CXMT, a DRAM chipmaker founded in 2016, listed on the Shanghai STAR Market with shares surging 472 percent on debut and a market capitalization of 3.3 trillion yuan, making it the largest company on any mainland Chinese exchange. The IPO raised at least $8.6 billion, ranking as mainland China's second-largest after Agricultural Bank of China's 2010 offering. All reported figures derive from Euronews reporting.