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Digital assets and currencies

Understand assets, networks and trading mechanics with sources you can check.

Trading basics

Self-invested personal pension

A self-invested personal pension (SIPP) is the name given to the type of UK government-registered personal pension scheme which allows individuals to make their own investment decisions from a wide range of investments by HM Revenue and Customs (HMRC).

Trading basics

Sell in May

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

Securities & exchanges

Settlement (finance)

Settlement is the "final step in the transfer of ownership involving the physical exchange of securities or payment". After settlement, the obligations of all the parties have been discharged and the transaction is considered complete.

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

Trading basics

Shadow rate

The shadow rate is an interest rate in some financial models. It is used to measure the economy when nominal interest rates come close to the zero lower bound. It was created by Fischer Black in his final paper, "Interest Rates as Options".

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 (finance)

A share (sometimes referred to as stock or equity) is a unit of equity ownership in the capital stock of a corporation. It can refer to units of mutual funds, limited partnerships, and real estate investment trusts. Share capital refers to all of the shares of an enterprise. The owner of shares in a company is a shareholder (or stockholder) of the corporation. A share expresses the owner

Securities & exchanges

Share class

In finance, a share class or share classification are different types of shares in company share capital that have different levels of voting rights. For example, a company might create two classes of shares class A share and a class B share where the class A shares have fewer rights than class B shareholders. This may be done to maintain control of a company by a group of shareholders o

Securities & exchanges

Share price

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

Banking

Shared Interest

Shared Interest Society Limited is a fair trade financial co-operative based in the United Kingdom formed in 1990. Today it provides credit and financial services to fair trade producers, retailers, importers and exporters throughout the world. Shared Interest works with both Fairtrade International (formerly known as Fairtrade Labelling Organizations or FLO) and the World Fair Trade Org

Securities & exchanges

Shareholder benefit

A shareholder benefit (株主優待, kabunushi yūtai) is an incentive system offered by a joint-stock company to its shareholders who own a certain number of stocks on the date of right allotment (vesting).

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

Trading basics

Shell money

Shell money is a medium of exchange similar to coin money and other forms of commodity money, and was once commonly used in many parts of the world. Shell money usually consisted of whole or partial sea shells, often worked into beads or otherwise shaped. The use of shells in trade began as direct commodity exchange, the shells having use-value as body ornamentation. The distinction betw

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.

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

Slave insurance in the United States

Slave insurance in the United States became an increasingly significant industry after the Act Prohibiting Importation of Slaves, a federal law which took effect in 1808, prevented any new slaves from being imported to the U.S. Existing slaves, especially skilled workers, therefore became more valuable, and were often rented out to businesses; slave owners insured against the death or lo

Assets

Smart contract

A smart contract is a computer program or a transaction protocol that is intended to automatically execute, control or document events and actions according to the terms of a contract or an agreement. The objectives of smart contracts are the reduction of need for trusted intermediators, arbitration costs, and fraud losses, as well as the reduction of malicious and accidental exceptions.

Payments & settlement

SMS banking

SMS banking is a form of mobile banking. It is a facility used by some banks or other financial institutions to send messages (also called notifications or alerts) to customers' mobile phones using SMS messaging, or a service provided by them which enables customers to perform some financial transactions using SMS.

Trading basics

Social capital

Social capital is a concept used in sociology and economics to define networks of relationships which are productive towards advancing the goals of individuals and groups.

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 intelligence

Social marketing intelligence is the method of extrapolating valuable information from social network interactions and data flows that can enable companies to launch new products and services into the market at greater speed and lower cost. This is an area of research however, companies using social marketing intelligence have achieved significant improvement in marketing campaigns.

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

Trading basics

Social pension

According to the International Labour Organization, social security is a human right that aims at reducing and preventing poverty and vulnerability throughout the life cycle of individuals. Social security includes different kinds of benefits (maternity, unemployment, disability, sickness, old age, etc.) A social pension is a stream of payments from the state to an individual that starts

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.

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

Sovereign funds of China

Sovereign funds of China are mechanisms through which the Chinese state acts as a market participant with the goals of supporting key domestic economic sectors, advancing strategic interests internationally, and diversifying its foreign exchange reserves.

