A stock market or equity market is a public market A market system is any systematic process enabling many market players to bid and ask: helping bidders and sellers interact and make deals. It is not just the price mechanism but the entire system of regulation, qualification, credentials, reputations and clearing that surrounds that mechanism and makes it operate in a social context (a loose network of economic transactions not a physical facility or discrete entity) for the trading Trade is the voluntary exchange of goods, services, or both. Trade is also called commerce or transaction. A mechanism that allows trade is called a market. The original form of trade was barter, the direct exchange of goods and services. Later one side of the barter were the metals, precious metals , bill, paper money. Modern traders instead of company A corporation is an institution that is granted a charter recognizing it as a separate legal entity having its own privileges, and liabilities distinct from those of its members. There are many different forms of corporations, most of which are used to conduct business stock The stock or capital stock of a business entity represents the original capital paid into or invested in the business by its founders. It serves as a security for the creditors of a business since it cannot be withdrawn to the detriment of the creditors. Stock is distinct from the property and the assets of a business which may fluctuate in and derivatives A derivative, in non-financial-expert terms, is an agreement or contract that is not based on a real, or true, exchange, i.e.: There is nothing tangible like money, or a product, that is being exchanged. For example, a person goes to the grocery store, exchanges a currency for a commodity (say, an apple). The exchange is complete, both parties at an agreed price; these are securities A security is a fungible, negotiable instrument representing financial value. Securities are broadly categorized into debt securities and 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 listed on a stock exchange A stock exchange is an entity which provides "trading" facilities for stock brokers and traders, to trade stocks and other securities. Stock exchanges also provide facilities for the issue and redemption of securities as well as other financial instruments and capital events including the payment of income and dividends. The securities as well as those only traded privately.

The size of the world stock market was estimated at about $36.6 trillion US at the beginning of October 2008.[1] The total world derivatives market has been estimated at about $791 trillion face or nominal value,[2] 11 times the size of the entire world economy.[3] The value of the derivatives market, because it is stated in terms of notional values The notional amount on a financial instrument is the nominal or face amount that is used to calculate payments made on that instrument. This amount generally does not change hands and is thus referred to as notional, cannot be directly compared to a stock or a fixed income security, which traditionally refers to an actual value In the property and casualty insurance industry, Actual Cash Value is a method of valuing insured property. Moreover, the vast majority of derivatives 'cancel' each other out (i.e., a derivative 'bet' on an event occurring is offset by a comparable derivative 'bet' on the event not occurring.). Many such relatively illiquid securities are valued as marked to model Mark-to-Model refers to the practice of pricing a position or portfolio at prices determined by financial models, in contrast to allowing the market to determine the price. Often the use of models is necessary where a market for the financial product is not available, such as with complex financial instruments. One shortcoming of Mark-to-Model is, rather than an actual market price.

The stocks are listed and traded on stock exchanges which are entities of a corporation or mutual organization specialized in the business of bringing buyers and sellers of the organizations to a listing of stocks and securities together. The stock market in the United States is NYSE The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, USA. It is the world's largest stock exchange by market capitalization of its listed companies at US$12.25 trillion as of May 2010. Average daily trading value was approximately US$153 billion in 2008 while in Canada, it is the Toronto Stock Exchange The Toronto Stock Exchange , a subsidiary of the TMX Group Inc., is the largest stock exchange in Canada, the third largest in North America and the eighth largest in the world by market capitalization. Based in Canada's largest city, Toronto, it is owned and operated by TMX Group for the trading of senior equities. A broad range of businesses. Major European examples of stock exchanges include the London Stock Exchange The London Stock Exchange is a stock exchange located in London, United Kingdom. Founded in 1801, it is one of the largest stock exchanges in the world, with many overseas listings as well as British companies. The exchange is part of the London Stock Exchange Group and so sometimes referred to by the ticker symbol for the group, LSE, Paris Bourse Coordinates: 48°52′09″N 2°20′29″E / 48.86917°N 2.34139°E The Paris Bourse is the historical Paris stock exchange, known as Euronext Paris from 2000 onwards, and the Deutsche Börse Deutsche Börse AG is a marketplace organizer for the trading of shares and other securities. It also is a transaction services provider. It gives companies and investors access to global capital markets. It is a joint stock company and was founded in 1993. The headquarters are in Frankfurt, Germany. Asian examples include the Tokyo Stock Exchange The Tokyo Stock Exchange , called Tōshō (東証?) or TSE for short, is located in Tokyo, Japan and is the second largest stock exchange in the world by aggregate market capitalization of its listed companies, second only to the New York Stock Exchange. The Tokyo Stock Exchange had 2,414 listed companies with a combined market capitalization of, the Hong Kong Stock Exchange The Hong Kong Stock Exchange is the stock exchange of Hong Kong. The exchange has predominantly been the main exchange for Hong Kong where shares of listed companies are traded. It is Asia's second largest stock exchange in terms of market capitalisation, behind the Tokyo Stock Exchange. As of 31 December 2007, the Hong Kong Stock Exchange had 1,24,the Bombay Stock Exchange The Bombay Stock Exchange Limited (formerly, The Stock Exchange, Mumbai; popularly called Bombay Stock Exchange, or BSE) is the oldest stock exchange in Asia and has the third largest number of listed companies in the world, with 4700 listed as of August 2007. It is located at Dalal Street, Mumbai, India. On 31 December 2007, the equity market and the Karachi Stock Exchange The Karachi Stock Exchange or KSE is a stock exchange located in Karachi, Sindh, Pakistan. Founded in 1947, it is Pakistan's largest and oldest stock exchange, with many Pakistani as well as overseas listings. Its current premises are situated on Stock Exchange Road, in the heart of Karachi's Business District. In Latin America, there are such exchanges as the BM&F Bovespa and the BMV The Mexican Stock Exchange (in Spanish: Bolsa Mexicana de Valores, BMV) is Mexico's only stock exchange. It is headquartered on the prestigious Paseo de la Reforma in central Mexico City. It is the second largest stock exchange in the Latin America after Brazil's BM&F Bovespa. The total value of the Mexican Stock Exchange is estimated to be.

