西大门股价连续4天下跌累计跌幅7.53%，工银瑞信基金旗下1只基金持5.57万股，浮亏损失8.74万元

Group 1 - The core point of the news is that Xidamen's stock price has been declining for four consecutive days, with a total drop of 7.53% during this period, currently trading at 19.29 yuan per share and a market capitalization of 3.69 billion yuan [1] - Xidamen New Materials Co., Ltd. specializes in the research, production, and sales of functional shading materials, with its main business revenue composition being: finished curtains 50.84%, blackout fabrics 19.73%, sunlight fabrics 17.69%, adjustable light fabrics 8.89%, and others 2.84% [1] Group 2 - According to data, the Industrial Bank of China Asset Management has one fund heavily invested in Xidamen, specifically the Industrial Bank of China Joy Mixed A Fund (011729), which holds 55,700 shares, accounting for 0.15% of the fund's net value [2] - The Industrial Bank of China Joy Mixed A Fund has experienced a year-to-date return of 6.05% and a one-year return of 34%, ranking 3700 out of 8884 and 3132 out of 8127 in its category, respectively [2] Group 3 - The fund manager of the Industrial Bank of China Joy Mixed A Fund is Jiao Wenlong, who has a tenure of 10 years and 273 days, with the fund's total asset size at 50.462 billion yuan and a best return of 56.67% during his tenure [3] - Another fund manager, He Shun, has a tenure of 2 years and 116 days, managing assets of 9.946 billion yuan, with a best return of 80.96% during his tenure [3]