芯片50ETF（516920）开盘跌0.98%，重仓股中芯国际跌0.62%，寒武纪跌1.35%

Group 1 - The Chip 50 ETF (516920) opened down 0.98% at 1.013 yuan on November 12 [1] - Major holdings in the Chip 50 ETF include companies like SMIC, which opened down 0.62%, and Cambrian, which fell 1.35% [1] - The performance benchmark for the Chip 50 ETF is the CSI Chip Industry Index return, managed by Huatai-PineBridge Fund Management Co., Ltd. [1] Group 2 - Since its establishment on July 27, 2021, the Chip 50 ETF has returned 2.27%, while its return over the past month has been -5.79% [1]