Question

The following numbers were randomly generated from a standard normal distribution: -0.25 , 0.3 , 1.5...

The following numbers were randomly generated from a standard normal distribution: -0.25 , 0.3 , 1.5 , -1.2, -1.65, 1.5 1) Given interest rate = 0.01 and volatility parameter = 0.2, compute the drift parameter of a security following a risk-neutral geometric Brownian motion. 2). Suppose security ABC follows a geometric Brownian motion with the parameters given in 1). If the initial closing price of ABC S0 = S = 50, compute 6 more simulated daily closing prices for ABC. 3). If the strike price of a European call is = 52, and the expiration of this call is at the end of 6 days, what is the payoff of the call? That is, what is the value of (S6 ?K )+?

Homework Answers

Answer #1

1)solution:

given data:

s = 50

= 0.01

= 0.2

assuming t is for 1 week so t value is

t = 0.0192

as per brownian process,

the formula of  S/S = *t+*(root(t))

susbstitute the all values in above quation

S/50 = 0.01*0.0192+0.2**(root(0.0192))

S 50
0.01
0.2
t 0.0192
standard normal distributions are -0.25 0.3 -1.2 -1.65 1.5
S -0.33681 0.425292 -1.65317 -2.27671 2.088061

2) Stock price over a week as shown in below:

day initial stock price change in stock price closing stock price
1 50 -.0336810162 49.66318984
2 49.66318984 0.425292194 50.08848203
3 50.08848203 -1.653168775 48.43531326
4 48.43531326 -2.276707066 46.15860619
5 46.15860619 2.088060969 48.24666716
6 48.24666716 0 48.24666716

3)

stock price share price pay off
52 50 0
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