Quote from MrN:
Here is a histogram of the 30 minute trading range for the ES contract (day session). This type of intraday range or volatility profile is pretty standard.
http://goo.gl/nWv1q
Quote from 1a2b3cppp:
So "chop" refers to the range of the individual bars rather than the range of the ES?
Hmm, we have different definitions of chop, so I see why I disagreed about lunchtime "chop" being a thing.