In financial terminology, stock is the capital raised by a corporation, through the issuance and sale of shares. A shareholder is any person or organization which owns one or more shares of a corporation's stock. The aggregate value of a corporation's issued shares is its market capitalization.
In the United Kingdom, the word stock has a completely different meaning in finance, referring to a bond. It can also be used more widely to refer to all kinds of marketable securities. However, the usage of "share" (as in the stock issued by a corporation) is the same.
The innovation of joint ownership made a great deal of Europe's economic growth possible following the middle ages. The technique of pooling capital to finance the building of ships, for example, made the Netherlands a maritime superpower. Before the widespread adoption of the joint-stock corporation, an expensive venture such as building a merchant ship could only be undertaken by governments or by very wealthy individuals or families.
By selling shares they can sell part or all of the company to many part-owners. The purchase of one share entitles the owner of that share to literally share in the ownership of the company a fraction of the decision-making power, and potentially a fraction of the profits, which the company may issue as dividends.
In the common case, where there are thousands of shareholders, it is impractical to have all of them making the daily decisions required in the running of a company. Thus, the shareholders will use their shares as votes in the election of members of the board of directors of the company.
Each share constitutes one vote (except in a co-operative society where every member gets one vote regardless of the number of shares they hold). Owning the majority of the shares allows other shareholders to be out-voted - effective control rests with the majority shareholder (or shareholders acting in concert). In this way the original owners of the company often still have control of the company.
In most countries, including the United States, boards of directors and company managers have a fiduciary responsibility to run the company in the interests of its stockholders. Nonetheless, as Martin Whitman writes:
Even though the board of directors runs the company, the shareholder has some impact on the company's policy, as the shareholders elect the board of directors. Each shareholder typically has a percentage of votes equal to the percentage of shares he or she owns. So as long as the shareholders agree that the management (agent) are performing poorly they can elect a new board of directors which can then hire a new management team. In practice, however, genuinely contested board elections are rare. Board candidates are usually nominated by insiders or by the board of the directors themselves, and a considerable amount of stock is held and voted by insiders.
Owning shares does not mean responsibility for liabilities. If a company goes broke and has to default on loans, the shareholders are not liable in any way. However, all money obtained by converting assets into cash will be used to repay loans and other debts first, so that shareholders cannot receive any money unless and until creditors have been paid (most often the shareholders end up with nothing).
There are many different stock brokers from which to choose such as full service brokers or discount brokers. The full service brokers usually charge more per trade, but give investment advice or more personal service; the discount brokers offer little or no investment advice but charge less for trades. Another type of broker would be a bank or credit union that may have a deal set up with either a full service or discount broker.
There are other ways of buying stock besides through a broker. One way is directly from the company itself. If at least one share is owned, most companies will allow the purchase of shares directly from the company through their investor's relations departments. However, the initial share of stock in the company will have to be obtained through a regular stock broker. Another way to buy stock in companies is through Direct Public Offerings which are usually sold by the company itself. A direct public offering is an initial public offering in which the stock is purchased directly from the company, usually without the aid of brokers.
When it comes to financing a purchase of stocks there are two ways: purchasing stock with money that is currently in the buyers ownership or by buying stock on margin. Buying stock on margin means buying stock with money borrowed against the stocks in the same account. These stocks, or collateral, guarantee that the buyer can repay the loan; otherwise, the stockbroker has the right to sell the stocks (collateral) to repay the borrowed money. He can sell if the share price drops below the margin requirement, at least 50 percent of the value of the stocks in the account. Buying on margin works the same way as borrowing money to buy a car or a house using the car or house as collateral. Moreover, borrowing is not free; the broker usually charges 8-10 percent interest.
As with buying a stock, there is a transaction fee for the broker's efforts in arranging the transfer of stock from a seller to a buyer. This fee can be high or low depending on which type of brokerage, discount or full service, handles the transaction.
After the transaction has been made, the seller is then entitled to all of the money. An important part of selling is keeping track of the earnings. Importantly, on selling the stock, in jurisdictions that have them, capital gains taxes will have to be paid on the additional proceeds, if any, that are in excess of the cost basis.
Co-production between technology and society has led the push for effective and efficient ways of trading. Technology has allowed the stock market to grow tremendously, and all the while society has encouraged the growth. Within seconds of an order for a stock, the transaction can now take place. Most of the recent advancements with the trading have been due to the Internet. The Internet has allowed online trading. In contrast to the past where only those who could afford the expensive stock brokers, anyone who wishes to be active in the stock market can now do so at a very low cost per transaction. Trading can even be done through Computer-Mediated Communication (CMC) use of mobile devices such as handheld computers and cellular phones. These advances in technology have made day trading possible.
The stock market has grown so that some argue that it represents a country's economy. This growth has been enjoyed largely to the credibility and reputation that the stock market has earned.
A stock derivative is any financial claim which has a value that is dependent on the price of the underlying stock. Futures and options are the main types of derivatives on stocks. The underlying security may be a stock index or an individual firm's stock, e.g. single-stock futures.
Stock futures are contracts where the buyer, or long, takes on the obligation to buy on the contract maturity date, and the seller, or short takes on the obligation to sell. Stock index futures are generally not delivered in the usual manner, but by cash settlement.
A stock option is a class of option. Specifically, a call option is the right (not obligation) to buy stock in the future at a fixed price and a put option is the right (not obligation) to sell stock in the future at a fixed price. Thus, the value of a stock option changes in reaction to the underlying stock of which it is a derivative. The most popular method of valuing stock options is the Black Scholes model //www.tradingtoday.com/black-scholes.
Apart from call options granted to employees, most stock options are transferable.
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