Different types of orders allow you to be more specific about how you’d like your broker to fulfill your trades. When you place a stop or limit order, you are telling your broker that you don’t want the market price (the current price at which a stock is trading), but that you want the stock price to move in a certain direction before your order is executed.With a stop order, your trade will be executed only when the security you want to buy or sell reaches a particular price (the stop price).