星云股份股价跌5.1%，中欧基金旗下1只基金重仓，持有7400股浮亏损失2.01万元

Group 1 - Nebula Holdings experienced a 5.1% decline in stock price, trading at 50.60 yuan per share, with a total market capitalization of 8.819 billion yuan as of December 19 [1] - The company, founded on January 24, 2005, specializes in the research, development, production, and sales of lithium battery testing systems and related products, with revenue composition as follows: 75.78% from lithium battery equipment, 14.50% from other sources, 9.66% from testing services, and 0.07% from leasing income [1] Group 2 - The fund "China Europe National Index 2000 Enhanced A" (018663) holds 7,400 shares of Nebula Holdings, representing 0.31% of the fund's net value, making it the third-largest holding [2] - The fund has a total asset size of 65.767 million yuan and has achieved a year-to-date return of 28.1%, ranking 1552 out of 4197 in its category [2] Group 3 - The fund manager, Qian Yating, has been in position for 4 years and 48 days, overseeing an asset size of 5.022 billion yuan, with the best return during her tenure being 60.78% and the worst being -14.61% [3] - Co-manager Song Ting has been in position for 302 days, managing assets of 2.731 billion yuan, with a best return of 29.9% and a worst return of 1.66% during her tenure [3]