Reasons for this short trade:
momentum becoming exhausted and tapping the expecting a bounce back to the downside.
Tapped the 151.500 resistance barrier & expecting pullback to the 150.00 and then further down to 147.900.
4 Hour chart shows a gravestone which is momentum being squashed as it tries to push higher, rejected by bears.
This could be a good risk/reward trade if stops are placed on 152.500 and TP is set around 147.900.