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Digital assets and currencies

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

Trading basics

Bid–ask spread

The bid–ask spread (also bid–offer or bid/ask and buy/sell in the case of a market maker) is the difference between the prices quoted (either by a single market maker or in a limit order book) for an immediate sale (ask) and an immediate purchase (bid) for stocks, futures contracts, options, or currency pairs in some auction scenario. The size of the bid–ask spread in a security is one m

Securities & exchanges

Binary option

A binary option is a financial exotic option in which the payoff is either some fixed monetary amount or nothing at all. The two main types of binary options are the cash-or-nothing binary option and the asset-or-nothing binary option. The former pays some fixed amount of cash if the option expires in-the-money while the latter pays the value of the underlying security. They are also cal

Trading basics

Capital market imperfections

Credit market imperfections (known academically as capital market imperfections) are limitations that reduce the range of financial contracts that can be signed or honored. There are three main theoretical drivers of imperfection: First, lenders do not have full information about the borrower, whether they have the capacity to pay back their debt and/or whether they are willing to pay (a

Finance

Central counterparty clearing

A central clearing counterparty (CCP), also referred to as a central counterparty, is a financial market infrastructure organization that takes on counterparty credit risk between parties to a transaction and provides clearing and settlement services for trades in foreign exchange, securities, options, and derivative contracts. CCPs are highly regulated institutions that specialize in ma

Networks

ChromaWay

ChromaWay is a Swedish blockchain technology company founded in 2014, involved in decentralized applications, relational blockchain technology, web3, and smart contracts.

Securities & exchanges

CME Group

CME Group Inc. (formerly Chicago Mercantile Exchange Holdings Inc.), headquartered in Chicago, Illinois, operates exchanges and provides clearing services for trading in financial derivatives such as futures contracts, options, and swaps. Its exchanges include the Chicago Mercantile Exchange (CME), the Chicago Board of Trade (CBOT), the New York Mercantile Exchange (NYMEX), and the Commo

Trading basics

Commodity broker

A commodity broker is a firm or an individual who executes orders to buy or sell commodity contracts on behalf of the clients and charges them a commission. A firm or individual who trades for his own account is called a trader. Commodity contracts include futures, options, and similar financial derivatives. Clients who trade commodity contracts are either hedgers using the derivatives m

Finance

Commodity market

A commodity market is a market that trades in the primary economic sector rather than manufactured products. The primary sector includes agricultural products, energy products, and metals. Soft commodities may be perishable and harvested, while hard commodities are usually mined, such as gold and oil. Futures contracts are the oldest way of investing in commodities. Commodity markets ca

Trading basics

Commodity trading advisor

A commodity trading advisor (CTA) is US financial regulatory term for an individual or organization who is retained by a fund or individual client to provide advice and services related to trading in futures contracts, commodity options and/or swaps. They are responsible for the trading within managed futures accounts. The definition of CTA may also apply to investment advisors for hedge

Finance

Contract for difference

In finance, a contract for difference (CFD) is a financial agreement between two parties, commonly referred to as the "buyer" and the "seller." The contract stipulates that the buyer will pay the seller the difference between the value of an asset at the time the contract was initiated and the current value of the asset. If the asset's price increases from the opening to the closing of t

Fiat currencies

Covered interest arbitrage

Covered interest arbitrage is an arbitrage trading strategy whereby an investor capitalizes on the interest rate differential between two countries by using a forward contract to cover (eliminate exposure to) exchange rate risk. Using forward contracts enables arbitrageurs such as individual investors or banks to make use of the forward premium (or discount) to earn a riskless profit fro

Assets

Cryptoeconomics

Cryptoeconomics is an evolving economic paradigm for a cross-disciplinary approach to the study of digital economies and decentralized finance (DeFi) applications. Cryptoeconomics integrates concepts and principles from traditional economics, cryptography, computer science, and game theory disciplines. Just as traditional economics provides a theoretical foundation for traditional finan

Networks

Decentralized application

A decentralised application (DApp, dApp, Dapp, or dapp) is an application that can operate autonomously, typically through the use of smart contracts, that run on a blockchain or other distributed ledger system. DApps provide a function or utility to their users with less human intervention. Control over some DApps is distributed over holders of tokens that represent ownership over a DAp

Assets

Decentralized finance

Decentralized finance (often stylized as DeFi) provides financial instruments and services through smart contracts on a programmable, permissionless blockchain. This approach reduces the need for intermediaries such as brokerages, exchanges, or banks. DeFi platforms enable users to lend or borrow funds, speculate on asset price movements using derivatives, trade cryptocurrencies, insure

Finance

Derivatives market

The derivatives market is the financial market for derivatives – financial instruments like futures contracts or options – which are derived from other forms of assets.

