Newbie here.
I long strangled BBND (closed at 21.43 today) with ten SEPT 17.5 puts at $1.09 and ten SEPT 25 calls at $1.41 (total cost, $2500). ThinkOrSwim's theoretical price with an after-market drop of -$2.87 and assuming volatility drop of 15% is $1.04 for the puts and $0.15 for the...