Industry WIKI

A market maker or liquidity provider is a company or individual that quotes both a buy and a sell price in a tradable asset held in inventory, hoping to make a profit on the difference, which is called the bid–ask spread or turn. This stabilizes the market, reducing price variation (volatility) by setting a trading price range for the asset.

In economics and finance, market manipulation occurs when someone intentionally alters the supply or demand of a security to influence its price. This can involve spreading misleading information, executing misleading trades, or manipulating quotes and prices.

An investment strategy or portfolio is considered market-neutral if it seeks to avoid some form of market risk entirely, typically by hedging. To evaluate market neutrality requires specifying the risk to avoid. For example, convertible arbitrage attempts to fully hedge fluctuations in the price of the underlying common stock. A portfolio is truly market-neutral if it exhibits zero corre

Market sentiment, also known as investor attention, is the general prevailing attitude of investors as to anticipated price development in a market. This attitude is the accumulation of a variety of fundamental and technical factors, including price history, economic reports, seasonal factors, and national and world events. If investors expect upward price movement in the stock market, t

Market timing is the strategy of making buying or selling decisions of financial assets (often stocks) by attempting to predict future market price movements (market trends). The prediction may be based on an outlook of market or economic conditions resulting from technical or fundamental analysis. This is an investment strategy based on the outlook for an aggregate market rather than fo

A market trend is a perceived tendency of the financial markets to move in a particular direction over time. Analysts classify these trends as secular for long time-frames, primary for medium time-frames, and secondary for short time-frames. Traders attempt to identify market trends using technical analysis, a framework which characterizes market trends as predictable price tendencies wi

Mean reversion is a financial term for the assumption that an asset's price will tend to converge to the average price over time.

MetaTrader 4, also known as MT4, is an electronic trading platform widely used by online retail foreign exchange speculative traders. It was developed by MetaQuotes Software and released in 2005. The software is licensed to foreign exchange brokers who provide the software to their clients. The software consists of both a client and server component. The server component is run by the br

Mirror trading is a trading selection methodology that can be carried out in both the foreign exchange and the stock markets; however, this is much more common in trading in the foreign exchange market.

A momentum crash is a sudden and significant decline in the performance of a momentum-based investment strategy, which involves buying assets that have shown an upward price trend and selling those with a downward trend. While this strategy can be profitable, it is also prone to sudden reversals that can result in large losses. These reversals can occur without warning, leading to a shar

Momentum investing is a system of buying stocks or other securities that have had high returns over the past three-to-twelve months, and selling those that have had poor returns over the same period.

The money flow index (MFI) is an oscillator that ranges from 0 to 100. It is used to show the money flow (an approximation of the dollar value of a day's trading) over several days.

The money market is a component of the economy that provides short-term funds. The money market deals in short-term loans, generally for a period of a year or less.

The Montreal Exchange (MX; French: Bourse de Montréal), formerly the Montreal Stock Exchange (MSE), is a derivatives exchange, located in Montreal, Quebec, Canada that trades futures contracts and options on equities, indices, currencies, ETFs, energy and interest rates. Since 1965, it has been located in the Tour de la Bourse (Stock Exchange Tower), Montreal's third-tallest building. I

The mosaic theory in finance involves the use of security analyst personnel to gather information about a company or corporation to evaluate and determine its financial stability. In addition to public information available to all investors, securities analysts also have access to non-public information which the vast majority of investors do not possess. Trading based on such non-public

A multi-manager fund is an investment product that consists of multiple specialized funds. Each specialized fund may invest across different sectors and markets, or in the same asset class but have different investment styles. For example, large cap value fund versus large cap growth fund.

A multilateral trading facility (MTF) is a European Union regulatory term for a self-regulated financial trading venue. These are alternatives to the traditional stock exchanges where a market is made in securities, typically using electronic systems. The concept was introduced within the Markets in Financial Instruments Directive (MiFID), a European Directive designed to harmonise re

NASDAQ futures are financial futures which launched on June 21, 1999. It is the financial contract futures that allow an investor to hedge with or speculate on the future value of various components of the NASDAQ market index.