Finance

Diagonal spread

In derivatives trading, the term diagonal spread is applied to an options spread position that shares features of both a calendar spread and a vertical spread. It is established by simultaneously buying and selling equal amount of option contracts of the same type (call options or put options) but with different strike prices and expiration dates.

Securities & exchanges

Energy derivative

An energy derivative is a derivative contract based on (derived from) an underlying energy asset, such as natural gas, crude oil, or electricity. Energy derivatives are exotic derivatives and include exchange-traded contracts such as futures and options, and over-the-counter (i.e., privately negotiated) derivatives such as forwards, swaps and options. Major players in the energy derivati

Assets

Ethereum and ETH

Ethereum is a public blockchain that runs smart contracts, and ETH (Ether) is its native asset. This article introduces its positioning, mechanisms, verification guidelines, and common misconceptions.

Banking

Euro short-term rate

The Euro Short-Term Rate (€STR) is a reference rate for the euro. This interest rate can be used as the rate referenced in financial contracts that involve the euro. €STR is administered and calculated by the European Central Bank (ECB), based on the money market statistical reporting of the Eurosystem. According to the indications of the working group on euro risk-free rates, €STR repla

Securities & exchanges

European Market Infrastructure Regulation

The European Market Infrastructure Regulation (EMIR) is an EU regulation aimed at reducing systemic counterparty and operational risk and thereby preventing future financial system collapses. Its focus is regulation of over-the-counter (OTC) derivatives, central counterparties and trade repositories. It provides steer on reporting of derivative contracts, implementation of risk managemen

Trading basics

Exchange (organized market)

An exchange, bourse (), trading exchange or trading venue is an organized market where people can buy and sell financial instruments, such as tradable securities, commodities, foreign exchange and derivative contracts.

Assets

Financial cryptography

Financial cryptography is the use of cryptography in applications in which financial loss could result from subversion of the message system. Financial cryptography is distinguished from traditional cryptography in that for most of recorded history, cryptography has been used almost entirely for military and diplomatic purposes.

Finance

Financial services

Financial services are economic services tied to finance provided by financial institutions. Financial services encompass a broad range of service sector activities, especially as concerns financial management and consumer finance.

Finance

Fixed income arbitrage

Fixed-income arbitrage is a group of market-neutral-investment strategies that are designed to take advantage of differences in interest rates between varying fixed-income securities or contracts (Jefferson, 2007). Arbitrage in terms of investment strategy, involves buying securities on one market for immediate resale on another market in order to profit from a price discrepancy.

Finance

Food speculation

Food speculation refers to the buying and selling of futures contracts or other commodity derivatives by traders with the aim of profiting from changes in food prices. Food speculation can be both positive and negative for food producers and buyers. It is betting on food prices in financial markets.

Fiat currencies

Forward exchange rate

The forward exchange rate (also sometimes referred to as forward rate or forward price) is the exchange rate at which two counterparties (such as a bank and an investor) agree to exchange one currency for another at a future date when they enter into a forward contract. Multinational corporations, banks, and other financial institutions enter into forward contracts to take advantage of t

Securities & exchanges

Hedge (finance)

A hedge is an investment position intended to offset potential losses or gains that may be incurred by a companion investment. A hedge can be constructed from many types of financial instruments, including stocks, exchange-traded funds, insurance, forward contracts, swaps, options, gambles, many types of over-the-counter and derivative products, and futures contracts.

