芯片龙头ETF（516640）开盘跌1.75%，重仓股寒武纪跌1.49%，中芯国际跌1.48%

Group 1 - The core viewpoint of the article highlights the performance of the Chip Leader ETF (516640), which opened down by 1.75% at 1.122 yuan on February 6 [1] - Major holdings in the Chip Leader ETF experienced declines, with notable drops including Cambrian (down 1.49%), SMIC (down 1.48%), and GigaDevice (down 2.43%) [1] - The ETF's performance benchmark is the CSI Chip Industry Index return, managed by Fortune Fund Management Co., Ltd., with a return of 14.35% since its inception on August 19, 2021, and a return of 2.83% over the past month [1]