Group 1 - The core viewpoint of the news is that AVIC Heavy Machinery has experienced a significant decline in stock price, dropping 1.8% to 15.81 CNY per share, with a total market capitalization of 24.909 billion CNY and a cumulative decline of 8.35% over four consecutive days [1] - AVIC Heavy Machinery's main business includes forging and casting (78.30% of revenue), radiators (12.73%), hydraulic products (5.07%), and other supplementary products (2.35%) [1] - The company is located in Guiyang, Guizhou Province, and was established on November 14, 1996, with its listing date on November 6, 1996 [1] Group 2 - The top circulating shareholder of AVIC Heavy Machinery is the Guotou Ruijin Fund, which increased its holdings in the AVIC Heavy Machinery stock by 3.3357 million shares in the second quarter, holding a total of 16.7541 million shares, accounting for 1.14% of circulating shares [2] - The Guotou Ruijin National Security Mixed A Fund has incurred a floating loss of approximately 4.8587 million CNY today and a cumulative floating loss of 24.1258 million CNY during the four-day decline [2][4] - The fund was established on December 2, 2015, with a current scale of 2.525 billion CNY, and has achieved a year-to-date return of 10.22% [2] Group 3 - The fund manager of Guotou Ruijin National Security Mixed A is Li Xuan, who has been in the position for 9 years and 280 days, with a total asset scale of 4.265 billion CNY [3] - During Li Xuan's tenure, the best fund return was 34.32%, while the worst return was -29.28% [3] Group 4 - Guotou Ruijin National Security Mixed A Fund holds AVIC Heavy Machinery as its sixth-largest heavy stock, with 6.63% of the fund's net value [4] - The fund has experienced a floating loss of approximately 4.8587 million CNY today and a cumulative floating loss of 24.1258 million CNY during the four-day decline [4]