Security (finance)
Securities are tradeable interests representing financial value. They are often represented by a certificate. They include shares of corporate stock or mutual funds, bonds issued by corporations or governmental agencies, stock options or other options, other derivative securities, limited partnership units, and various other formal "investment instruments." Banknotes, checks, and some bills of exchange do not fall into this category. Commodities like Oil, Food grains can also be referred to as Securities. One can enter into contracts to buy or sell various quantities of such commodity securities in various commodity exchanges.
Originally the term "securities" was used to denote security interests (such as mortgages and charges) supporting the payment of a debt or other obligation. In the early modern period, companies and government agencies began to raise capital from the public using secured debt oligations, which came to be known as "securities". As shares became more readily transferrable from the Victorian era, their functional similarity to debt securities became clearer, and both forms of investment became known as "securities". More recently, the term has also been extended to include units in investment funds and other forms of readily transferrable investment.
New issues of securities, including what is commonly known as an IPO, or Initial Public Offering, for new stock issues, are offered on the primary market. Securities that have already been issued may also be traded; this trading is called the aftermarket or secondary market. Secondary markets often consist of what is called an exchange to facilitate the meeting of buyers and sellers. They are often referred to as stock exchanges, even though there are exchanges such as the Chicago Board of Options Exchange where no stocks are traded.
In the United States, the offer and sale of securities is either registered pursuant to a registration statement that is filed with the Securities and Exchange Commission (SEC) or are offered and sold pursuant to an exemption therefrom. Dealing in securities is heavily regulated by both the federal authorities (chiefly SEC) and state authorities. In addition the industry is heavily self policed by Self Regulatory Organizations (SRO's), such as the NASD or the MSRB.
Regulatory
Due to the difficulty of creating a general definition that covers all securities, the SEC attempts to define "securities" exhaustively (and not very precisely) as: "any note, stock, treasury stock, security future, bond, debenture, certificate of interest or participation in any profit-sharing agreement or in any oil, gas, or other mineral royalty or lease, any collateral-trust certificate, preorganization certificate or subscription, transferable share, investment contract, voting-trust certificate, certificate of deposit for a security, any put, call, straddle, option, or privilege on any security, certificate of deposit, or group or index of securities (including any interest therein or based on the value thereof), or any put, call, straddle, option, or privilege entered into on a national securities exchange relating to foreign currency, or in general, any instrument commonly known as a "security"; or any certificate of interest or participation in, temporary or interim certificate for, receipt for, or warrant or right to subscribe to or purchase, any of the foregoing; but shall not include currency or any note, draft, bill of exchange, or banker's acceptance which has a maturity at the time of issuance of not exceeding nine months, exclusive of days of grace, or any renewal thereof the maturity of which is likewise limited." - Section 3a item 10 of the 1934 Act.