Is for example a LONG LIMIT order where the limit is underneath the actual price (so not preventing the entry) being treated - by my broker IB and/or the exchange - the exact same way as a MARKET order would be? Or are there any preferences which order will be filled first and/or better? I am talking about GLOBEX (mini-) futures and stocks on NYSE and NASDAQ? I am asking because now whenever I get an entry signal I enter a limit order with the limit at the current price (or 1 tick higher/better). In addition, I want a smaller size order to be entered at the same time now, but as a "market order" for a higher fill rate. So I wonder if e.g. I could place a limit order with lets say 1 or 2 ticks below the actual price just to avoid a short spike placing an entry order with a bad fill (in terms of price), or, if a market order would be filled first/preferred at the exchange? Thanks!