Mainland AI company Zhiyu (2513) surged in stock price due to being given an 'Overweight' rating by JPMorgan for the first time. According to Ming Pao News, Zhiyu's stock price opened 10% higher in the morning, then rose repeatedly, with the increase expanding to 42% in the afternoon, reaching a high of 443 yuan. The current stock price is 423.4 yuan, up 111 yuan or 35.5%, with a transaction volume of 2.11 billion yuan.