Quote from logic_man:
Well, if you had an institution which absolutely HAD to have a position of a specific size, they could "hope" for heat to occur so they could get in at a lower or higher price, depending on which direction the trade trigger was recommending. Otherwise, though, I don't see how the fact that the strategy basically says "Entry is best at this specific price" would limit them. If the market says "Go long at 1400" and you can't buy all you want at that specific price point, that's just a fact of life.
To be clear, most of my trades do,much to my chagrin, experience heat. I nearly never buy at the exact moment when the market is ready to rocket past my price. The system wasn't designed to work that way. When I go long the ES at 1400, the chances that the market will retreat to 1399.75 is quite high. But, the chances that it will ultimately go to a point where I can exit profitably is also quite high. So, let's say that I bought everything the market had to sell at 1400, would it make sense for me to also buy everything the market had to sell at 1399.75? Absolutely. That's why I say that the scalability is practically infinite.