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Digital assets and currencies

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

Securities & exchanges

Alte Handelsbörse

The Alte Handelsbörse or Alte Börse (Old exchange) in Leipzig, Saxony, Germany, is the city's oldest assembly building of merchants, and also the oldest Baroque building. Built as the Börse in 1678, it is now used as an event venue and is known in English as the Old Stock Exchange.

Mining

Application-specific integrated circuit

An application-specific integrated circuit (ASIC ) is an integrated circuit (IC) chip customized for a particular use, rather than intended for general-purpose use, such as a chip designed to run in a digital voice recorder or a high-efficiency video codec. Application-specific standard product chips are intermediate between ASICs and industry standard integrated circuits like the 7400 s

Assets

Avalanche (blockchain platform)

Avalanche is a public blockchain and smart-contract platform launched in September 2020 by the American company Ava Labs. The platform's native cryptocurrency is AVAX.

Payments & settlement

Balance of payments

In international economics, the balance of payments (also known as balance of international payments and abbreviated BOP or BoP) of a country is the difference between all money flowing into the country in a particular period of time (e.g., a quarter or a year) and the outflow of money to the rest of the world. These financial transactions are made by individuals, firms and government b

Payments & settlement

Balance of trade

Balance of trade is the difference between the monetary value of a nation's exports and imports of goods over a certain time period. Sometimes, trade in services is also included in the balance of trade but the official IMF definition only considers goods. The balance of trade measures a flow variable of exports and imports over a given period of time. The notion of the balance of trade

Banking

Bank of Amsterdam

The Bank of Amsterdam or Wisselbank (Dutch: Amsterdamsche Wisselbank, lit. 'Exchange Bank of Amsterdam') was an early bank, vouched for by the city of Amsterdam, and established in 1609. It was the first public bank to offer accounts not directly convertible to coin. As such, it has been described by some as the first true central bank, even though that view is not uniformly shared. The

Banking

Bank of Korea Money Museum

Bank of Korea Money Museum (Korean: 한국은행 화폐박물관) is an economics and numismatics museum in Seoul, South korea. It was founded by the Bank of Korea in 2001.

Banking

Berenberg family

The Berenberg family (Dutch for "bear mountain") was a Flemish-origined Hanseatic family of merchants, bankers and senators in Hamburg, with branches in London, Livorno and other European cities. The family was descended from the brothers Hans and Paul Berenberg from Antwerp, who came as Protestant refugees to the city-republic of Hamburg following the Fall of Antwerp in 1585 and who est

Securities & exchanges

Boiler room (business)

In business, a boiler room is an outbound call center selling questionable investments by telephone. It usually refers to a room where salespeople work using unfair, dishonest sales tactics, sometimes selling penny stocks or private placements or committing outright stock fraud. A common boiler room tactic is the use of falsified and bolstered information in combination with verified com

Banking

Check kiting

Check kiting or cheque kiting (American and British English, respectively) is a form of bank check fraud, involving taking advantage of the float provided by a bank to make use of non-existent funds in a checking or other bank account. Thus, instead of being used as intended, as a negotiable instrument, checks are misused to source (and manage the flow and timing of) a form of unauthoriz

Banking

Cheque fraud

Cheque fraud (Commonwealth English) or check fraud (American English) is a category of criminal acts that involve the unlawful use of cheques to illegally acquire or (effectively) to borrow funds that do not exist within an account balance or account-holder's legal ownership. Most methods involve taking advantage of the float (the money made available by a bank for a time between the pre

Trading basics

Comorian franc

The franc (French: franc comorien; Arabic: فرنك قمري; sign: FC; ISO 4217 code: KMF) is the official currency of Comoros. It is nominally subdivided into 100 centimes, although no centime denominations have ever been issued.

Finance

Conduit and sink OFCs

Conduit OFC and sink OFC is an empirical quantitative method of classifying corporate tax havens, offshore financial centres (OFCs) and tax havens.

Trading basics

Convertible bond

In finance, a convertible bond, convertible note, or convertible (or a convertible debenture if it has a maturity of greater than 10 years) is a type of bond that the holder can convert into a specified number of shares of common stock in the issuing company or cash of equal value. It is a hybrid security with debt- and equity-like features. It originated in the mid-19th century, and w

Trading basics

Corn Exchange, London

The Corn Exchange was a commercial building in Mark Lane, London, England. The original structure dated from 1747, but the exchange later amalgamated with a rival exchange and was rebuilt several times before finally closing in 1987.

