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Securities & exchanges

Settlement risk

Settlement risk, also known as delivery risk or counterparty risk, is the risk that a counterparty (or intermediary agent) fails to deliver a security or its value in cash as per agreement after the first party has delivered the security or cash value. The term covers factors incidental to the settlement process that may suspend or prevent a trade from completing, even should the partie

Finance

Shape risk

Shape risk in finance is a type of basis risk when hedging a load profile with standard hedging products having a lower granularity. In other words, a commodity supplier wants to pre-purchase supplies for expected demand, but can only buy in fixed amounts that are bigger or smaller than the demand forecasted. This means it has to either over order or under order and make up the differe

Securities & exchanges

Share price

A share price is the price of a single share of a number of saleable equity shares of a company.

Securities & exchanges

Share repurchase

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

Trading basics

Shares outstanding

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.

Finance

Sharpe ratio

In finance, the Sharpe ratio (also known as the Sharpe index, the Sharpe measure, and the reward-to-variability ratio) measures the performance of an investment such as a security or portfolio compared to a risk-free asset, after adjusting for its risk. It is defined as the difference between the returns of the investment and the risk-free return, divided by the standard deviation of the

Finance

Short (finance)

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.

Trading basics

Short-term rental

Short-term rentals (STR) are furnished lodging rented for short periods of time. They can be used as alternatives to hotels for vacation rentals and housing during relocation. They are usually reserved via online marketplaces.

Trading basics

Shrinkflation

In economics, shrinkflation, also known as package downsizing, weight-out, and price pack architecture is the reduction of available products, in size or quantity, while the prices remain the same. The word is a portmanteau of the words shrink and inflation and was coined as the counterpart to economic inflation, wherein prices rise while the product remains unchanged. A related term, sk

Banking

Silver standard

The silver standard is a monetary system in which the standard economic unit of account is a fixed weight of silver. Silver was far more widespread than gold as the monetary standard worldwide, from the Sumerians c. 3000 BC until 1873. Following the discovery in the 16th century of large deposits of silver at the Cerro Rico in Potosí, Bolivia, an international silver standard came into e

Finance

Single Audit

In the United States, the Single Audit, Subpart F of the OMB Uniform Guidance, is a rigorous, organization-wide audit or examination of an entity that expends $750,000 or more of federal assistance (commonly known as federal funds, federal grants, or federal awards) received for its operations. Usually performed annually, the Single Audit's objective is to provide assurance to the US fed

Securities & exchanges

Single-price auction

Single-price auctions are a pricing method in securities auctions that give all purchasers of an issue the same purchase price. They can be perceived as modified Dutch auctions. This method has been used since 1992 when it debuted as an experiment of the U.S. Treasury for all auctions of 2-year and 5-year notes. There is only one main difference between the multiple-price system and the

Trading basics

Situation analysis

In strategic management, situation analysis refers to a collection of methods that managers use to analyze an organization's internal and external environment to understand the organization's capabilities, customers, and business environment. The situation analysis can include several methods of analysis such as the 5C analysis, SWOT analysis and Porter's five forces analysis.

Trading basics

Slippage (finance)

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.

Trading basics

Social cooperative

Social cooperatives exist to provide social services such as the care of children, elderly and disabled people, and the integration of unemployed people into the workforce. The phenomenon is most developed in Italy, but exists in various forms in many countries. In countries such as Sweden and Britain they exist without any special legislation, while elements of the Italian model have be

Trading basics

Social finance

Social finance is a category of financial services that aims to leverage private capital to address challenges in areas of social and environmental need. Having gained popularity after the 2008 financial crisis, it is notable for its public benefit focus. Mechanisms of creating shared social value are not new; however, social finance is conceptually unique as an approach to solving socia

Trading basics

Social marketing

Social marketing is a marketing approach which focuses on influencing behavior with the primary goal of achieving the common good. It utilizes the elements of commercial marketing and applies them to social issues. However, to see social marketing as only the use of standard commercial marketing practices to achieve non-commercial goals is an oversimplified view. Social marketing has ex

Trading basics

Social media marketing

Social media marketing is the use of social media platforms and websites to promote a product or service. Although the terms e-marketing and digital marketing are still dominant in academia, social media marketing is becoming more popular for practitioners and researchers.

Trading basics

Social media mining

Social media mining is the process of obtaining data from user-generated content on social media in order to extract actionable patterns, form conclusions about users, and act upon the information. Mining supports targeting advertising to users or academic research. The term is an analogy to the process of mining for minerals. Mining companies sift through raw ore to find the valuable mi

Finance

Social trading

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.

