SHORT STRANGLE
OTM Put Strike Price – (OTM Call Price + OTM Put Price) = Low Break-even Point
OTM Call Strike Price + (OTM Call Price + OTM Put Price) = High Break-even Point
LONG BUTTERFLY
Buy One + Sell Two + Buy One = Total Debit
SHORT BUTTERFLY
Sell One + Buy Two + Sell One = Total Credit
OTM Put Strike Price – (OTM Call Price + OTM Put Price) = Low Break-even Point
OTM Call Strike Price + (OTM Call Price + OTM Put Price) = High Break-even Point
LONG BUTTERFLY
Buy One + Sell Two + Buy One = Total Debit
SHORT BUTTERFLY
Sell One + Buy Two + Sell One = Total Credit