SIC Code - Standard Industrial Classification (SIC) code. A numbering system established by the U.S. Office of Management and Budget that identifies companies by industry. SIC codes are used to group companies and to promote the comparability of economic factors from various areas of the U.S. economy.
Security

The general name for stocks and shares of all types. A security is a financial instrument that shows that you own shares in a company (by owning stocks), have loaned money to a company, government, or municipality (by investing in bonds), or have rights to future ownership (as with options or warrants).