Trading basics

Special-purpose acquisition company

A special-purpose acquisition company (SPAC; ), also known as a blank check company or a blind-pool stock offering, is a shell corporation listed on a stock exchange with the purpose of acquiring (or merging with) a private company, thus taking the private company public through a procedure which requires fewer regulatory filings and has fewer safeguards for investors than the initial pu

Finance

Speculative attack

In economics, a speculative attack is a precipitous selling of untrustworthy assets by previously inactive speculators and the corresponding acquisition of some valuable assets (currencies, gold). The first model of a speculative attack was contained in a 1975 discussion paper on the gold market by Stephen Salant and Dale Henderson at the Federal Reserve Board. Paul Krugman, who visited

Payments & settlement

Speedpass

Speedpass was a keychain radio-frequency identification (RFID) device introduced in 1997 by Mobil (which merged with Exxon to become ExxonMobil in 1999) for electronic payment. It was originally developed by Verifone. By 2004, more than seven million people possessed Speedpass tags, which could be used at approximately 10,000 Exxon, Mobil and Esso gas stations worldwide.

Fiat currencies

Spot market

The spot market or cash market is a public financial market in which financial instruments or commodities are traded for immediate delivery. It contrasts with a futures market, in which delivery is due at a later date. In a spot market, settlement normally happens in T+2 working days, i.e., delivery of cash and commodity must be done after two working days of the trade date. A spot mar

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.

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.

Finance

Statistical finance

Statistical finance is the application of econophysics to financial markets. Instead of the normative roots of finance, it uses a positivist framework. It includes exemplars from statistical physics with an emphasis on emergent or collective properties of financial markets. Empirically observed stylized facts are the starting point for this approach to understanding financial markets.

Securities & exchanges

Stock certificate

In corporate law, a stock certificate (also known as certificate of stock or share certificate) is a legal document that certifies the legal interest (a bundle of several legal rights) of ownership of a specific number of shares (or, under Article 8 of the Uniform Commercial Code in the United States, a securities entitlement or pro rata share of a fungible bulk) or stock in a corporatio

Finance

Stock market

A stock market, equity market, or share market is the aggregation of buyers and sellers of stocks (also called as shares), which represent ownership claims on businesses; these may include securities listed on a public stock exchange as well as stock that is only traded privately, such as shares of private companies that are sold to investors through equity crowdfunding platforms. Invest

Securities & exchanges

Stock market prediction

Stock market prediction is the act of trying to determine the future value of a company stock or other financial instrument traded on an exchange. The successful prediction of a stock's future price could yield significant profit. The efficient market hypothesis suggests that stock prices reflect all currently available information and any price changes that are not based on newly reveal

Trading basics

Stock market simulator

A stock market simulator is computer software that reproduces behavior and features of a stock market, so that a user may practice trading stocks without financial risk. Paper trading, sometimes also called "virtual stock trading", is a simulated trading process in which would-be investors can practice investing without committing money.

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

Strategic financial management

Strategic financial management is the study of finance with a long term view considering the strategic goals of the enterprise. Financial management is sometimes referred to as "Strategic Financial Management" to give it an increased frame of reference.

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

Securities & exchanges

Street name securities

The phrase street name securities or "nominee name securities" is used in the United States to refer to securities of companies which are held electronically in the account of a stockbroker or bank or custodian, similar to a bank account. The entity whose name is recorded as the legal owner of the securities is known as the "nominee owner," and that entity has ownership rights in the sec

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

Strike price

In finance, the strike price (or exercise price) of an option is a fixed price at which the owner of the option can buy (in the case of a call), or sell (in the case of a put), the underlying security or commodity. The strike price may be set by reference to the spot price, which is the market price of the underlying security or commodity on the day an option is taken out. Alternatively,

Trading basics

Student Initiative Rahel

The Student Initiative Rahel (German: Rahel-Bildungsprojekt) was a project of the Institute for World Church and Mission (IWM, German: Institut für Weltkirche und Mission), which is part of the Sankt Georgen Graduate School of Philosophy and Theology in Frankfurt-Sachsenhausen. The nonprofit project started in 2010 and collected money until 2017, financing scholarships for disadvantaged

Finance

Student loan

A student loan is a type of loan designed to help students pay for tertiary education and the associated fees, such as tuition, books and supplies, and living expenses. It may differ from other types of loans in the fact that the interest rate may be substantially lower and the repayment schedule may be deferred while the student is still in school. It also differs in many countries in t

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.

