When I put in a stop order on the NYSE, how is it handled in relation to a market order? Let's say the stock is at 51 and I put in a sell stop at 50. When the stock prints 50, I get my sell at the market. But how does that compare if I waited for the stock to print 50 then put in a market sell order? What does the specialist do? 1. Print 50, then process all valid stop orders in his book at that point, then process market orders that come in? 2. Print 50, then if he has market orders, handle them (which would include my market order coming in less than a second after I got the print), then catch his breath and handle the stop orders sitting on his book? 3. Execute a trade at 50, process all valid stop orders in his book at that point, then print 50? (at which point I submit my market order). The real question I'm trying to figure out is it better to have a stop order sitting in place or is it better to submit a market order the instant (and I mean instant if you can do it with a computer) the print comes across the ticker? Anyone know the detailed mechanics of how this is done? What is supposed to be done? What is actually done?