Revenue at 150 Chinese securities firms surged 31% to CNY330 billion (USD49.2 billion) in the first half from a year earlier, while net profit jumped 23% to CNY139 billion (USD 20.7 billion), according to a new report from KPMG. Proprietary trading remained the biggest revenue contributor, alongside growth across brokerage, investment banking, asset management, and credit businesses, it added.