Contents

Trading

The London Stock Exchange The London Stock Exchange is a stock exchange located in London, United Kingdom. Founded in 1801, it is one of the largest stock exchanges in the world, with many overseas listings as well as British companies. The exchange is part of the London Stock Exchange Group and so sometimes referred to by the ticker symbol for the group, LSE.

Participants in the stock market range from small individual stock investors A stock trader or a stock investor is an individual or firm who buys and sells stocks or bonds in the financial markets to large hedge fund A hedge fund is an investment fund open to a limited range of investors that undertakes a wider range of investment and trading activities than traditional long-only investment funds, and that, in general, pays a performance fee to its investment manager. Every hedge fund has its own investment strategy that determines the type of investments and traders In finance, a trader is someone who buys and sells financial instruments such as stocks, bonds, commodities and derivatives. A broker who simply fills buy or sell orders is not a trader, as they are merely executing instructions given to them, who can be based anywhere. Their orders usually end up with a professional at a stock exchange, who executes the order.

Some exchanges are physical locations where transactions are carried out on a trading floor, by a method known as open outcry Open outcry is the name of a method of communication between professionals on a stock exchange or futures exchange which involves shouting and the use of hand signals to transfer information primarily about buy and sell orders. The part of the trading floor where this takes place is called a pit. This type of auction is used in stock exchanges and commodity exchanges A commodities exchange is an exchange where various commodities and derivatives products are traded. Most commodity markets across the world trade in agricultural products and other raw materials and contracts based on them. These contracts can include spot prices, forwards, futures and options on futures. Other sophisticated products may include where traders may enter "verbal" bids and offers simultaneously. The other type of stock exchange is a virtual kind, composed of a network of computers where trades are made electronically via traders.

Actual trades are based on an auction market An auction is a process of buying and selling goods or services by offering them up for bid, taking bids, and then selling the item to the highest bidder. In economic theory, an auction may refer to any mechanism or set of trading rules for exchange model where a potential buyer bids a specific price for a stock and a potential seller asks a specific price for the stock. (Buying or selling at market means you will accept any ask price or bid price for the stock, respectively.) When the bid and ask prices match, a sale takes place, on a first-come-first-served basis if there are multiple bidders or askers at a given price.

The purpose of a stock exchange is to facilitate the exchange of securities between buyers and sellers, thus providing a marketplace A marketplace is the space, actual, virtual or metaphorical, in which a market operates. The term is also used in a trademark law context to denote the actual consumer environment, ie. the 'real world' in which products and services are provided and consumed (virtual or real). The exchanges provide real-time trading information on the listed securities, facilitating price discovery.

New York Stock Exchange The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, USA. It is the world's largest stock exchange by market capitalization of its listed companies at US$12.25 trillion as of May 2010. Average daily trading value was approximately US$153 billion in 2008.

The New York Stock Exchange The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, USA. It is the world's largest stock exchange by market capitalization of its listed companies at US$12.25 trillion as of May 2010. Average daily trading value was approximately US$153 billion in 2008 is a physical exchange, also referred to as a listed exchange — only stocks listed with the exchange may be traded. Orders enter by way of exchange members and flow down to a floor broker A floor broker is an independent member of an exchange who can act as a broker for other members who become overloaded with orders, as an agent on the floor of the exchange. The floor broker receives an order via teletype machine from his firm's trading department and then proceeds to the appropriate trading post on the exchange floor. There he, who goes to the floor trading post specialist The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, USA. It is the world's largest stock exchange by market capitalization of its listed companies at US$12.25 trillion as of May 2010. Average daily trading value was approximately US$153 billion in 2008 for that stock to trade the order. The specialist's job is to match buy and sell orders using open outcry. If a spread The bid/offer spread for securities (such as stock, futures contracts, options, or currency pairs) is the difference between the price quoted by a market maker for an immediate sale (bid) and an immediate purchase (ask). The size of the bid-offer spread in a given commodity is a measure of the liquidity of the market and the size of the exists, no trade immediately takes place--in this case the specialist should use his/her own resources (money or stock) to close the difference after his/her judged time. Once a trade has been made the details are reported on the "tape The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, USA. It is the world's largest stock exchange by market capitalization of its listed companies at US$12.25 trillion as of May 2010. Average daily trading value was approximately US$153 billion in 2008" and sent back to the brokerage firm, which then notifies the investor who placed the order. Although there is a significant amount of human contact in this process, computers play an important role, especially for so-called "program trading Program trading is a generic term used to describe a type of trading in securities, usually consisting of baskets of fifteen stocks or more".

