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Digital assets and currencies

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

Trading basics

NZX

NZX is the national stock exchange of New Zealand and, as NZX Limited, is also a publicly owned company listed on the exchange it operates. NZX is the parent company of Smartshares and Wealth Technologies.

Finance

O2 Money

O2 Money was a range of financial services provided by O2 in the United Kingdom.

Banking

Oba Otudeko

Oba Otudeko CFR (born 18 August 1943) is a Nigerian businessman who founded the Honeywell Group. He is also the founder of the Oba Otudeko Foundation and former chairman of FBN Holdings.

Banking

Obadiah Mailafia

Obadiah Mailafia (24 December 1956 – 19 September 2021) was a Nigerian development economist and the 2019 Nigeria Presidential election Candidate of African Democratic Congress (ADC). He was a former official of the African Development Bank Group and one-time Deputy Governor of the Central Bank of Nigeria (CBN). He was also the Chief of Staff of the African, Caribbean and Pacific Group o

Trading basics

Observational techniques

In marketing and the social sciences, observational research (or field research) is a social research technique that involves the direct observation of phenomena in their natural setting. This differentiates it from experimental research in which a quasi-artificial environment is created to control for spurious factors, and where at least one of the variables is manipulated as part of th

Trading basics

Obsolescence

Obsolescence is the process of becoming antiquated, out of date, old-fashioned, no longer in general use, no longer useful, or superseded by innovation, or the condition of being in such a state. When used in a biological sense, it means imperfect or rudimentary when compared with the corresponding part of other organisms. The international standard IEC 62402:2019 Obsolescence Managemen

Fiat currencies

Obsolete denominations of United States currency

The United States has produced several coins and banknotes of its dollar which no longer circulate or have been disused. Many of these were removed for specific reasons such as inflation reducing their value, rising minting costs, a lack of demand, or being too similar to another denomination.

Trading basics

Obverse and reverse

The obverse and reverse are the two flat faces of coins and some other two-sided objects, including paper money, flags, seals, medals, drawings, old master prints and other works of art, and printed fabrics. In this usage, obverse means the front face of the object and reverse means the back face. The obverse of a coin is commonly called heads, because it often depicts the head of a prom

Trading basics

Occupy Homes

Occupy Homes or Occupy Our Homes is part of the Occupy movement which attempts to prevent the foreclosure of people's homes. Protesters delay foreclosures by camping out on the foreclosed property. They also stage protests at the banks responsible for the ongoing foreclosure crisis, sometimes blocking their entrances. It has been compared to the direct action taken by people to prevent h

Trading basics

Ocean Independence

Ocean Independence is a yacht brokerage firm that provides luxury yachting services across yacht sales, yacht charter, management, and build. The company is headquartered in Küsnacht, Zurich, Switzerland.

Trading basics

Oceania Cruises

Oceania Cruises is a cruise line based in Miami-Dade County, Florida, that operates eight cruise ships on worldwide itineraries. It typically offers cruises that last between 10 and 14 days, but it is also known for its long cruises lasting up to 195 days. The line's president was Frank A. Del Rio Jr. who is the son of the co-founder of the brand, Frank A. Del Rio Sr., until February 18,

Trading basics

Octopus card

The Octopus card (Chinese: 八達通; Jyutping: baat3 daat6 tung1, Cantonese) is a reusable contactless stored value smart card for making electronic payments in online or offline systems in Hong Kong. Launched in September 1997 to collect fares for the territory's public transport system, it has grown into a widely used system for transport and other retail transactions in Hong Kong. It is al

Banking

Oda Gasinzigwa

Oda Gasinzigwa (born 1966) is a Rwandan civil servant and politician. Born in Tanzania as a refugee, she was educated at the Institute of Development Management in Mzumbe and then worked for eight years at the National Bank of Commerce in Dar es Salaam. When the Rwandan genocide ended in 1994, she moved to Kigali and worked with various ministries to improve women's economic and leadersh

Finance

Odd lotter

An odd lotter is an investor who purchases shares or other securities in small or unusual quantities. Stocks are typically traded in increments of 100 shares, a quantity known as a round lot or board lot. The cost of 100 shares of a security may be beyond the means of an individual investor, or may represent a larger investment than the investor wishes to make. Thus, the investor purcha

