Definition:
For learning about proprietary desk, the concept of proprietary trading needs to be first understood. When, for the purpose of earning profits, a firm trades in stocks, commodities, bonds or in any other financial instrument with the firm's own money instead of the customer's money, it is termed as proprietary trading. The bank/company staff taking part in this activity of proprietary trading is often referred to as proprietary desk.
Credit : EconomicTimes