Net asset value (NAV) is the value of an entity's assets minus the value of its liabilities, often in relation to open-end, mutual funds, hedge funds, and venture capital funds. Shares of such funds registered with the U.S. Securities and Exchange Commission are usually bought and redeemed at their net asset value. It is also a key figure with regard to hedge funds and venture capital fu

An odd lotter is an investor who purchases shares or other securities in small or unusual quantities. Stocks are typically traded in increments of 100 shares, a quantity known as a round lot or board lot. The cost of 100 shares of a security may be beyond the means of an individual investor, or may represent a larger investment than the investor wishes to make. Thus, the investor purcha

Open outcry is a method of communication between professionals on a stock exchange or futures exchange, typically on a trading floor. It 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.

An order book is the list of orders (manual or electronic) that a trading venue (in particular stock exchanges) uses to record the interest of buyers and sellers in a particular financial instrument. A matching engine uses the book to determine which orders can be fully or partially executed.

The following outline provides an overview and topical guide to finance:

Over-the-counter (OTC) or off-exchange trading or pink sheet trading is done directly between two parties, without the supervision of an exchange. It is contrasted with exchange trading, which occurs via exchanges. A stock exchange has the benefit of facilitating liquidity, providing transparency, and maintaining the current market price. In an OTC trade, the price is not necessarily pub

A pairs trade or pair trading is a market neutral trading strategy enabling traders to profit from virtually any market conditions: uptrend, downtrend, or sideways movement. This strategy is categorized as a statistical arbitrage and convergence trading strategy. Pair trading was pioneered by Gerry Bamberger and later led by Nunzio Tartaglia's quantitative group at Morgan Stanley in the

In finance, a position is the amount of a particular security, commodity or currency held or owned by a person or entity.

Simply stated, post-modern portfolio theory (PMPT) is an extension of the traditional modern portfolio theory (MPT) of Markowitz and Sharpe. Both theories provide analytical methods for rational investors to use diversification to optimize their investment portfolios. The essential difference between PMPT and MPT is that PMPT emphasizes the return that must be earned on an investment in

In finance and mathematics, predictive modelling is the use of statistics to predict outcomes. Most often the event one wants to predict is in the future, but predictive modelling can be applied to any type of unknown event, regardless of when it occurred. For example, predictive models are often used to detect crimes and identify suspects, after the crime has taken place.

Preferred stock (also called preferred shares, preference shares, or simply preferreds) is a component of share capital that may have any combination of features not possessed by common stock, including properties of both an equity and a debt instrument, and is generally considered a hybrid instrument. Preferred stocks are senior (i.e., higher ranking) to common stock but subordinate to

Price action trading is about reading what the market is doing, so you can deploy the right trading strategy to reap the maximum benefits. In simple words, price action is a trading technique in which a trader reads the market and makes subjective trading decisions based on the price movements, rather than relying on technical indicators or other factors.

The primary market is the part of the capital market that deals with the issuance and sale of securities to purchasers directly by the issuer, with the issuer being paid the proceeds. A primary market means the market for new issues of securities, as distinguished from the secondary market, where previously issued securities are bought and sold. A market is primary if the proceeds of sal

Proprietary trading (also known as prop trading) occurs when a trader trades stocks, bonds, currencies, commodities, their derivatives, or other financial instruments with the firm's own money (instead of using customer funds) to make a profit for itself.

In the context of stock markets, the public float or free float represents the portion of shares of a corporation that are in the hands of public investors as opposed to shares held by promoters, company officers, controlling interest investors, or governments. This number is sometimes seen as a better way of calculating market capitalization, because it provides a more accurate reflecti

A public offering is the offering of securities of a company or a similar corporation to the public. Generally, the securities are to be publicly listed. In most jurisdictions, a public offering requires the issuing company to publish a prospectus detailing the terms and rights attached to the offered security, as well as information on the company itself and its finances. Many other reg

Pump and dump (P&D) is a form of securities fraud that involves artificially inflating the price of an owned stock through false and misleading positive statements (pump), in order to sell the cheaply purchased stock at a higher price (dump).

Quantitative analysis in finance refers to the application of mathematical and statistical methods to problems in financial markets and investment management. Professionals in this field are known as quantitative analysts or quants.

