Hi WLD I also did not think there was a difference but my broker was saying to enter change order rather than cancel and re-enter another one. I did not see any reason to do it that way and he really did not explain it. One question I have that you might be able to answer for me is how the que works for the orders? I missed a fill the other day when someone was at the ask of .50 and I put in a sell order at .45. I should have then been at the ask with the lower sell order correct? I usually look for the ask to drop to my order and then assume I will be next in the que for a fill if a trade goes through at the ask. I am wrong to assume that? My broker has never been very good at explaining how the que for the orders works with the options. I always thought it was like a stack of orders and if you were the first with your order in you were the first to fill? Unless it was an AON order. I also do not like the fact there is no L2 on the options pricing. I have been partially filled at the bid only to see it dropped. The MMs certainly have the advantage with the options. I think that the Futures offer the best advantage to a trader as there is less of a spread and not as much slippage in the pricing when trying to fill. JMHO though. Do you have any more insights to how the options are traded? TIA, Keep Rocking WLD! Bob :^)