The NASDAQ The NASDAQ Stock Market, also known as the NASDAQ, is an American stock exchange. "NASDAQ" originally stood for "National Association of Securities Dealers Automated Quotations," but the exchange's official stance is that the acronym is obsolete. It is the largest electronic screen-based equity securities trading market in the is a virtual listed exchange, where all of the trading is done over a computer network. The process is similar to the New York Stock Exchange. However, buyers and sellers are electronically matched. One or more NASDAQ market makers Most foreign exchange trading firms are market makers and so are many banks, although not in all currency markets. In foreign exchange trading, where most deals are conducted over-the-counter and are, therefore, completely virtual, the market maker sells to and buys from its clients and is compensated by means of price differentials and for the will always provide a bid and ask price at which they will always purchase or sell 'their' stock.[4]

The Paris Bourse Coordinates: 48°52′09″N 2°20′29″E / 48.86917°N 2.34139°E The Paris Bourse is the historical Paris stock exchange, known as Euronext Paris from 2000 onwards, now part of Euronext Source:"euronext.com". http://www.euronext.com/trader/indicescomposition/composition-4411-EN-FR0003502079.html?selectedMep=1&idInstrument=22218, is an order-driven, electronic stock exchange. It was automated in the late 1980s. Prior to the 1980s, it consisted of an open outcry exchange. Stockbrokers A stock broker or stockbroker is a regulated professional broker who buys and sells shares and other securities through market makers or Agency Only Firms on behalf of investors met on the trading floor or the Palais Brongniart. In 1986, the CATS trading system was introduced, and the order matching process was fully automated.

From time to time, active trading (especially in large blocks of securities) have moved away from the 'active' exchanges. Securities firms, led by UBS AG, Goldman Sachs Group Inc. and Credit Suisse Group, already steer 12 percent of U.S. security trades away from the exchanges to their internal systems. That share probably will increase to 18 percent by 2010 as more investment banks bypass the NYSE and NASDAQ and pair buyers and sellers of securities themselves, according to data compiled by Boston-based Aite Group LLC, a brokerage-industry consultant.[5]

Now that computers have eliminated the need for trading floors like the Big Board The New York Stock Exchange is a stock exchange located at 11 Wall Street in lower Manhattan, New York City, New York, USA. It is the largest stock exchange in the world by United States dollar value of its listed companies' securities. As of October 2008, the combined capitalization of all domestic NYSE listed companies was US$10.1 trillion's, the balance of power in equity markets is shifting. By bringing more orders in-house, where clients can move big blocks of stock anonymously, brokers A broker is a party that mediates between a buyer and a seller. A broker who also acts as a seller or as a buyer becomes a principal party to the deal. Distinguish agent: one who acts on behalf of a principal. A "brokerage" or a "brokerage firm" is a business that acts as a broker. A brokerage firm is a business that pay the exchanges less in fees and capture a bigger share of the $11 billion a year that institutional investors pay in trading commissions as well as the surplus of the century had taken place.[citation needed].

Market participants

A few decades ago, worldwide, buyers and sellers were individual investors, such as wealthy businessmen, with long family histories (and emotional ties) to particular corporations. Over time, markets have become more "institutionalized"; buyers and sellers are largely institutions (e.g., pension funds A pension fund is a pool of assets forming an independent legal entity that are bought with the contributions to a pension plan for the exclusive purpose of financing pension plan benefits.[citation needed], insurance companies Insurance, in law and economics, is a form of risk management primarily used to hedge against the risk of a contingent, uncertain loss. Insurance is defined as the equitable transfer of the risk of a loss, from one entity to another, in exchange for payment. An insurer is a company selling the insurance; an insured or policyholder is the person or, mutual funds A mutual fund is a professionally managed type of collective investment scheme that pools money from many investors and invests typically in investment securities . The mutual fund will have a fund manager that trades (buys and sells) the fund's investments in accordance with the fund's investment objective. In the U.S., a fund registered with the, index funds An index fund or index tracker is a collective investment scheme that aims to replicate the movements of an index of a specific financial market, or a set of rules of ownership that are held constant, regardless of market conditions, exchange-traded funds An exchange-traded fund (also known as Exchange-Traded Product (ETP)) is an investment fund traded on stock exchanges, much like stocks. An ETF holds assets such as stocks or bonds and trades at approximately the same price as the net asset value of its underlying assets over the course of the trading day. Most ETFs track an index, such as the S&, hedge funds A hedge fund is an investment fund open to a limited range of investors that undertakes a wider range of investment and trading activities than traditional long-only investment funds, and that, in general, pays a performance fee to its investment manager. Every hedge fund has its own investment strategy that determines the type of investments and, investor groups, banks Banking is generally a highly regulated industry, and government restrictions on financial activities by banks have varied over time and location. The current set of global bank capital standards are called Basel II. In some countries such as Germany, banks have historically owned major stakes in industrial corporations while in other countries and various other financial institutions In financial economics, a financial institution is an institution that provides financial services for its clients or members. Probably the most important financial service provided by financial institutions is acting as financial intermediaries. Most financial institutions are highly regulated by government). The rise of the institutional investor has brought with it some improvements in market operations. Thus, the government was responsible for "fixed" (and exorbitant) fees being markedly reduced for the 'small' investor, but only after the large institutions had managed to break the brokers' solid front on fees. (They then went to 'negotiated' fees, but only for large institutions.[citation needed])