A quantitative fund is an investment fund that relies on systematic, data-driven methods, such as mathematical models, statistical techniques, AI, and machine learning, to make investment decisions, rather than fundamental human analysis. These funds are often referred to as systematic funds, and many employ factor investing strategies such as value and momentum, which are widely studied

In finance, quote stuffing refers to a form of market manipulation employed by high-frequency traders (HFT) that involves quickly entering and withdrawing a large number of orders in an attempt to flood the market. This can create confusion in the market and trading opportunities for high-speed algorithmic traders. The term is relatively new to the financial market lexicon and was coined

Restricted stock, also known as restricted securities, is stock of a company that is not fully transferable (from the stock-issuing company to the person receiving the stock award) until certain conditions (restrictions) have been met. Upon satisfaction of those conditions, the stock is no longer restricted, and becomes transferable to the person holding the award. Restricted stock is of

Returns-based style analysis (RBSA) is a statistical technique used in finance to deconstruct the returns of investment strategies using a variety of explanatory variables. The model results in a strategy's exposures to asset classes or other factors, interpreted as a measure of a fund or portfolio manager's investment style. While the model is most frequently used to show an equity mutu

In finance, a reverse stock split or reverse split is a process by which shares of corporate stock are effectively merged to form a smaller number of proportionally more valuable shares.

Risk arbitrage, also known as merger arbitrage, is an investment strategy that speculates on the successful completion of mergers and acquisitions. An investor that employs this strategy is known as an arbitrageur. Risk arbitrage is a type of event-driven investing in that it attempts to exploit pricing inefficiencies caused by a corporate event.

The risk-free rate of return, usually shortened to the risk-free rate, is the rate of return of a hypothetical investment with scheduled payments over a fixed period of time that is assumed to meet all payment obligations.

S&P 500 futures are financial futures which allow an investor to hedge with or speculate on the future value of various components of the S&P 500 Index market index. S&P 500 futures contracts were first introduced by the Chicago Mercantile Exchange in 1982. The CME added the e-mini option in 1997. The bundle of stocks in the S&P 500 is, per the name, composed of stocks of 500 large compa

The secondary market, also called the aftermarket, is the financial market in which previously issued financial instruments such as shares, bonds, options, and futures are bought and sold. The initial sale of the security by the issuer to a purchaser, who pays proceeds to the issuer, is the primary market. All sales after the initial sale of the security are sales in the secondary market

Sector rotation is a theory of stock market trading patterns.

Securities market participants in the United States include corporations and governments issuing securities, persons and corporations buying and selling a security, the broker-dealers and exchanges which facilitate such trading, banks which safe keep assets, and regulators who monitor the markets' activities. Investors buy and sell through broker-dealers and have their assets retained b

Securitization is the financial practice of pooling contractual debt obligations (such as residential mortgages, commercial mortgages, auto loans, or credit card debt) and selling their associated cash flows to investors. The financial instruments sold in such transactions are known as securities, types of which include bonds, pass-through securities, and collateralized debt obligations

A security is a tradable financial asset. The term commonly refers to any form of financial instrument, but its legal definition varies by jurisdiction. In some countries and languages people commonly use the term "security" to refer to any form of financial instrument, even though the underlying legal and regulatory regime may not have such a broad definition. In some jurisdictions the

Security characteristic line (SCL) is a regression line, plotting performance of a particular security or portfolio against that of the market portfolio at every point in time. The SCL is plotted on a graph where the Y-axis is the excess return on a security over the risk-free return and the X-axis is the excess return of the market in general. The slope of the SCL is the security's beta

Security market line (SML) is the representation of the capital asset pricing model. It displays the expected rate of return of an individual security as a function of systematic, non-diversifiable risk. The risk of an individual risky security reflects the volatility of the return from the security rather than the return of the market portfolio. The risk in these individual risky securi

Sell in May and go away is an investment strategy for stocks based on a theory (sometimes known as the Halloween indicator) that the period from November to April inclusive has significantly stronger stock market growth on average than the other months. In such strategies, stock holdings are sold or minimized at about the start of May and the proceeds held in cash (e.g. a money market fu

Share repurchase, also known as share buyback or stock buyback, is the reacquisition by a company of its own shares. It is an alternative way of returning money to shareholders than dividends. After a repurchase event, the company's stock price is now proportionally higher because of the smaller number of shares outstanding. Repurchases allow stockholders to potentially reduce taxes, by

Shares outstanding are all the shares of a corporation that have been authorized, issued and purchased by investors and are held by them. They are distinguished from treasury shares, which are shares held by the corporation itself, thus representing no exercisable rights. Shares outstanding and treasury shares together amount to the number of issued shares.

