经纬恒润股价跌5.03%，长城基金旗下1只基金重仓，持有180万股浮亏损失1074.6万元

Group 1 - The core point of the article highlights the recent decline in the stock price of Beijing Jingwei Hengrun Technology Co., Ltd., which fell by 5.03% to 112.63 yuan per share, with a total market capitalization of 13.511 billion yuan [1] - The company, established on September 18, 2003, specializes in providing electronic products, R&D services, and high-level intelligent driving solutions for sectors such as automotive, high-end equipment, and unmanned transportation [1] - The revenue composition of the company is as follows: electronic products account for 87.55%, R&D services and solutions for 12.21%, other supplementary services for 0.20%, major assemblies and special vehicles for 0.02%, and intelligent transportation solutions for 0.01% [1] Group 2 - From the perspective of major shareholders, Changcheng Fund's Changcheng Jiujia Innovation Growth Mixed A Fund (004666) reduced its holdings by 200,000 shares in the second quarter, now holding 1.8 million shares, which represents 2% of the circulating shares [2] - The fund has incurred an estimated floating loss of approximately 10.746 million yuan due to this reduction [2] - The fund manager, You Guoliang, has been in position for 5 years and 326 days, with the fund's total asset scale at 3.805 billion yuan [3]