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Digital assets and currencies
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Payment
A payment is the tender of something of value, such as money or its equivalent, by one party (such as a person or company) to another in exchange for goods or services provided by them, or to fulfill a legal obligation or philanthropy desire. The party making the payment is commonly called the payer, while the payee is the party receiving the payment. Whilst payments are often made volun
Securities & exchangesPepperstone
Pepperstone is an Australian forex and CFD broker that provides trading services in forex, shares, commodities and other asset classes across multiple jurisdictions. The company was founded in 2010 in Melbourne, Australia, by Owen Kerr and Joe Davenport. The group operates internationally through regulated entities in jurisdictions including the UK, Germany, Cyprus, Kenya, Bahamas, and t
Trading basicsPerformance indicator
A performance indicator or key performance indicator (KPI) is a type of performance measurement used to evaluate the success of an organization, activity, project, or process in achieving defined objectives. KPIs provide a focus for strategic and operational improvement, support evidence-based decision-making, and help organizations identify and monitor factors critical to performance.
FinancePortugal's list of tax havens
Under Ministerial Order n. 150/2004 of 13 February, issued by the Portuguese Ministry of Finance and consequently updated, Portugal defines an official blacklist of countries and jurisdictions considered for legal and tax purposes as tax havens.
BankingPredatory lending
Predatory lending refers to unethical practices conducted by lending organizations during a loan origination process that are unfair, deceptive, or fraudulent. While there are no internationally agreed legal definitions for predatory lending, a 2006 audit report from the office of inspector general of the US Federal Deposit Insurance Corporation (FDIC) broadly defines predatory lending a
BankingPrivate credit
Private credit is an aspect of the shadow banking system involving assets defined by non-bank lending where the debt is not issued or traded on the public markets. "Private credit" can also be referred to as "direct lending" or "private lending". It is a subset of "alternative credit". Estimations of the global private credit industry's size vary; as of April 2024, the International Mone
BankingPublix
Publix Super Markets, Inc., doing business as Publix, is an employee-owned American supermarket chain headquartered in Lakeland, Florida. Founded in 1930 by George W. Jenkins, Publix is a private corporation that is wholly owned by present and past employees and members of the Jenkins family. Publix operates throughout the Southeastern United States, with locations in Florida (897), Geor
Trading basicsPut–call parity
In financial mathematics, the put–call parity defines a relationship between the price of a European call option and European put option, both with the identical strike price and expiry, namely that a portfolio of a long call option and a short put option is equivalent to (and hence has the same value as) a single forward contract at this strike price and expiry. This is because if the p
Trading basicsQuadriga (cryptocurrency exchange)
Quadriga Fintech Solutions was the owner and operator of QuadrigaCX. QuadrigaCX was believed to be Canada's largest cryptocurrency exchange at the time of its collapse in 2019, with the exchange ceasing operations and the company filing for bankruptcy with C$215.7 million in liabilities and about C$28 million in assets.
FinanceQuality investing
Quality investing is an investment strategy based on a set of clearly defined fundamental criteria that seeks to identify companies with outstanding quality characteristics. The quality assessment is made based on soft (e.g. management credibility) and hard criteria (e.g. balance sheet stability). Quality investing supports best overall rather than best-in-class approach.
Trading basicsRain (cryptocurrency exchange)
Rain is a Middle Eastern cryptocurrency exchange company that operates through its holding company, Rain Financial Inc., which oversees Rain Management W.L.L. in Bahrain,
Trading basicsRejsekort
Rejsekort (Official translation: Travel card) is an electronic ticket system for public transport in Denmark. The system is a collaborative work between DSB, HUR, Ørestadsselskabet, and various regional bus companies, and work on it started on August 18, 2003. In June 2005, Thales Group and Accenture were chosen as suppliers.
Trading basicsRevolut
Revolut Group Holdings Ltd, known as Revolut, is a British multinational neobank and financial technology company headquartered in London, England. It was founded in July 2015 by Nik Storonsky and Vlad Yatsenko. The company offers free and subscription‑based digital banking services, primarily through a mobile app.
FinanceRisk parity
Risk parity (or risk premia parity) is an approach to investment management which focuses on allocation of risk, usually defined as volatility, rather than allocation of capital. The risk parity approach asserts that when asset allocations are adjusted (leveraged or deleveraged) to the same risk level, the risk parity portfolio can achieve a higher Sharpe ratio and can be more resistant
FinanceRisk-seeking
In economics, finance, and psychology, risk-seeking (also called risk-loving or risk preference) refers to a behavioral tendency to prefer uncertain options with potentially higher rewards over safer alternatives with lower expected value. Risk-seeking individuals derive greater satisfaction or perceived utility from taking chances, even when the probable outcome may be less favorable. W
FinanceRotating savings and credit association
A rotating savings and credit association (ROSCA) is a group of individuals who agree to meet for a defined period in order to save and borrow together, a form of combined peer-to-peer banking and peer-to-peer lending. Members all chip in regularly and take turns withdrawing accumulated sums.
Trading basicsSaudi riyal
The Saudi riyal (symbol: ; code: SAR) is the currency of Saudi Arabia. Each riyal, the base unit, is subdivided into 100 halala (Arabic: هللة Halalah).
BankingShaba Number
Sheba (Persian: شناسه حساب بانکی ایران (شبا)) is a national standard defined in the framework of the global IBAN standard with the aim of integrating bank accounts in Iran. Shaba starts with "IR" followed by 24 other digits.
