Security

Definition of 'Security'


A financial instrument that represents: an ownership position in a publicly-traded corporation (stock), a creditor relationship with governmental body or a corporation (bond), or rights to ownership as represented by an option. A security is a fungible, negotiable financial instrument that represents some type of financial value. The company or entity that issues the security is known as the issuer.

For example, the issuer of a bond issue may be a municipal government raising funds for a particular project. Investors of securities may be retail investors - those who buy and sell securities on their own behalf and not for an organization - and wholesale investors - financial institutions acting on behalf of clients or acting on their own account. Institutional investors include investment banks, pension funds, managed funds and insurance companies.

Investopedia explains 'Security'


Securities are typically divided into debt securities and equities. A debt security is a type of security that represents money that is borrowed that must be repaid, with terms that define the amount borrowed, interest rate and maturity/renewal date. Debt securities include government and corporate bonds, certificates of deposit (CDs), preferred stock and collateralized securities (such as CDOs and CMOs).

Equities represent ownership interest held by shareholders in a corporation, such as a stock. Unlike holders of debt securities who generally receive only interest and the repayment of the principal, holders of equity securities are able to profit from capital gains.

In the United States, the U.S. Securities and Exchange Commission (SEC) and other self-regulatory organizations (such as the Financial Industry Regulatory Authority) regulate the public offer and sale of securities.



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