首都在线股价跌5.08%，大成基金旗下1只基金重仓，持有31.17万股浮亏损失39.59万元

Group 1 - Capital Online experienced a decline of 5.08% on January 15, with a stock price of 23.75 yuan per share, a trading volume of 978 million yuan, a turnover rate of 10.28%, and a total market capitalization of 11.944 billion yuan [1] - The company, founded on July 13, 2005, and listed on July 1, 2020, is based in Chaoyang District, Beijing, and specializes in high-performance IDC services and cloud services, with revenue composition as follows: cloud hosting and related services 49.89%, IDC services 45.83%, and other income 4.28% [1] Group 2 - According to data from major funds, Dachen Fund has a significant holding in Capital Online, with the Dachen Industry Pioneer Mixed A Fund (008274) holding 311,700 shares, representing 4.34% of the fund's net value, making it the ninth-largest holding [2] - The Dachen Industry Pioneer Mixed A Fund was established on March 23, 2020, with a latest scale of 144 million yuan, achieving a year-to-date return of 17.41% and a one-year return of 26.82% [2] Group 3 - The fund manager of Dachen Industry Pioneer Mixed A Fund is Yu Weiye, who has been in the position for 2 years and 14 days, managing total assets of 212 million yuan, with the best fund return during his tenure being 48.25% and the worst being 17.1% [3]