Trading basics

Hillary Clinton cattle futures controversy

In 1978 and 1979, lawyer and First Lady of Arkansas Hillary Rodham Clinton engaged in a series of trades of cattle futures contracts. Her initial $1,000 investment had generated nearly $100,000 (equivalent to $443,603.85 in 2025), when she stopped trading after ten months. In 1994, after Clinton had become First Lady of the United States, the trading became the subject of considerable co

Securities & exchanges

IFRS 4

IFRS 4 is an International Financial Reporting Standard (IFRS) issued by the International Accounting Standards Board (IASB) providing guidance for the accounting of insurance contracts. The standard was issued in March 2004, and was amended in 2005 to clarify that the standard covers most financial guarantee contracts. Paragraph 35 of IFRS also applies the standard to financial instru

Finance

Implicit contract theory

In economics, implicit contracts refer to voluntary and self-enforcing long term agreements made between two parties regarding the future exchange of goods or services. Implicit contracts theory was first developed to explain why there are quantity adjustments (layoffs) instead of price adjustments (falling wages) in the labor market during recessions.

Trading basics

Indenture

An indenture is a legal contract that reflects an agreement between two parties. Although the term is most familiarly used to refer to a labor contract between an employer and a laborer with an indentured servant status, historically indentures were used for a variety of contracts, including transfers and rents of land and even peace agreements between rulers.

Securities & exchanges

International Swaps and Derivatives Association

The International Swaps and Derivatives Association (ISDA ) is a trade organization of participants in the market for over-the-counter derivatives. It is headquartered in New York City.

Finance

Islamic finance products, services and contracts

Islamic finance products, services and contracts are financial products and services and related contracts that conform with Sharia (Islamic law). Islamic banking and finance has its own products and services that differ from conventional banking. These include Mudharabah (profit sharing), Wadiah (safekeeping), Musharakah (joint venture), Murabahah (cost plus finance), Ijar (leasing), Ha

Payments & settlement

JPay

JPay is a privately held information technology and financial services provider focused on serving the United States prison system. With headquarters in Miramar, Florida, the company contracts with state, county, and federal prisons and jails to provide technologies and services including money transfer, email, video visitation and parole and probation payments to approximately 1.5 mill

Finance

List of banking crises

This is a list of banking crises. A banking crisis is a financial crisis that affects banking activity. Banking crises include bank runs, which affect single banks; banking panics, which affect many banks; and systemic banking crises, in which a country experiences many defaults and financial institutions and corporations face great difficulties repaying contracts. A banking crisis is ma

Finance

List of futures exchanges

This is a list of notable futures exchanges. Those stock exchanges that also offer trading in futures contracts besides trading in securities are listed both here and the list of stock exchanges.

Securities & exchanges

List of securities examinations

The following is a list of securities examinations and the organizations that offer them.

Trading basics

LME Copper

LME Copper is a group of spot, forward, and futures contracts, trading on the London Metal Exchange (LME), for delivery of Copper (Grade A), which can be used for price Hedging, physical delivery of sales or purchases, investment, and speculation.

Trading basics

LME Nickel

LME Nickel refers to the spot, forward, and futures contracts, trading on the London Metal Exchange (LME) for primary nickel. These contracts are used for price hedging, physical delivery, investment, and speculation. Nickel futures contracts are used to hedge price risks and as a reference for prices. As of late 2024, LME nickel contracts were linked to approximately 230,000 tonnes of p

Trading basics

LME Zinc

LME Zinc is a group of spot, forward, and futures contracts traded on the London Metal Exchange (LME) for the delivery of zinc. The zinc, which is of 99.9% purity, can be used for pre-sale handling and physical delivery of sales or purchases, and investments. Producers, semi-fabricators, consumers, recyclers, and merchants can use zinc futures contracts to hedge zinc price risks and to r

Finance

Long (finance)

In finance, a long position in a financial instrument means the holder of the position owns a positive amount of the instrument. The holder of the position has the expectation that the financial instrument will increase in value. This is known as a bullish position. The term "long position" is often used in context of buying options contracts.