However, corporate governance (at least in the West) has been very much adversely affected by the rise of (largely 'absentee') institutional 'owners'.[citation needed]

History

Established in 1875, the Bombay Stock Exchange is Asia's first stock exchange.

In 12th century France the courratiers de change were concerned with managing and regulating the debts of agricultural communities on behalf of the banks. Because these men also traded with debts, they could be called the first brokers. A common misbelief is that in late 13th century Bruges commodity traders gathered inside the house of a man called Van der Beurze, and in 1309 they became the "Brugse Beurse", institutionalizing what had been, until then, an informal meeting, but actually, the family Van der Beurze had a building in Antwerp where those gatherings occurred;[6] the Van der Beurze had Antwerp, as most of the merchants of that period, as their primary place for trading. The idea quickly spread around Flanders and neighboring counties and "Beurzen" soon opened in Ghent and Amsterdam.

In the middle of the 13th century, Venetian bankers began to trade in government securities. In 1351 the Venetian government outlawed spreading rumors intended to lower the price of government funds. Bankers in Pisa, Verona, Genoa and Florence also began trading in government securities during the 14th century. This was only possible because these were independent city states not ruled by a duke but a council of influential citizens. The Dutch later started joint stock companies, which let shareholders invest in business ventures and get a share of their profits - or losses. In 1602, the Dutch East India Company issued the first share on the Amsterdam Stock Exchange. It was the first company to issue stocks and bonds.

The Amsterdam Stock Exchange (or Amsterdam Beurs) is also said to have been the first stock exchange to introduce continuous trade in the early 17th century. The Dutch "pioneered short selling, option trading, debt-equity swaps, merchant banking, unit trusts and other speculative instruments, much as we know them".[7] There are now stock markets in virtually every developed and most developing economies, with the world's biggest markets being in the United States, United Kingdom, Japan, India, China, Canada, Germany, France, South Korea and the Netherlands.[8]

Importance of stock market

Function and purpose

The main trading room of the Tokyo Stock Exchange, where trading is currently completed through computers.

The stock market is one of the most important sources for companies to raise money. This allows businesses to be publicly traded, or raise additional capital for expansion by selling shares of ownership of the company in a public market. The liquidity that an exchange provides affords investors the ability to quickly and easily sell securities. This is an attractive feature of investing in stocks, compared to other less liquid investments such as real estate.

History has shown that the price of shares and other assets is an important part of the dynamics of economic activity, and can influence or be an indicator of social mood. An economy where the stock market is on the rise is considered to be an up-and-coming economy. In fact, the stock market is often considered the primary indicator of a country's economic strength and development. Rising share prices, for instance, tend to be associated with increased business investment and vice versa. Share prices also affect the wealth of households and their consumption. Therefore, central banks tend to keep an eye on the control and behavior of the stock market and, in general, on the smooth operation of financial system functions. Financial stability is the raison d'être of central banks.

Exchanges also act as the clearinghouse for each transaction, meaning that they collect and deliver the shares, and guarantee payment to the seller of a security. This eliminates the risk to an individual buyer or seller that the counterparty could default on the transaction.

The smooth functioning of all these activities facilitates economic growth in that lower costs and enterprise risks promote the production of goods and services as well as employment. In this way the financial system contributes to increased prosperity. An important aspect of modern financial markets, however, including the stock markets, is absolute discretion. For example, American stock markets see more unrestrained acceptance of any firm than in smaller markets. For example, Chinese firms that possess little or no perceived value to American society profit American bankers on Wall Street, as they reap large commissions from the placement, as well as the Chinese company which yields funds to invest in China. However, these companies accrue no intrinsic value to the long-term stability of the American economy, but rather only short-term profits to American business men and the Chinese; although, when the foreign company has a presence in the new market, this can benefit the market's citizens. Conversely, there are very few large foreign corporations listed on the Toronto Stock Exchange TSX, Canada's largest stock exchange. This discretion has insulated Canada to some degree to worldwide financial conditions. In order for the stock markets to truly facilitate economic growth via lower costs and better employment, great attention must be given to the foreign participants being allowed in.

