GMCR plunged over 40% after hours with the stock trading in the low $28's at one point. The stock traded as high as $50.05 during the regular session. A move like this is an option traders dream. Had you positioned yourself with put options you stand to book a signification profit on GMCR tomorrow.
The $35 puts closed at $.13 they stand to open at around $7 tomorrow. $130 into $7,000 potentially.
The $30 puts closed at $.04 they could open as high as $2 tomorrow. $40 into $2,000 potentially.
The $37 puts closed at $.19 they could open as high as $9 tomorrow. $190 into $9,000 potentially.
The list goes on. GMCR has moved big in the past, that was the easy part. The tougher part was positioning yourself. A strangle or straddle would have worked almost as well as just going puts, although you would lose out 100% on a big move higher, which happened last earnings.
Plenty of traders were positioned for this move as evidenced by the volume at the corresponding strikes.
Stock Options: There is no other instrument that provides the potential to turn so little into so much in so little time.