Trading basics

Management buyout

A management buyout (MBO) is a form of acquisition in which a company's existing managers acquire a large part, or all, of the company, whether from a parent company or individual. Management and leveraged buyouts became noted phenomena of 1980s business economics and most frequently refer to leveraged transactions where managers take a company private. These transactions, while originat

Finance

Market distortion

In neoclassical economics, a market distortion is any event in which a market reaches a market clearing price for an item that is substantially different from the price that a market would achieve while operating under conditions of perfect competition and state enforcement of legal contracts and the ownership of private property. In other words, a distortion is "any departure from the i

Trading basics

Multi Commodity Exchange

Multi Commodity Exchange of India Limited, also known as the Multi Commodity Exchange of India (MCX), is an Indian commodity exchange. It was established in 2003 and is currently based in Mumbai. It is India's largest commodity derivatives exchange. The average daily turnover of commodity futures contracts increased by 26% to ₹32,424 crore during FY2019-20, as against ₹25,648 crore in FY

Assets

NEO (blockchain)

Neo is a blockchain-based cryptocurrency and application platform used to run smart contracts and decentralized applications. The project, originally named Antshares, was founded in 2014 by Da HongFei and Erik Zhang and rebranded as Neo in 2017. In 2017 and 2018, it became popular in China despite the recently enacted prohibition on cryptocurrency in that country.

Networks

Nervos Network

Nervos Network is a proof-of-work blockchain platform which consists of multiple blockchain layers that are designed for different functions. The native cryptocurrency of this layer is called CKB. Smart contracts and decentralized applications can be deployed on the Nervos blockchain. The Nervos Network was founded in 2018.

Fiat currencies

Non-deliverable forward

In finance, a non-deliverable forward (NDF) is an outright forward contract or futures contract in which counterparties settle the difference between the contracted NDF price or rate and the prevailing spot price or rate on an agreed notional amount. It is used in various markets such as foreign exchange and commodities. NDFs are also known as forward contracts for differences (FCD).

Finance

Outline of finance

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

Assets

Perpetual futures

In finance, perpetual futures, also known as perpetual swaps or colloquially as perps, are contract agreements to non-optionally buy or sell an asset at an unspecified point in the future. Perpetual futures are cash-settled, and they differ from regular futures in that they lack a pre-specified delivery date and can thus be held indefinitely without the need to roll over contracts as the

Securities & exchanges

Production sharing agreement

Production sharing agreements (PSAs) or production sharing contracts (PSCs) are a common type of contract signed between a government and a resource extraction company (or group of companies) concerning how much of the resource (usually oil) extracted from the country each will receive.

Securities & exchanges

Property derivative

A property derivative is a financial derivative whose value is derived from the value of an underlying real estate asset. In practice, because individual real estate assets fall victim to market inefficiencies and are hard to accurately price, property derivative contracts are typically written based on a real estate property index. In turn, the real estate property index attempts to a

Securities & exchanges

Ratio spread

A ratio spread or frontspread is a multi-leg options position. Like a vertical, the ratio spread involves buying and selling options on the same underlying security with different strike prices and the same expiration date. In this spread, the number of option contracts sold is not equal to a number of contracts bought. An unequal number of options contracts gives this spread certain u

Securities & exchanges

Real estate derivative

A real estate derivative is a financial instrument whose value is based on the price of real estate. The core uses for real estate derivatives are: hedging positions, pre-investing assets and re-allocating a portfolio. The major products within real estate derivatives are: swaps, futures contracts, options (calls and puts) and structured products. Each of these products can use a differ

Trading basics

S&P 500 futures

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

Securities & exchanges

Single-stock futures

In finance, a single-stock future (SSF) is a type of futures contract between two parties to exchange a specified number of stocks in a company for a price agreed today (the futures price or the strike price) with delivery occurring at a specified future date, the delivery date. The contracts can be later traded on a futures exchange.

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.

Finance

Spread trade

In finance, a spread trade (also known as a relative value trade) is the simultaneous purchase of one security and sale of a related security, called legs, as a unit. Spread trades are usually executed with options or futures contracts as the legs, but other securities are sometimes used. They are executed to yield an overall net position whose value, called the spread, depends on the di

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

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

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.

Finance

Working Group on Financial Markets

The President's Working Group on Financial Markets, known colloquially as the Plunge Protection Team, or "(PPT)" was created by Executive Order 12631, signed on March 18, 1988, by United States President Ronald Reagan.

Securities & exchanges

XVA

In mathematical finance, X-Value Adjustment (XVA, xVA) is an umbrella term referring to a number of different "valuation adjustments" that banks must make when assessing the value of derivative contracts that they have entered into. The purpose of these is twofold: primarily to hedge for possible losses due to other parties' failures to pay amounts due on the derivative contracts; but al