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English definition of “proprietary trading”

proprietary trading

noun [U]
 
 
( also principal trading) STOCK MARKET, FINANCE
trading by a financial organization to make a profit for itself rather than its customers: No more than a quarter of a bank's capital can be devoted to a single activity such as proprietary trading. proprietary trading activities/operations
(Definition of proprietary trading from the Cambridge Business English Dictionary © Cambridge University Press)
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