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Finance

ION Group

ION Group, also known as Ion and Ion Investment Group, is a financial data and software company headquartered in London. The company has expanded rapidly through a series of acquisitions. The Financial Times has compared it to Bloomberg L.P., although it has a low profile.

Assets

IOTA (technology)

IOTA is an open-source distributed ledger and cryptocurrency designed for the Internet of things (IoT). It uses a directed acyclic graph to store transactions on its ledger, motivated by a potentially higher scalability over blockchain based distributed ledgers. IOTA does not use miners to validate transactions, instead, nodes that issue a new transaction on the network must approve two

Trading basics

IPASS (Taiwan)

iPASS (Chinese: 一卡通; pinyin: yī kǎ tōng; Zhuyin Fuhao: ㄧ ㄎㄚˇ ㄊㄨㄥ) is a contactless smart card operated by the iPASS Corporation. Starting from February 13, 2017, both EasyCard and iPASS are accepted for virtually all public transport in Taiwan, including rapid transit, buses, and Taiwan Railway services. It also serves as an electronic wallet.

Trading basics

IPO underpricing algorithm

IPO underpricing is the increase in stock value from the initial offering price to the first-day closing price. Many believe that underpriced IPOs leave money on the table for corporations, but some believe that underpricing is inevitable. Investors state that underpricing signals high interest to the market which increases the demand. On the other hand, overpriced stocks will drop long-

Securities & exchanges

IQ Option

IQ Option is a binary options trading broker that also offers services in Forex, stocks, and cryptocurrencies. The company was founded in 2013. In 2017, IQ Option shifted its focus to CFDs and cryptocurrencies, though binary options remain a significant part of its operations in certain markets, particularly where regulations are less stringent.

Trading basics

Ira Rennert

Ira Leon Rennert (born May 31, 1934) is an American billionaire businessman, and the chairman and CEO of Renco Group. As of November 2024, Forbes estimated his net worth at US$3.8 billion.

Finance

Iranian National Tax Administration

The Iranian National Tax Administration or in brief INTA is one of the organizations affiliated to the Ministry of Economic Affairs and Finance in Iran which is responsible for handling the country's tax affairs. Among the tasks of this organization are reforming and mechanizing the country's tax system and implementing Value-added tax.

Fiat currencies

Iranian oil bourse

The Iranian Oil Bourse (Persian: بورس نفت ایران; also referred to as the International Oil Bourse, Iran Petroleum Exchange, Kish Exchange or Oil Bourse in Kish or Iran Crude Oil Exchange) is a commodity exchange on the island of Kish, Iran, which opened its first phase on 17 February 2008.

Fiat currencies

Iranian rial

The rial (Persian: ریال ایران, romanised: Riāl-e Irān; symbol: ﷼; abbreviation: Rl (singular) and Rls (plural) or IR in Latin; ISO code: IRR) is the official currency of Iran. It is subdivided into 100 dinars, but due to the rial's low purchasing power, the dinar is not practically used. The Iranian toman is the primary colloquial denomination of the Iranian rial.

Fiat currencies

Iranian toman

The Iranian toman (Persian: تومان, romanized: tūmân, pronounced [tuː.mɒːn]; sign: ₮; abbreviated IT) is a superunit of the official currency of Iran, the rial. One toman is equivalent to 10 (old), or 10,000 (new, official) rials. The name toman comes from Turco-Mongolian tümen "unit of ten thousand", see the unit called tumen.

Trading basics

Iress

Iress is a technology company providing software to the financial services industry in Asia-Pacific, North America, Africa and UK & Europe. Iress software has more than 200 integrations and 300 data feeds, and is used by more than 500,000 users globally.

Trading basics

Iridium

Iridium is a chemical element; it has the symbol Ir and atomic number 77. This very hard, brittle, silvery-white transition metal of the platinum group is considered the second-densest naturally occurring metal (after osmium), with a density of 22.56 g/cm3 (0.815 lb/cu in) as defined by experimental X-ray crystallography. 191Ir and 193Ir are the only two naturally occurring isotopes of i

Banking

Irish bank strikes (1966–1976)

The Irish bank strikes between 1966 and 1976 were three strikes of about a year's total duration which closed down all the clearing banks in Ireland. The strikes provided economists with a unique opportunity to study the functioning of a modern economy without access to bank deposits. Despite the significantly reduced access to bank deposits, the economy continued to grow, with cheques b

Banking

Irish pound

The pound (Irish: punt) was the currency of Ireland until 2002. Its ISO 4217 code was IEP, and the symbol was £ (or IR£ for distinction). The Irish pound was replaced by the euro on 1 January 1999. Euro currency did not start circulating until the beginning of 2002.