Trading basics

Odeon Cinemas

Odeon Cinemas Limited, trading as Odeon (stylised in all caps), is a cinema brand name operating in the United Kingdom, Ireland, Norway and Greece, which along with UCI Cinemas, Cinesa and Nordic Cinema Group is part of the Odeon Cinemas Group subsidiary of AMC Theatres. It uses the famous name of the Odeon cinema circuit first introduced in Great Britain in 1930. As of 2016, Odeon is th

Trading basics

Odious debt

In international law, odious debt, also known as illegitimate debt, is a legal theory that says that the national debt incurred by a despotic regime should not be enforceable. Such debts are, thus, considered by this doctrine to be personal debts of the government that incurred them and not debts of the state. In some respects, the concept is analogous to the invalidity of contracts sign

Networks

Odysee

Odysee is an American video hosting platform which uses a combination of decentralized servers and the LBRY blockchain. The service was created in December 2020. The site is based on a broad interpretation of the concept of freedom of speech.

Trading basics

OECD Guidelines for Multinational Enterprises on Responsible Business Conduct

The OECD Guidelines for Multinational Enterprises on Responsible Business Conduct are recommendations on responsible business conduct addressed by governments to multinational enterprises operating in or from the 52 adhering countries. The Guidelines provide non-binding principles and standards for responsible business conduct in a global context that are consistent with applicable laws

Securities & exchanges

Oesterreichische Kontrollbank

The Oesterreichische Kontrollbank (OeKB, lit. 'Austrian Control Bank') is a special-purpose financial institution in Austria, headquartered in Vienna. It was founded in 1946 and is owned by Austria's main banks. While technically a private-sector organization, part of its activity is carried out on behalf of the Austrian government and accordingly backed by the state budget.

Banking

Of Unknown Origin

Of Unknown Origin is a 1983 psychological horror film directed by George P. Cosmatos in his North American film debut, and starring Peter Weller, Jennifer Dale, Lawrence Dane, Kenneth Welsh, Louis Del Grande, and Shannon Tweed in her film debut. Based on the novel The Visitor by Chauncey G. Parker III, it focuses on a mild-mannered Manhattan banker who becomes increasingly obsessive and

Trading basics

OfferUp

OfferUp is an online mobile-first C2C marketplace with an emphasis on in-person transactions. It was founded as a competitor to Craigslist, differentiating itself with mobile-friendly apps and user profiles with ratings.

Trading basics

Office for Budget Responsibility

The Office for Budget Responsibility (OBR) is a non-departmental public body funded by the UK Treasury that provides independent economic forecasts and independent analysis of the public finances.

Banking

Office of Fair Trading v Abbey National plc

Office of Fair Trading v Abbey National plc and Others [2009] UKSC 6 is a judicial decision of the United Kingdom Supreme Court relating to bank charges in the United Kingdom, with reference to the situation where a bank account holder goes into unplanned overdraft.

Finance

Office of Financial Research

The Office of Financial Research (OFR) is an independent bureau reporting to the United States Department of the Treasury. Created in the aftermath of the 2008 financial crisis, the OFR monitors and collects data to identify risks across the financial system.

Trading basics

Office of Insurance Commission

The Office of Insurance Commission (OIC) (Thai: สำนักงานคณะกรรมการกำกับและส่งเสริมการประกอบธุรกิจประกันภัย) is the regulator of Thailand’s insurance industry operating under the supervision of the Thai Minister of Finance. The OIC is empowered to regulate insurance companies, brokers and agents and was established under the Thailand Government Insurance Commission Act B.E. 2550 which su

Trading basics

Office of Price Administration

The Office of Price Administration (OPA) was established within the Office for Emergency Management of the United States government by Executive Order 8875 on August 28, 1941. The functions of the OPA were originally to control money (price controls) and rents after the outbreak of World War II.

