G10

G7 plus Belgium, Netherlands and Sweden, a group associated with IMF discussions. Switzerland is sometimes peripherally involved.

G5

The five leading industrial countries - US, Germany, Japan, France, UK.

G7

The seven leading industrial countries, being US , Germany, Japan, France, UK, Canada, Italy.

Gamma

The rate at which a delta changes over time or for one unit change in the price of the underlying asset.

GNP Deflator

Removes inflation from the GNP figure. Usually expressed as a percentage and based on an index figure.

GNP Gap

The difference between the actual real GNP and the potential real GNP. If the gap is negative an economy is overheated.

Gold Standard

The original system for supporting the value of currency issued. This system was in vogue before 1973 when the fixed exchange rates were prevalent.

Gross Domestic Product

Total value of a country's output, income or expenditure produced within the country's physical borders.

Gross National Product

Gross domestic product plus " factor income from abroad" - income earned from investment or work abroad.

GTC "Good Till Cancelled"

An order left with a dealer to buy or sell at a fixed price. The order remains in place until it is cancelled by the client.