The last top made at 66.60 on 23 April 2019 looks like the top of wave ( iii ) of C and this drop is a micro correction in wave ( iv ) down before another thrush higher in wave ( v ) of C of ( B ) up. This pullback looks impulsive. To complete micro five waves down off the last top it needs another push lower to the Green Demand Zone.

After this pullback in wave ( iv ) down gets completed  I expect wave ( v ) up which would complete that corrective rally off December 2018 low. There is a strong confluence of extensions at 68.40 that could be the ultimate target for that final wave ( v ) up.