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 position, where the investor will profit if the market value of the asset rises. An investor that sells an asset short is, as to that asset, a short seller.

In finance and the stock market, slippage is the difference between the execution price expected by the trader (usually the one indicated by the trading software) and the one at which the transaction actually happens. Market impact, liquidity, and frictional costs may contribute to slippage.

Social trading is a form of investing that allows investors to observe the trading behavior of their peers and expert traders. The primary objective is to follow their investment strategies using copy trading or mirror trading. Social trading requires little or no knowledge about financial markets.

In finance, speculation is the purchase of an asset (a commodity, goods, or real estate) with the hope that that asset will become more valuable in a brief amount of time.

Spoofing is a disruptive algorithmic trading activity employed by traders to outpace other market participants and to manipulate markets. Spoofers feign interest in trading futures, stocks, and other products in financial markets creating an illusion of the demand and supply of the traded asset. In an order driven market, spoofers post a relatively large number of limit orders on one sid

Squarepoint Capital ("Squarepoint") is a global investment management firm headquartered in New York City & London. The firm is known for its quantitative finance approach to investing. Squarepoint has additional offices in Bangalore, Boston, Dubai, Geneva, Hong Kong, Houston, Jersey, London, Madrid, Montreal, New York, Paris, Singapore, and Zug.

A squeeze-out or squeezeout, sometimes synonymous with freeze-out, is the compulsory sale of the shares of minority shareholders of a joint-stock company for which they receive a fair cash compensation.

In finance, statistical arbitrage (Stat Arb or StatArb) is a class of short-term financial trading strategies that employ mean reversion models involving broadly diversified portfolios of securities (hundreds to thousands) held for short periods of time (generally seconds to days). These strategies are supported by substantial mathematical, computational, and trading platforms.

Stocks (also capital stock, or sometimes interchangeably, shares) consist of all the shares by which ownership of a corporation 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 liquidat

Stock dilution, also known as equity dilution, is the decrease in existing shareholders' ownership percentage of a company as a result of the company issuing new equity. New equity increases the total shares outstanding which has a dilutive effect on the ownership percentage of existing shareholders. This increase in the number of shares outstanding can result from a primary market off

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 the issue and redemption of such securities and instruments and capital events including the payment of income and dividends. Securities traded on a stock

A stock fund, or equity fund, is a fund that invests in stocks, also called equity securities. Stock funds can be contrasted with bond funds and money funds. Fund assets are typically mainly in stock, with some amount of cash, which is generally quite small, as opposed to bonds, notes, or other securities. This may be a mutual fund or exchange-traded fund. The objective of an equity fun

In finance, a stock market index or stock index is an index that measures the performance of a stock market, or of a subset of a stock market. It helps investors compare current stock price levels with past prices to calculate market performance.

A stock split or stock divide increases the number of shares in a company. For example, after a 2-for-1 split, each investor will own double the number of shares, and each share will be worth half as much. A stock split causes a decrease of market price of individual shares, but does not change the total market capitalization of the company: stock dilution does not occur.

A stock trader or equity trader or share trader, also called a stock investor, is a person or company involved in trading stocks and attempting to profit from the purchase and sale of those securities. Stock traders may be an investor, agent, hedger, arbitrageur, speculator, or stockbroker. Such equity trading in large publicly traded companies may be through a stock exchange. Stock shar

Stock valuation is the method of calculating theoretical values of companies and their stocks. The main use of these methods is to predict future market prices, or more generally, potential market prices, and thus to profit from price movement – stocks that are judged undervalued (with respect to their theoretical value) are bought, while stocks that are judged overvalued are sold, in th

Style investing is an investment approach in which securities are grouped into categories, and portfolio allocation is based on selection among "styles" rather than among individual securities.

Swing trading is a speculative trading strategy in financial markets where a tradable asset is held for one or more days in an effort to profit from price changes or swings. A swing trading position is typically held longer than a day trading position, but shorter than buy-and-hold investment strategies that can be held for months or years. Profits can be sought by either buying an asse

In finance, the T-model is a formula that states the returns earned by holders of a company's stock in terms of accounting variables obtainable from its financial statements. The T-model connects fundamentals with investment return, allowing an analyst to make projections of financial performance and turn those projections into a required return that can be used in investment selection.