Relation of the stock market to the modern financial system

The financial systems in most western countries has undergone a remarkable transformation. One feature of this development is disintermediation. A portion of the funds involved in saving and financing, flows directly to the financial markets instead of being routed via the traditional bank lending and deposit operations. The general public's heightened interest in investing in the stock market, either directly or through mutual funds, has been an important component of this process.

Statistics show that in recent decades shares have made up an increasingly large proportion of households' financial assets in many countries. In the 1970s, in Sweden, deposit accounts and other very liquid assets with little risk made up almost 60 percent of households' financial wealth, compared to less than 20 percent in the 2000s. The major part of this adjustment in financial portfolios has gone directly to shares but a good deal now takes the form of various kinds of institutional investment for groups of individuals, e.g., pension funds, mutual funds, hedge funds, insurance investment of premiums, etc.

The trend towards forms of saving with a higher risk has been accentuated by new rules for most funds and insurance, permitting a higher proportion of shares to bonds. Similar tendencies are to be found in other industrialized countries. In all developed economic systems, such as the European Union, the United States, Japan and other developed nations, the trend has been the same: saving has moved away from traditional (government insured) bank deposits to more risky securities of one sort or another.

The stock market, individual investors, and financial risk

Riskier long-term saving requires that an individual possess the ability to manage the associated increased risks. Stock prices fluctuate widely, in marked contrast to the stability of (government insured) bank deposits or bonds. This is something that could affect not only the individual investor or household, but also the economy on a large scale. The following deals with some of the risks of the financial sector in general and the stock market in particular. This is certainly more important now that so many newcomers have entered the stock market, or have acquired other 'risky' investments (such as 'investment' property, i.e., real estate and collectables).

With each passing year, the noise level in the stock market rises. Television commentators, financial writers, analysts, and market strategists are all overtaking each other to get investors' attention. At the same time, individual investors, immersed in chat rooms and message boards, are exchanging questionable and often misleading tips. Yet, despite all this available information, investors find it increasingly difficult to profit. Stock prices skyrocket with little reason, then plummet just as quickly, and people who have turned to investing for their children's education and their own retirement become frightened. Sometimes there appears to be no rhyme or reason to the market, only folly.

This is a quote from the preface to a published biography about the long-term value-oriented stock investor Warren Buffett.[9] Buffett began his career with $100, and $100,000 from seven limited partners consisting of Buffett's family and friends. Over the years he has built himself a multi-billion-dollar fortune. The quote illustrates some of what has been happening in the stock market during the end of the 20th century and the beginning of the 21st century.

United States Stock Market Returns

Over a sixty-year period, for year ended 2009, on a Total Return Basis, the S&P 500 Index year-to-year grew at an average annualized rate of 9.2%; on a compounded basis an average annualized rate of 5.6%.[10]

The behavior of the stock market

NASDAQ in Times Square, New York City.

From experience we know that investors may 'temporarily' move financial prices away from their long term aggregate price 'trends'. (Positive or up trends are referred to as bull markets; negative or down trends are referred to as bear markets.) Over-reactions may occur—so that excessive optimism (euphoria) may drive prices unduly high or excessive pessimism may drive prices unduly low. Economists continue to debate whether financial markets are 'generally' efficient.

According to one interpretation of the efficient market hypothesis (EMH), only changes in fundamental factors, such as the outlook for margins, profits or dividends, ought to affect share prices beyond the short term, where random 'noise' in the system may prevail. (But this largely theoretic academic viewpoint—known as 'hard' EMH—also predicts that little or no trading should take place, contrary to fact, since prices are already at or near equilibrium, having priced in all public knowledge.) The 'hard' efficient-market hypothesis is sorely tested by such events as the stock market crash in 1987, when the Dow Jones index plummeted 22.6 percent—the largest-ever one-day fall in the United States. This event demonstrated that share prices can fall dramatically even though, to this day, it is impossible to fix a generally agreed upon definite cause: a thorough search failed to detect any 'reasonable' development that might have accounted for the crash. (But note that such events are predicted to occur strictly by chance , although very rarely.) It seems also to be the case more generally that many price movements (beyond that which are predicted to occur 'randomly') are not occasioned by new information; a study of the fifty largest one-day share price movements in the United States in the post-war period seems to confirm this.[11]

However, a 'soft' EMH has emerged which does not require that prices remain at or near equilibrium, but only that market participants not be able to systematically profit from any momentary market 'inefficiencies'. Moreover, while EMH predicts that all price movement (in the absence of change in fundamental information) is random (i.e., non-trending), many studies have shown a marked tendency for the stock market to trend over time periods of weeks or longer. Various explanations for such large and apparently non-random price movements have been promulgated. For instance, some research has shown that changes in estimated risk, and the use of certain strategies, such as stop-loss limits and Value at Risk limits, theoretically could cause financial markets to overreact. But the best explanation seems to be that the distribution of stock market prices is non-Gaussian (in which case EMH, in any of its current forms, would not be strictly applicable).[12][13]