Trading basics

Office of Tax Simplification

The Office of Tax Simplification was an independent office of HM Treasury, part of the Government of the United Kingdom. The office was created on 20 July 2010 to identify complexities in the tax system burdensome to both businesses and individual taxpayers in order to recommend their reduction. The office was tasked with publishing its findings for the Chancellor of the Exchequer to con

Finance

Office of the Superintendent of Financial Institutions

The Office of the Superintendent of Financial Institutions (OSFI; French: Bureau du surintendant des institutions financières, BSIF) is an independent agency of the Government of Canada reporting to the Minister of Finance created "to contribute to public confidence in the Canadian financial system". It is the sole regulator of banks, and the primary regulator of insurance companies, tru

Banking

Official cash rate

The official cash rate (OCR) is the term used in Australia and New Zealand for the bank rate and is the rate of interest which the central bank charges on overnight loans between commercial banks. This allows the Reserve Bank of Australia and the Reserve Bank of New Zealand to adjust the interest rates that apply in each country's economy. The OCR cannot be changed by transactions betwee

Banking

Offshore bank

An offshore bank is a bank that is operated and regulated under international banking license (often called offshore license), which usually prohibits the bank from establishing any business activities in the jurisdiction of establishment. Due to less regulation and transparency, accounts with offshore banks were often used to hide undeclared income. Since the 1980s, jurisdictions that p

Finance

Offshore company

The term "offshore company" or "offshore corporation" is used in at least two distinct and different ways. An offshore company may be a reference to:

Trading basics

Offshore financial centre

An offshore financial centre (OFC) is defined as a "country or jurisdiction that provides financial services to nonresidents on a scale that is incommensurate with the size and the financing of its domestic economy."

Finance

Offshore fund

An offshore fund is generally a collective investment scheme domiciled in an offshore jurisdiction. Like the term "offshore company", the term is more descriptive than definitive, and both the words 'offshore' and 'fund' may be construed differently.

Finance

Offshore investment

Offshore investment is the keeping of money in a jurisdiction other than one's country of residence. Offshore jurisdictions are used to pay less tax in many countries by large and small-scale investors. Poorly regulated offshore domiciles have served historically as havens for tax evasion, money laundering, or to conceal or protect illegally acquired money from law enforcement in the inv

Finance

Offshore trust

An offshore trust is a conventional trust that is formed under the laws of an offshore jurisdiction.

Finance

Offshoring

Offshoring is the relocation of a business process from one country to another—typically an operational process, such as manufacturing, or supporting processes, such as accounting. Usually this refers to a company business, although state governments may also employ offshoring. More recently, technical and administrative services have been offshored.

Trading basics

OFX (company)

OFX Group Limited is an Australian financial technology company that provides international payments, foreign exchange and spend management services. It is headquartered in Sydney and listed on the Australian Securities Exchange.

Trading basics

OGS (electronic toll collection)

OGS (Turkish: Otomatik Geçiş Sistemi English: Automated Transit System) was an electronic toll collection system of RFID transponder type available on toll roads and toll bridges in Turkey. The system was adopted to avoid traffic congestion at toll plazas. The successor to OGS is the HGS system of RFID tag type implemented later on at the same toll plazas.

Trading basics

Oil-storage trade

The oil-storage trade, also referred to as contango, is a market strategy in which large, often vertically-integrated oil companies purchase oil for immediate delivery and storage—when the price of oil is low— and hold it in storage until the price of oil increases. Investors bet on the future of oil prices through a financial instrument, oil futures in which they agree on a contract bas

Finance

Oki Electric Industry

Oki Electric Industry Co., Ltd. (沖電気工業株式会社, Oki Denki Kōgyō Kabushiki-gaisha), commonly referred to as OKI (), is a Japanese information and communications technology company, headquartered in Toranomon, Minato-ku, Tokyo and operating in over 120 countries around the world.

Trading basics

OKICA

OKICA (オキカ, Okika), short for "Okinawa IC Card", is a contactless smart card used for public transport in Okinawa.

Assets

OKX

OKX, formerly known as OKEx, is a cryptocurrency exchange based in San Jose, California.

