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Stock Options

Updated on February 6, 2016
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Philip retired from investment banking to write. To date he has written 9 books on trading forex, 3 short stories, and one poetry book.

Introduction to Stock Options

Stock options trading is very potent as well as being very multifaceted and can be extremely dangerous if you don’t know what you are doing. Now I have probably frightened you off. Don’t go away yet. The good news is that you can also make a lot of money trading options with very little capital outlay. There are some millionaires out there who started out with $10,000. In fact you can indulge in online options trading with as little as $100.

There are several types of option contracts traded in the financial markets. The most common for retail investors are currency options (sometimes called forex options) and stock options (sometimes called equity options), it is also possible to trade futures options, commodity options, and index options. In this particular article we are going to look at stock options trading. However, this is not to be taken as advice so that you can go away and trade options. This is meant to see if you like the idea of trading options and to give you some basic options trading knowledge.

A Picture Paints a Thousand Words
A Picture Paints a Thousand Words

What is an option?

An option contract is an agreement between two parties to buy or to sell an asset (a stock) at a fixed price and at a fixed date in the future.

This financial instrument is called an option because the buyer has the right but not the obligation to carry out the transaction. If, over the life of the contract, the asset value decreases, the buyer can simply decide not to exercise his or her right to buy or sell the asset.

There are two types of option contracts:

 

Call options gives the buyer the right to buy the underlying asset.

Put options gives the buyer the right to sell the underlying asset.

Example of a call option

ABC Corp buys a call option contract from XYZ Corp. In the real world the parties trading in an options contract would not know who their counterparty was, however, in this example we have simplified things. The contract says that ABC Corp will buy 200 Mobile Oil shares from XYZ Corp on the 7th October for $20. The current share price for Mobile Oil shares is $21.Now ABC corp is not actually buying anything as no asset will exchange hands until the stock option expiry date which is October 7th, when ABC Corp will decide whether to exercise the option at the strike price of $20 or to let the stock option lapse.

The option itself is not for 1 Mobile Oil share. Each exchange which trade in stock options have their own options multiplier. For most exchanges each option contract is worth 100 shares. So ABC Corp has bought a call stock option giving it the right to buy 100 shares of Mobile Oil at $20 per share on the 7th October. Now there is a price for an option which is called the option premium. Let's say that for Mobile Oil stock options the option premium or option price is 10c a share. ABC Corp would have to pay the option seller XYZ Corp 100x10c=$10. Whether or not ABC Corp took up the option or not the amount of the premium would be kept by the option seller XYZ Corp.

If on the 7th October the call option buyer ABC Corp decided to take up the option because the price of Mobile Oil shares were $22 each on the open market, they would pay the option seller 100x$20=$2,000 and you could then sell the 100 Mobile Oil shares in the market for 100x$22=$2,200 a profit of $190. Why $190? Well don't forget ABC Corp has already paid the premium of $10 to XYZ Corp. Okay let's see what we have done.

  • ABC Corp bought one call option for 10c (option price) 100x10c=$10
  • The option strike price was $20 per share
  • Expiry date 7th October
  • Underlying share price on 7th October $22
  • ABC Corp exercises their right and buys one call option (100 shares) for $2000
  • ABC Corp sells 100 shares in the open market at $22 per share netting $2,200
  • Profit to ABC Corp = $2,200 - $2,000 - $10 = $190

The risk to ABC Corp was $10 and they had an unlimited profit potential as the share price moves upwards. The difference between the strike price and the underlying price of the share is called the intrinsic value and the option is said to be in the money when the underlying share price is above the strike price. If the underlying share price is below the strike price for a bought call option the option is said to be out of the money.

Stock Options - Who uses them?

There are mainly two types of people who trade in stock options. The first type is the risk seeker or speculator and the second type is the opposite, the people that want to avoid risk. They are called hedgers.

Speculators

These are people who try and predict the markets movements after lengthy analysis and virtually bet on a market trend. This is why options are considered very risky. Big money can be made with speculation and so can big losses. Speculators have to be certain in their predictions as to whether the markets going up or down. Speculators like options because the leverage is good. A small movement in the stock market can make a speculator a lot of money because all they have paid is the premium.

Hedgers

By far the biggest reason for using stock options and the reason that options were invented anyway is that companies like ABC Corp or even individuals such as yourselves can buy an insurance (hedge) against any adverse movement in the stock markets.

For example say that ABC Corp were worried about the share price of a company that they had invested in, thinking that the share price would probably go down. ABC Corp could buy a put option, the opposite of a call option in that they have the right but not the obligation to sell the option at the agreed strike price. Say they bought 10 put options at a strike price of $30 with a premium of $1 per share. The underlying stock price in the market is $29. At the expiry date the share price of the company was $20 and ABC Corp stood to lose $9 per share they owned. However, if they exercised their put option they would go to the market and buy 1000 shares at $20 and use them to put (sell) the shares at $30 because they have the right to do so. They would receive 100x10x30=30,000 less the premium (insurance) paid of $1,000. So they have $29,000 in cash to offset the $20,000 they used to purchase the shares they bought at $20 and the loss of the shares they own of $9,000.

So their strategy worked and they had the perfect hedge. They did not gain or lose a cent.

Stock Options - Where are they traded?

All options whether stock options or currency options are traded either on a public stock exchange (ETO) the option is known as an exchange traded option and is listed and standardized by the stock exchange. Exchange Traded Options have also standardized expiry months. The rules imposed by the exchange cannot be change for exchange traded options.

The second form of option is the over the counter option or OTC. These options are traded between traders of large institutions and are generally non standard options which have their own particular rules.

In this article and others we are mainly discussing exchange traded options.

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      indian stock market tips 

      6 years ago

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    • profile image

      Gold Silver Tips 

      6 years ago

      I really appreciate your post and you explain each and every point very well.Thanks for sharing this information.And I?ll love to read your next post too.

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      Gold Silver Tips

    • profile image

      Share Market 

      6 years ago

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    • one2get2no profile imageAUTHOR

      Philip Cooper 

      7 years ago from Olney

      Thank you ...:)

    • profile image

      share tips 

      7 years ago

      Very good post, I was really searching for this topic, as I wanted this topic to understand completely and it is also very rare in internet, that is why it was very difficult to understand.

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    • profile image

      share tips 

      7 years ago

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