这只股票凭什么涨幅超过20倍？| 0819 张博划重点

Market Overview - On August 19, the market experienced a high-to-low fluctuation with the three major indices slightly declining [1] - The total trading volume in the Shanghai and Shenzhen markets was 2.59 trillion, a decrease of 175.8 billion compared to the previous trading day, marking the fifth consecutive day with trading volume exceeding 2 trillion [1] Sector Performance - AI hardware stocks maintained strong performance, with Industrial Fulian hitting the daily limit and reaching a new historical high [1] - Robotics concept stocks surged in the afternoon, with companies like Top Group also hitting the daily limit [1] - Huawei concept stocks saw a brief surge, with Chengmai Technology reaching a 20% daily limit increase [1] Index Performance - The Shanghai Composite Index fell by 0.02% [1] - The Shenzhen Component Index declined by 0.12% [1] - The ChiNext Index decreased by 0.17% [1]