Question

A European shout option is an option for which the payoff at expiration is max(0, S − K, G − K), where G is the price at which you shouted. (Suppose you have an XYZ shout call with a strike price of $100. Today XYZ is $130. If you shout at $130, you are guaranteed a payoff of max($30, ST − $130) at expiration.) You can only shout once, irrevocably.
a. Demonstrate that shouting at some arbitrary priceG>K is better than never shouting.
b. Compare qualitatively the value of a shout option to (i) a lookback option (which pays max[0, ST − K], where ST is the greatest stock price over the life of the option) and (ii) a ladder option (which pays max(0, S − K, L − K) if the underlying hits the value L at some point over the life of the option).
c. Explain how to value this option binomially.


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  • CreatedAugust 12, 2015
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