Trading basics

Socially responsible investing

Socially responsible investing (SRI) is any investment strategy which seeks to consider financial return alongside ethical, social or environmental goals. The areas of concern recognized by SRI practitioners are often linked to environmental, social and governance (ESG) topics.

Finance

Sortino ratio

The Sortino ratio measures the risk-adjusted return of an investment asset, portfolio, or strategy. It is a modification of the Sharpe ratio but penalizes only those returns falling below a user-specified target or required rate of return, while the Sharpe ratio penalizes both upside and downside variance equally. Though both ratios measure an investment's risk-adjusted return, they do s

Trading basics

Split capital investment trust

A split capital investment trust (split) is a type of investment trust which issues different classes of share to give the investor a choice of shares to match their needs. Most splits have a limited life determined at launch known as the wind-up date. Typically the life of a split capital trust is five to ten years.

Securities & exchanges

Squarepoint Capital

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.

Securities & exchanges

Squeeze-out

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.

Trading basics

Stackelberg competition

The Stackelberg leadership model is a strategic game in economics in which the leader firm moves first and then the follower firms move sequentially (hence, it is sometimes described as the leader-follower game). It is named after the German economist Heinrich Freiherr von Stackelberg who published Marktform und Gleichgewicht (Market Structure and Equilibrium) in 1934, which described th

Trading basics

Standard of deferred payment

In economics, standard of deferred payment is a function of money. It is the function of being a widely accepted way to value a debt, thereby allowing goods and services to be acquired now and paid for in the future.

Trading basics

Standardized approach (credit risk)

The term standardized approach (or standardised approach) refers to a set of credit risk measurement techniques proposed under Basel II, which sets capital adequacy rules for banking institutions.

Banking

Standardized approach (operational risk)

In the context of operational risk, the standardized approach or standardised approach is a set of operational risk measurement techniques proposed under Basel II capital adequacy rules for banking institutions.

Trading basics

Statistical arbitrage

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.

Finance

Stochastic calculus

Stochastic calculus is a branch of mathematics that operates on stochastic processes. It allows a consistent theory of integration to be defined for integrals of stochastic processes with respect to stochastic processes. This field was created and started by the Japanese mathematician Kiyosi Itô during World War II.

Finance

Stochastic differential equation

A stochastic differential equation (SDE) is a differential equation in which one or more of the terms is a stochastic process, resulting in a solution which is also a stochastic process. SDEs have many applications throughout pure mathematics and are used to model various behaviours of stochastic models such as prices of listed company shares, random growth models or physical systems tha

Finance

Stochastic drift

In probability theory, stochastic drift is the change of the average value of a stochastic (random) process. A related concept is the drift rate, which is the rate at which the average changes. For example, a process that counts the number of heads in a series of

Trading basics

Stochastic oscillator

Stochastic oscillator is a momentum indicator within technical analysis that uses support and resistance levels as an oscillator. George Lane developed this indicator in the late 1950s. The term stochastic refers to the point of a current price in relation to its price range over a period of time. This method attempts to predict price turning points by comparing the closing price of a

Finance

Stochastic partial differential equation

In mathematics, stochastic partial differential equations (SPDEs) are a generalization of partial differential equations via random force terms and coefficients, in the same way ordinary stochastic differential equations generalize ordinary differential equations.

Trading basics

Stock

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

Securities & exchanges

Stock dilution

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

Securities & exchanges

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

Securities & exchanges

Stock fund

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

Securities & exchanges

Stock market index

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.

Securities & exchanges

Stock split

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.

Finance

Stock trader

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

Trading basics

Stock valuation

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

Fiat currencies

Store of value

A store of value is any commodity or asset that would normally retain purchasing power into the future and is the function of the asset that can be saved, retrieved and exchanged at a later time, and be predictably useful when retrieved.

Finance

Streamline refinancing

Streamline refinancing is a mortgage refinancing process in the United States for Federal Housing Administration (FHA) mortgages that reuses the original loan's paperwork allowing quicker refinancing. The program was introduced by the FHA as a way to speed up the home refinancing process. By reusing the original loan's paperwork, the process to refinance a home was reduced from a few mo

Trading basics

Stress test (financial)

In finance, a stress test is an analysis or simulation designed to determine the ability of a given financial instrument or financial institution to deal with an economic crisis. Instead of doing financial projection on a "best estimate" basis, a company or its regulators may do stress testing where they look at how robust a financial instrument is in certain crashes, a form of scenario

Securities & exchanges

Style investing

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.

