Options Glossary

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Gamma

The degree by which the delta changes with respect to changes in the underlying instrument's price.

Gap

A day in which the daily range is completely above or below the previous day's daily range.

Going Ahead

Unethical brokerage activity whereby the broker trades first for his or her own account before filling the customer's order(s).

Go Long

To buy securities, options or futures.

Good Til' Canceled Order (GTC)

Sometimes simply called "GTC", it means an order to buy or sell stock that is good until you cancel it.

Go Short

To sell securities, options or futures.

Guts

A strangle where the call and the put are in-the-money.