Can I still trade successfully with that perception of the markets. What I do know is that stocks trade in certain ranges (obviously GE wont go from 35 to 60 in one tick) and the movements are relatively stable from one price point to the next on an intra-day basis but the combination of buyers and sellers and all of the many reasons for making a trade as well as all the different strategies that traders employ, make for totally random price action. Sure somebody can point out s/r on a chart after the fact but if you backtest it your stops will equal your gains and you will be down commissions. So having said that, are there strategies that will make you a winner if you believe markets are totally random? PS. I do believe tape reading will give you an edge because one specialist controls orders and 1 human can become predictable in how they handle orders.