Finance

Irish Section 110 Special Purpose Vehicle

An Irish Section 110 special purpose vehicle (SPV) or section 110 company is an Irish tax resident company, which qualifies under Section 110 of the Taxes Consolidation Act 1997 (TCA) for a special tax regime that enables the SPV to attain "tax neutrality": i.e., the SPV pays no Irish taxes, VAT, or duties.

Securities & exchanges

Iron butterfly (options strategy)

In finance an iron butterfly, also known as the ironfly, is the name of an advanced, neutral-outlook, options trading strategy that involves buying and holding four different options at three different strike prices. It is a limited-risk, limited-profit trading strategy that is structured for a larger probability of earning smaller limited profit when the underlying stock is perceived to

Trading basics

Irrational exuberance

"Irrational exuberance" is a phrase used by the then-Federal Reserve Board chairman, Alan Greenspan, in a December 1996 speech given at the American Enterprise Institute during the dot-com bubble of the 1990s. The phrase was interpreted as a warning that the stock market might be overvalued.

Trading basics

IRS Criminal Investigation

Internal Revenue Service, Criminal Investigation (IRS-CI) is the United States federal law enforcement agency responsible for investigating potential criminal violations of the U.S. Internal Revenue Code and related financial crimes, such as money laundering, currency transaction violations, tax-related identity theft fraud and terrorist financing that adversely affect tax administration

Trading basics

Irwin L. Jacobs

Irwin L. Jacobs (July 15, 1941 – c. April 10, 2019) was an American businessman. He was the CEO of several large corporations, including the boat-building company Genmar Holdings. He earned the nickname "Irv the Liquidator" for his aggressive business practices in the 1970s and early 1980s. In 1973, Jacobs founded COMB ("Close-out Merchandise Buyers"), a catalog-based mail-order retail

Trading basics

Irwin v. Gavit

Irwin v. Gavit, 268 U.S. 161 (1925), was a case before the U.S. Supreme Court regarding the taxability, under United States tax law, of a divided interest in a bequest. It is notable (and thus appears frequently in law school casebooks) for the following holding:

Banking

İşbank Museum (Ankara)

İşbank Museum is a museum in Ankara, Turkey. The official name of the museum is "Economic Independence Museum" (Türkiye İş Bankası İktisadi Bağımsızlık Müzesi). This is the second museum of the bank the first being the İşbank Museum in Istanbul.

Finance

ISBInsight

ISBInsight is the biannual research periodical of the Indian School of Business (ISB). It features articles based on Indian and emerging markets-focused management research. ISBInsight also publishes interviews with thought leaders and decision makers from industry, academia, government and non-governmental organisations. It presents research across management areas such as strategy, mar

Securities & exchanges

ISDA Master Agreement

The ISDA Master Agreement, published by the International Swaps and Derivatives Association (ISDA), is the most commonly used master service agreement for over-the-counter (OTC) derivatives transactions internationally. It is part of a framework of documents, designed to enable OTC derivatives to be documented fully and flexibly. The framework consists of a master agreement, a schedule,

Trading basics

IShares

iShares is a collection of exchange-traded funds (ETFs) and index mutual funds managed by BlackRock, which acquired the brand and business from Barclays in 2009. The first iShares ETFs were known as World Equity Benchmark Shares (WEBS) but have since been rebranded.

