电路板指数盘中跌2%，骏亚科技跌停

Group 1 - The circuit board index experienced a decline of 2% during intraday trading, indicating a negative trend in the sector [1] - Most component stocks within the index showed weakness, with notable declines in several companies [1] - Junya Technology hit the daily limit down, while other companies like Zhongfu Circuit, Shenghong Technology, and Shengyi Technology saw declines of 7.50%, 6.06%, and 5.21% respectively [1] Group 2 - Pengding Holdings also faced a decline, dropping by 4.81%, contributing to the overall negative sentiment in the circuit board industry [1]