We consider a (European) call option on a stock with expiration in 3 months and strike price $10. The annual interest rate on the market is r = 4%. The current price of the stock is $10 and we assume that the stock follows a geometric Brownian motion (Black-Scholes) model with parameters = 6% and σ = 0.2. (a) Determine the price Fo of this option at time t = : 0 (today). (b) Using the formulas provided in the lecture videos, calculate the value of each of the Greeks for this option. Namely, calculate A, T, v, О, p. (c) Find a formula for the change of the option price with respect to a change in the af (St, t) Әк strike price. In other words, determine (d) For each of the suggested modifications below, use an approximation to determine the change in the price of the option above without actually recalculating the price. For each one, provide an intuitive argument to explain why the price increases or decreases. (i) The rate of return μ decreases to 5%. (ii) The interest rate r decreases to 3%. (iii) The volatility decreases to σ = 0.1. (iv) The expiration date changes to 4 months. (v) The strike price goes up to $11. (vi) The current stock price drops instantaneously to $9.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section: Chapter Questions
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We consider a (European) call option on a stock with expiration in 3 months and strike
price $10. The annual interest rate on the market is r = 4%. The current price of the stock
is $10 and we assume that the stock follows a geometric Brownian motion (Black-Scholes)
model with parameters = 6% and σ = 0.2.
(a) Determine the price Fo of this option at time t
=
: 0 (today).
(b) Using the formulas provided in the lecture videos, calculate the value of each of the
Greeks for this option. Namely, calculate A, T, v, О, p.
(c) Find a formula for the change of the option price with respect to a change in the
af (St, t)
Әк
strike price. In other words, determine
(d) For each of the suggested modifications below, use an approximation to determine
the change in the price of the option above without actually recalculating the price.
For each one, provide an intuitive argument to explain why the price increases or
decreases.
(i) The rate of return μ decreases to 5%.
(ii) The interest rate r decreases to 3%.
(iii) The volatility decreases to σ = 0.1.
(iv) The expiration date changes to 4 months.
(v) The strike price goes up to $11.
(vi) The current stock price drops instantaneously to $9.
Transcribed Image Text:We consider a (European) call option on a stock with expiration in 3 months and strike price $10. The annual interest rate on the market is r = 4%. The current price of the stock is $10 and we assume that the stock follows a geometric Brownian motion (Black-Scholes) model with parameters = 6% and σ = 0.2. (a) Determine the price Fo of this option at time t = : 0 (today). (b) Using the formulas provided in the lecture videos, calculate the value of each of the Greeks for this option. Namely, calculate A, T, v, О, p. (c) Find a formula for the change of the option price with respect to a change in the af (St, t) Әк strike price. In other words, determine (d) For each of the suggested modifications below, use an approximation to determine the change in the price of the option above without actually recalculating the price. For each one, provide an intuitive argument to explain why the price increases or decreases. (i) The rate of return μ decreases to 5%. (ii) The interest rate r decreases to 3%. (iii) The volatility decreases to σ = 0.1. (iv) The expiration date changes to 4 months. (v) The strike price goes up to $11. (vi) The current stock price drops instantaneously to $9.
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