Does the SPY move exactly like the ES? I am thinking about switching over to futures. I want to do some simluated trading b4 moving. I am trying to trade SPY, but there seems to be a lot of randomness. people say futures are "smoother" than equities. is that really true? If not, then other than taxes and leverage there is not advantage in trading futures. QQQQ has such a small range it's not even worth it.