Option Pricing Theory

AAA

DEFINITION of 'Option Pricing Theory'

Any model- or theory-based approach for calculating the fair value of an option.

The most commonly used models today are the Black-Scholes model and the binomial model. Both theories on options pricing have wide margins for error because their values are derived from other assets, usually the price of a company's common stock. Time also plays a large role in option pricing theory, because calculations involve time periods of several years and more. Marketable options require different valuation methods than non-marketable ones, such as those given to company employees.

INVESTOPEDIA EXPLAINS 'Option Pricing Theory'

How stock options should be valued has become an important debate in the past few years because U.S. companies are now required to expense the cost of employee stock options on their earnings statements. For many young companies trading on the stock exchanges today, this expense will be considerable no matter what valuation methods are used. The need for consistent and accurate treatment of this increasing expense provides incentive for the creation of new and innovative solutions to option pricing theory.

RELATED TERMS
  1. Gamma Pricing Model

    An equation for determining the fair market value of a European-style ...
  2. Decision Tree

    A schematic tree-shaped diagram used to determine a course of ...
  3. Tree Diagram

    A diagram used in strategic decision making, valuation or probability ...
  4. Black Scholes Model

    A model of price variation over time of financial instruments ...
  5. Black's Model

    A variation of the popular Black-Scholes options pricing model ...
  6. Binomial Option Pricing Model

    An options valuation method developed by Cox, et al, in 1979. ...
RELATED FAQS
  1. Why would a company issue a rights offering?

    Companies most commonly issue a rights offering to raise additional capital. A company may need extra capital to meet its ... Read Full Answer >>
  2. What is the difference between share purchase rights and options?

    There is a big difference between share purchase rights and options. With share purchase rights, the holder may or may not ... Read Full Answer >>
  3. What is the difference between an option-adjusted spread and a Z-spread in reference ...

    Unlike the Z-spread calculation, the option-adjusted spread takes into account how the embedded option in a bond can change ... Read Full Answer >>
  4. In what ways can a sinking fund affect bond returns?

    The effective yield of a bond sinking fund to an investor should not be considered similar to a bond nonsinking fund. Both ... Read Full Answer >>
  5. Can delta be used to calculate price volatility of an option?

    The delta of an option is a component of the Black-Scholes option pricing formula, which provides the implied volatility ... Read Full Answer >>
  6. What is the difference between a banker's acceptance and a post-dated check?

    Some common financial instruments that speculators use are stocks and financial derivatives. Speculation involves trading ... Read Full Answer >>
Related Articles
  1. Investing Basics

    Pin Down Stock Price With Real Options

    How can you assign a value to what a company may do with its business in the future? We explain how it works.
  2. Options & Futures

    The "True" Cost Of Stock Options

    Perhaps the real cost of employee stock options is already accounted for in the expense of buyback programs.
  3. Options & Futures

    The Ins And Outs Of Selling Options

    Selling options can seem intimidating but with these tips, you can enter the market with confidence.
  4. Bonds & Fixed Income

    Accounting and Valuing Employee Stock Options

    Learn the different accounting and valuation treatments of ESOs, and discover the best ways to incorporate these techniques into your analysis of stock.
  5. Investing

    What More Volatility Means For Momentum Stocks

    One byproduct of the recent tick higher in bond yields: a meaningful rise in volatility for both stocks and bonds.
  6. Options & Futures

    How & Why Interest Rates Affect Options

    The Fed is expected to change interest rates soon. We explain how a change in interest rates impacts option valuations.
  7. Investing Basics

    Understanding Notional Value

    This term is commonly used in the options, futures and currency markets because a very small amount of invested money can control a large position.
  8. Options & Futures

    The Risks Of Writing Covered Calls

    While writing a covered call option is less risky than writing a naked call option, the strategy is not entirely riskfree.
  9. Options & Futures

    How Low Can Oil Prices Go?

    Record low oil prices are a welcome development for consumers, but oil companies are struggling with choosing market share over profitability.
  10. Options & Futures

    SEC-Regulated Options Brokers

    Investopedia provides a List Of SEC-Regulated Options Brokers

You May Also Like

Hot Definitions
  1. Yield Curve

    A line that plots the interest rates, at a set point in time, of bonds having equal credit quality, but differing maturity ...
  2. Productivity

    An economic measure of output per unit of input. Inputs include labor and capital, while output is typically measured in ...
  3. Variance

    The spread between numbers in a data set, measuring Variance is calculated by taking the differences between each number ...
  4. Terminal Value - TV

    The value of a bond at maturity, or of an asset at a specified, future valuation date, taking into account factors such as ...
  5. Rule Of 70

    A way to estimate the number of years it takes for a certain variable to double. The rule of 70 states that in order to estimate ...
  6. Risk Premium

    The return in excess of the risk-free rate of return that an investment is expected to yield. An asset's risk premium is ...
Trading Center