Global Custodian Custodian who offers international services through a network of sub-custodian (agent) banks.
Globalization of Financial Markets Tendency toward a worldwide investment environment, and the integration of national capital markets.
Good - Till - Cancelled (GTC)  An order that remains valid until its cancellation.
Gross Domestic Product (GDP)  The market value of final goods and services produced over time including the income of foreign corporations and foreign residents working in the country, but excluding the income of the country residents and corporations overseas.
Gross National Product (GNP) Total value of all goods and services produced in a given country, including the income accruing to domestic residents that result from investments abroad.
Group of Thirty (G-30) An international economic consortium which studies world- wide economic situations and makes recommendations to benefit the world economy. 
Guardian An individual who, by legal appointment or by the effect of a written law, is given custody of a minor or an incompetent person and his or her ownership.