[Strengthening the background of "specialization, specialization, innovation", the adjustment of the BSE 50 Index sample stocks officially takes effect] September 14th, according to the index compilation plan, the Beijing Stock Exchange and China Securities Index Co., Ltd. will make regular adjustments to the BSE 50 Index sample stocks, which will officially take effect on September 14 (Monday). In this adjustment, the constituent stocks of the Bei Securities 50 Index were transferred to the four stocks of CapitaLand Quartz, Huifeng Diamond, Medela, and Hengdongguang, and at the same time, the four stocks of Zecheng Electronics, Yoshioka Precision, Qingju Technology, and Junchuang Technology were transferred. The targets transferred this time belong to subdivided fields such as semiconductor quartz materials, diamond functional materials, intelligent transportation systems, optical communication passive components, etc., further strengthening the representativeness of the BSE 50 Index for "specialized, special and innovative" enterprises and key links in the industrial chain. The current price-to-earnings ratio of the BSE 50 Index is about 40 times, which is about the fifth percentile in history. Many institutions have judged that the market is in the stage of "raising the bottom and waiting for incremental catalysis".