光启技术股价跌1.05%，万家基金旗下1只基金重仓，持有48.84万股浮亏损失25.4万元

Group 1 - The core point of the news is that Guangqi Technology's stock has experienced a decline, with a 1.05% drop on December 31, bringing the share price to 48.95 yuan, and a total market capitalization of 1054.67 billion yuan [1] - Guangqi Technology has seen a cumulative decline of 4.33% over the past three days, indicating a negative trend in its stock performance [1] - The company, established on July 18, 2001, specializes in the research, production, and sales of next-generation metamaterials and advanced equipment, with 99.23% of its revenue coming from metamaterial products [1] Group 2 - From the perspective of fund holdings, Wan Jia Fund has a significant position in Guangqi Technology, with its ETF increasing holdings by 38.09 million shares in the third quarter, making it the largest holding at 9.77% of the fund's net value [2] - The Wan Jia National Aerospace Industry ETF has incurred a floating loss of approximately 25.4 thousand yuan today, with total losses of 109.4 thousand yuan during the three-day decline [2] - The ETF, managed by He Fangzhou, has a total asset scale of 92.64 billion yuan, with a performance range from a best return of 84.58% to a worst return of -6.76% during his tenure [2]