Banking

Olaf Ephraim

Olaf René Ephraim (born 30 September 1965) is a Dutch investment banker and politician. He worked for the banks MeesPierson and Fortis before joining the conservative and right-wing populist party Forum for Democracy (FvD). Ephraim served as the party's treasurer and was elected to the House of Representatives in the 2021 general election. He left Forum for Democracy in May 2021 and join

Securities & exchanges

Old Saint Petersburg Stock Exchange and Rostral Columns

The Old Saint Petersburg Stock Exchange (also Bourse) and Rostral Columns, located in Saint Petersburg in the Russian Federation, are significant examples of Greek Revival architecture. Designed by French architect Thomas de Thomon, and inspired by the Greek Temple of Hera at Paestum, the stock exchange was constructed between 1805 and 1810. The rostral columns erected on either side of

Trading basics

Old School RuneScape

Old School RuneScape (OSRS) is a massively multiplayer online role-playing game (MMORPG) developed and published by Jagex. It was released for Windows and macOS on 22 February 2013 as a version of RuneScape based on an August 2007 backup found in Jagex's archives. Although initially created as a restoration of an older version of RuneScape, the game has since developed into a separately

Finance

Oleg Itskhoki

Oleg Itskhoki (born in Moscow on January 7, 1983) is a Russian-American economist specialized on macroeconomics and international economics and (as of 2024) a professor of economics at the Harvard University. He won the John Bates Clark Medal for his "fundamental contributions to both international finance and international trade" in 2022.

Banking

Olga Zoutendijk

Olga Louise Zoutendijk (born 1 March 1961 in Curacao) is a global business woman and banker. She has held senior executive roles in Asia, Australia, Europe and the United States. In May 2016, Zoutendijk was appointed chair of the Supervisory Board of ABN AMRO Group and ABN AMRO Bank. She became the first woman to be appointed chair of a Supervisory Board of a stock exchange listed compan

Trading basics

Olive Garden

Darden Concepts, Inc., doing business as Olive Garden, is an American casual dining restaurant chain specializing in Italian-American cuisine. It is a unit of Darden Restaurants, Inc., which is headquartered in Orange County, Florida. As of 2022, Olive Garden restaurants accounted for $4.5 billion of the $9.63 billion revenue of Darden.

Banking

Olu Falae

Chief Samuel Oluyemisi Falae (born 21 September 1938), is a Nigerian banker, administrator and politician who was secretary to the military government of Ibrahim Babangida from January 1986 to December 1990, and briefly the Finance Minister in 1990. He ran for president in Nigeria's Third and Fourth Republics.

Networks

Olympics Go! Paris 2024

Olympics Go! Paris 2024 (stylized as Olympics GO! Paris 2024) is a 2024 city-building and sports video game published by nWay and officially licensed with the International Olympic Committee (IOC) to coincide with the 2024 Summer Olympics.

Trading basics

Omani rial

The Omani rial (Arabic: ريال, symbol: ; currency code: OMR) is the currency of Oman. It is divided into 1000 baisa (also written baiza, بيسة).

Fiat currencies

Omani rial sign

The Omani rial sign () is the official currency symbol used for the Omani rial, the official currency of Oman. The design was presented to the public by the Central Bank of Oman on 19 November 2025. It consists stylized Arabic letters ʿayn (ع) in its initial form (عـ) and rāʾ (ر), crossed by two lines. The symbol should precede the value, e.g., 10, with an intervening space.

Trading basics

Omnichannel

Omnichannel is a neologism describing a business strategy. According to Frost & Sullivan, omnichannel is defined as "seamless and effortless, high-quality customer experiences that occur within and between contact channels".

Trading basics

OMNY

OMNY ( OM-nee, short for One Metro New York) is a contactless fare-payment system that has been implemented for use on public transit in the New York metropolitan area. OMNY can be used to pay fares at all New York City Subway and Staten Island Railway stations, on all MTA buses, AirTrain JFK, Metro North's Hudson Rail Link, the Roosevelt Island Tram, Bee-Line buses, and NICE buses. Ther

Securities & exchanges

OMX Stockholm 30

The OMX Stockholm 30 (OMXS30) is a stock market index for the 30 largest and most traded stocks on the Nasdaq Stockholm stock exchange. It is a price return and modified free float capitalization-weighted index.

Trading basics

On hold messaging

On-hold messaging is a service used by businesses and organizations to deliver information to their callers waiting on hold or while they are being transferred. Also called audio marketing, on-hold messaging is a specialist area of marketing and branding.