Trading basics

Suggestion box

The suggestion box is used for collecting slips of paper with input from customers and patrons of a particular organization. Suggestion boxes may also exist internally, within an organization, such as means for garnering employee opinion.

Finance

Supply chain finance

Supply chain finance (SCF), also known as supplier finance or reverse factoring, comprises a suite of financial solutions that aim to manage working capital and liquidity for businesses within a supply chain. These arrangements are typically initiated by a buyer to allow their suppliers to access funding for their accounts receivable at interest rates based on the buyer's credit rating,

Trading basics

Supply chain management

In commerce, supply chain management (SCM) deals with a system of procurement (purchasing raw materials/components), operations management, logistics and marketing channels, through which raw materials can be developed into finished products and delivered to their end customers. A more narrow definition of supply chain management is the "design, planning, execution, control, and monitori

Finance

Swing trading

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

Trading basics

Symbolic capital

In sociology and anthropology, symbolic capital can be referred to as the resources available to an individual on the basis of honor, prestige or recognition, and serves as value that one holds within a culture. A war hero, for example, may have symbolic capital in the context of running for political office.

Trading basics

Systematic investment plan

A systematic investment plan (SIP) is an investment vehicle offered by many mutual funds to investors, allowing them to invest small amounts periodically instead of lump sums. The frequency of investment is usually weekly, monthly or quarterly.

Finance

Systematic risk

In finance and economics, systematic risk (in economics often called aggregate risk or undiversifiable risk) is vulnerability to events which affect aggregate outcomes such as broad market returns, total economy-wide resource holdings, or aggregate income. In many contexts, events like earthquakes, epidemics and major weather catastrophes pose aggregate risks that affect not only the dis

Finance

Systemic risk

In finance, systemic risk is the risk of collapse of an entire financial system or entire market, as opposed to the risk associated with any one individual entity, group or component of a system, that can be contained therein without harming the entire system. It can be defined as "financial system instability, potentially catastrophic, caused or exacerbated by idiosyncratic events or co

Trading basics

T-model

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.

Trading basics

Tacit collusion

Tacit collusion is a collusion between competitors who do not explicitly exchange information but achieve an agreement about coordination of conduct. There are two types of tacit collusion: concerted action and conscious parallelism. In a concerted action, also known as concerted activity, competitors exchange some information without reaching any explicit agreement, while conscious para

Finance

Tail risk

Tail risk, sometimes called "fat tail risk", is the financial risk of an asset or portfolio of assets moving more than three standard deviations from its current price, above the risk of a normal distribution. Tail risks include low-probability events arising at both ends of a normal distribution curve, also known as tail events. However, as investors are generally more concerned with un

Finance

Taleb distribution

In economics and finance, a Taleb distribution is the statistical profile of an investment which normally provides a payoff of small positive returns, while carrying a small but significant risk of catastrophic losses. The term was coined by journalist Martin Wolf and economist John Kay to describe investments with a "high probability of a modest gain and a low probability of huge losses

Securities & exchanges

Tax loss harvesting

Tax loss harvesting (TLH) refers to a category of tax-efficient investment strategies that seek to accelerate the realization of capital losses and defer the realization of capital gains.

Finance

Tax transparent fund

A tax transparent fund (TTF) - also known as an authorised contractual scheme fund - is the proposed authorised collective investment scheme structure in the United Kingdom once the UK Finance Bill 2012 becomes an act and when the Financial Services and Markets Act 2000 and the Corporation Tax Act 2010 are amended, sometime mid-2012. TTFs will then have the option to be based in the UK r

Trading basics

Taxation of private equity and hedge funds

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.

Fiat currencies

Taxpayers' money

Taxpayers' money or taxpayer dollars is a phrase that supposes government spending is dispersed from an aggregation of tax revenues, and emphasises a putative cohort of taxpayers from whom said revenue is collected. The phrase is associated with Margaret Thatcher, who asserted in 1983 that "the state has no source of money, other than the money people earn themselves. If the state wishes

Fiat currencies

Technical analysis

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

Finance

Technical indicator

In technical analysis in finance, a technical indicator is a mathematical calculation based on historic price, volume, or (in the case of futures contracts) open interest information that aims to forecast financial market direction. Technical indicators are a fundamental part of technical analysis and are typically plotted as a chart pattern to try to predict the market trend. Indicator

Trading basics

Technocapitalism

Technocapitalism refers to a contemporary economic and social system characterized by the dominance of technology-driven capital, where technological innovation becomes a central component of economic growth and wealth accumulation. This term encapsulates the interplay between technology and capitalism, highlighting how advancements in technology influence economic structures, labor mark

Trading basics

Technology adoption life cycle

The technology adoption lifecycle is a sociological model that describes the adoption or acceptance of a new product or innovation, according to the demographic and psychological characteristics of defined adopter groups. The process of adoption over time is typically illustrated as a classical normal distribution or "bell curve". The model calls the first group of people to use a new pr

Trading basics

Television advertisement

A television advertisement (also called a commercial, spot, break, advert, or ad) is a span of television programming produced and paid for by an organization. It conveys a message promoting, and aiming to market, a product, service or idea. Advertisers and marketers may refer to television commercials as TVCs, while Japan refers to them as CMs (Commercial Messages).

