上海新阳股价跌5.03%，长信基金旗下1只基金重仓，持有9.69万股浮亏损失28.29万元

Group 1 - Shanghai Xinyang Semiconductor Materials Co., Ltd. experienced a 5.03% decline in stock price, trading at 55.10 CNY per share with a total market capitalization of 17.267 billion CNY as of October 17 [1] - The company, established on May 12, 2004, and listed on June 29, 2011, specializes in the research, production, sales, and service of key process materials and supporting equipment for integrated circuit manufacturing and advanced packaging [1] - The revenue composition of the company includes 74.93% from integrated circuit materials, 20.86% from coatings, 2.76% from supporting equipment and accessories, 1.34% from integrated circuit electroplating processing, and 0.11% from other sources [1] Group 2 - Changxin Fund holds a significant position in Shanghai Xinyang, with its Changxin Quantitative Small and Medium Cap Stock A fund owning 96,900 shares, representing 1.51% of the fund's net value, making it the seventh-largest holding [2] - The fund has reported a year-to-date return of 37.58% and a one-year return of 51.26%, ranking 1141 out of 4218 and 827 out of 3865 respectively in its category [2] - The fund manager, Zuo Jinbao, has a tenure of over 10 years, with the fund's total asset size at 1.767 billion CNY and a best return of 150.72% during his management [3]