芯片ETF东财（159599）开盘跌0.35%，重仓股寒武纪跌1.09%，中芯国际跌1.89%

Group 1 - The core point of the article highlights the performance of the Chip ETF Dongcai (159599), which opened with a slight decline of 0.35% at 2.269 yuan [1] - The major holdings of the Chip ETF Dongcai include companies such as Cambrian, SMIC, and Haiguang Information, all of which experienced declines in their stock prices, with SMIC down by 1.89% and Cambrian down by 1.09% [1] - The performance benchmark for the Chip ETF Dongcai is the CSI Chip Industry Index return, managed by Dongcai Fund Management Co., with a return of 127.89% since its establishment on April 19, 2024, and a monthly return of 0.62% [1]