So here is our setup with PEs –
Debit Paid = 19.35 + 90 – 42.6 – 42.6= 24.15
Upper Breakeven:
Higher Long Option Strike – Debit Paid = 9950 – 24.15 = 9925.85
Lower Breakeven:
Lower Long Option Strike + Debit Paid = 9750 + 24.15 = 9774.15
Max Profit
= The distance between the short strike and long strike – Debit Paid
= 9950 – 9850 – 24.15
= 75.85
[1] The term “Long” comes from the fact that it mostly generates a Debit Spread.
[2]Although it looks like it should be neutral. But, A long butterfly will tend to act like a short straddle, while a short butterfly will tend to act like a long straddle but the risk is limited in this case.