Options Trading Terms G-M

View some options trading terms below. You can also view other stock trading terms that are helpful in this blog. Happy investing!

Gamma
The rate of change in an option.

Holder
The purchaser of an option.

Horizontal Spread
An option strategy in which the options have the same striking price, but different expiration dates.

Implied Volatility
A measure of the volatility of the underlying stock, it is determined by using option prices currently existing in the market at the time rather than using historical data on the price changes of the underlying stock.

Index Option
An option whose underlying entity is an index. Most index options are cash-based.

In-the-money
A term describing any option that has intrinsic value. A call option is in-the-money if the underlying security is higher than the striking price of the call. A put option is in-the-money if the security is below the striking price.

Intrinsic value
The value of an option if it were to expire immediately with the underlying stock at its current price; the amount by which an option is in-the-money. For call options, this is the difference between the stock price and the striking price, if that difference is a positive number, or zero otherwise.

Last Trading Day
The very last full day of open trading before an options expiration day, usually the third Friday of the expiration month.

LEAPS®
Long-term Equity Anticipation Securities, or LEAPS®, are long-term stock or index options. LEAPS®, like all options, are available in two types, calls and puts, with expiration dates up to three years in the future.

Leg
A risk-oriented method of establishing a two-sided position. Rather than entering into a simultaneous transaction to establish the position (a spread, for example), the trader first executes one side of the position, hoping to execute the other side at a later time and a better price. The risk materializes from the fact that a better price may never be available, and a worse price must eventually be accepted.

Listed Option
A put or call option that is traded on a national options exchange. Listed options have fixed striking prices and expiration dates.

Margin Requirement (for options)
The amount an uncovered (naked) option writer is required to deposit and maintain to cover a position. The margin requirement is calculated daily.

Married Put and Stock
The simultaneous purchase of stock and the corresponding number of put options. This is a limited risk strategy during the life of the puts because the stock can be sold at the strike price of the puts.

Married Put Strategy
A put and stock are considered to be married if they are bought on the same day, and the position is designated at that time as a hedge.

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