Banking

Sukuk

Sukuk (Arabic: صكوك, romanized: ṣukūk; plural of Arabic: صك, romanized: ṣakk, lit. 'legal instrument, deed, cheque') is the Arabic name for financial certificates, also commonly referred to as "sharia compliant" bonds.

Payments & settlement

SumUp

SumUp is a British financial technology company headquartered in London. SumUp’s primary product is an EMV card reader and a number of online payment and bank account system for merchants and businesses.

Trading basics

SunPass

SunPass is an electronic toll collection system within the state of Florida, United States. It was created in 1999 by the Florida Department of Transportation's (FDOT's) Office of Toll Operations, which operates as a division of Florida's Turnpike Enterprise (FTE). The system utilizes windshield-mounted RFID transponders manufactured by TransCore and lane equipment designed by companies

Payments & settlement

Swish (payment)

Swish (Swedish pronunciation: [swɪʂː] or [svɪʂː]) is a mobile payment system in Sweden. The service was launched in 2012 by six large Swedish banks, in cooperation with Bankgirot and the Central Bank of Sweden. It had 8 million users as of July 2022 (total Swedish population: 10.2 million).

Finance

Swiss Finance Institute

The Swiss Finance Institute (SFI) is an institute organized as a non-profit foundation. Its purpose is to competitively foster university institutions and networks in research and teaching, aimed at strengthening the position of Switzerland's science and financial sectors. Created in 2006 as a public–private partnership, SFI is a common initiative of the Swiss finance industry, leading S

Finance

Syndicated loan

A syndicated loan is one that is provided by a group of lenders and is structured, arranged, and administered by one or several commercial banks or investment banks known as lead arrangers.

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

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

Trading basics

Talking ATM

A Talking ATM is a type of automated teller machine (ATM) that provides audible instructions so that persons who cannot read an ATM screen can independently use the machine. All audible information is delivered privately through a standard headphone jack on the face of the machine or a separately attached telephone handset. Information is delivered to the customer either through pre-reco

Finance

Tangerine Bank

Tangerine Bank (operating as Tangerine) is a Canadian direct bank that is a subsidiary of Scotiabank. It offers no-fee chequing and savings accounts, guaranteed investment certificates (GICs), mortgages and mutual funds (through a subsidiary). Many savings and investment products are eligible for registration under a tax-free savings account (TFSA), registered retirement savings plan (RR

Banking

TARGET2-Securities

TARGET2-Securities, in shorthand T2S, is the Eurosystem's platform for securities settlement in central bank money. T2S offers centralised delivery-versus-payment (DvP) settlement across several European securities markets, without being itself a central securities depository (CSD) since it does not offer CSD services such as custody or asset servicing.

Trading basics

Tax law

Tax law or revenue law is an area of legal study in which public or sanctioned authorities, such as federal, state and municipal governments (as in the case of the US) use a body of rules and procedures (laws) to assess and collect taxes in a legal context. The rates and merits of the various taxes, imposed by the authorities, are attained via the political process inherent in these bodi

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

Payments & settlement

Telephone card

A telephone card (also telecard, teleca, calling card or phone card for short) is a credit card-size plastic or paper card used to pay for telephone services (often international or long-distance calling). It is not necessary to have the physical card except with a stored-value system; knowledge of the access telephone number to dial and the PIN is sufficient. Standard cards which can be

Trading basics

TFI Leap Card

The TFI Leap Card is a contactless smart card for automated fare collection overseen by the National Transport Authority (NTA) under the Transport for Ireland (TFI) brand.

Finance

The Security Printing Corporation (Bangladesh) Ltd.

