科创芯片ETF基金（588290）开盘跌0.71%，重仓股中芯国际跌0.39%，海光信息跌0.54%

Group 1 - The core point of the article highlights the performance of the Sci-Tech Chip ETF (588290), which opened with a decline of 0.71% at 1.548 yuan on August 4 [1] - The major holdings of the Sci-Tech Chip ETF include companies such as SMIC, Haiguang Information, and Cambrian, with varying performance; for instance, SMIC fell by 0.39%, while Chipone rose by 0.55% [1] - The fund's performance benchmark is the Shanghai Stock Exchange Sci-Tech Board Chip Index, managed by Huaan Fund Management Co., with a return of 55.77% since its inception on September 30, 2022, and a return of 3.75% over the past month [1]