Discretionary Order An order giving a broker the ability to decide when to buy/sell securities at the best possible price for the customer. Some discretionary orders place restrictive terms to limit the amount of discretion the broker has. Investopedia Says: When placing a discretion order, the investor is giving limited discretion to the broker and allowing for the timing of buying/selling to be decided by the trader. Related Terms: Autotrading Limit Order Market Order Stop Order Time-Of-Day Order |