What is, ballpark, the largest number of ES contracts a single person could enter for quickest execution? I've made it up to 30, but I'd like to try for more. I also realize this is largely dependent upon my brokerage. But if bigger means significantly slower total execution, which is what I fear, then I won't do it. However, I have a plan B question. Plan B - In lieu of a single, large order for 50 contracts, would a person be better off doing two trades at 25? Hypothetical is perhaps I have an assistant execute their order of 20-25 at the same time - is this more plausible? All I'm looking for here is honest feedback and appreciate the wisdom and experience. Thanks!