Stocks (also capital stock, or sometimes interchangeably, shares) consist of all the
shares by which ownership of a
corporation
A corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the State (polity), state to act as a single entity (a legal entity recognized by private and public law as ...
or company is divided.
A single share of the stock means fractional ownership of the corporation in proportion to the total number of shares. This typically entitles the
shareholder (stockholder) to that fraction of the company's earnings, proceeds from liquidation of assets (after discharge of all
senior claims such as secured and unsecured
debt
Debt is an obligation that requires one party, the debtor, to pay money Loan, borrowed or otherwise withheld from another party, the creditor. Debt may be owed by a sovereign state or country, local government, company, or an individual. Co ...
), or
voting power, often dividing these up in proportion to the number of like shares each stockholder owns. Not all stock is necessarily equal, as certain classes of stock may be issued, for example, without voting rights, with enhanced voting rights, or with a certain priority to receive profits or liquidation proceeds before or after other classes of
shareholders.
Stock can be bought and sold
privately or on
stock exchange
A stock exchange, securities exchange, or bourse is an exchange where stockbrokers and traders can buy and sell securities, such as shares of stock, bonds and other financial instruments. Stock exchanges may also provide facilities for ...
s. Transactions of the former are closely overseen by governments and regulatory bodies to prevent fraud, protect investors, and benefit the larger economy. As
new shares are issued by a company, the ownership and rights of existing shareholders are
diluted in return for cash to sustain or grow the business. Companies can also
buy back stock, which often lets investors recoup the initial investment plus
capital gains from subsequent rises in stock price.
Stock options issued by many companies as part of employee compensation do not represent ownership, but represent the right to buy ownership at a future time at a specified price. This would represent a windfall to the employees if the option were exercised when the market price is higher than the promised price, since if they immediately sold the stock they would keep the difference (minus taxes).
Stock bought and sold in private markets fall within the
private equity realm of finance.
Shares
A person who owns a percentage of the stock has the ownership of the corporation proportional to their share. The shares form a stock; the ''stock'' of a corporation is partitioned into
shares, the total of which are stated at the time of business formation. Additional shares may subsequently be authorized by the existing shareholders and issued by the company. In some jurisdictions, each share of stock has a certain declared
par value, which is a nominal accounting value used to represent the equity on the
balance sheet of the corporation. In other jurisdictions, however, shares of stock may be issued without associated par value.
Shares represent a fraction of
ownership in a business. A
business
Business is the practice of making one's living or making money by producing or Trade, buying and selling Product (business), products (such as goods and Service (economics), services). It is also "any activity or enterprise entered into for ...
may declare different types (or classes) of shares, each having distinctive ownership rules, privileges, or share values. Ownership of shares may be documented by issuance of a
stock certificate. A stock certificate is a legal document that specifies the number of shares owned by the
shareholder, and other specifics of the shares, such as the par value, if any, or the class of the shares.
In the
United Kingdom
The United Kingdom of Great Britain and Northern Ireland, commonly known as the United Kingdom (UK) or Britain, is a country in Northwestern Europe, off the coast of European mainland, the continental mainland. It comprises England, Scotlan ...
,
Republic of Ireland
Ireland ( ), also known as the Republic of Ireland (), is a country in Northwestern Europe, north-western Europe consisting of 26 of the 32 Counties of Ireland, counties of the island of Ireland, with a population of about 5.4 million. ...
,
South Africa
South Africa, officially the Republic of South Africa (RSA), is the Southern Africa, southernmost country in Africa. Its Provinces of South Africa, nine provinces are bounded to the south by of coastline that stretches along the Atlantic O ...
, and
Australia
Australia, officially the Commonwealth of Australia, is a country comprising mainland Australia, the mainland of the Australia (continent), Australian continent, the island of Tasmania and list of islands of Australia, numerous smaller isl ...
, ''stock'' can also refer, less commonly, to all kinds of
marketable securities.