Trading basics

The Gold Standard and the Logic of Naturalism

The Gold Standard and the Logic of Naturalism is a non-fiction book written by literary theorist and author Walter Benn Michaels and first published in 1988 by the University of California Press.

Fiat currencies

The Market for Lemons

"The Market for 'Lemons': Quality Uncertainty and the Market Mechanism" is a widely cited seminal paper in the field of economics which explores the concept of asymmetric information in markets. The paper was written in 1970 by George Akerlof and published in the Quarterly Journal of Economics. The paper's theory has since been applied to many types of markets.

Finance

The Philosophy of Money

The Philosophy of Money (1900; German: Philosophie des Geldes) is a book on economic sociology by German sociologist and social philosopher Georg Simmel. Considered to be the theorist's greatest work, Simmel's book views money as a structuring agent that helps people understand the totality of life.

Securities & exchanges

Thematic investing

Thematic investing is a form of investment that aims to identify macro-level trends and the underlying investments that stand to benefit from the materialisation of those trends. Thematic investing aims to seize opportunities arising from megatrends likely to shape the global economy in the decades ahead.

Finance

Theory of fructification

In economics, the theory of fructification is a theory of the interest rate which was proposed by French economist and finance minister Anne Robert Jacques Turgot in his 1770 book Reflections on the Formation and Distribution of Wealth. The term theory of fructification is due to Eugen von Böhm-Bawerk, who considered Turgot as the first economist who tried to develop a scientific explana

Fiat currencies

Thomas H. Greco Jr.

Thomas Henry Greco Jr. (October 9, 1936 – June 15, 2026) was an American community economist, who wrote and consulted on monetary exchange alternatives, including private credit clearing systems, complementary currencies and local currencies.

Trading basics

Time preference

In behavioral economics, time preference (or time discounting, delay discounting, temporal discounting, long-term orientation) is the current relative valuation placed on receiving a good at an earlier date compared with receiving it at a later date. Applications for these preferences include finance, health, and climate change.

Finance

Tobin's q

Tobin's q (or the q ratio, and Marris's v), is the ratio between a physical asset's market value and its replacement cost. It was first introduced by Robin Marris as a firm-level microeconomic variable in his 1964 book The Economic Theory of Managerial Capitalism, and was shortly afterwards further analysed by Richard Kahn in early drafts of his paper Notes on the Rate of Interest and th

Banking

Too big to fail

"Too big to fail" (TBTF) is a theory in banking and finance that asserts that certain corporations, particularly financial institutions, are so large and so interconnected with an economy that their failure would be disastrous to the greater economic system, and therefore should be supported by government when they face potential failure. The colloquial term "too big to fail" was popular

Trading basics

Touchpoint

In marketing, a touchpoint describes any instance where a consumer interacts with an organisation's brand or image. This can include traditional advertising or company-owned resources such as a website, public exposure, and personal recommendations.

Finance

Tracking error

In finance, tracking error or active risk is a measure of the risk in an investment portfolio that is due to active management decisions made by the portfolio manager; it indicates how closely a portfolio follows the index to which it is benchmarked. The best measure is the standard deviation of the difference between the portfolio and index returns.

Securities & exchanges

Tracking stock

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

Finance

Trade (finance)

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

Finance

Trade finance

Trade finance is a phrase used to describe different strategies that are employed to make international trade easier. It signifies financing for trade, and it concerns both domestic and international trade transactions. A trade transaction requires a seller of goods and services as well as a buyer. Various intermediaries such as banks and financial institutions can facilitate these trans

Finance

Trade finance technology

Trade finance technology (abbreviated TradeTech, tradetech, or sometimes Trade Tech) refers to the use of technology, innovation, and software to support and digitally transform the trade finance industry. TradeTech can be seen as a subcategory under FinTech. As digital information becomes more readily accessible, convenient, and available, the trade finance industry is being gradually m

Trading basics

Trade-off theory of capital structure

The trade-off theory of capital structure is the idea that a company chooses how much debt finance and how much equity finance to use by balancing the costs and benefits. The classical version of the hypothesis goes back to Kraus and Litzenberger who considered a balance between the dead-weight costs of bankruptcy and the tax saving benefits of debt. Often agency costs are also included

Trading basics

Traditional investments

In finance, the notion of traditional investments refers to putting money into well-known assets (such as bonds, cash, real estate, and equity shares) with the expectation of capital appreciation, dividends, and interest earnings. Traditional investments are to be contrasted with alternative investments.

