Core Viewpoint - Changchun Yidong (600148) experienced significant stock price fluctuations, with a cumulative increase of over 20% in three consecutive trading days, prompting an announcement regarding abnormal trading behavior [1] Group 1: Company Performance - As of July 9, 2025, the net profit attributable to shareholders, excluding non-recurring gains and losses, was -0.9539 million [1] - The company aims for a comprehensive budget target of 720 million in revenue and 25 million in total profit for 2025 [2] - The company confirmed that its daily production and operational activities are normal, with no significant changes in market environment or industry policies [2] Group 2: Product and Market Strategy - Changchun Yidong focuses on three major system clusters: transmission system, hydraulic lifting system, and electric & AMT system, with a product line layout of 6+N, including clutch products and hydraulic lifting products [2] - The company has entered the supply chain of the top ten mainstream heavy truck manufacturers, gaining high recognition from industry leaders [1] - The company is actively expanding its overseas strategy, with hydraulic lifting products trusted by manufacturers in European countries such as the Netherlands and Germany [1] Group 3: Trading Activity - The top five buying brokerage firms included Guotai Haitong and Yongxing Securities, while the top five selling firms included Yongxing Securities and institutional proprietary trading [3]