A non-dividend-paying stock has a current price of 800 ngwee. In any unit of time (t, t + 1) the price of the stock either increases by 25% or decreases by 20%. K1 held in cash between times t and t + 1 receives interest to become K1.04 at time t + 1. The stock price after t time units is denoted by St. Required: I. Calculate the risk-neutral probability measure for the model. II. Calculate the price (at t = 0) of a derivative contract written on the stock with expiry date t = 2 which pays 1,000 ngwee if and only if S2 is not 800 ngwee (and otherwise pays 0

Intermediate Financial Management (MindTap Course List)
13th Edition
ISBN:9781337395083
Author:Eugene F. Brigham, Phillip R. Daves
Publisher:Eugene F. Brigham, Phillip R. Daves
Chapter8: Basic Stock Valuation
Section: Chapter Questions
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A non-dividend-paying stock has a current price of 800 ngwee. In any unit of time (t, t + 1) the price of the stock either increases by 25% or decreases by 20%. K1 held in cash between times t and t + 1 receives interest to become K1.04 at time t + 1. The stock price after t time units is denoted by St.
Required:
I. Calculate the risk-neutral probability measure for the model.
II. Calculate the price (at t = 0) of a derivative contract written on the stock with expiry date t = 2 which pays 1,000 ngwee if and only if S2 is not 800 ngwee (and otherwise pays 0).

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