I have been counting the rally started off December 2019 lows as a corrective temporary pullback. At this point it looks like a corrective A-B-C structure. 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. That wave ( v ) up 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.