I think IB has something like that, but since I don't use them I can't really comment on it. It's called "Brackett Trader" and I imagine you pre-set how far away you want your stop to be from entry price, and it will automatically put the order in. But, someone who actually uses the system should comment on how it works. I don't know of any trading platform that has an automatic trailing stop. On J-Trader it's super easy to move a stop, once it's in the system, but its not automatic. kp