The Security Printing Corporation (Bangladesh) Ltd. (SPCBL; Bengali: দি সিকিউরিটি প্রিন্টিং কর্পোরেশন (বাংলাদেশ) লিমিটেড) is the main printer of banknotes and government postal stamps in Bangladesh.

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

Payments & settlement

Ticketing and Reservation System

Ticketing and Reservation System (TRS, 铁路客票发售和预订系统) is software used for rail ticketing in China Railways. It was developed by the China Academy of Railway Sciences. The first release was in 1996. As of December 2009, the version in use was version 5.2. It was named SMART before (excluding) version 4.0. It runs on Microsoft Windows.

Banking

Time deposit

A time deposit or term deposit (also known as a certificate of deposit in the United States, and as a guaranteed investment certificate in Canada) is a deposit in a financial institution with a specific maturity date or a period to maturity, commonly referred to as its "term". Time deposits differ from at call deposits, such as savings or checking accounts, which can be withdrawn at any

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.

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

Finance

Totten trust

A Totten trust (also referred to as a "Payable on Death" account) is a form of trust in the United States in which one party (the settlor or "grantor" of the trust) places money in a bank account or security with instructions that upon the settlor's death, whatever is in that account will pass to a named beneficiary. For example, a Totten trust arises when a bank account is titled in the

Trading basics

Touch 'n Go

Touch 'n Go is a contactless smart card system used for electronic payments in Malaysia. The system was introduced in 1997 and is widely used for toll payments on highways, public transportation, parking, and other services. The card is equipped with a radio-frequency identification (RFID) chip that allows users to make payments by simply tapping the card on a reader device. Touch 'n Go

Trading basics

Toy library

A toy library is a type of library that lends or hires out toys, puzzles, and games. They can function as either as a rental shop, part of a public library, or family resource program. Some toy libraries offer play sessions for families. Toy libraries are internationally federated by the International Toy Library Association (ITLA).

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

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.

Securities & exchanges

Tranche

In structured finance, a tranche (French pronunciation: [tʁɑ̃ʃ]) is one of a number of related securities offered as part of the same transaction. In the financial sense of the word, each bond is a different slice of the deal's risk. Transaction documentation (see indenture) usually defines the tranches as different "classes" of notes, each identified by letter (e.g., the Class A, Class

Banking

Transaction authentication number

A transaction authentication number (TAN) is used by some online banking services as a form of single use one-time passwords (OTPs) to authorize financial transactions. TANs are a second layer of security above and beyond the traditional single-password authentication.

Networks

Transient-key cryptography

Transient-key cryptography is a form of public-key cryptography wherein keypairs are generated and assigned to brief intervals of time instead of to individuals or organizations, and the blocks of cryptographic data are chained through time. In a transient-key system, private keys are used briefly and then destroyed, which is why it is sometimes nicknamed “disposable crypto.” Data encryp

Finance

Treasury management

Treasury management (or treasury operations) entails management of an enterprise's financial holdings, focusing on the firm's liquidity, and mitigating its financial, operational and reputational risk.

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

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.

Networks

TRON Network and TRC20

TRON is a blockchain network supporting accounts, transactions, and smart contracts. TRX is its native asset, and TRC20 is a common contract token standard. This article introduces its positioning, mechanisms, verification steps, and common misconceptions.

Trading basics

Trondheim toll scheme

Trondheim Toll Scheme or Trondheim Package (Norwegian: Trondheimspakken) was the result of that in the 1980s politicians and road authorities in Trondheim Municipality, Norway wanted to accelerate the investments in roads and motorways around the city through an investment package and toll scheme to ease construction and generate more funds. Between 1991 and 2005, there were more than 24

Finance

Trust company

A trust company is a corporation that acts as a fiduciary, trustee or agent of trusts and agencies. A professional trust company may be independently owned or owned by, for example, a bank or a law firm, and which specializes in being a trustee of various kinds of trusts.

Trading basics

Trusted Shops

Trusted Shops is a company founded in Cologne, Germany, in 1999, which offers online shops and their customers trust-building services by means of a trustmark, a money-back guarantee process and a system of customer reviews. Online retailers are also provided with assistance in meeting legal requirements. Around 25,000 online shops display the trustmark as of July 2019.

