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Black-Scholes 2.45-Y 100% Q- Search in Sheet Home Layout Tables Charts SmartArt Formulas Data Review Edit Font Number Format

Black-Scholes

1. C8: Provide a formula for the forward price based on the stock price S, the risk-free rate r and the time to expiration T.

2. Columns N, O: Provide formulas for the future value (at expiration) value of the option premiums using the BlackScholes option prices C(K,T) and P(K,T), the risk free rate r and the time to expiration T.

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Answer #1

Answer

1) Formula for Forward price:

F = S(1+r)T

Where,

F = Forward Price

S = Spot/stock price

r = Risk free rate

T = Time to expiration

OR

IF continuous compound rate of interest is used:

F = S*ert

Where,

F = Forward Price

S = Spot/stock price

r = Risk free rate

T = Time to expiration

e = Exponetial constant having standard value of 2.7183

2)

Call option price:

C(K,T) = S​*N(d1​)−Ke−rt *N(d2​)

Where,

d1 = [ln St / K ​+(r+σ2v / 2​) t]/ σs​t

d2 = d1 - σs​t

​where:

C=Call option price

S=Current stock (or other underlying) price

K=Strike price

r=Risk-free interest rate

t=Time to maturity

N=A normal distribution​

Put Option Price:

P(K,T) = Ke−rt *N(−d2​) − S​*N(−d1​)

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