4月28日晚间新闻精选

Group 1 - The China Securities Association plans to regulate the investment behavior of securities practitioners to prevent illegal activities such as insider trading and market manipulation [1] - Tencent has purchased approximately 2 billion yuan worth of GPU computing resources from ByteDance, while Alibaba has also placed GPU orders with ByteDance following the success of DeepSeek [2] - ByteDance currently possesses around 1 million GPU cards, making its computing resource scale one of the largest in the world [2] Group 2 - The Ministry of Industry and Information Technology has released key points for automotive standardization by 2025, focusing on standards for AI in vehicles, solid-state batteries, and electric vehicle battery swapping [3] - XCMG plans to repurchase company shares worth between 300 million to 600 million yuan to reduce registered capital [5] - SF Holding reported a 16.9% year-on-year increase in net profit for the first quarter and plans to repurchase shares worth between 500 million to 1 billion yuan [5] - Taicheng Technology reported a 150% year-on-year increase in net profit for the first quarter [5] - HuLuWa's stock will undergo other risk warnings, with its abbreviation changing to ST HuLuWa [5] - Dongbei Group experienced a 5.85% year-on-year decline in net profit for the first quarter [5] - WuXi AppTec reported an 89.06% year-on-year increase in net profit for the first quarter [5]