A question about how orders are matched: Let's say I place a limit order (using TWS) for 1 contract, at which point I'm placed in a queue. If I later change the order to 2 contracts (not cancelling and starting again, but rather changing amount to 2), are both contracts bumped to the back of the queue? If so it might, in such a scenario, be better to go with a second individual order? A related question: Say you have placed a limit order at a certain price (using TWS). Later you adjust the price, but do not transmit it -- thus, your original order still stands. If you decide in the end not to change your order, is there any way to get TWS to revert to showing your actual order price (I sometimes forget what it was!)? Thanks in advance for all help.