SMIC(SH:688981) Zhong Guo Jin Rong Xin Xi Wang·2025-09-23 08:32Group 1 - The Sci-Tech Innovation 50 Index opened flat on September 23, then fluctuated and eventually closed down slightly at 1407.30 points, with a decline of 0.10% and an intraday fluctuation of 3.89% [1] - The Sci-Tech Comprehensive Index fell by 0.77% to close at 1645.56 points, with a total trading volume of 290.2 billion [2] - Excluding suspended stocks, the average decline of the remaining 588 stocks on the Sci-Tech Board was 1.07%, with an average turnover rate of 3.88% and a total trading volume of 290.2 billion [2] Group 2 - Among individual stocks, Mengke Pharmaceutical reached the daily limit, showing the highest increase, while Kaipu Cloud dropped by 12.29%, marking the largest decline [3] - In terms of trading volume, SMIC had a trading volume of 18.12 billion, ranking first, while ST Pava had a trading volume of 1.568 million, ranking last [4] - Regarding turnover rates, Zhongke Lanyun had a turnover rate of 31.66%, leading the list, while Longteng Optoelectronics had a turnover rate of 0.28%, ranking last [5]