Banking

Islamic banking and finance

Islamic banking, Islamic finance (Arabic: مصرفية إسلامية masrifiyya 'islamia), or Sharia-compliant finance is banking or financing activity that complies with Sharia (Islamic law) and its practical application through the development of Islamic economics. Some of the modes of Islamic finance include mudarabah (profit-sharing and loss-bearing), wadiah (safekeeping), musharaka (joint ventu

Banking

Islamic banking and finance in Canada

The demand for Islamic banking and finance has grown in Canada due to the growing Muslim population in the country who want to avoid riba and other financial practices in violation of sharia. These sharia-compliant financial products are not offered by main financial institutions and, thus, small financial companies are major players. However, major companies like WealthSimple are start

Finance

Islamic banking in Malaysia

Islamic banking in Malaysia began in September 1963 when Perbadanan Wang Simpanan Bakal-Bakal Haji (PWSBH) was established. PWSBH was set up as an institution for Muslims to save for their Hajj (pilgrimage to Mecca) expenses. In 1969, PWSBH merged with Pejabat Urusan Haji to form Lembaga Urusan dan Tabung Haji (now known as Lembaga Tabung Haji).

Banking

Islamic economics in Pakistan

The economic policies proposed under the banner of "Islamisation" in Pakistan include executive decrees on Zakāt (poor-due), Ushr (tithe), judicial changes that helped to halt land redistribution to the poor, and perhaps most importantly, elimination of riba (defined by activists as interest charged on loans and securities). Perhaps the foremost exponent of Islamisation among Pakistan's

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

Finance

ISO 10962

ISO 10962, known as Classification of Financial Instruments (CFI), is a six-letter-code used in the financial services industry to classify and describe the structure and function of a financial instrument (in the form of security or contract) as part of the instrument reference data. It is an international standard approved by the International Organization for Standardization (ISO). CF

Finance

ISO 15022

ISO 15022 is an ISO standard for securities messaging used in transactions between financial institutions. Participants in the financial industry need a common representation of the financial transactions they perform and this standard defines general message schema, which in turn are used by organizations to define messages in a complete and unambiguous way. This results in efficiency,

Trading basics

ISO 20022

ISO 20022 is an ISO standard for electronic data interchange between financial institutions. It describes a metadata repository containing descriptions of messages and business processes, and a maintenance process for the repository content. The standard covers financial information transferred between financial institutions that includes payment transactions, securities trading and sett

Finance

ISO 4217

ISO 4217 is a standard published by the International Organization for Standardization (ISO) that defines alpha codes and numeric codes for the representation of currencies, and provides information about the relationships between currencies and their minor units. This data is published in three tables:

Payments & settlement

ISO 8583

ISO 8583 is an international standard for financial transaction card originated interchange messaging. It is the International Organization for Standardization standard for systems that exchange electronic transactions initiated by cardholders using payment cards.

Finance

ISO 9362

ISO 9362 is an international standard for Business Identifier Codes (BIC), a unique identifier for business institutions, approved by the International Organization for Standardization (ISO). BIC is also known as SWIFT-BIC, SWIFT ID, or SWIFT code, after the Society for Worldwide Interbank Financial Telecommunication (SWIFT), which is designated by ISO as the BIC registration authority.

Finance

ISO 9564

ISO 9564 is an international standard for personal identification number (PIN) management and security in financial services.

Trading basics

ISO/IEC 14443

ISO/IEC 14443 Identification cards – Contactless integrated circuit cards – Proximity cards is an international standard that defines proximity cards used for identification, and the transmission protocols for communicating with it. The development of ISO/IEC 14443 began in the early 1990s, driven by the growing need for secure and efficient short-range wireless communication technologie

Trading basics

Isracard

Isracard (Hebrew: ישראכרט) is an Israeli company that is made up of four different companies: Isracard LTD, Europay LTD, Aminit LTD and American Express Israel, which offers financial services – including credit card issuing, loans, credit services, and flexible payment options.

Securities & exchanges

Israel Bonds

Israel Bonds, the commonly known name of Development Corporation for Israel (DCI), is the U.S. underwriter of debt securities issued by the State of Israel. DCI is headquartered in New York City and is a broker-dealer and member of the Financial Industry Regulatory Authority (FINRA). Dan Naveh is president and CEO.

