西部黄金跌停，前海开源基金旗下1只基金重仓，持有1083.36万股浮亏损失4842.62万元

Group 1 - The core point of the news is that Western Gold Co., Ltd. experienced a significant drop in stock price, closing at 40.25 yuan per share, with a total market value of 36.668 billion yuan and a trading volume of 19.0423 million yuan [1] - The company, established on May 14, 2002, and listed on January 22, 2015, primarily engages in gold mining and smelting, with gold products accounting for 86.25% of its main business revenue [1] - Other revenue sources include electrolytic manganese (8.57%), silicon manganese alloy (2.44%), and various other products [1] Group 2 - Qianhai Kaiyuan Gold and Silver Jewelry Mixed A Fund (001302) is among the top shareholders of Western Gold, having increased its holdings by 788,800 shares in the third quarter, totaling 8.0732 million shares, which represents 0.91% of the circulating shares [2] - The fund has reported a year-to-date return of 49.3%, ranking 5th out of 9,000 similar funds, and a one-year return of 157.84%, ranking 9th out of 8,193 [2] - The fund manager, Wu Guoqing, has a tenure of 10 years and 134 days, with the fund's total assets amounting to 7.907 billion yuan [3] Group 3 - In the fourth quarter, Qianhai Kaiyuan Gold and Silver Jewelry Mixed A Fund increased its holdings in Western Gold by 2.7604 million shares, bringing the total to 10.8336 million shares, which constitutes 7.91% of the fund's net value [4] - The estimated floating loss for the fund today is approximately 48.4262 million yuan [4]