Finance

Cornering the market

In competition law, cornering the market consists of obtaining sufficient control of a particular stock, commodity, human capital or other asset in an attempt to reduce competition.

Payments & settlement

Current account (balance of payments)

In macroeconomics and international finance, a country's current account records the value of exports and imports of both goods and services and international transfers of capital. It is one of the two components of the balance of payments, the other being the capital account (also known as the financial account). Current account measures the nation's earnings and spendings abroad and it

Banking

Dinar

The dinar (, ) is the name of the principal currency unit in several countries near the Mediterranean Sea, with a more widespread historical use. The English word "dinar" is the transliteration of the Arabic دينار (dīnār), which was possibly borrowed via the Syriac dīnarā from the Latin dēnārius.

Banking

Discount window

The discount window is an instrument of monetary policy (usually controlled by central banks) that allows eligible institutions to borrow money from the central bank, usually on a short-term basis, to meet temporary shortages of liquidity caused by internal or external disruptions.

Finance

Durbin amendment

The Durbin amendment, implemented by Regulation II, is a provision of United States federal law, 15 U.S.C. § 1693o-2, that requires the Federal Reserve to limit fees charged to retailers for debit card processing. It was passed as part of the Dodd–Frank financial reform legislation in 2010, as a last-minute addition by Dick Durbin, a senator from Illinois, after whom the amendment is nam

Trading basics

Early history of private equity

The early history of private equity relates to one of the major periods in the history of private equity and venture capital. Within the broader private equity industry, two distinct sub-industries, leveraged buyouts and venture capital experienced growth along parallel although interrelated tracks.

Finance

Error account

An error account is a type of account used for storing compensation for errors in trading, a transaction that is not posted in a timely manner because of inconsistencies, such as an incorrect account or routing numbers to the wrong name on the account, producing a claim that needs to be resolved as soon as possible so payments can be made.

Securities & exchanges

Event-driven investing

Event-driven investing or Event-driven trading is a broad term encompassing hedge fund investment strategies that seeks to exploit pricing inefficiencies that may occur before or after an event. Examples of such events could be an earnings call, bankruptcy, merger, acquisition, or spinoff. In more recent times market practitioners have expanded this definition to include additional event

Assets

Exit scam

An exit scam or rug pull is a confidence trick or fraud, perpetrated under the guise of a legitimate business, that ends when the originator absconds with the funds contributed by participants. When a business entity pulls the rug and stops shipping orders while receiving payment for new orders, it could take some time before it is widely recognized that orders are not shipping. The enti

Banking

Federal funds rate

The federal funds rate is the interest rate at which depository institutions (banks and credit unions) lend reserve balances to other depository institutions overnight on an uncollateralized basis. Reserve balances are amounts held at the Federal Reserve. Institutions with surplus balances in their accounts lend those balances to institutions in need of larger balances. The federal funds

Finance

Financial Action Task Force blacklist

The Financial Action Task Force blacklist (often abbreviated to FATF blacklist, and officially known as the "Call for action") is a blacklist maintained by the Financial Action Task Force.

Finance

Financial astrology

Financial astrology (also known as business astrology, economic astrology, and/or astro-economics) is a pseudoscientific practice of relating the movements of celestial bodies to events in financial markets. The use of astrology in any context is not empirically based and its use in predicting financial markets is at plain odds with standard economic and financial theory.

Finance

Finite difference methods for option pricing

Finite difference methods for option pricing are numerical methods used in mathematical finance for the valuation of options. Finite difference methods were first applied to option pricing by Eduardo Schwartz in 1977.

Fiat currencies

Foreign exchange fraud

Foreign exchange fraud is any trading scheme used to defraud traders by convincing them that they can expect to gain a high profit by trading in the foreign exchange market. Currency trading became a common form of fraud in early 2008, according to Michael Dunn of the U.S. Commodity Futures Trading Commission.

Fiat currencies

Foreign exchange reserves

Foreign exchange reserves (also called forex reserves or FX reserves) are cash and other reserve assets such as gold and silver held by a central bank or other monetary authority that are primarily available to balance payments of the country, influence the foreign exchange rate of its currency, and to maintain confidence in financial markets. Reserves are held in one or more reserve cur

Payments & settlement

Four Corners Model for Payment Security

The Four Corners model, often referred to as the Four Party Scheme is the most used card scheme in card payment systems worldwide. This model was introduced in the 1990s. It is a user-friendly card payment system based on an interbank clearing system and economic model established on multilateral interchange fees (MIF) paid between banks or other payment institutions.

