It has less granularity than the contracts you mention, they need to tick 2.5 times for each of its ticks. It is also much thicker as other have mentioned. A few years ago it all but 'died' range and volatility wise. Now its nice.
Yesterday afternoon it dropped 7+ points in a couple of minutes running stops. Shortly after that it advanced double. YM dropped a little under 70. Slightly contrary to what others are saying it is displaying similar characteristics as the ER2 of old and the YM (despite it's 'thickness' ). In a nutshell volatility. 5 minute bars that are 5+ points or 70k contracts are not uncommon. Sometimes those overlap a lot (yesterday) i.e. back and fill, sometimes not (day before). I would say it has more in common with other index futures than differences.
Come on over there is plenty for everyone
