment is a regular routine adjustment of index samples, and the regular adjustment plan will officially take effect after the market closes on June 12. After this sample adjustment, the number and weight of samples in the information technology, communication services, and industrial sectors have generally increased. The industry allocation of A-series indices is more balanced compared to traditional broad-based indices, and the new quality productivity content has been further enhanced. This adjustment will help the index play a role in serving national strategies and guiding resource allocation.