Quote from TriPack:
An additional bit of refinement on the concept of overnight session volume being predictive of future moves, take the overnight session's range and divide it by the previous session's day only range. If it is greater than 50% then odds are very high the following RTH session will be a big range day. I define big range days as 120% or more than the average daily range.
Very interesting Tripack I will watch that closely.
Thanks.