Group 1 - The A-share market in September concluded with significant stock performance, with the top gainers including Shoukai Co., which rose by 181.2%, and Haibo Sichuang, which increased by 153.52% [1] - Other notable stocks that saw gains exceeding 100% include Pinming Technology, Tiangpu Co., Demingli, Shannon Chip Creation, Online and Offline, and Lanfeng Biotechnology, ranking from 3rd to 8th in terms of percentage increase [1] Group 2 - The formation of a MACD golden cross signal indicates a positive trend for certain stocks, suggesting potential upward momentum in their prices [2]