Note: they can really only "frontrun" you if you are making a massive trade. Even then, from the other side it's not really perceived as frontrunning, rather as

Note: they can really only "frontrun" you if you are making a massive trade. Even then, from the other side it's not really perceived as frontrunning, rather as "getting out of the way" of a huge order that's going to change the price. You don't want to be the one that sold them some stock for $1 that they will immediately push to $10, which then you will have to buy back for $10, as you are the market maker...