Trading basics

One Equity Partners

One Equity Partners is a private equity firm with over $10 billion in assets under management which primarily deals with the industrial, healthcare and technology sectors in North America and Europe. One Equity Partners was the merchant banking arm of JPMorgan Chase, focused on leveraged buyout and growth capital investments in middle-market companies. Formed by Bank One in 2001, the gro

Trading basics

One Piece Treasure Cruise

One Piece Treasure Cruise (ONE PIECE(ワンピース) トレジャークルーズ) is a free-to-play role-playing video game set in the One Piece universe, developed and published by Bandai Namco Entertainment. It was released for Android and iOS platforms. As of September 2019 the game has exceeded 100 million downloads worldwide. It features gacha game mechanics.

Securities & exchanges

OneChicago

OneChicago was a US-based all-electronic futures exchange with headquarters in Chicago, Illinois. The exchange offered approximately 12,509 single-stock futures (SSF) products with names such as IBM, Apple and Google. All trading was cleared through Options Clearing Corporation (OCC). The OneChicago exchange closed in September 2020.

Trading basics

OneCoin

OneCoin is a fraudulent cryptocurrency scheme conducted by offshore companies OneCoin Ltd (based in Bulgaria and registered in UAE) and OneLife Network Ltd (registered in Belize), both founded by Ruja Ignatova in concert with Sebastian Greenwood. OneCoin is considered a Ponzi scheme due to its organisational structure of paying early investors using money obtained from newer ones. It was

Trading basics

Onion Futures Act

The Onion Futures Act is a United States law banning the trading of futures contracts on onions as well as "motion picture box office receipts". In 1955, two onion traders, Sam Siegel and Vincent Kosuga, cornered the onion futures market on the Chicago Mercantile Exchange. The resulting regulatory actions led to the passing of the act on August 28, 1958. The law was amended in 2010 to ad

Trading basics

Online shopping

Online shopping is a form of electronic commerce which allows consumers to buy goods or services directly from a seller over the Internet using a web browser or a mobile app. Consumers generally find a product of interest by visiting a retailer's website specifically. They may also search among alternative vendors using a shopping search engine, which displays the same product's availab

Trading basics

Online ticket brokering

Online ticket brokering is the resale of tickets through a web-based ticket brokering service or online ticket exchanges. Prices on ticket brokering websites are determined by demand, availability, and the ticket reseller. Tickets sold through an online ticket brokering service may or may not be authorized by the official seller.

Trading basics

Online video analytics

Online video analytics (also known as Web video analytics) is the measurement, analysis and reporting of videos viewed online. It is used for the purposes of understanding the consumption patterns (behavioral analysis) and optimizing viewing experience (quality of service analysis).

Payments & settlement

Online wallet

An online wallet is a software or web service that allows users to store and control their online shopping information, such as logins, passwords, shipping address and credit card details. It also provides a method for consumers to purchase products from online retailers.

Fiat currencies

Onno Ruding

Herman Onno Christiaan Rudolf "Onno" Ruding (born 15 August 1939) is a retired Dutch politician of the Christian Democratic Appeal (CDA) party and businessman.

Trading basics

Ono (Spain)

ONO was a Spanish broadband communication and entertainment company, delivering integrated telephone, television and Internet services to its residential customers. In this segment, it has 3.7 million services contracted and over six million users.

Trading basics

Opal card

Opal is a contactless smartcard fare collection system for public transport services in New South Wales, Australia. Operation of the Opal system is managed by Transport for NSW. First launched in late 2012, Opal is valid on Transport for NSW's metro, train, bus, ferry and light rail services that operate in Sydney, Central Coast, Hunter Region, Blue Mountains, Illawarra and Southern High

Banking

Open banking

In financial services, open banking allows for financial data to be shared between banks and third-party service providers through the use of application programming interfaces (APIs). Traditionally, banks have kept customer financial data within their own closed systems. Open banking allows customers to share their financial information securely and electronically with other banks or ot

Finance

Open Financial Exchange

Open Financial Exchange (OFX) is a data stream format for exchanging financial information that evolved from Microsoft's Open Financial Connectivity (OFC) and Intuit's Open Exchange file formats.

