润欣科技股价跌5.13%，华夏基金旗下1只基金位居十大流通股东，持有223.35万股浮亏损失250.15万元

Group 1 - The core viewpoint of the news is that Runxin Technology's stock has experienced a significant decline, with a 5.13% drop on September 4, leading to a total market value of 10.61 billion yuan and a cumulative decline of 13.58% over four consecutive days [1] - Runxin Technology, established on October 9, 2000, and listed on December 10, 2015, specializes in providing IC application solutions and technical support services, with 100% of its main business revenue derived from IC and other electronic components [1] - The stock's trading volume on September 4 was 540 million yuan, with a turnover rate of 5.00% [1] Group 2 - Among the top ten circulating shareholders of Runxin Technology, Huaxia Fund's Huaxia CSI 1000 ETF (159845) entered the list in the second quarter, holding 2.2335 million shares, which is 0.45% of the circulating shares [2] - The Huaxia CSI 1000 ETF has experienced a floating loss of approximately 2.5015 million yuan today and a total floating loss of 7.6609 million yuan during the four-day decline [2] - The fund manager, Zhao Zongting, has been in charge for 8 years and 143 days, with the fund's total asset scale at 389.148 billion yuan and a best return of 107.43% during his tenure [2]