I was reading a thread on this site and came across someone stating that in order to have the potential for price improvement, you must have your limit order posted for at least 2 minutes. Example: NBBO 35.75 - 35.85 Say I think market is strengthening and going to rally; the .85 offer is being taken fast. So let's say I am long at 35.65. I post an offer at 35.90 just as I see this tape action taking place. Let's assume now that there really is huge buying pressure and the specialist moves the stock up to offer at 35.97 to find enough stock to fill this order. So from what the person was saying in teh post I read, I wouldn't get price improved if he prints at 35.97 since I didn't have my order out at 35.90 for at least 2 minutes. Hmmmm..... I've never had this happen to me, but I guess I am going to be aware of this and actually try it to see what happens. I have been price improved a good amount of the time, but thinking back, I can't remember how long my order was out before hand. I just don't understand how a specialist could print at .97 when I have an order to sell at .90, regardless of when I put it in, as long as I entered it before he moved up to .97. I do realize that if I wait until he moves up to .97 and then post an order to sell at .97 that I might not get filled since I would be at the end of the line in offering the .97 stock and there may not be enough buying to take my offer. Hopefully I have been clear in my question here which is: Do you have to have your limit order out for at least 2 minutes to get price improved? Thanks!