A high-tech company overtook a traditional blue-chip on Friday to become the most expensive stock in China's A-share market, underscoring a broader market shift toward innovation-driven growth. Shares of Yuanjie Semiconductor Technology Co Ltd hit a record high of 1,439 yuan on Friday morning before closing at 1,403.08 yuan by midday, surpassing Kweichow Moutai, which ended the session at 1,402.02 yuan, to become the highest-priced stock in the A-share market.