Other research has shown that psychological factors may result in exaggerated (statistically anomalous) stock price movements (contrary to EMH which assumes such behaviors 'cancel out'). Psychological research has demonstrated that people are predisposed to 'seeing' patterns, and often will perceive a pattern in what is, in fact, just noise. (Something like seeing familiar shapes in clouds or ink blots.) In the present context this means that a succession of good news items about a company may lead investors to overreact positively (unjustifiably driving the price up). A period of good returns also boosts the investor's self-confidence, reducing his (psychological) risk threshold.[14]

Another phenomenon—also from psychology—that works against an objective assessment is group thinking. As social animals, it is not easy to stick to an opinion that differs markedly from that of a majority of the group. An example with which one may be familiar is the reluctance to enter a restaurant that is empty; people generally prefer to have their opinion validated by those of others in the group.

In one paper the authors draw an analogy with gambling.[15] In normal times the market behaves like a game of roulette; the probabilities are known and largely independent of the investment decisions of the different players. In times of market stress, however, the game becomes more like poker (herding behavior takes over). The players now must give heavy weight to the psychology of other investors and how they are likely to react psychologically.

The stock market, as any other business, is quite unforgiving of amateurs. Inexperienced investors rarely get the assistance and support they need. In the period running up to the 1987 crash, less than 1 percent of the analyst's recommendations had been to sell (and even during the 2000 - 2002 bear market, the average did not rise above 5%). In the run up to 2000, the media amplified the general euphoria, with reports of rapidly rising share prices and the notion that large sums of money could be quickly earned in the so-called new economy stock market. (And later amplified the gloom which descended during the 2000 - 2002 bear market, so that by summer of 2002, predictions of a DOW average below 5000 were quite common.)

Irrational behavior

Sometimes the market seems to react irrationally to economic or financial news, even if that news is likely to have no real effect on the fundamental value of securities itself. But this may be more apparent than real, since often such news has been anticipated, and a counterreaction may occur if the news is better (or worse) than expected. Therefore, the stock market may be swayed in either direction by press releases, rumors, euphoria and mass panic; but generally only briefly, as more experienced investors (especially the hedge funds) quickly rally to take advantage of even the slightest, momentary hysteria.

Over the short-term, stocks and other securities can be battered or buoyed by any number of fast market-changing events, making the stock market behavior difficult to predict. Emotions can drive prices up and down, people are generally not as rational as they think, and the reasons for buying and selling are generally obscure. Behaviorists argue that investors often behave 'irrationally' when making investment decisions thereby incorrectly pricing securities, which causes market inefficiencies, which, in turn, are opportunities to make money.[16] However, the whole notion of EMH is that these non-rational reactions to information cancel out, leaving the prices of stocks rationally determined.

The Dow Jones Industrial Average biggest gain in one day was 936.42 points or 11 percent, this occurred on October 13, 2008.[17]

Crashes

The examples and perspective in this section may not represent a worldwide view of the subject. Please improve this article and discuss the issue on the talk page. (March 2009)
Robert Shiller's plot of the S&P Composite Real Price Index, Earnings, Dividends, and Interest Rates, from Irrational Exuberance, 2d ed.[18] In the preface to this edition, Shiller warns, "The stock market has not come down to historical levels: the price-earnings ratio as I define it in this book is still, at this writing [2005], in the mid-20s, far higher than the historical average. . . . People still place too much confidence in the markets and have too strong a belief that paying attention to the gyrations in their investments will someday make them rich, and so they do not make conservative preparations for possible bad outcomes." Price-Earnings ratios as a predictor of twenty-year returns based upon the plot by Robert Shiller (Figure 10.1,[18] source). The horizontal axis shows the real price-earnings ratio of the S&P Composite Stock Price Index as computed in Irrational Exuberance (inflation adjusted price divided by the prior ten-year mean of inflation-adjusted earnings). The vertical axis shows the geometric average real annual return on investing in the S&P Composite Stock Price Index, reinvesting dividends, and selling twenty years later. Data from different twenty year periods is color-coded as shown in the key. See also ten-year returns. Shiller states that this plot "confirms that long-term investors—investors who commit their money to an investment for ten full years—did do well when prices were low relative to earnings at the beginning of the ten years. Long-term investors would be well advised, individually, to lower their exposure to the stock market when it is high, as it has been recently, and get into the market when it is low."[18] Main article: Stock market crash

A stock market crash is often defined as a sharp dip in share prices of equities listed on the stock exchanges. In parallel with various economic factors, a reason for stock market crashes is also due to panic and investing public's loss of confidence. Often, stock market crashes end speculative economic bubbles.

