please exclude Arb and highly technical based edge this thread only focuses on trend and mean reversion envisage the following You and I use the same edge we clog up the orders at price 100 price reaches 100 our market orders execute driving the price up 10 20 30 points suddenly in 1 second, price is beyond our target, we automatically enter sell orders price drops 10 20 30 points we all made 5 points each which was our target we can all use the same edge sure trading like this would be strange but we could do it