Security

From Nemo

A security is generally a fungible, negotiable financial instrument representing financial value.

Securities are broadly categorized into:

debt securities (such as banknotes, bonds and debentures),
equity securities, e.g., common stocks; and,
derivative contracts, such as forwards, futures, options and swaps.

The company or other entity issuing the security is called the issuer. A country's regulatory structure determines what qualifies as a security. For example, private investment pools may have some features of securities, but they may not be registered or regulated as such if they meet various restrictions.

Securities may be represented by a certificate or, more typically, "non-certificated", that is in electronic or "book entry" only form. Certificates may be bearer, meaning they entitle the holder to rights under the security merely by holding the security, or registered, meaning they entitle the holder to rights only if he appears on a security register maintained by the issuer or an intermediary. They include shares of corporate stock or mutual funds, bonds issued by corporations or governmental agencies, stock options or other options, limited partnership units, and various other formal investment instruments that are negotiable and fungible.

The securities markets

Public offer and private placement

In the primary markets, securities may be offered to the public in a public offer. Alternatively, they may be offered privately to a limited number of qualified persons in a private placement. Sometimes a combination of the two is used. The distinction between the two is important to securities regulation and company law. Privately placed securities are not publicly tradable and may only be bought and sold by sophisticated qualified investors. As a result, the secondary Export Marketing or market is not nearly as liquid as it is for public (registered) securities.

Another category, sovereign bonds, is generally sold by auction to a specialized class of dealers.