鼎龙股份股价跌5.01%，大成基金旗下1只基金重仓，持有5.48万股浮亏损失8.93万元

Group 1 - The core point of the news is that Dinglong Co., Ltd. experienced a stock price decline of 5.01%, with the current share price at 30.88 yuan, a trading volume of 1.43 billion yuan, a turnover rate of 6.15%, and a total market capitalization of 29.168 billion yuan [1] - Dinglong Co., Ltd. is based in Wuhan, Hubei Province, and was established on July 11, 2000, with its listing date on February 11, 2010. The company's main business involves general consumables for printing and copying, as well as optoelectronic semiconductor process materials [1] - The revenue composition of Dinglong Co., Ltd. is primarily from semiconductor materials, chips, and general printing and copying consumables, accounting for 99.47%, while other sources contribute 0.53% [1] Group 2 - From the perspective of major fund holdings, Dachen Fund has one fund heavily invested in Dinglong Co., Ltd. The Dachen Hengxiang Mixed A Fund (008869) increased its holdings by 19,500 shares in the second quarter, bringing the total to 54,800 shares, which represents 2.98% of the fund's net value, ranking it as the fifth-largest holding [2] - The Dachen Hengxiang Mixed A Fund (008869) was established on March 5, 2020, with a latest scale of 35.6025 million. Year-to-date returns are 15.44%, ranking 4,339 out of 8,259 in its category; the one-year return is 36.98%, ranking 3,506 out of 8,023; and since inception, the return is 31.68% [2] - The fund manager of Dachen Hengxiang Mixed A Fund is Li Yu, who has a cumulative tenure of 11 years and 23 days, with total assets under management of 593 million yuan. The best fund return during his tenure is 82.34%, while the worst is -6.79% [2]