芯片ETF（159995）开盘跌1.49%，重仓股中芯国际跌1.28%，海光信息跌1.68%

Group 1 - The chip ETF (159995) opened down 1.49% at 1.980 yuan on February 2 [1] - Major holdings in the chip ETF include companies like SMIC, Haiguang Information, and Cambrian, with declines ranging from 0.47% to 4.47% [1] - The performance benchmark for the chip ETF is the National Securities Semiconductor Chip Index, managed by Huaxia Fund Management Co., with a return of 100.82% since its inception on January 20, 2020, and a recent one-month return of 14.61% [1]