Types
Stock typically takes the form of shares of either
common stock or
preferred stock. As a unit of ownership, common stock typically carries
voting rights that can be exercised in corporate decisions.
Preferred stock differs from common stock in that it typically does not carry voting rights but is legally entitled to receive a certain level of
dividend payments before any dividends can be issued to other shareholders.
[Zvi Bodie, Alex Kane, Alan J. Marcus, ''Investments'', 9th Ed., .] Convertible preferred stock is preferred stock that includes the ability of the holder to convert the preferred shares into a fixed number of common shares, usually any time after a predetermined date. Shares of such stock are called "convertible preferred shares" (or "convertible preference shares" in the UK).
New
equity issue may have specific legal clauses attached that differentiate them from previous issues of the issuer. Some shares of common stock may be issued without the typical voting rights, for instance, or some shares may have special rights unique to them and issued only to certain parties. Often, new issues that have not been registered with a securities governing body may be
restricted from resale for certain periods of time.
Preferred stock may be
hybrid by having the qualities of bonds of fixed returns and common stock voting rights. They also have preference in the payment of dividends over common stock and also have been given preference at the time of liquidation over common stock. They have other features of accumulation in dividend. In addition, preferred stock usually comes with a letter designation at the end of the security; for example, Berkshire-Hathaway
Class "B" shares sell under stock ticker BRK.B, whereas
Class "A" shares of ORION DHC, Inc will sell under ticker OODHA until the company drops the "A" creating ticker OODH for its "Common" shares only designation. This extra letter does not mean that any exclusive rights exist for the shareholders but it does let investors know that the shares are considered for such, however, these rights or privileges may change based on the decisions made by the underlying company.
Rule 144 stock
"
Rule 144 Stock" is an American term given to shares of stock subject to SEC Rule 144: Selling Restricted and Control Securities. Under Rule 144, restricted and controlled securities are acquired in unregistered form. Investors either purchase or take ownership of these securities through private sales (or other means such as via ESOPs or in exchange for seed money) from the issuing company (as in the case with Restricted Securities) or from an affiliate of the issuer (as in the case with Control Securities). Investors wishing to sell these securities are subject to different rules than those selling traditional common or preferred stock. These individuals will only be allowed to liquidate their securities after meeting the specific conditions set forth by SEC Rule 144. Rule 144 allows public re-sale of restricted securities if a number of different conditions are met.
Stock derivatives
A stock
derivative is any financial instrument for which the
underlying asset is the price of an equity.
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 is
long, i.e., takes on the obligation to buy on the contract maturity date, and the seller is
short, i.e., takes on the obligation to sell.
Stock index futures are generally delivered 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. Apart from
call options granted to employees, most stock options are transferable.
History
During the
Roman Republic
The Roman Republic ( ) was the era of Ancient Rome, classical Roman civilisation beginning with Overthrow of the Roman monarchy, the overthrow of the Roman Kingdom (traditionally dated to 509 BC) and ending in 27 BC with the establis ...
, the state contracted (leased) out many of its services to private companies. These government contractors were called ''publicani'', or ''societas publicanorum'' as individual companies. These companies were similar to modern corporations, or
joint-stock companies more specifically, in a couple of aspects. They issued shares called ''partes'' (for large cooperatives) and ''particulae'' which were small shares that acted like today's over-the-counter shares. Polybius mentions that "almost every citizen" participated in the government leases. There is also evidence that the price of stocks fluctuated. The Roman orator Cicero speaks of ''partes illo tempore carissimae'', which means "shares that had a very high price at that time". This implies a fluctuation of price and stock market behavior in Rome.
Around 1250 in
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
at
Toulouse
Toulouse (, ; ; ) is a city in southern France, the Prefectures in France, prefecture of the Haute-Garonne department and of the Occitania (administrative region), Occitania region. The city is on the banks of the Garonne, River Garonne, from ...
, 100 shares of the ''Société des Moulins du Bazacle'', or
Bazacle Milling Company were traded at a value that depended on the profitability of the mills the society owned.