Banking

Open market operation

In macroeconomics, an open market operation (OMO) is an activity by a central bank to exchange liquidity in its currency with a bank or a group of banks. The central bank can either transact government bonds and other financial assets in the open market or enter into a repurchase agreement or secured lending transaction with a commercial bank. The latter option, often preferred by centra

Finance

Open outcry

Open outcry is a method of communication between professionals on a stock exchange or futures exchange, typically on a trading floor. It involves shouting and the use of hand signals to transfer information primarily about buy and sell orders. The part of the trading floor where this takes place is called a pit.

Trading basics

Open road tolling

Open road tolling (ORT), also called all-electronic tolling, cashless tolling, or free-flow tolling, is the collection of tolls on toll roads without the use of tollbooths. An electronic toll collection system is usually used instead. The major advantage to ORT is that users are able to drive through the toll plaza at highway speeds without having to slow down to pay the toll. In some in

Finance

Open-high-low-close chart

An open-high-low-close chart (OHLC), also called OHLC bar chart, is a type of chart typically used in technical analysis to illustrate movements in the price of a financial instrument over time. Each vertical line on the chart shows the price range (the highest and lowest prices) over one unit of time, e.g., one day or one hour. Tick marks project from each side of the line indicating th

Trading basics

Opencard

Opencard was a municipal contactless smart card system used in Prague, Czech Republic, between 2007 and 2020. It entered public use in April 2007, initially for paid parking; and later began to serve as a library card at the Municipal Library of Prague. In 2008, it was expanded to carry electronic season tickets for Prague Integrated Transport.

Networks

OpenTimestamps

OpenTimestamps (OTS) is an open-source project that aims to provide a standard format for blockchain timestamping.

Finance

Operating margin

In business, operating margin—also known as operating income margin, operating profit margin, EBIT margin and return on sales (ROS) - is the ratio of operating income ("operating profit" in the UK) to net sales, usually expressed in percent.

Finance

Operating partner

An operating partner is a title used by venture capital (VC) and private equity (PE) firms to describe a role dedicated to working with privately held companies to increase value. The role was created by large-capitalization private equity groups when the importance of driving corporate change to add value increased as sellers became more sophisticated and financial engineering less cent

Trading basics

Operation Greenback

Operation Greenback was a Miami, Florida-based, multi-agency U.S. government task force targeting money laundering connected to drug trafficking.

Trading basics

Operational database

Operational database management systems (also referred to as OLTP databases or online transaction processing databases), are used to update data in real-time. These types of databases allow users to do more than simply view archived data. Operational databases allow you to modify that data (add, change or delete data), doing it in real-time. OLTP databases provide transactions as main ab

Trading basics

Opinion leadership

Opinion leadership is leadership by an active media user who interprets the meaning of media messages or content for lower-end media users. Typically opinion leaders are held in high esteem by those who accept their opinions. Opinion leadership comes from the theory of two-step flow of communication propounded by Paul Lazarsfeld and Elihu Katz. Significant developers of the opinion leade

Banking

Oppenheim family

The Oppenheim family is a German Jewish banking family which founded what was Europe's biggest private bank, Sal. Oppenheim.

Finance

Optimal stopping

In mathematics, the theory of optimal stopping or early stopping is concerned with the problem of choosing a time to take a particular action, in order to maximise an expected reward or minimise an expected cost. Optimal stopping problems can be found in areas of statistics, economics, and mathematical finance (related to the pricing of American options). A key example of an optimal stop

Fiat currencies

Optimum currency area

In economics, an optimum currency area (OCA) or optimal currency region (OCR) is a geographical region in which it would maximize economic efficiency to have the entire region share a single currency.

Finance

Option (finance)

In finance, an option is a contract which conveys to its owner, the holder, the right, but not the obligation, to buy or sell a specific quantity of an underlying asset or instrument at a specified strike price on or before a specified date, depending on the style of the option.

Finance

Option naming convention

In financial markets, an option naming convention is a method of identifying which of many possible options is being quoted or traded.

Finance

Option style

In finance, the style or family of an option is the class into which the option falls, usually defined by the dates on which the option may be exercised. The vast majority of options are either European or American (style) options. These options—as well as others where the payoff is calculated similarly—are referred to as "vanilla options". Options where the payoff is calculated differe

Finance

Option time value

In finance, the time value (TV) (extrinsic or instrumental value) of an option is the premium a rational investor would pay over its current exercise value (intrinsic value), based on the probability it will increase in value before expiry. For an American option this value is always greater than zero in a fair market, thus an option is always worth more than its current exercise value.

