The China Shanghai Composite Index experienced a decline of 1.26% today, reflecting a broader trend as it has fallen by 1.37% over the past 30 days. This downturn is indicative of a challenging market environment, with a significant number of stocks underperforming. In terms of market performance, the advance-decline ratio across all market capitalizations shows 1,423 stocks advancing compared to 3,513 declining, resulting in a ratio of 0.41. Large-cap stocks fared particularly poorly, with only 213 advancing against 1,102 declining, yielding a ratio of 0.19. Mid-cap stocks showed a slightly better performance with 296 advancing and 853 declining, while small-cap stocks had 673 advancing versus 1,195 declining, resulting in a ratio of 0.56. Among the notable performers, Beijing Enlight Media Co., Ltd. led large-cap stocks with a return of 15.39%, while Broadex Technologies Co., Ltd. lagged with a return of -11.24%. In the mid-cap sector, Shenyang Fortune Precision Equipment Co., Ltd. achieved an 11.11% return, while Tongding Interconnection Information Co., Ltd. fell by 10.01%. The small-cap segment saw Shenzhen Etmade Automatic Equipment Co., Ltd. rise by 20%, contrasting with Cubic Digital Technology Co., Ltd., which dropped by 20.09%.