In 1288, the Bishop of Västerås acquired a 12.5% interest in Great Copper Mountain (Stora Kopparberget in Swedish) which contained the
Falun Mine. The
Swedish mining and forestry products company
Stora has documented a stock transfer, in 1288 in exchange for an estate.

The earliest recognized joint-stock company in modern times was the English (later British)
East India Company. It was granted an English
Royal Charter by
Elizabeth I
Elizabeth I (7 September 153324 March 1603) was List of English monarchs, Queen of England and List of Irish monarchs, Ireland from 17 November 1558 until her death in 1603. She was the last and longest reigning monarch of the House of Tudo ...
on 31 December 1600, with the intention of favouring trade privileges in
India
India, officially the Republic of India, is a country in South Asia. It is the List of countries and dependencies by area, seventh-largest country by area; the List of countries by population (United Nations), most populous country since ...
. The Royal Charter effectively gave the newly created ''Honourable East India Company'' (HEIC) a 15-year
monopoly on all trade in the
East Indies.
Soon afterwards, in 1602, the
Dutch East India Company issued the first shares that were made tradeable on the
Amsterdam Stock Exchange. Between 1602 and 1796 it traded 2.5 million tons of cargo with Asia on 4,785 ships and sent a million Europeans to work in Asia.
Shareholder
A shareholder (or ''stockholder'') is an
individual or
company
A company, abbreviated as co., is a Legal personality, legal entity representing an association of legal people, whether Natural person, natural, Juridical person, juridical or a mixture of both, with a specific objective. Company members ...
(including a
corporation
A corporation or body corporate is an individual or a group of people, such as an association or company, that has been authorized by the State (polity), state to act as a single entity (a legal entity recognized by private and public law as ...
) that legally owns one or more
shares of stock in a
joint stock company. Both private and public traded companies have shareholders.
Shareholders are granted special privileges depending on the class of stock, including the right to vote on matters such as elections to the
board of directors, the right to share in distributions of the company's income, the right to purchase new shares issued by the company, and the right to a company's assets during a
liquidation of the company. However, shareholder's rights to a company's assets are subordinate to the rights of the company's creditors.
Shareholders are one type of
stakeholders, who may include anyone who has a direct or indirect equity interest in the
business entity or someone with a non-equity interest in a
non-profit organization
A nonprofit organization (NPO), also known as a nonbusiness entity, nonprofit institution, not-for-profit organization, or simply a nonprofit, is a non-governmental (private) legal entity organized and operated for a collective, public, or so ...
. Thus it might be common to call
volunteer contributors to an
association stakeholders, even though they are not shareholders.
Although directors and officers of a company are bound by
fiduciary duties to act in the best interest of the shareholders, the shareholders themselves normally do not have such duties towards each other.
However, in a few unusual cases, some courts have been willing to imply such a duty between shareholders. For example, in
California
California () is a U.S. state, state in the Western United States that lies on the West Coast of the United States, Pacific Coast. It borders Oregon to the north, Nevada and Arizona to the east, and shares Mexico–United States border, an ...
,
United States
The United States of America (USA), also known as the United States (U.S.) or America, is a country primarily located in North America. It is a federal republic of 50 U.S. state, states and a federal capital district, Washington, D.C. The 48 ...
, majority shareholders of
closely held corporations have a duty not to destroy the value of the shares held by minority shareholders.
The largest shareholders (in terms of percentages of companies owned) are often mutual funds, and, especially, passively managed
exchange-traded fund
An exchange-traded fund (ETF) is a type of investment fund that is also an exchange-traded product, i.e., it is traded on stock exchanges. ETFs own financial assets such as stocks, bonds, currencies, debts, futures contracts, and/or comm ...
s.
Application
The owners of a private company may want additional capital to invest in new projects within the company. They may also simply wish to reduce their holding, freeing up capital for their own private use. They can achieve these goals by selling shares in the company to the general public, through a sale on a
stock exchange
A stock exchange, securities exchange, or bourse is an exchange where stockbrokers and traders can buy and sell securities, such as shares of stock, bonds and other financial instruments. Stock exchanges may also provide facilities for ...