There have been famous stock market crashes that have ended in the loss of billions of dollars and wealth destruction on a massive scale. An increasing number of people are involved in the stock market, especially since the social security and retirement plans are being increasingly privatized and linked to stocks and bonds and other elements of the market. There have been a number of famous stock market crashes like the Wall Street Crash of 1929, the stock market crash of 1973–4, the Black Monday of 1987, the Dot-com bubble of 2000, and the Stock Market Crash of 2008.

One of the most famous stock market crashes started October 24, 1929 on Black Thursday. The Dow Jones Industrial lost 50% during this stock market crash. It was the beginning of the Great Depression. Another famous crash took place on October 19, 1987 – Black Monday. The crash began in Hong Kong and quickly spread around the world.

By the end of October, stock markets in Hong Kong had fallen 45.5%, Australia 41.8%, Spain 31%, the United Kingdom 26.4%, the United States 22.68%, and Canada 22.5%. Black Monday itself was the largest one-day percentage decline in stock market history - the Dow Jones fell by 22.6% in a day. The names “Black Monday” and “Black Tuesday” are also used for October 28-29, 1929, which followed Terrible Thursday--the starting day of the stock market crash in 1929.

The crash in 1987 raised some puzzles-–main news and events did not predict the catastrophe and visible reasons for the collapse were not identified. This event raised questions about many important assumptions of modern economics, namely, the theory of rational human conduct, the theory of market equilibrium and the hypothesis of market efficiency. For some time after the crash, trading in stock exchanges worldwide was halted, since the exchange computers did not perform well owing to enormous quantity of trades being received at one time. This halt in trading allowed the Federal Reserve system and central banks of other countries to take measures to control the spreading of worldwide financial crisis. In the United States the SEC introduced several new measures of control into the stock market in an attempt to prevent a re-occurrence of the events of Black Monday.

Computer systems were upgraded in the stock exchanges to handle larger trading volumes in a more accurate and controlled manner. The SEC modified the margin requirements in an attempt to lower the volatility of common stocks, stock options and the futures market. The New York Stock Exchange and the Chicago Mercantile Exchange introduced the concept of a circuit breaker. The circuit breaker halts trading if the Dow declines a prescribed number of points for a prescribed amount of time.

% drop time of drop close trading for
10% drop before 2PM one hour halt
10% drop 2PM - 2:30PM half-hour halt
10% drop after 2:30PM market stays open
20% drop before 1PM halt for two hours
20% drop 1PM - 2PM halt for one hour
20% drop after 2PM close for the day
30% drop any time during day close for the day

Stock market index

Main article: Stock market index

The movements of the prices in a market or section of a market are captured in price indices called stock market indices, of which there are many, e.g., the S&P, the FTSE and the Euronext indices. Such indices are usually market capitalization weighted, with the weights reflecting the contribution of the stock to the index. The constituents of the index are reviewed frequently to include/exclude stocks in order to reflect the changing business environment.

Derivative instruments

Main article: Derivative (finance)

Financial innovation has brought many new financial instruments whose pay-offs or values depend on the prices of stocks. Some examples are exchange-traded funds (ETFs), stock index and stock options, equity swaps, single-stock futures, and stock index futures. These last two may be traded on futures exchanges (which are distinct from stock exchanges—their history traces back to commodities futures exchanges), or traded over-the-counter. As all of these products are only derived from stocks, they are sometimes considered to be traded in a (hypothetical) derivatives market, rather than the (hypothetical) stock market.

Leveraged strategies

Stock that a trader does not actually own may be traded using short selling; margin buying may be used to purchase stock with borrowed funds; or, derivatives may be used to control large blocks of stocks for a much smaller amount of money than would be required by outright purchase or sale.

Short selling

Main article: Short selling

In short selling, the trader borrows stock (usually from his brokerage which holds its clients' shares or its own shares on account to lend to short sellers) then sells it on the market, hoping for the price to fall. The trader eventually buys back the stock, making money if the price fell in the meantime or losing money if it rose. Exiting a short position by buying back the stock is called "covering a short position." This strategy may also be used by unscrupulous traders in illiquid or thinly traded markets to artificially lower the price of a stock. Hence most markets either prevent short selling or place restrictions on when and how a short sale can occur. The practice of naked shorting is illegal in most (but not all) stock markets.

Margin buying

Main article: margin buying

In margin buying, the trader borrows money (at interest) to buy a stock and hopes for it to rise. Most industrialized countries have regulations that require that if the borrowing is based on collateral from other stocks the trader owns outright, it can be a maximum of a certain percentage of those other stocks' value. In the United States, the margin requirements have been 50% for many years (that is, if you want to make a $1000 investment, you need to put up $500, and there is often a maintenance margin below the $500).

A margin call is made if the total value of the investor's account cannot support the loss of the trade. (Upon a decline in the value of the margined securities additional funds may be required to maintain the account's equity, and with or without notice the margined security or any others within the account may be sold by the brokerage to protect its loan position. The investor is responsible for any shortfall following such forced sales.)

