Bid – The highest offered price at a specified time.

Black-Scholes Model – A theoretical method of pricing using strike price, market price, interest rates, expiration date and other factors.

Butterfly Spread – A trading strategy consisting of the purchase of two identical options, together with the sale of one option with a higher strike price, and one option with an lower strike price.

(All options are of the same type, have the same underlying asset and the same expiration date.)

Calendar Spread – A trading strategy consisting of one long and one short option of the same type with the same exercise price, but which expire in different months.

Call – An options contract conferring the right to buy an underlying asset, such as 100 shares of stock, at a pre-set price, by a specified date.

Condor – A trading strategy consisting of the sale (or purchase) of two options with consecutive exercise prices, together with the sale (or purchase) of one option with a lower exercise price and one option with a higher exercise price.

Covered Call – A trading strategy which consists of holding a long position in an asset and selling call options on that same asset.

Delta – A ratio comparing the change in the price of an option to that of a change in the underlying asset.

Exercise Price – See Strike Price

Hedge – A technique of reducing risk by taking positions which tend to move in opposite directions.

Historic Volatility – (See Volatility) Calculated by using the standard deviation of underlying asset price changes from close to close trading for the prior 21 days.

Holder – The buyer of an option. (See Writer)

In-the-Money – A (call/put) option is in-the-money if the strike price is (less/more) than the market price of the underlying security.

Intrinsic Value – The difference between the underlying asset’s price and the strike price. (For both puts and calls, if the difference is negative, the value is given as zero.)

Naked Option – An option written (sold) without a position in the underlying asset.

Option – A contract to buy (call) or sell (put) an underlying asset at a pre-set price by (’American style’) or on (’European style’) a specified date.

Open Interest – The total number of options contracts not closed or delivered on a given day.

Out-of-the-Money – An option whose exercise price has no intrinsic value.

Premium – The price an option buyer pays to an option seller.

Put – An option contract granting the right to sell an asset at a pre-set price within a specified time.

Straddle – A trading strategy consisting of a long (short) call and a long (short) put, in which both options have the same strike price and expiration date.

Strangle – A trading strategy consisting of a long (short) call and a long (short) put in which both options have the same expiration date, but different strike prices.

Strike Price – The price at which an underlying asset must be bought (call) or sold (put), if an option is exercised.

Time Value – The amount by which the current market price of a option exceeds its intrinsic value.

Volatility – A measurement of degree of change in price over a specified period of time.

Writer – The seller of either a call or put option.

Related posts:

1. Options: Values and Prices, Part I
2. Options: Values and Prices, Part II
3. Options: Hedging, Trim Risks Not Bushes
4. Options: Calls and Puts
5. Options: Blessed Are The Greeks Part I

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