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Security (finance)

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A security is a tradable financial asset. It serves as a vital tool for raising capital. Capital is the money used by businesses to grow.

Governments also use securities to increase their debt. The specific legal definition of a security varies by country. In the United Kingdom, the Financial Conduct Authority regulates these markets. They define securities to include equities, debentures, and various pension schemes.

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Flag of the United Kingdom (1-2)

In the United States, the definition is much broader. It covers almost any tradable financial asset. This includes debt, equity, and complex tools called derivatives.

Securities function through a relationship between an issuer and an investor. The issuer is the company or government entity. They create the security to obtain funds. Investors purchase these instruments to earn income or capital gains.

A person might buy a security to receive interest. Another might buy it to own a part of a company. Most modern securities are non-certificated. This means they are electronic or "book entry only." They exist as digital records rather than paper. Some are bearer securities, which belong to whoever holds them. Others are registered, meaning the owner is listed on an official register.

Debt securities are one primary category. These act like loans provided to an issuer. The holder is entitled to principal and interest payments.

Debt can be secured by collateral or unsecured. Unsecured debt may be "senior," meaning it has priority during bankruptcy. "Subordinated" debt has a lower priority. Different names describe debt based on its maturity. Debentures have long maturities, often over ten years. Notes have shorter terms. Commercial paper is a very short-term debt, lasting under 270 days. Some debt is highly liquid, meaning it can be turned into cash quickly. These are often called "near cash" instruments.

Equity securities represent ownership in an entity. A shareholder owns a fractional part of a company or trust.

Common stock is the most frequent type of equity. Preferred equity is another form. Unlike debt holders, equity holders do not receive regular interest. Instead, they may receive a portion of the profits. Equity also provides a pro rata portion of control. This means majority owners can often control the issuer. In a bankruptcy, equity holders are paid last. They only receive the residual interest after all creditors are settled. This allows for significant "upside" if the company succeeds.

Hybrid securities combine features of both debt and equity. Preference shares sit between these two main types. They offer interest or capital returns before ordinary shareholders.

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Flag of Australia (converted)

Convertibles are another hybrid. These are bonds or preferred stocks that can turn into ordinary shares. This change can happen at the holder's choice. Sometimes, an issuer can force a conversion through a "callable bond." Equity warrants are also hybrids. A warrant allows a holder to buy shares at a specific price. This happens within a set timeframe. Warrants increase the total number of shares outstanding in a company.

Different types of organizations issue various government bonds. Sovereign governments issue medium or long-term debt. In the U.S., these are called treasuries.

Treasuries are low-risk and help manage the money supply. Sub-sovereign bonds, like municipal bonds, come from states or cities. Supranational bonds are issued by international groups. Examples include the World Bank and the International Monetary Fund. These organizations use bonds to fund global projects. This hierarchy of debt helps stabilize different levels of the global economy.

Investors are categorized by how they trade. Retail investors are members of the public. They invest for themselves personally.

Flag of the United Kingdom (1-2)
Flag of the United Kingdom (1-2)

Wholesale investors involve large financial institutions. This includes investment banks, insurance companies, and pension funds. Wholesale trading involves much larger volumes of money. These institutions often act as underwriters or broker-dealers. Securities also serve as collateral for loans. This is known as "buying on margin" when using borrowed money. Using securities as collateral helps manage risk in institutional lending.

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