Focus on the pronunciation of proprietary trader
English definition of “proprietary trader”
noun [C] (also prop trader) STOCK MARKET, FINANCE
› an employee of a financial organization who uses the organization’s money to trade in shares, stocks, bonds, etc. in order to make a profit for the organization rather than for its customers: The proprietary traders traded company money to increase bank profits and their own paychecks. A prop trader at Deutsche Bank lost $1.8bn in 2008.