Payments & settlement

Israel Credit Cards

Israel Credit Cards Ltd. (Hebrew: כרטיסי אשראי לישראל בע"מ), also known by the Cal (Hebrew: כאל) brand and its historical name "C.A.L" (Hebrew: כ.א.ל or by the nickname "Visa Cal" (Hebrew: ויזה כאל, is a company operating in the Israeli credit card market in two areas of activity: issuing debit cards, especially credit cards, and clearing credit card transactions. The company was founded

Finance

Israel Discount Bank

Israel Discount Bank, Ltd. (Hebrew: בנק דיסקונט לישראל) is an Israeli banking institution that offers a range of financial services, including retail banking, commercial banking, private banking, and financial services. The bank, headquartered in Tel Aviv, operates 112 branches throughout Israel.

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.

Finance

Israel Securities Authority

The Israel Securities Authority (ISA; Hebrew: רשות ניירות ערך) is the national securities regulator of Israel. Established by law in 1968, the Israel Securities Authority sees its mandate as a way to ensure an efficient capital market based on transparency and fairness. The ISA works to fight against securities fraud, insider trading, questionable accounting practices and other activitie

Trading basics

Israel Tax Authority

The Israel Tax Authority (Hebrew: רשות המסים בישראל, romanized: Rashut HaMisim B'Israel) is the national revenue service of Israel, operating under the Ministry of Finance. Established in 2004, it brings together the administration of income tax, real estate taxation, value-added tax, purchase tax and customs duties. It also administers the Property Tax and Compensation Fund, which compe

Banking

Israel's Anti-Concentration Law

Israel's Anti-Concentration Law, formally “A Law for Promotion of Competition and Reduction of Concentration”, is a law passed in December 2013 that seeks to reduce the size of existing large Israeli business groups organized in a pyramidal holding structures, separate financial holdings from non-financial holdings and prevent new pyramids from being formed.

Trading basics

Issue advocacy ads

'Issue advocacy ads, also called interest advocacy ads or issue-only ads, are communications that raise public awareness of a social or political issue. They are sponsored by advocacy groups, including issue advocacy groups and special interest groups. In the United States, the term is used mainly in campaign finance law, where issue advocacy is distinguished from express advocacy, which

Banking

It's a Wonderful Life

It's a Wonderful Life is a 1946 American Christmas fantasy drama film directed and produced by Frank Capra. It is based on the short story and booklet "The Greatest Gift", self-published by Philip Van Doren Stern in 1943, which itself is loosely based on the 1843 Charles Dickens novella A Christmas Carol.

Trading basics

Italian economic miracle

The Italian economic miracle (Italian: miracolo economico italiano), or the Italian economic boom (Italian: boom economico italiano), is the term used by historians, economists, and the mass media, first attributed by the Daily Mail in a correspondence from Rome on 25 May 1959, to designate the prolonged period of strong economic growth in Italy after World War II to the late 1960s, and

Finance

Italian lira

The lira ( LEER-ə, Italian: [ˈliːra]; pl.: lire, LEER-eh, Italian: [ˈliːre]) was the currency of Italy between 1861 and 2002. It was introduced by the Napoleonic Kingdom of Italy in 1807 at par with the French franc, and was subsequently adopted by the different states that would eventually form the Kingdom of Italy in 1861. It was subdivided into 100 centesimi (sing.: centesimo), which

Trading basics

Italian Sounding

Italian Sounding is the marketing phenomenon consisting of words and images, colour combinations (the Italian tricolour), and geographical references for brands that are evocative of Italy to promote and market agri-food products that have nothing to do with Italian cuisine. The phenomenon is described by the Office of the Ministry of Economic Development (MISE) called Directorate Genera

Finance

Itô calculus

Itô calculus, named after Kiyosi Itô, extends the methods of calculus to stochastic processes such as Brownian motion (see Wiener process). It has important applications in mathematical finance, in stochastic differential equations, and more recently even in machine learning.

Securities & exchanges

Ivan Boesky

Ivan Frederick Boesky (; March 6, 1937 – May 20, 2024) was a convicted criminal and an American stock trader who was infamous for his prominent role in an insider trading scandal in the mid-1980s. After getting caught he became a government informant and then pleaded guilty, and was fined a record $100 million, and served twenty months in prison.

Trading basics

Ivory trade

The ivory trade is the commercial, often illegal trade in the ivory tusks of the hippopotamus, walrus, narwhal, mammoth, and most commonly, African and Asian elephants.

