Core Insights - The A-share market experienced active trading in September 2025, with a significant increase in the number of new accounts and user engagement on securities apps, indicating a robust market environment [1][3][10]. User Engagement and Market Activity - In September 2025, the monthly active users of securities apps reached 175 million, marking a 0.74% month-over-month increase and a 9.73% year-over-year increase, setting a new record for the year [1][5]. - The Shanghai Composite Index saw a slight increase of 0.64% in September, while the Shenzhen Component Index surged by 6.54%, reflecting a strong market performance [3]. - New account openings in the A-share market totaled 2.9372 million in September, a year-over-year increase of 60.73% and a month-over-month increase of 10.83%, making it the second-highest monthly figure of the year [3][4]. Securities App Performance - The top three third-party securities apps, Tonghuashun, Dongfang Caifu, and Dazhihui, maintained a dominant position with monthly active users exceeding 10 million [7][8]. - Tonghuashun led with 37.21 million active users in September, followed by Dongfang Caifu and Dazhihui with 18.23 million and 12.71 million, respectively [7][8]. - The overall user growth of securities apps showed signs of slowing down, with some broker apps experiencing slight month-over-month declines in active users [6][10]. Financing and Margin Accounts - In September, new margin trading accounts reached 205,400, a month-over-month increase of 12.24% and a year-over-year increase of 288%, indicating growing investor participation [4]. - The total number of margin trading accounts surpassed 15.29 million by the end of September, with individual investors accounting for 7.70 million [4]. AI Integration in Securities Apps - The integration of artificial intelligence (AI) is becoming a core focus for securities firms, enhancing operational models and service quality [11][12]. - Several firms are actively developing AI-driven applications to improve customer service and streamline processes, with notable launches including Huatai Securities' "AI Zhangle" app [12].