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What is the price of a European call option on a non-dividend-paying stock when the stock price is \(\$ 52,\) the strike price is \(\$ 50,\) the risk-free interest rate is \(12 \%\) per annum, the volatility is \(30 \%\) per annum, and the time to maturity is three months?

Short Answer

Expert verified
The price of the European call option is approximately $4.82.

Step by step solution

01

Identify Variables

First, we identify all the given variables in the problem: \( S = 52 \) (current stock price), \( K = 50 \) (strike price), \( r = 0.12 \) (risk-free interest rate), \( \sigma = 0.30 \) (volatility), and \( T = 0.25 \) (time to maturity in years).
02

Calculate d1

Use the formula for \( d1 \): \[ d1 = \frac{\ln(S/K) + (r + \sigma^2/2)T}{\sigma\sqrt{T}} \]Substitute the values: \[ d1 = \frac{\ln(52/50) + (0.12 + 0.30^2/2) \times 0.25}{0.30\sqrt{0.25}} \]Calculating gives: \[ d1 \approx 0.7693 \]
03

Calculate d2

Use the formula for \( d2 \): \[ d2 = d1 - \sigma\sqrt{T} \]Substitute the value of \( d1 \): \[ d2 = 0.7693 - 0.30\sqrt{0.25} \]Calculating gives: \[ d2 \approx 0.6193 \]
04

Find N(d1) and N(d2)

Find the cumulative standard normal distribution values for \( d1 \) and \( d2 \): \( N(d1) \approx 0.7794 \) and \( N(d2) \approx 0.7324 \).
05

Calculate the Call Option Price

Use the Black-Scholes formula for a European call option:\[ C = S \cdot N(d1) - K \cdot e^{-rT} \cdot N(d2) \]Substitute the values:\[ C = 52 \times 0.7794 - 50 \times e^{-0.12\times0.25} \times 0.7324 \]Calculating gives:\[ C \approx 4.82 \]

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

Black-Scholes Formula
The Black-Scholes Formula is a crucial mathematical model used in financial markets to price European call and put options. This formula helps investors understand how options are priced in terms of their underlying assets, strike price, volatility, time to expiration, and risk-free interest rates.
The formula involves several key elements:
  • Current stock price (\(S\))
  • Strike price (\(K\))
  • Risk-free interest rate (\(r\))
  • Volatility (\(\sigma\))
  • Time to maturity (\(T\))
It essentially uses these elements to derive values \( d1 \) and \( d2 \), which represent standardized variables in the form of a normal distribution. These help in computing the option's expected price. The formula for a call option is:\[ C = S \cdot N(d1) - K \cdot e^{-rT} \cdot N(d2) \]Where \( N(d1) \) and \( N(d2) \) are the cumulative distribution functions of the standard normal distribution.
Understanding the Black-Scholes Formula provides a foundation for more complex financial and quantitative analysis.
Options Pricing
Options Pricing is the process of determining the premium or price of an option contract based on several factors. In the context of European call options, the Black-Scholes Formula serves as a popular model for this purpose.
The primary factors influencing options pricing include:
  • Current stock price compared to the strike price
  • Time remaining until expiration
  • The volatility of the stock's returns
  • Prevailing risk-free interest rates
These factors contribute to the intrinsic value and time value of the option. Intrinsic value is computed as the difference between the underlying asset's market price and the exercise price of the option, while the time value considers the potential for future volatility in the asset's price.
Accurate options pricing is critical for investors, as it helps them make informed decisions about buying, selling, and hedging their positions in the market.
Financial Mathematics
Financial Mathematics is a field that applies mathematical methods to solve problems in finance. It is instrumental in creating models like the Black-Scholes Formula that are used by investors worldwide.
This field focuses on quantitative analysis and employs statistical and probability theory to predict market behaviors. Financial mathematics helps in understanding:
  • Pricing of derivatives and financial instruments
  • Risk management strategies
  • Investment and trading decisions
By using rigorous mathematical models, financial mathematics enables the evaluation of financial risks and potential returns associated with various investment options. The consistency and reliability of these models contribute significantly to the financial industry's ability to offer complex derivative products like options and futures.
Quantitative Finance
Quantitative Finance is a discipline that leverages mathematical techniques and statistical analyses to address financial questions and problems.
This area encompasses the analysis of financial markets and instruments using models that predict economic trends. Quantitative finance experts use their expertise to innovate and create advanced trading strategies and hedging techniques. Key elements in this field include:
  • Development of algorithms for trading
  • Simulating market scenarios to optimize returns
  • Assessing risk exposure for financial portfolios
With an extensive data-driven approach, quantitative finance allows firms to anticipate market shifts and optimize investment portfolios based on risk and performance metrics. For budding finance enthusiasts, a strong grasp of quantitative methods can open doors to lucrative career opportunities in areas like asset management, risk analysis, and algorithmic trading.

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Most popular questions from this chapter

The notes accompanying a company's financial statements say: "Our executive stock options last 10 years and vest after 4 years. We valued the options granted this year using the Black-Scholes model with an expected life of 5 years and a volatility of \(20 \%\)." What does this mean? Discuss the modeling approach used by the company.

What does the Black-Scholes stock option pricing model assume about the probability distribution of the stock price in one year? What does it assume about the continuously compounded rate of return on the stock during the year?

Consider an option on a non-dividend-paying stock when the stock price is \(\$ 30,\) the exercise price is \(\$ 29,\) the risk-free interest rate is \(5 \%\) per annum, the volatility is \(25 \%\) per annum, and the time to maturity is four months. a. What is the price of the option if it is a European call? b. What is the price of the option if it is an American call? c. What is the price of the option if it is a European put? d. Verify that put-call parity holds.

A stock price is currently \(\$ 50 .\) Assume that the expected return from the stock is \(18 \%\) per annum and its volatility is \(30 \%\) per annum. What is the probability distribution for the stock price in two years? Calculate the mean and standard deviation of the distribution. Determine the \(95 \%\) confidence interval.

A portfolio manager announces that the average of the returns realized in each of the last 10 years is \(20 \%\) per annum. In what respect is this statement misleading?

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