光模块(CPO)指数盘中走弱，东山精密领跌

Group 1 - The optical module (CPO) index experienced a decline of 2% during intraday trading on November 7 [1] - Most constituent stocks of the index fell, with Dongshan Precision leading the decline at 4.23% [1] - Other notable declines included Yuanjie Technology at 3.39%, Liante Technology at 3.37%, Shijia Photon at 2.70%, and Xinyi Sheng at 2.60% [1]