证券时报·2025-08-20 12:44Core Viewpoint - Since August, the A-share market has entered a new upward trend, with nearly 90% of stocks rising, indicating a broad-based rally [2][3][4]. Group 1: Market Performance - The Shanghai Composite Index has increased by 5.40%, the Shenzhen Component Index by 8.33%, the ChiNext Index by 12%, and the Sci-Tech 50 Index by 9.57% since August [3]. - Approximately 4,800 A-shares have risen since August, accounting for nearly 90% of all A-shares, with around 600 stocks increasing by over 20% [3]. - In comparison to July, where the Shanghai Composite Index rose by 3.74% and the Shenzhen Component Index by 5.20%, the performance in August has been stronger [3]. Group 2: Characteristics of Strong Stocks - Among the stocks that have risen over 50% since August, 32 are from the main board, 23 from the ChiNext, 13 from the Sci-Tech board, and 6 from the Beijing Stock Exchange [6]. - The mechanical equipment sector has the highest number of strong stocks, with 17, followed by the electronics sector with 11, and both the pharmaceutical and computer sectors with 8 each [6]. - More than half of the stocks with over 50% gains have a market capitalization of less than 10 billion yuan, indicating a predominance of small and mid-cap stocks [6]. Group 3: Company Performance - Many companies among the strong stocks have reported significant growth in revenue and net profit for the first half of 2025, with some companies like Tongzhou Electronics and Shuangyi Technology achieving over 100% growth in net profit [7].