. This process is called an
initial public offering
An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors and usually also to retail (individual) investors. An IPO is typically underwritten by one or more investm ...
, or IPO.
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. The owner may also inherit
debt
Debt is an obligation that requires one party, the debtor, to pay money Loan, borrowed or otherwise withheld from another party, the creditor. Debt may be owed by a sovereign state or country, local government, company, or an individual. Co ...
and even
litigation.
In the common case of a publicly traded corporation, where there may be thousands of shareholders, it is impractical to have all of them making the daily decisions required to run a company. Thus, the shareholders will use their shares as votes in the election of members of the
board of directors of the company.
In a typical case, each share constitutes one vote. Corporations may, however, issue different classes of shares, which may have different voting rights. 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.
Shareholder rights
Although ownership of 50% of shares does result in 50% ownership of a company, it does not give the shareholder the right to use a company's building, equipment, materials, or other property. This is because the company is considered a legal person, thus it owns all its assets itself. This is important in areas such as insurance, which must be in the name of the company and not the main shareholder.
In most countries,
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:
:...it can safely be stated that there does not exist any publicly traded company where management works exclusively in the best interests of OPMI
utside Passive Minority Investorstockholders. Instead, there are both "communities of interest" and "conflicts of interest" between stockholders (principal) and management (agent). This conflict is referred to as the
principal–agent problem. It would be naive to think that any management would forego management compensation, and
management entrenchment, just because some of these management privileges might be perceived as giving rise to a conflict of interest with OPMIs.
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 select 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 or 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 (often the shareholders end up with nothing).
Means of financing
Financing a company through the sale of stock in a company is known as
equity financing. Alternatively,
debt
Debt is an obligation that requires one party, the debtor, to pay money Loan, borrowed or otherwise withheld from another party, the creditor. Debt may be owed by a sovereign state or country, local government, company, or an individual. Co ...
financing (for example issuing
bonds) can be done to avoid giving up shares of ownership of the company. Unofficial financing known as
trade financing usually provides the major part of a company's
working capital (day-to-day operational needs).
Trading

In general, the shares of a company may be transferred from shareholders to other parties by sale or other mechanisms, unless prohibited. Most jurisdictions have established laws and regulations governing such transfers, particularly if the issuer is a publicly traded entity.
The desire of stockholders to trade their shares has led to the establishment of
stock exchange
A stock exchange, securities exchange, or bourse is an exchange where stockbrokers and traders can buy and sell securities, such as shares of stock, bonds and other financial instruments. Stock exchanges may also provide facilities for ...
s, organizations which provide marketplaces for trading
shares and other derivatives and financial products. Today,
stock traders are usually represented by a
stockbroker who buys and sells shares of a wide range of companies on such exchanges. A company may list its shares on an exchange by meeting and maintaining the
listing requirements of a particular stock exchange.
Many large non-U.S companies choose to list on a U.S. exchange as well as an exchange in their home country in order to broaden their investor base. These companies must maintain a block of shares at a bank in the US, typically a certain percentage of their capital. On this basis, the holding bank establishes American depositary shares and issues an
American depositary receipt (ADR) for each share a trader acquires. Likewise, many large U.S. companies list their shares at foreign exchanges to raise capital abroad.
Small companies that do not qualify and cannot meet the listing requirements of the major exchanges may be traded
over-the-counter (OTC) by an off-exchange mechanism in which trading occurs directly between parties. The major OTC markets in the United States are the electronic quotation systems
OTC Bulletin Board
The OTC (Over-The-Counter) Bulletin Board or OTCBB was a United States Financial quote, quotation medium operated by the Financial Industry Regulatory Authority (FINRA) for its subscribing members. FINRA closed the OTCBB on November 8, 2021.
The ...