Trading basics

Grain trade

The grain trade refers to the local and international trade in cereals such as wheat, barley, maize, rice, and other food grains. Grain is an important trade item because it is easily stored and transported with limited spoilage, unlike other agricultural products. Healthy grain supply and trade is important to many societies, providing a caloric base for most food systems as well as imp

Securities & exchanges

Gympie Stock Exchange

Gympie Stock Exchange is a heritage-listed former bank building and former stock exchange at 236 Mary Street, Gympie, Gympie Region, Queensland, Australia. It was designed by Francis Drummond Greville Stanley and built from 1881 to 1882. It is also the former Australian Joint Stock Bank and the Neilson, Stanton and Parkinson Building. It was added to the Queensland Heritage Register on 1

Trading basics

Halle aux blés (Paris)

The Halle aux blés (Wheats Exchange or Grains Exchange) was a circular building in central Paris used by grain traders built in 1763–1767, with an open-air interior court that was capped by a wooden dome in 1783, then by an iron dome in 1811. In a major reconstruction in 1888–1889 much of the structure was replaced and the building became the Bourse de commerce.

Finance

Hazell v Hammersmith and Fulham LBC

Hazell v Hammersmith and Fulham LBC [1992] 2 AC 1 is an English administrative law case, which declared that local authorities had no power to engage in interest rate swap agreements because they were beyond the council's borrowing powers, and that all the contracts were void. Their actions were held to contravene the Local Government Act 1972.

Assets

Hedera (distributed ledger)

Hedera Hashgraph, commonly known as Hedera, is a distributed ledger which uses a variant of proof of stake to reach consensus. The native cryptocurrency of the Hedera Hashgraph system is HBAR.

Finance

History of the Federal Reserve System

The United States Federal Reserve System is the central banking system of the United States. It was created on December 23, 1913.

Finance

Ikoyi

Ikoyi is the most affluent island of Lagos, located in Eti-Osa Local Government Area. It lies to the northeast of Obalende and adjoins Lagos Island to the west, and at the edge of the Lagos Lagoon. Popular with the extreme upper class residents of Nigerian society, Ikoyi is arguably one of the wealthiest communities within Nigeria.

Finance

Incentive stock option

Incentive stock options (ISOs), are a type of employee stock option that can be granted only to employees and confer a U.S. tax benefit. ISOs are also sometimes referred to as statutory stock options by the IRS. ISOs have a strike price, which is the price a holder must pay to purchase one share of the stock. ISOs may be issued both by public companies and private companies, with ISOs be

Securities & exchanges

Israel Englander

Israel Alexander Englander (born September 30, 1948) is an American billionaire hedge fund manager. In 1989, he founded his hedge fund, Millennium Management, with Ronald Shear. The fund was started with US$35 million, and as of July 2026 had US$92 billion in assets under management.

Securities & exchanges

Joel Seligman

Joel Seligman (born January 11, 1950) is an American legal scholar and former academic administrator. He served as the 10th president of the University of Rochester, in Rochester, New York, from 2005 to 2018. Seligman is also one of the leading authorities on securities law in the United States. Seligman stepped down from his presidency in 2018 following his handling of a university-wide

Finance

Landmark Credit Union

Landmark Credit Union is an American credit union providing banking services in Wisconsin and Northern Illinois . It operates as a cooperative and is owned by its members. Landmark provides banking services including, savings accounts, checking accounts, mortgages and investments.

Finance

Lender option borrower option

Lender option borrower option or lender's option borrower's option (LOBO) is a long term borrowing instrument available in the United Kingdom. They involve periodic interest re-fixings, which incorporates two linked options:

Trading basics

Local government financing vehicle

In China, a local government financing vehicle (LGFV) (Chinese: 地方政府融资平台) is an investment company formed by local governments to raise funds, usually by borrowing money to finance real estate development and other local infrastructure projects. They allow local governments to finance infrastructure projects while complying with laws prohibiting them from issuing bonds or having deficits

Trading basics

London Metal Exchange

The London Metal Exchange (LME) is a futures and forwards exchange in London, United Kingdom with the world's largest market in standardised forward contracts, futures contracts and options on base metals. The exchange also offers contracts on ferrous metals and precious metals. The company also allows for cash trading. It offers hedging, worldwide reference pricing, and the option of ph