Regulation of margin requirements (by the Federal Reserve) was implemented after the Crash of 1929. Before that, speculators typically only needed to put up as little as 10 percent (or even less) of the total investment represented by the stocks purchased. Other rules may include the prohibition of free-riding: putting in an order to buy stocks without paying initially (there is normally a three-day grace period for delivery of the stock), but then selling them (before the three-days are up) and using part of the proceeds to make the original payment (assuming that the value of the stocks has not declined in the interim).

New issuance

Main article: Thomson Financial league tables

Global issuance of equity and equity-related instruments totaled $505 billion in 2004, a 29.8% increase over the $389 billion raised in 2003. Initial public offerings (IPOs) by US issuers increased 221% with 233 offerings that raised $45 billion, and IPOs in Europe, Middle East and Africa (EMEA) increased by 333%, from $ 9 billion to $39 billion.

Investment strategies

Main article: Stock valuation

One of the many things people always want to know about the stock market is, "How do I make money investing?" There are many different approaches; two basic methods are classified as either fundamental analysis or technical analysis. Fundamental analysis refers to analyzing companies by their financial statements found in SEC Filings, business trends, general economic conditions, etc. Technical analysis studies price actions in markets through the use of charts and quantitative techniques to attempt to forecast price trends regardless of the company's financial prospects. One example of a technical strategy is the Trend following method, used by John W. Henry and Ed Seykota, which uses price patterns, utilizes strict money management and is also rooted in risk control and diversification.

Additionally, many choose to invest via the index method. In this method, one holds a weighted or unweighted portfolio consisting of the entire stock market or some segment of the stock market (such as the S&P 500 or Wilshire 5000). The principal aim of this strategy is to maximize diversification, minimize taxes from too frequent trading, and ride the general trend of the stock market (which, in the U.S., has averaged nearly 10%/year, compounded annually, since World War II).

Taxation

Main article: Capital gains tax

According to much national or state legislation, a large array of fiscal obligations are taxed for capital gains. Taxes are charged by the state over the transactions, dividends and capital gains on the stock market, in particular in the stock exchanges. However, these fiscal obligations may vary from jurisdiction to jurisdiction because, among other reasons, it could be assumed that taxation is already incorporated into the stock price through the different taxes companies pay to the state, or that tax free stock market operations are useful to boost economic growth.

See also

Lists

References

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  8. ^ World Federation of Exchanges Monthly YTD Data
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  10. ^ Retrieved January 24, 2010.
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  12. ^ Mandelbrot, Benoit & Hudson, Richard L. (2006). The Misbehavior of Markets: A Fractal View of Financial Turbulence, annot. ed.. Basic Books. ISBN 0465043577.
  13. ^ Taleb, Nassim Nicholas (2008). Fooled by Randomness: The Hidden Role of Chance in Life and in the Markets, 2nd ed.. Random House. ISBN 1400067936.
  14. ^ Tversky, A. & Kahneman, D. (1974). "Judgement under uncertainty: heuristics and biases". Science 185: 1124–1131. doi:10.1126/science.185.4157.1124.
  15. ^ Stephen Morris and Hyun Song Shin, Oxford Review of Economic Policy, vol. 15, no 3, 1999.
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  18. ^ a b c Shiller, Robert (2005). Irrational Exuberance (2d ed.). Princeton University Press. ISBN 0-691-12335-7.
  19. ^ Chris Farrell. "Where are the circuit breakers". http://www.publicradio.org/columns/marketplace/gettingpersonal/2008/10/where_are_the_stock_market_cir.html. Retrieved 2008-10-16.

Further reading

External links

Wikiquote has a collection of quotations related to: Stock market
Look up stock market in Wiktionary, the free dictionary.
Stock market
Types of stocks Stock · Common stock · Preferred stock · Outstanding stock · Treasury stock · Authorised stock · Restricted stock · Concentrated stock · Golden share
Participants Investor · Stock trader/investor · Market maker · Floor trader · Floor broker · Broker-dealer
Exchanges Stock exchange · List of stock exchanges · Over-the-counter · Electronic Communication Network
Stock valuation Gordon model · Dividend yield · Earnings per share · Book value · Earnings yield · Beta · Alpha · CAPM · Arbitrage pricing theory · T-Model
Financial ratios P/CF ratio · P/E · PEG · P/S ratio · P/B ratio · D/E ratio · Dividend payout ratio · Dividend cover · SGR · ROIC · ROCE · ROE · ROA · EV/EBITDA · RSI · RAROC · Sharpe ratio · Treynor ratio · Cap rate
Trading theories and strategies Efficient-market hypothesis · Fundamental analysis · Technical analysis · Modern portfolio theory · Post-modern portfolio theory · Mosaic theory · Pairs trade
Related terms Dividend · Stock split · Reverse stock split · Growth stock · Speculation · Trade · IPO · Market trend · Short selling · Momentum · Day trading · DuPont Model · Dark liquidity · Market depth · Margin · Rally · Volatility · Free float

Categories: Stock market

 

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