(OTCBB) and
OTC Markets Group (formerly known as Pink OTC Markets Inc.) where individual retail investors are also represented by a
brokerage firm and the quotation service's requirements for a company to be listed are minimal. Shares of companies in bankruptcy proceedings are usually listed by these quotation services after the stock is delisted from an exchange.
Buying
There are various methods of buying and
financing stocks, the most common being through a
stockbroker. Brokerage firms, whether they are a full-service or
discount broker, arrange the transfer of stock from a seller to a buyer. Most trades are actually done through brokers listed with a stock exchange.
There are many different brokerage firms 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
A bank is a financial institution that accepts Deposit account, deposits from the public and creates a demand deposit while simultaneously making loans. Lending activities can be directly performed by the bank or indirectly through capital m ...
or
credit union
A credit union is a member-owned nonprofit organization, nonprofit cooperative financial institution. They may offer financial services equivalent to those of commercial banks, such as share accounts (savings accounts), share draft accounts (che ...
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 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
An initial public offering (IPO) or stock launch is a public offering in which shares of a company are sold to institutional investors and usually also to retail (individual) investors. An IPO is typically underwritten by one or more investm ...
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 buyer's ownership, or by buying stock on
margin. Buying stock on
margin means buying stock with money borrowed against the value of stocks in the same account. These stocks, or
collateral, guarantee that the buyer can repay the
loan
In finance, a loan is the tender of money by one party to another with an agreement to pay it back. The recipient, or borrower, incurs a debt and is usually required to pay interest for the use of the money.
The document evidencing the deb ...
; otherwise, the stockbroker has the right to sell the stock (collateral) to repay the borrowed money. He can sell if the
share price drops below the
margin requirement, at least 50% 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 a car or house as collateral. Moreover, borrowing is not free; the broker usually charges 8–10% interest.
Selling
Selling stock is procedurally similar to buying stock. Generally, the investor wants to buy low and sell high, if not in that order (
short selling
In finance, being short in an asset means investing in such a way that the investor will profit if the market value of the asset falls. This is the opposite of the more common Long (finance), long Position (finance), position, where the inves ...
); although a number of reasons may induce an investor to sell at a loss, e.g., to avoid further loss.
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, full service or discount, 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.
Short selling
Short selling
In finance, being short in an asset means investing in such a way that the investor will profit if the market value of the asset falls. This is the opposite of the more common Long (finance), long Position (finance), position, where the inves ...
consists of an investor immediately selling borrowed shares and then buying them back when their price has gone down (called "covering").
Essentially, such an investor bets
that the price of the shares will drop so that they can be bought back at the lower price and thus returned to the lender at a profit.
The risks of short selling are usually higher than those of buying stock, as the loss can theoretically be unlimited since the stock's value can go up indefinitely in theory.
Stock price fluctuations
The price of a stock fluctuates fundamentally due to the theory of
supply and demand. Like all commodities in the market, the price of a stock is sensitive to demand. However, there are many factors that influence the demand for a particular stock. The fields of
fundamental analysis and
technical analysis attempt to understand market conditions that lead to price changes, or even predict future price levels. A recent study shows that customer satisfaction, as measured by the
American Customer Satisfaction Index (ACSI), is significantly correlated to the market value of a stock. Stock price may be influenced by analysts' business forecast for the company and outlooks for the company's general market segment. Stocks can also fluctuate greatly due to
pump and dump scams .
Share price determination
At any given moment, an equity's price is strictly a result of supply and demand. The supply, commonly referred to as the ''
float'', is the number of shares offered for sale at any one moment. The demand is the number of shares investors wish to buy at exactly that same time. The price of the stock moves in order to achieve and maintain
equilibrium. The product of this instantaneous price and the float at any one time is the
market capitalization of the entity offering the equity at that point in time.
When prospective buyers outnumber sellers, the price rises. Eventually, sellers attracted to the high selling price enter the market and/or buyers leave, achieving equilibrium between buyers and sellers. When sellers outnumber buyers, the price falls. Eventually buyers enter and/or sellers leave, again achieving equilibrium.
