Chipmaker CXMT vaults to top of China's valuation with 466% surge in Shanghai debut
By Yantoultra Ngui and Samuel Shen SINGAPORE/SHANGHAI, July 27 (Reuters) - Shares of CXMT Corp soared 466% on their Shanghai trading debut on Monday following Asia's biggest IPO this year, catapulting the chipmaker to the top of China's stock market by valuation despite a recent selloff in global