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Extrinsic Value: this is what makes stock options so risky...

The extrinsic value (time value) of an option is the dollar value that is placed on the remaining life of the option.

Extrinsic or time value is similar to how the life insurance industry attaches a dollar figure to the estimated remaining years of your life. This dollar figure is what they use to create your insurance "premium".

It's slightly more complicated than that, but I think you get the point.

Well the time left until a stock option expires is given a dollar value and this is placed into the "premium" (cost) of the option along with the 5 other factors that we discussed in the stock option valuation lesson.

Extrinsic Value is also called time value. You will hear both terms used.

Extrinsic Value and its Effect on Option Pricing...

Simply put, here is the effect that time value has on option price: the longer the time until expiration, the greater the cost of the option. An option with more days left until expiration will cost more than an option with fewer days left until expiration. 

An option with three months left until expiration has more time than an option that expires in two weeks.

There is a greater chance the stock will move significantly over the span of three months then it will in two weeks (so you're essentially paying for that time).

Below is a snapshot of an option chain showing you how the cost of the option increases the further out in "time" (expiration month) you go.

The picture is of an IBM 95 Call Option. The strike price is $95. The arrows point to the cost of the February 95, March 95, April 95, and July 95 Call option.

Extrinsic Value and Time Value

What Happens if the Stock Doesn't Move?

Suppose you buy an option with 3 months left until expiration. You have paid for 3 months worth of time.

If the stock doesn't move for a month and stays at the same price, then the value of your option will be worth less then when you bought it (it will decrease in value).

This is because the time value has been eroding away.

You now have only two months of value left in the options price. This is called: time decay.

This is also why options are often called "wasting assets", and is part of what makes them risky.

With stocks you can hold onto them forever waiting for them to move in the desired direction. With options, the moment you buy them the clock starts ticking. The stock "must" move, or you will start losing money.

As a trader you have to be disciplined and thorough in your research. You want to pick the best stocks poised to make a move in a relatively short period of time.

In the video portion of this lesson...

  • You'll learn why options are called "wasting assets"...
  • You'll learn why time value makes options trading risky...
  • And you'll learn a few tips on how to avoid this risk...

Products Created by Trader Travis

Options Trading Made Simple Book

Options Trading Made Simple Course

Marketclub Options (offered via Marketclub)

Free Options Course Learning Modules

Module 1: Option Basics

Module 2: Option Value

Module 3: Basic Strategies

Module 4: Stock Charts

Module 5: Technical Indicators

Module 6: The 7-step process I use to trade stock options

Return to Learn Stock Options Trading Home Page

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