龙虎榜丨岩山科技涨9.07%，深股通净买入2.8亿元，作手新一净买入3.5亿元

Group 1 - The core point of the article is that Yanshan Technology (002195.SZ) experienced a significant stock price increase of 9.07% with a trading volume of 16.057 billion yuan and a turnover rate of 32.06% [1] - The net buying from the Shenzhen Stock Connect was 280 million yuan, with total buying of 844 million yuan and selling of 564 million yuan [1] - Notable trading activities included a net purchase of 350 million yuan by the well-known trader "Zuoshen Xinyi" and a net purchase of 129 million yuan by the "Chengdu faction" [1] Group 2 - The top five buying firms included the Shenzhen Stock Connect with a purchase amount of 844.19 million yuan, accounting for 5.26% of total trading [1] - The second largest buyer was Guotai Junan Securities from Nanjing with a purchase of 353.26 million yuan, representing 2.20% of total trading [1] - The top five selling firms were led by the Shenzhen Stock Connect, which also had a selling amount of 844.19 million yuan, making up 5.26% of total trading [1]