Need to Know Options Terms

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Call Option
A contract that gives the holder the right to buy the underlying for the strike price any time until expiry.

Put Option
A contract that gives the holder the right to sell the underlying for the strike price any time until expiry.

Strike Price (Exercise Price)
The price that the underlying asset will be bought or sold at if an option contract is exercised.

Premium
A premium is the price that is paid for an option contract.

Underlying
The underlying is something which an option contract is based on. This could be a stock, index, foreign currency, interest rate, or a futures contract. The underlying is commonly referred to as the: underlying interest, underlying asset, underlying security, or the underlying stock.

Writer
A writer is someone who sold an option contract to open a position. The writer is the person who is taking on the risk, (underwriting the risk). Someone who sells an options contract they already own is not a writer, they are just closing an existing position. An option writer is said to be "short" the option they wrote.

Holder
The holder is the person who bought an option contract. Someone who buys an option they previously wrote is not a holder, they are just closing an existing position. An option holder is said to be "long" the option they bought.

Long
If you own a security you are said to be long that security.

Short
If you sell a security that you didn't already own you are said to be short that security.

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