Changxin Technology surged in China's A-share market on Aug. 17, rising 12% to close at 61.8 yuan per share and setting a new post-listing high. Its latest market capitalization reached 4.13 trillion yuan, making it the highest-valued stock in the A-share market. That valuation is about 2.5 times the market capitalization of Kweichow Moutai, underscoring the scale of the move.