芯片ETF东财（159599）开盘跌1.74%，重仓股寒武纪跌2.03%，中芯国际跌1.39%

Group 1 - The core point of the article highlights the performance of the chip ETF Dongcai (159599), which opened down by 1.74% at 2.313 yuan on February 27 [1] - Major holdings in the chip ETF Dongcai experienced declines, including Cambrian (down 2.03%), SMIC (down 1.39%), and Haiguang Information (down 2.26%) [1] - The performance benchmark for the chip ETF Dongcai is the CSI Chip Industry Index return rate, managed by Dongcai Fund Management Co., with a return of 135.41% since its establishment on April 19, 2024, and a recent one-month return of -0.98% [1]