Trading basics

Option-adjusted spread

Option-adjusted spread (OAS) is the yield spread which has to be added to a benchmark yield curve to discount a security's payments to match its market price, using a dynamic pricing model that accounts for embedded options. OAS is hence model-dependent. This concept can be applied to a mortgage-backed security (MBS), or another bond with embedded options, or any other interest rate deri

Finance

Options backdating

In finance, options backdating is the practice of altering the date a stock option was granted, to a usually earlier date (i.e backdating), but sometimes later date (i.e. forward dating), at which the underlying stock price was lower. This is a way of repricing options to make them more valuable when the option "strike price" (the fixed price at which the owner of the option can purchase

Finance

Options strategy

Option strategies are the simultaneous, and often mixed, buying or selling of one or more options that differ in one or more of the options' variables. Call options, simply known as Calls, give the buyer a right to buy a particular stock at that option's strike price. Opposite to that are Put options, simply known as Puts, which give the buyer the right to sell a particular stock at the

Trading basics

Opus card

Opus (stylized as OPUS) is a rechargeable, dual interface (contact/contactless) smart card automated fare collection system using the Calypso Standard and is used by major public transit operators in Greater Montreal and Quebec City in the province of Quebec, Canada. It complies with the ISO/IEC 14443 standard for smartcards and can be read by smartphones with an NFC antenna.

Payments & settlement

Orange Money

Orange Money is the mobile phone based money transfer service of French telecom company Orange S.A., available in most of the group's affiliates in Africa. Its users can deposit money into an account linked to their mobile phone number, and then access a range of services, in particular transferring money domestically and internationally, paying bills and buying airtime top-up.

Trading basics

Orangina

Orangina (French pronunciation: [ɔʁɑ̃ʒina]) is a French lightly carbonated beverage made from carbonated water, 12% citrus juice (10% from concentrated orange and 2% from a combination of concentrated lemon, concentrated mandarin, and concentrated grapefruit juices), as well as 2% orange pulp. Orangina is sweetened with sugar or high fructose corn syrup (glucose-fructose) and, in some ma

Trading basics

ORCA (computer system)

ORCA was a mobile-optimized web application used as a component of the "get out the vote" (GOTV) efforts for Mitt Romney's 2012 presidential campaign. It was intended to enable volunteers in polling stations around the country to report which voters had turned out, so that "missing" Republican voters and underperforming precincts could be targeted for last-minute efforts to get voters to

Trading basics

ORCA card

The ORCA card (standing for One Regional Card for All) is a contactless, stored-value fare and smart card system for public transit in the Puget Sound region of Washington, United States. It is valid on most transit systems in the Seattle metropolitan area, including Sound Transit, local bus agencies, Washington State Ferries, the King County Water Taxi, and Kitsap Fast Ferries. The ORCA

Finance

Order (exchange)

An order is an instruction to buy or sell on a trading venue such as a stock market, bond market, commodity market, financial derivative market or cryptocurrency exchange. These instructions can be simple or complicated, and can be sent to either a broker or directly to a trading venue via direct market access. There are some standard instructions for such orders.

Finance

Order book

An order book is the list of orders (manual or electronic) that a trading venue (in particular stock exchanges) uses to record the interest of buyers and sellers in a particular financial instrument. A matching engine uses the book to determine which orders can be fully or partially executed.

Trading basics

Organ trade

Organ trade (also known as the blood market or the red market) is the trading of human organs, tissues, or other body products, usually for transplantation. According to the World Health Organization (WHO), organ trade is a commercial transplantation where there is a profit, or transplantations that occur outside of national medical systems. There is a global need or demand for healthy b

Trading basics

Organic composition of capital

The organic composition of capital (OCC) is a concept developed by Karl Marx in his theory of capital, which was simultaneously his critique of political economy. It is derived from his more basic concepts of 'value composition of capital' and 'technical composition of capital'. Marx defines the organic composition of capital as "the value-composition of capital, in so far as it is deter