For the following problem assume the effective 6-month interest rate is 2 %, the S&T 6-month forward price is $ 1020, and use the premiums listed below for S&R options with 6 month to expiration.

StrikeCallPut
950120.40551.777
100093.80974.201
102084.4784.47
105071.802101.214
110751.873137.167


1) Suppose you buy a 1050-strike S&T straddle, determine the profit for the following S&T index spot prices at expiriry.

When price is $ 925, the profit is $ ?
When price is $ 950, the profit is $ ?
When price is $ 975, the profit is $ ?
When price is $ 1000, the profit is $ ?
When price is $ 1025, the profit is $ ?
When price is $ 1050, the profit is $ ?
When price is $ 1075, the profit is $ ?
When price is $ 1100, the profit is $ ?
When price is $ 1125, the profit is $ ?

2) Suppose you write a 950-strike S&T straddle, determine the profit for the following S&T index spot prices at expiriry.

When price is $ 925, the profit is $ ?
When price is $ 950, the profit is $ ?
When price is $ 975, the profit is $ ?
When price is $ 1000, the profit is $ ?
When price is $ 1025, the profit is $ ?
When price is $ 1050, the profit is $ ?
When price is $ 1075, the profit is $ ?
When price is $ 1100, the profit is $ ?
When price is $ 1125, the profit is $ ?

3) Suppose you simultaneously buy a 1050-strike S&T straddle and write a 950-strike S&T straddle, determine the profit for the following S&T index spot prices at expiriry.

When price is $ 925, the profit is $ ?
When price is $ 950, the profit is $ ?
When price is $ 975, the profit is $ ?
When price is $ 1000, the profit is $ ?
When price is $ 1025, the profit is $ ?
When price is $ 1050, the profit is $ ?
When price is $ 1075, the profit is $ ?
When price is $ 1100, the profit is $ ?
When price is $ 1125, the profit is $ ?

You can earn partial credit on this problem.