Yep, I use ATR as you suggest and yes, I do look at the reversion from contracting to expanding ranges. One problem is that sometimes it can stay in a narrow range.
There's a range on the daily, the top of it is 95.70 ish. Suspect it might go there first before turning down.
I show the HOD at this point having touched the falling 20-day EMA. But there is still that range high in play if the upside gains traction again.
went long overnight on Nikkei at 15600, out at 15500 -$1500 Also had a Sugar trade (forgot to mention this), was short at 17.70, out at 1740 +$900