龙磁科技股价跌5.06%，博时基金旗下1只基金重仓，持有900股浮亏损失3618元

Group 1 - The core point of the news is that Longmag Technology experienced a decline of 5.06% in its stock price, reaching 75.48 CNY per share, with a trading volume of 298 million CNY and a turnover rate of 4.71%, resulting in a total market capitalization of 9 billion CNY [1] - Longmag Technology, established on January 19, 1998, and listed on May 25, 2020, is based in Hefei, Anhui Province, and specializes in the research, production, and sales of new functional materials made from permanent magnet ferrite [1] - The company's main business revenue composition includes magnetic materials at 85.54%, commutators and others at 9.93%, micro-inverters and accessories at 4.37%, and leasing at 0.16% [1] Group 2 - From the perspective of major fund holdings, only one fund under Bosera Fund has a significant position in Longmag Technology, specifically the Bosera CSI 2000 ETF, which reduced its holdings by 300 shares in the fourth quarter, now holding 900 shares, accounting for 0.51% of the fund's net value [2] - The Bosera CSI 2000 ETF, established on May 28, 2024, has a latest scale of 11.6167 million CNY, with a year-to-date return of 10.65% and a one-year return of 69.06% [2] - The fund manager, Tang Yibing, has been in charge for 3 years and 199 days, with the fund's total asset scale at 10.541 billion CNY, achieving the best return of 98.91% and the worst return of -41.93% during his tenure [2]