中证1000ETF（159845）开盘跌0.83%，重仓股香农芯创跌1.83%，东芯股份跌1.63%

Group 1 - The China Securities 1000 ETF (159845) opened down 0.83% at 3.469 yuan [1] - Major holdings in the ETF experienced declines, including Xiangnong Chip Innovation down 1.83%, Dongxin Co. down 1.63%, and Yuanjie Technology down 3.28% [1] - The ETF's performance benchmark is the China Securities 1000 Index return, managed by Huaxia Fund Management Co., with a return of 45.08% since its inception on March 18, 2021, and a return of 1.47% over the past month [1]