芯片50ETF（516920）开盘跌0.48%，重仓股中芯国际跌0.41%，寒武纪跌1.32%

Core Viewpoint - The Chip 50 ETF (516920) opened at a decline of 0.48%, indicating a downward trend in the semiconductor sector on December 26 [1] Group 1: ETF Performance - The Chip 50 ETF (516920) opened at 1.035 yuan, reflecting a decrease of 0.48% [1] - Since its establishment on July 27, 2021, the fund has achieved a return of 3.96%, with a one-month return of 8.26% [1] Group 2: Major Holdings Performance - Key stocks within the Chip 50 ETF include: - SMIC (中芯国际) down 0.41% - Cambricon (寒武纪) down 1.32% - Haiguang Information (海光信息) down 0.38% - Northern Huachuang (北方华创) down 0.23% - Lattice Semiconductor (澜起科技) down 0.71% - GigaDevice (兆易创新) down 0.45% - OmniVision (豪威集团) up 0.04% - Chipone (芯原股份) down 1.21% - JCET (长电科技) down 0.46% [1]