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Gamma:

The ratio of a change in the option delta to a small change in the price of the asset on which the option is written.

Gap:

A term used by technicians to describe a significant jump or drop in prices on the current opening price compared to the previous closing price. Significant gaps are usually related to market-moving news, which occurs overnight while a stock cannot be traded. Gaps are considered by technicians to be likely to be filled at a later date.

General Obligation Bond:

A municipal bond which is backed by the full faith and credit of a municipality. It includes the authority to raise taxes and/or borrow to pay back interest and principal. See BOND.

Ginnie Mae:

Nickname for the Government National Mortgage Association and the mortgage-backed securities it issues.

Global Bond Fund:

Mutual fund investing primarily in debt obligations (i.e., bonds) of foreign governments and/or corporations. Global bond funds can be subject to foreign currency exchange risks.

Gold:

A precious metal usually sought during times of rapidly rising inflation.

Good 'Til-Canceled (open) Order (GTC):

An order that does not expire at the end of the day it is entered. Instead, it remains in force until it is either executed or canceled. Customers are responsible for keeping track of their GTC or open orders.

Gross Domestic Product (GDP):

A measure of the economy which includes the value of all products and services produced by a nation in a given year. The growth rate of GDP is used to compare the economic progress of various nations.

Gross Profit:

Numerical term on an income statement that represents the subtraction of costs of goods sold from revenues. It shows how much the company would have made if it did not have any other expenses or taxes.

Growth and Income Funds:

Mutual funds that invest in companies whose earnings are expected to grow, but which still pay good dividends. These funds may sacrifice some future profits in order to provide current income.

Guardian:

Someone authorized to manage the property or person of another who is incapable of managing his or her property on account of age, lack of understanding, or lack of self-control.