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Digital assets and currencies

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

Securities & exchanges

Securities lending

In finance, securities lending or stock lending refers to the lending of securities by one party to another.

Finance

Securities market participants (United States)

Securities market participants in the United States include corporations and governments issuing securities, persons and corporations buying and selling a security, the broker-dealers and exchanges which facilitate such trading, banks which safe keep assets, and regulators who monitor the markets' activities. Investors buy and sell through broker-dealers and have their assets retained b

Securities & exchanges

Securitization

Securitization is the financial practice of pooling contractual debt obligations (such as residential mortgages, commercial mortgages, auto loans, or credit card debt) and selling their associated cash flows to investors. The financial instruments sold in such transactions are known as securities, types of which include bonds, pass-through securities, and collateralized debt obligations

Trading basics

Services marketing

Services marketing is a specialized branch of marketing which emerged as a separate field of study in the early 1980s, following the recognition that the unique characteristics of services required different strategies compared with the marketing of physical goods.

Trading basics

Social selling

Social selling is the process of developing relationships as part of the sales process. Today this often takes place via social networks such as LinkedIn, Twitter, Facebook, and Pinterest, but can take place either online or offline. Examples of social selling techniques include sharing relevant content, interacting directly with potential buyers and customers, personal branding, and soc

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

Finance

Spot contract

In finance, a spot contract, spot transaction, or simply spot, is a contract of buying or selling a commodity, security or currency for immediate settlement (payment and delivery) on the spot date, which is normally two business days after the trade date. The settlement price (or rate) is called spot price (or spot rate). A spot contract is in contrast with a forward contract or futures

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.

Trading basics

Tanzania Mercantile Exchange

Tanzania Mercantile Exchange is a commodity exchange in Tanzania. The commodities exchange is put in place to help various farmers access the domestic and global market better and obtain a fair price in selling of their produce. The exchange is currently undergoing training of their staff and has begun pilot trading in Sesame Seeds and Green Grams. The exchange plans to trade in coffee,

Finance

Telexfree

Telexfree (stylized as TelexFREE), a trade name owned by Telexfree Inc., was a multibillion-dollar Ponzi scheme disguised as an internet phone service company. Prosecutors have described it as the largest fraud of all time in terms of the number of people affected - more than 1 million, with victims in various countries. The brand became best known for its operations in Brazil held by Ym

Trading basics

TGJones

TG Jones High Street Limited is a British newsagent, stationer and book retailer, founded in June 2025 as a result of WHSmith selling its 480-store high street retail and online businesses to Modella Capital. Modella charges the retailer a royalty fee to use the TGJones name.

Trading basics

The Fear Index

The Fear Index is a 2011 novel by British author Robert Harris. It is set in a period of roughly 24 hours on 6 May 2010, which was the date of the British general election and the Flash Crash. It follows the interactions of a group of employees at Hoffmann Investment Technologies, a fictional hedge fund operating in Geneva.

Trading basics

Toys "R" Us

Toys "R" Us is an American toy, clothing, and baby product retailer that was founded in April 1948 by Charles Lazarus in Washington, D.C. The retailer initially began as Children's Supermart, selling furniture until it refocused itself as Toys "R" Us in June 1957.

Trading basics

Unique selling proposition

In marketing, the unique selling proposition (USP), also called the unique selling point or the unique value proposition (UVP) in the business model canvas, is the marketing strategy of informing customers about how one's own brand or product is superior to its competitors (in addition to its other values).

Securities & exchanges

Uptick rule

The uptick rule is a trading restriction that states that short selling a stock is allowed only on an uptick. For the rule to be satisfied, the short must be either at a price above the last traded price of the security, or at the last traded price when the most recent movement between traded prices was upward (i.e. the security has traded below the last-traded price more recently than a

Finance

Valuation of options

In finance, a price (premium) is paid or received for purchasing or selling options.

Trading basics

Value (marketing)

Value in marketing, also known as customer-perceived value, is the difference between a prospective customer's evaluation of the benefits and costs of one product when compared with others. Value may also be expressed as a straightforward relationship between perceived benefits and perceived costs: Value = Benefits - Cost.

Securities & exchanges

Victor Niederhoffer

Victor B. Niederhoffer (December 10, 1943 – August 4, 2026) was an American hedge fund manager, eight-time U.S. National Squash Champion (five times in singles) and four-time national paddleball champion (twice in singles), bestselling author, and statistician. Born and raised in Brooklyn, New York, after attending public schools there he graduated with a B.A. in Statistics and Economics

Trading basics

War profiteering

A war profiteer is any individual or organization that earns excessive or unethical profit from warfare or by selling weapons, supplies, or services to parties engaged in conflict. The term typically carries strong negative connotations and is often associated with exploitation during times of national crisis. More broadly profiteering, making a profit, criticized as excessive or unreaso

Trading basics

Water trading

Water trading is the process of buying and selling water access entitlements, also often called water rights. The terms of the trade can be either permanent or temporary, depending on the legal status of the water rights. Some of the western states of the United States, Chile, South Africa, Australia, Iran and Spain's Canary Islands have water trading schemes. Some consider Australia's

Trading basics

Wife selling

Wife selling is the practice of a husband selling his wife and may include the sale of a female by a party outside a marriage. Wife selling has had numerous purposes throughout the practice's history; and the term "wife sale" is not defined in all sources relating to the topic.