Assets

TRX: The Native Asset of TRON

TRX is the native asset of the TRON network, also known as TRONIX. This article covers its positioning, mechanisms, verification checklist, and common misconceptions.

Finance

Turbo warrant

A turbo warrant (or callable bull/bear contract) is a kind of stock option. Specifically, it is a barrier option of the down and out type. It is similar to a vanilla contract, but with two additional features: It has a low vega, meaning that the option price is much less affected by the implied volatility of the stock market, and it is highly geared due to the possibility of knockout. Th

Trading basics

Turnstile

A turnstile (also called a gateline, baffle gate, automated gate, turn gate in some regions) is a form of gate which allows one person to pass at a time. A turnstile can be configured to enforce one-way human traffic. In addition, a turnstile can restrict passage only to people who insert a coin, ticket, transit pass, security credential, or other method of payment or verification. Mode

Finance

Tuttle Twins

Tuttle Twins is an American educational animated series distributed by Angel Studios and produced by Tuttle Twins Show LLC, based on the book series of the same name by Connor Boyack. First released on June 30, 2021, the series follows twin siblings Ethan and Emily Tuttle, who travel through space and time with their grandmother Gabby to meet historical figures and learn lessons about to

Trading basics

Ubiquitous commerce

Ubiquitous Commerce also known as U-Commerce, u commerce or uCommerce (not 'U.Commerce'), refers to a variety of goods and/or services. Sometimes, it is used to refer to the wireless, continuous communication and exchange of data and information between and among retailers, customers, and systems (e.g., applications) regardless of location, devices used, or time of day.

Securities & exchanges

UNIDROIT

UNIDROIT (formally, the International Institute for the Unification of Private Law; French: Institut international pour l'unification du droit privé) is an intergovernmental organization whose objective is to harmonize private international law across countries through uniform rules, international conventions, and the production of model laws, sets of principles, guides and guidelines. E

Trading basics

Unsecured debt

In finance, unsecured debt refers to any type of debt or general obligation that is not protected by a guarantor, or collateralized by a lien on specific assets of the borrower in the case of a bankruptcy or liquidation or failure to meet the terms for repayment. Unsecured debts are sometimes called signature debt or personal loans. These differ from secured debt such as a mortgage, whic

Fiat currencies

USD: Difference Between Fiat Currency and On-Chain Assets

The international currency code for the US dollar is USD. This article covers its definition, mechanisms, verification methods, and common misconceptions.

Stablecoins

USD1: Brand, Token, and Reserve Information

USD1 is a US dollar stablecoin associated with the World Liberty Financial brand. This article introduces its positioning, mechanism, verification checklist, and common misconceptions.

Stablecoins

USDC: Native Issuance and Bridged Versions

USDC is a US dollar-backed stablecoin issued by Circle. This article introduces its positioning, mechanism, usage checklist, and common misconceptions.

Stablecoins

USDe: Ethena Synthetic Dollar

USDe is the synthetic dollar asset of the Ethena protocol. This article covers its positioning, mechanism, usage checklist, and common misconceptions.

Stablecoins

USDS: Sky Protocol Stablecoin

USDS is the stablecoin of the Sky protocol and is closely related to the evolution of DAI. This article covers its positioning, mechanism, usage checklist, and common misconceptions.

Stablecoins

USDT: Tether and Network Selection

USDT is a US dollar-denominated stablecoin issued by Tether, designed to maintain a close value relationship with the US dollar. This article introduces its positioning, mechanism, verification checklist, and common misconceptions.

Finance

Valuation risk

Valuation risk is the risk that an entity suffers a loss when trading an asset or a liability due to a difference between the accounting value and the price effectively obtained in the trade.

Trading basics

Value at risk

Value at risk (VaR) is a measure of the risk of loss of investment/capital. It estimates how much a set of investments might lose (with a given probability), given normal market conditions, in a set time period such as a day. VaR is typically used by firms and regulators in the financial industry to gauge the amount of assets needed to cover possible losses.