AssetsShapeShift
ShapeShift AG was a cryptocurrency exchange which operated from 2014 to 2021 and was headquartered in Switzerland.
BankingShared 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
FinanceSharpe 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
Fiat currenciesSpecial drawing rights
Special drawing rights (SDRs, code XDR) are a supplementary foreign exchange reserve asset defined and maintained by the International Monetary Fund (IMF). SDRs are the units of account for the IMF, and not a currency; rather, SDR value is based on a basket of currencies, the specific composition of which is reviewed every five years. SDRs represent a claim to currency held by IMF member
Payments & settlementSpeedpass
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.
Securities & exchangesSpread option
In finance, a spread option is a type of option where the payoff is based on the difference in price between two underlying assets. For example, the two assets could be crude oil and heating oil; trading such an option might be of interest to oil refineries, whose profits are a function of the difference between these two prices. Spread options are generally traded over the counter, rath
FinanceStochastic volatility jump models
Stochastic Volatility Jump Models (SVJ models) are a class of mathematical models in quantitative finance that combine stochastic volatility dynamics with discontinuous jumps in asset prices. These models aim to more accurately reflect the empirical characteristics of financial markets, particularly those that deviate from the assumptions of classical models such as the Black–Scholes mod
Payments & settlementSumUp
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.
FinanceSystemic 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
StablecoinsTether (cryptocurrency)
Tether is a stablecoin—a digital currency whose value aims to maintain a stable value relative to the United States dollar—launched by Tether Limited in 2014. It is represented by its currency codes USD₮ and USDT.
AssetsTether Limited
Tether Limited is a financial technology company that issues the Tether stablecoin (USDT), the world’s largest stablecoin by market capitalization. Founded in 2014, Tether pioneered the concept of fiat-backed digital currencies pegged 1:1 to traditional currencies (initially the U.S. dollar). USDT has become a key source of liquidity in the cryptocurrency market, with over $170 billion i
AssetsThodex
Koineks Teknoloji A.Ş., known online as Thodex, was a Turkey-based cryptocurrency exchange founded by Faruk Fatih Özer.
FinanceTobin tax
A Tobin tax was originally defined as a tax on all spot conversions of one currency into another. It was suggested by James Tobin, an economist who won the Nobel Memorial Prize in Economic Sciences. Tobin's tax was originally intended to penalize short-term financial round-trip excursions into another currency. By the late 1990s, the term Tobin tax was being applied to all forms of shor
Securities & exchangesTracking 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
FinanceTrade 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
Trading basicsTradeStation
TradeStation Group, Inc. is the parent company of online securities and futures brokerage firms and trading technology companies. It is headquartered in Plantation, Florida, and has offices in New York; Chicago; Richardson, Texas; London; Sydney; and Costa Rica. TradeStation is best known for the technical analysis software and electronic trading platform it provides to active traders an
FinanceTrading strategy
In finance, a trading strategy is a fixed plan that is designed to achieve a profitable return by going long or short in markets.
Securities & exchangesTranche
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
FinanceU.S. Strategic Bitcoin Reserve
The Strategic Bitcoin Reserve is a proposed reserve asset, funded by the United States Department of the Treasury's forfeited bitcoin, announced by United States president Donald Trump in March 2025. The creation of the United States Digital Asset Stockpile for non-bitcoin assets was also announced. Trump has previously stated that he wants the United States to become the "crypto capita
Trading basicsUkash
Ukash was a UK-based electronic money system that allowed users to exchange their cash for a secure code to make payments online. It was acquired by Skrill Group in April 2014 and merged into Austrian competitor paysafecard, acquired by Skrill a year earlier. All existing vouchers expired after 31 October 2015. Remaining ones could be exchanged into paysafecard PINs, in May 2016 paysafec
Trading basicsUnsecured 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
AssetsUpbit
Upbit is a South Korean cryptocurrency exchange founded in 2017. It is operated by Dunamu, which is one of the highest-valued startups in South Korea.
Securities & exchangesWarren Buffett
Warren Edward Buffett ( BUFF-it; born August 30, 1930) is an American investor and philanthropist who is the chairman emeritus and former CEO of the conglomerate Berkshire Hathaway. As a result of his success, Buffett is one of the best-known investors in the world. According to Forbes, as of January 2026, Buffett's estimated net worth stood at US$148.9 billion, making him the ninth-rich
Trading basicsWinCapita
WinCapita, previously WinClub and GiiClub, was a Finnish Internet-based Ponzi scheme that advertised itself as a private investment club engaged in currency trading. In reality, it was a bucket shop like many other foreign exchange fraud schemes. It operated mainly in Finland, with a smaller number of members also in Sweden. The operation collected about 100 million euros from more than
Trading basicsWincor Nixdorf
Wincor Nixdorf was a German corporation that provided retail and retail banking hardware, software, and services. Wincor Nixdorf was engaged primarily in the sale, manufacture, installation and service of self-service transaction systems (such as ATMs), retail banking equipment, lottery terminals, postal terminals, software and services for global financial and commercial markets.
AssetsZondacrypto
Zondacrypto (formerly BitBay) was a European cryptocurrency exchange. Originally founded in Poland in 2014 by Sylwester Suszek, it grew to become one of the largest digital asset trading platforms in Central and Eastern Europe. Suszek disappeared in March 2022, and the site went offline in April 2026, leaving client assets stranded.