航发动力股价跌5.13%，万家基金旗下1只基金重仓，持有25.7万股浮亏损失78.64万元

Group 1 - The core point of the news is that China Aviation Power Co., Ltd. experienced a stock decline of 5.13%, with a current share price of 56.62 yuan and a total market capitalization of 150.93 billion yuan [1] - The company, established on December 23, 1993, and listed on April 8, 1996, specializes in the manufacturing of aircraft engines and related products, with 91.55% of its revenue coming from aircraft engines and derivatives [1] - The company is located in Xi'an, Shaanxi Province, and also engages in the production of civil aviation engine components for foreign trade and some non-aviation products, contributing 6.17% and 2.28% to its revenue respectively [1] Group 2 - From the perspective of fund holdings, Wan Jia Fund has a significant position in China Aviation Power, with its ETF reducing its holdings by 22.15 million shares in the fourth quarter, now holding 257,000 shares, which represents 6.41% of the fund's net value [2] - The Wan Jia National Aerospace Industry ETF (159208) has a current scale of 1.61 billion yuan and has achieved a return of 11.88% this year, ranking 1316 out of 5574 in its category [2] - The fund manager, He Fangzhou, has been in position for 1 year and 319 days, with the fund's total assets amounting to 15.605 billion yuan, achieving a best return of 112.85% and a worst return of -6.76% during his tenure [3]