IBB trending down all day

Played BIIB missed the bottom but was in at $407.47 with 16 Apr 17 $410 Calls avg at $17.30 and sold at $17.80 easy money. IBB was trending day it was a good thing I didn't buy any Calls. IBB closed at $337.47 with a ranged of $336.21 to $340.94. Will buy a few Calls at around $335-$330. Good luck in this rigged casino.