Trading basics

Treasury basis trade

Treasury basis trading is a financial strategy that involves taking offsetting positions in a cash market instrument (typically a U.S. Treasury bond) and its related derivative, such as a Treasury futures contract. The strategy seeks to exploit pricing discrepancies between the two instruments, which are expected to converge over time. It is a specialized form of basis trading applied to

Fiat currencies

Treasury view

In macroeconomics, particularly in the history of economic thought, the Treasury view is the assertion that fiscal policy has no effect on the total amount of economic activity and unemployment, even during times of economic recession. This view was most famously advanced in the 1930s (during the Great Depression) by the staff of the British Chancellor of the Exchequer. The position can

Securities & exchanges

Trend following trading

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.

Finance

Treynor ratio

In finance, the Treynor reward-to-volatility model (sometimes called the reward-to-volatility ratio or Treynor measure), named after American economist Jack L. Treynor, is a measurement of the returns earned in excess of that which could have been earned on an investment that has no risk that can be diversified (e.g., Treasury bills or a completely diversified portfolio), per unit of mar

Trading basics

Trillion dollar club (macroeconomics)

The Trillion dollar club is an unofficial classification of the world's major economies with a gross domestic product (nominal GDP) of more than US$1 trillion per year. As of 2025, it included 21 countries. This does not include purchasing power parity, which increases the GDP of many countries with an undervalued currency, which are usually poorer countries.

Finance

TRIN (finance)

The TRIN, or Arms index, developed by Richard Arms in the 1970s, is a short-term technical analysis stock market trading indicator based on the Advance-Decline Data. The name is short for TRading INdex. The index is calculated as follows:

Finance

Two-moment decision model

In decision theory, economics, and finance, a two-moment decision model is a model that describes or prescribes the process of making decisions in a context in which the decision-maker is faced with random variables whose realizations cannot be known in advance, and in which choices are made based on knowledge of two moments of those random variables. The two moments are almost always t

Trading basics

Ultimate oscillator

The ultimate oscillator is a theoretical concept in finance developed by Larry Williams as a way to account for the problems experienced in most oscillators when used over different lengths of time.

Trading basics

Undertakings for Collective Investment in Transferable Securities Directive 2009

The Undertakings for Collective Investment in Transferable Securities Directive (Directive 2009/65/EC, "UCITS") is a directive of the European Union (EU) that allows collective investment schemes to operate freely throughout the EU on the basis of a single authorisation from one member state. EU member states are entitled to have additional regulatory requirements for the benefit of inve

Trading basics

Unit of account

In economics, unit of account, sometimes called currency unit or monetary unit, is a standard unit of measurement of the market value of goods, services, and other transactions. Also known as a measure of relative worth and a standard of deferred payment, a unit of account is a necessary prerequisite for the formulation of commercial agreements that involve debt.

Finance

United Kingdom insolvency law

United Kingdom insolvency law regulates companies in the United Kingdom which are unable to repay their debts. While UK bankruptcy law concerns the rules for natural persons, the term insolvency is generally used for companies formed under the Companies Act 2006. Insolvency means being unable to pay debts. Since the Cork Report of 1982, the modern policy of UK insolvency law has been to

Trading basics

United States v. Banki

In United States v. Banki, 685 F.3d 99 (2nd Cir. 2011) the Second Circuit Court of Appeals overturned the conviction of Mahmoud Reza Banki. Banki had been convicted of multiple crimes related to allegedly conspiring to violate United States sanctions against Iran by transferring large amounts of money — totaling some $3.4 million — from Iran to the United States.

Securities & exchanges

Uptick rule

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

Networks

Urbit

In computing, Urbit is a decentralized personal server platform based on functional programming in a peer-to-peer network.

Trading basics

User research

User research is the investigation to understand user behaviors, needs and motivations through interviews, surveys, usability evaluations and other forms of feedback methodologies. It is used to understand how people interact with products and evaluate whether design solutions meet their needs. This field of research aims at improving the user experience (UX) of products, services, or p