What Is Option Trading?

An option is a contract that gives the owner the right, but not the obligation, to buy or sell a security at a particular price on or before a certain date.
Investors buy and sell options just like stocks. There are two basic types of options:

• The call option
  
• The put option

The Call Option

The call option is the right to buy the underlying security at a certain price on or before a certain date.



You would buy a call option if you anticipated the price of the underlying security was going to rise before the option reached expiration. For example:

Company XYZ in trading at $25 per share and you believe the stock is headed up. You could buy shares of
the stock or you could buy a call option. Say a call option that gives you the right, but not the obligation, to buy 100 shares of XYZ anytime in the next 90 days for $26 per share could be purchased for $100.

If you are right and the stock rises to $30 per share before option expires, you could exercise your option and buy 100 shares at $26 per share and sell them for an immediate profit of $3 per share ($30 - $26 = $4 - $1 for the option = $3 per share profit).

You could also simply trade the option for a profit without actually buying the shares of stock.

If you had figured wrong and the stock went nowhere or fell from the original $26 per share to $24 per share, you would simply let the option expire and suffer only a $100 loss (the cost of the option).

The Put Option

The put option is the right to sell the underlying security at a certain price on or before a certain date.
You would buy a put option if you felt the price of a stock was going down before the option reached expiration.

Continuing with out XYZ example, if you felt the stock was about to tank from $25 per share, the only way to profit would be to short the stock, which can be a risky move if you’re wrong. See Short Selling - Not for the Faint Hearted.


You could purchase a put option at $24 per share for $100 (or $1 per share), which would give you the right to sell 100 shares of XYZ at $24 per share.

If the stock drops to $19 per share, you could, in theory buy 100 shares on the open market for $19 per share, then exercise you put option giving you the right to sell the stock at $24 per share – making a $5 per share profit, minus the option cost.

As a practical matter, you would trade your put option, which would now be worth something close to $5 per share or $500.

Basic Option Facts

Here are some quick facts about options:

• Options are quoted in per share prices, but only sold in 100 share lots. For example, a call option might be quoted at $2, but you would pay $200 because options are always sold in 100-share lots.
  
• The Strike Price (or Exercise Price) is price the underlying security can be bought or sold for as detailed in the option contract. You identify options by the month they expire, whether they are a put or call option, and the strike price. For example, an “XYZ April25 Call” would be a call option on XYZ stock with a strike price of 25 that expires in April.
  
• The Expiration Date is the month in which the option expires. All options expire on the third Friday of the month unless that Friday is a holiday, then the options expire on Thursday.

Conclusion

This quick overview of options gives you an idea of what they are all about, but it is the very tip of the proverbial iceberg. Options are not for the beginning investor, but do offer advanced traders another tool for their investment arsenal.

Note: All option quotes in this article are for illustration only. Pricing of options is a complicated process involving many factors.

The Source:
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Comment:
The above article is reposted just here from About.com. The original article is posted by its original author. I have studied the ideas above and i found out that this is what my mentor taught my about Online Stock Option Trading. I joined this kind of business even with the little knowledge that i have. Yes, i know this is the game of the rich, though im not one, i see this Online Stock Option Trading as great tool in achieving our dreams. But after a few months of investing, i learned my lesson: "We cannot make trades on impulse, we have to study all aspects, events and news that can affect a certain stock and we should listen to the message that these things give to us." Another thing, when in doubt, do not trade. About a few months ago, i stopped engaging in Online Stock Option Trading to try to think and study what made me fail. Now, im ready to face the challenge again, right now, im starting to go over my notes in Online Stock Option Trading and sooner I'll be back in business with help from my friends.

There are a lot of platforms or website wherein you can make your Online stock option trading like the TD Ameritrade, Think or Swim, Trade King and etc.  You can also do online trading of stocks here, not only option...
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