Thus, the value of a share of a company at any given moment is determined by all investors voting with their money. If more investors want a stock and are willing to pay more, the price will go up. If more investors are selling a stock and there are not enough buyers, the price will go down.
That does not explain how people decide the maximum price at which they are willing to buy or the minimum at which they are willing to sell. In professional investment circles the
efficient market hypothesis (EMH) continues to be popular, although this theory is controversial in academic and professional circles. Briefly, EMH says that investing is overall (weighted by the
standard deviation
In statistics, the standard deviation is a measure of the amount of variation of the values of a variable about its Expected value, mean. A low standard Deviation (statistics), deviation indicates that the values tend to be close to the mean ( ...
) rational; that the price of a stock at any given moment represents a rational evaluation of the known information that might bear on the future value of the company; and that share prices of equities are priced ''efficiently'', which is to say that they represent accurately the
expected value of the stock, as best it can be known at a given moment. In other words, prices are the result of discounting expected future cash flows.
The EMH model, if true, has at least two interesting consequences. First, because financial
risk is presumed to require at least a small premium on expected value, the
return on equity can be expected to be slightly greater than that available from non-equity investments: if not, the same rational calculations would lead equity investors to shift to these safer non-equity investments that could be expected to give the same or better return at lower risk. Second, because the price of a share at every given moment is an "efficient" reflection of expected value, then—relative to the curve of expected return—prices will tend to follow a
random walk, determined by the emergence of information (randomly) over time. Professional equity investors therefore immerse themselves in the flow of fundamental information, seeking to gain an advantage over their competitors (mainly other professional investors) by more intelligently interpreting the emerging flow of information (news).
The EMH model does not seem to give a complete description of the process of equity price determination. For example, stock markets are more volatile than EMH would imply. In recent years it has come to be accepted that the share markets are not perfectly efficient, perhaps especially in emerging markets or other markets that are not dominated by well-informed professional investors.
Another theory of share price determination comes from the field of
behavioral finance. According to behavioral finance, humans often make irrational decisions—particularly, related to the buying and selling of securities—based upon fears and misperceptions of outcomes. The irrational trading of securities can often create securities prices which vary from rational, fundamental price valuations. For instance, during the technology bubble of the late 1990s (which was followed by the
dot-com bust of 2000–2002), technology companies were often bid beyond any rational fundamental value because of what is commonly known as the "
greater fool theory". The "greater fool theory" holds that, because the predominant method of realizing returns in equity is from the sale to another investor, one should select securities that they believe that someone else will value at a higher level at some point in the future, without regard to the basis for that other party's willingness to pay a higher price.Thus, even a rational investor may bank on others' irrationality.
Arbitrage trading
When companies raise capital by offering stock on more than one exchange, the potential exists for discrepancies in the valuation of shares on different exchanges. A keen investor with access to information about such discrepancies may invest in expectation of their eventual convergence, known as
arbitrage trading.
Electronic trading has resulted in extensive price transparency (
efficient-market hypothesis) and these discrepancies, if they exist, are short-lived and quickly equilibrated.
See also
*
Arrangements between railroads
*
Boiler room
*
Bucket shop
*
Buying in (securities)
*
Concentrated stock
*
Employee stock ownership
*
Equity investment
*
GICS
*
Golden share
*
House stock
*
Insider trading
*
Money managers
*
Naked short selling
*
Penny stock
*
Scripophily
*
Social ownership
*
Stock and flow
*
Stock dilution
*
Stock valuation
*
Stock token
*
Stub (stock)
*
Tracking stock
*
Treasury stock
* Traditional and alternative
investments
*
Voting interest
Notes
References
Further reading
*
*
* ''
Rich Dad Poor Dad: What the Rich Teach Their Kids about Money That the Poor and Middle Class Do Not!'', by
Robert Kiyosaki and
Sharon Lechter.
Warner Business Books, 2000.
*
*
*
*
*
*
External links
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Stock market
Equity securities
Corporate finance
Financial capital
Private equity