ok//@wwwwwl:[smile]//@ncyncy:cool//@HelenJanet:Thank you very much @Tiger_Academy for explaining the following 5 types of orders for US stock trading:Limit OrderMarket OrderStop Loss OrderStop Limit OrderTrailing Stop OrderTo-date I have only used Limit Order to buy or sell a stock at a specific price, which is the most conventional way to place an order.The biggest feature of the limit order is that the price is flexible, we can trade according to the ideal price in our mind. And, using limit orders, we can trade almost any time period (including pre-market and post-market) to buy or sell a stock at a specific price.