Trading basics

London Platinum and Palladium Market

The London Platinum and Palladium Market (LPPM) is an over-the-counter trading centre for platinum and palladium and a commodity trading association. London has always been a centre for the research in and development of most of the platinum group metals. Trade was established in the early 20th century, typically by existing dealers of gold and silver. The LPPM has been involved in fixin

Securities & exchanges

Mark Spitznagel

Mark Spitznagel (; born March 5, 1971) is an American investor and hedge fund manager. He is the founder, owner, and chief investment officer of Universa Investments, a hedge fund management firm based in Miami, Florida.

Securities & exchanges

Merchants' Exchange Building (Philadelphia)

The Merchants' Exchange Building (also known as the Philadelphia Exchange [1]) is a historic building which is located on the triangular site bounded by Dock, 3rd and Walnut Streets in the Old City neighborhood of Philadelphia, Pennsylvania. It was designed by architect William Strickland, in the Greek Revival style, the first national American architectural style and was built between

Finance

Ministry of Finance (El Salvador)

The Ministry of Finance (Spanish: Ministerio de Hacienda) of El Salvador is the government ministry of El Salvador in charge of directing the fiscal policy on public resources, so that it promotes stability and sustainability of public finances.

Finance

Ministry of Finance (Netherlands)

The Ministry of Finance (Dutch: Ministerie van Financiën; FIN) is the Dutch Ministry responsible for economic policy, monetary policy, fiscal policy, tax policy, incomes policy, financial regulation, the government budget and the financial market. The Ministry was created in 1798 as the Department of Finance of the Batavian Republic. It became the Ministry of Finance in 1876. The Ministe

Trading basics

Minneapolis Grain Exchange

The Minneapolis Grain Exchange (MGEX) is a commodities and futures exchange of grain products. It was formed in 1881 in Minneapolis, Minnesota, United States as a regional cash marketplace to promote fair trade and to prevent trade abuses in wheat, oats and corn. MGEX became a subsidiary of Miami International Holdings after the two companies merged in 2020.

Securities & exchanges

Mismarking

Mismarking in securities valuation takes place when the value that is assigned to securities does not reflect what the securities are actually worth, due to intentional fraudulent mispricing. Mismarking misleads investors and fund executives about how much the securities in a securities portfolio managed by a trader are worth (the securities' net asset value, or NAV), and thus misreprese

Banking

Murashu family

The house of Murashu were a family of businessmen and moneylenders based at Nippur in Babylonia in the fifth century BCE. They left an archive of hundreds of cuneiform texts called the Murashu Archive which is often used to understand business and society in the Achaemenid Empire.

Finance

Net capital outflow

Net capital outflow (NCO) is the net flow of funds being invested abroad by a country during a certain period of time (usually a year). A positive NCO means that the country invests outside more than the world invests in it. NCO is one of two major ways of characterizing the nature of a country's financial and economic interaction with the other parts of the world (the other being the ba

Trading basics

Outline of marketing

Marketing refers to the social and managerial processes by which products, services, and value are exchanged in order to fulfill individuals' or groups' needs and wants. These processes include, but are not limited to, advertising, promotion, distribution, and product management. The following outline provides an overview and topical guide to the subject:

Banking

Overnight rate

The overnight rate is generally the interest rate that large banks use to borrow and lend from one another in the overnight market. In some countries (the United States, for example), the overnight rate may be the rate targeted by the central bank to influence monetary policy. In most countries, the central bank is also a participant on the overnight lending market, and will lend or borr

Networks

Perfect (2018 film)

Perfect is a 2018 American science fiction thriller film directed by Eddie Alcazar in his feature length debut. The film stars Garrett Wareing as a young man who is sent to a clinic in hopes of relieving his mental troubles by altering his characteristics.

Securities & exchanges

Peter Thiel

Peter Andreas Thiel ( ; born 11 October 1967) is a German-American entrepreneur, venture capitalist, and conservative political activist. A co-founder of PayPal, Palantir Technologies and Founders Fund, he was also the first outside investor in Facebook. As of October 2026, Forbes estimated Thiel's net worth at US$37.7 billion.

