Question
1. Consider a European derivative security with the following payo structure V = V (S) as a function of the underlying asset S: V (S)
1. Consider a European derivative security with the following payo structure V = V (S) as a function of the underlying asset S:
V (S) =:
0, S<60
S-60, 60<=S<=70
10, 70<=S<=90
S-80, S>90
The option expires one year from today. The price of a zero coupon bond maturing one year from today is $0.99. Currently the stock price is $89 per share.
(a) Draw the payoff diagram, that is, plot V as a function of S.
(b) Suppose you are able to write (sell) this option at time 0 for $90. Create an arbitrage portfolio.
(c) Suppose you are able to buy this option at time 0 for $9. Create an arbitrage portfolio.
(d) Show how to replicate this option by a portfolio containing only stock, bonds and call options.
Please advise how should we solve this problem. Thanks!
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