Private equity funds and hedge funds are private investment vehicles used to pool investment capital, usually for a small group of large institutional or wealthy individual investors. They are subject to favorable regulatory treatment in most jurisdictions from which they are managed, which allows them to engage in financial activities that are off-limits for more regulated companies.

In finance, technical analysis is an analysis methodology for analysing and forecasting the direction of prices through the study of past market data, primarily price and volume. As a type of active management, it stands in contradiction to much of modern portfolio theory. The efficacy of technical analysis is disputed by the efficient-market hypothesis, which states that stock market pr

Tracking stock (also known as letter stock and targeted stock) is a specialized equity offering issued by a company that is based on the operations of a defined business within the larger organization (such as, for instance, a wholly owned subsidiary of a diversified firm). Therefore, the tracking stock will be traded at a price related to the operations of the specific division of the c

In finance, a trade is an exchange of a security such as stocks, bonds, commodities, currencies, derivatives or any valuable financial instrument for "cash". Such a financial transaction is usually done by participants of an exchange such as a stock exchange, commodity exchange or futures exchange with a short-dated promise to pay in the currency of the country where the 'exchange' is lo

TradElect was the London Stock Exchange's main electronic trading platform from 2007 to 2011. It ran on HP ProLiant servers running Windows Server 2003, using .NET technology and Microsoft SQL Server 2000. Its development took four years from project inception to rollout and had a total cost of £40 million.

Trend following or trend trading is a trading strategy according to which one should buy an asset when its price trend goes up, and sell when its trend goes down, expecting price movements to continue.

Triangular arbitrage (also referred to as cross currency arbitrage or three-point arbitrage) is the act of exploiting an arbitrage opportunity resulting from a pricing discrepancy among three different currencies in the foreign exchange market. A triangular arbitrage strategy involves three trades, exchanging the initial currency for a second, the second currency for a third, and the thi

The uptick rule is a trading restriction that states that short selling a stock is allowed only on an uptick. For the rule to be satisfied, the short must be either at a price above the last traded price of the security, or at the last traded price when the most recent movement between traded prices was upward (i.e. the security has traded below the last-traded price more recently than a

Value averaging (VA), also known as dollar value averaging (DVA), is a technique for adding to an investment portfolio that is controversially claimed to provide a greater return than other methods such as dollar cost averaging. With the method, investors add to (or withdraw from) their portfolios in such a way that the portfolio balance reaches a predetermined monthly or quarterly targe

Value investing is an investment paradigm that involves buying securities that appear underpriced by some form of fundamental analysis. Modern value investing derives from the investment philosophy taught by Benjamin Graham and David Dodd at Columbia Business School starting in 1928 and subsequently developed in their 1934 text Security Analysis.

In finance, volatility (usually denoted by "σ") is the degree of variation of a trading price series over time, usually measured by the standard deviation of logarithmic returns.

In finance, volatility arbitrage (vol arb) is a term for financial arbitrage techniques directly dependent and based on volatility.

Voting interest (or voting power) in business and accounting means the total number, or percent, of votes entitled to be cast on the issue at the time the determination of voting power is made, excluding a vote which is contingent upon the happening of a condition or event which has not occurred at the time.

A vulture fund is a hedge fund or private-equity fund that invests in debt considered to be very weak or in default, known as distressed debt. Investors in the fund profit by buying debt at a discounted price on a secondary market and then using numerous methods to sell the debt for more than the purchasing price. Debtors include companies, countries, and individuals.

XTX Markets Limited is a British algorithmic trading company based in London. It was founded in January 2015 by Alexander Gerko, who is currently co-CEO alongside Hans Buehler. The company employs around 300 people globally (as of 2026) and uses state-of-the-art machine learning technology to produce price forecasts for over 50,000 financial instruments across equities, fixed income, cur

In finance, the yield on a security is a measure of the ex-ante return to a holder of the security. It is one component of return on an investment, the other component being the change in the market price of the security. It is a measure applied to fixed income securities, common stocks, preferred stocks, convertible stocks and bonds, annuities and real estate investments.

York Capital Management (York Capital) is an American investment management company, founded by James Dinan and headquartered in New York City.