Assets

Pig butchering scam

A pig-butchering scam or romance baiting scam is a form of online relationship and investment fraud in which perpetrators cultivate fake romantic or social relationships with victims before persuading them to invest money, often in fraudulent cryptocurrency schemes. Such scams are common on social media and dating apps, and often involve catfishing, investment fraud, and romance scams.

Finance

Profit margin

Profit margin is a financial ratio that measures the percentage of profit earned by a company in relation to its revenue. Expressed as a percentage, it indicates how much profit the company makes for every dollar of revenue generated. Profit margin is important because this percentage provides a comprehensive picture of the operating efficiency of a business or an industry. All margin ch

Banking

Prudential Regulation Authority

The Prudential Regulation Authority (PRA) is a United Kingdom financial services regulatory body, formed as one of the successors to the Financial Services Authority (FSA). The authority is responsible for the prudential regulation and supervision of banks, building societies, credit unions, insurers and major investment firms. It sets standards and supervises financial institutions at t

Finance

Pump and dump

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).

Securities & exchanges

Regulation S-K

Regulation S-K is a prescribed regulation under the US Securities Act of 1933 that lays out reporting requirements for various SEC filings used by public companies. Companies are also often called issuers (issuing or contemplating issuing shares), filers (entities that must file reports with the SEC) or registrants (entities that must register (usually shares) with the SEC).

Finance

Risk arbitrage

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.

Trading basics

Salik (road toll)

Salik (In Arabic: سالك meaning "clear and moving") is the name given to the electronic toll road system in Dubai, United Arab Emirates, which is based on RFID and ANPR technology, automatically deducting a fee when a vehicle passes under a toll gate. The Salik toll was launched by Dubai's Roads and Transport Authority (RTA) on 1 July 2007.

Trading basics

Solidity

Solidity is a programming language for implementing smart contracts on various blockchain platforms, most notably Ethereum. Solidity is licensed under GNU General Public License v3.0. Solidity was designed by Gavin Wood and developed by Christian Reitwiessner, Alex Beregszaszi, and several former Ethereum core contributors. Programs in Solidity run on Ethereum Virtual Machine or on compa

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

Networks

StarkWare Industries

StarkWare Industries is an Israeli software company that specializes in cryptography. It develops zero-knowledge proof technology that compresses information to address the scalability problem of the blockchain, and works on the Ethereum platform.

Fiat currencies

Taylor rule

The Taylor rule is a monetary policy targeting rule. The rule was proposed in 1992 by American economist John B. Taylor for central banks to use to stabilize economic activity by appropriately setting short-term interest rates. The rule considers the federal funds rate, the price level and changes in real income. The Taylor rule computes the optimal federal funds rate based on the gap be

Networks

Tezos

Tezos is an open-source blockchain that can execute peer-to-peer transactions and serve as a platform for deploying smart contracts. The native cryptocurrency for the Tezos blockchain is the tez (ISO 4217: XTZ; sign: ꜩ). The Tezos network achieves consensus using proof-of-stake. Tezos uses an on-chain governance model that enables the protocol to be amended when upgrade proposals receive

Securities & exchanges

The International Stock Exchange

The International Stock Exchange (TISE) is a stock exchange headquartered in St. Peter Port, Guernsey.

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

Unicorn (finance)

In business, a unicorn is a startup company valued at over US$1 billion which is privately owned and therefore its company shares are not publicly listed. The term was coined in 2013 by venture capitalist Aileen Lee, choosing the mythical animal to represent the statistical rarity of such successful ventures.

Securities & exchanges

Warren 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

Securities & exchanges

Watered stock

Watered stock is an asset with an artificially-inflated value. The term most commonly refers to a form of securities fraud in which a company issues stock to someone before receiving at least the par value in payment.

Networks

Web3

Web3 is an idea for a new iteration of the World Wide Web which incorporates concepts such as decentralization, blockchain technologies, tokenomics, and privacy-enhancing technologies. The term is sometimes confused with the Semantic Web, as both have sometimes been referred to as "Web 3.0". Some technologists and journalists have contrasted it with Web 2.0, in which they say user-genera

Assets

WhopperCoin

WhopperCoin was a cryptocurrency launched by the Russian branch of Burger King as a loyalty program in the summer of 2017. It was primarily notable for being the first issuance of branded cryptocurrency by a major company and the first form of loyalty points that could be traded freely; the BBC noted that Burger King was the "first major corporate brand to issue its own crypto-cash", wit

Trading basics

WinCapita

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