Trading basics

J. Anthony Forstmann

Julius Anthony Forstmann (May 22, 1938 — January 31, 2023) was an American financier. He is one of the founding partners of Forstmann-Leff & Associates, one of the first hedge funds in the United States, along with Joel B. Leff. He was an original investor in Forstmann Little and Company and he also founded Forstmann and Co., a merchant bank.

Trading basics

J. Christopher Flowers

James Christopher Flowers (born 1957) is an American private equity investor and investment manager focused on the financial services industry. He is a managing director and CEO of J.C. Flowers & Co., and a member of the firm's Management Committee.

Trading basics

J.C. Bradford & Co.

J.C. Bradford & Co. was a Nashville-based investment banking and brokerage firm founded by James Cowdon Bradford Sr. in 1927. The firm was the first from Nashville to buy a seat on the New York Stock Exchange.

Trading basics

J.Crew

J.Crew Group, Inc., is an American multi-brand, multi-channel, specialty retailer. The company offers an assortment of women's, men's, and children's apparel and accessories, including swimwear, outerwear, lounge-wear, bags, sweaters, denim, dresses, suiting, jewelry, and shoes.

Banking

J.P. Morgan & Co.

J.P. Morgan & Co. was an American financial institution specialized in investment banking, asset management and private banking founded by financier J. P. Morgan in 1871. Through a series of mergers and acquisitions, the company is now a subsidiary of JPMorgan Chase, the largest banking institution in the world by market capitalization. The company has been historically referred to as th

Trading basics

Jack Ma

Ma Yun (Chinese: 马云; pinyin: Mǎ Yún; born 10 September 1964), also known as Jack Ma, is a Chinese businessman and philanthropist. He is the founder of the Jack Ma Foundation, and co-founder of Alibaba Group and Yunfeng Capital. He is one of the richest men in China with a net worth of approx US$27.5 billion.

Banking

Jacob Schiff

Jacob Henry Schiff (born Jakob Heinrich Schiff; January 10, 1847 – September 25, 1920) was a Jewish German-born American banker, businessman, and philanthropist. He helped finance the expansion of American railroads, and the Japanese military efforts against Tsarist Russia in the Russo-Japanese War.

Trading basics

Jacuzzi

Jacuzzi is an American private company that manufactures and markets hot tubs, pools, and other bath products. It is best known for the Jacuzzi hydrotherapy products. The company is headquartered in Irvine, California. It is the largest hot tub manufacturer in Europe with eight factories, the largest being in Italy.

Banking

Jagat Seth family

Jagat Seth was a wealthy merchant, banker and moneylender family from Murshidabad in Bengal during the time of the Nawabs of Bengal.

Trading basics

Jahm Najafi

Jamshid Jahm Najafi (born March 1963) is an Iranian-American billionaire businessman. He manages The Najafi Companies, a private equity firm, and is vice chairman of the NBA's Phoenix Suns and McLaren Racing.

Trading basics

Jak Lingko

Jak Lingko or JakLingko (formerly OK OTrip) is a public transport integration program designed to integrate payment and physical connection between transport modes in Jakarta. The integration includes BRT, Commuter rail, Light Metro, MRT, LRT, Airport rail link and local angkot (Mikrotrans).

Trading basics

James Caan (businessman)

James Caan (born Nazim Khan; 28 December 1960) is a British-Pakistani entrepreneur and television personality.

Trading basics

James Coulter (financier)

James Coulter (born December 1, 1959) is an American billionaire businessman. He is the co-founder of private equity firm TPG Inc., originally known as the Texas Pacific Group.

Trading basics

James Goldsmith

Sir James Michael Goldsmith (26 February 1933 – 18 July 1997) was a French-British financier and politician who was a member of the Goldsmith family. His controversial business and finance career led to ongoing clashes with British media, frequently involving litigation or the threat of litigation.

Trading basics

James Hanson, Baron Hanson

James Edward Hanson, Baron Hanson (20 January 1922 – 1 November 2004) was an English industrialist who built his businesses through the process of leveraged buyouts through Hanson plc. Hanson's billion-dollar empire earned him the nickname "Lord Moneybags".

Banking

James Mwangi

James Mwangi (born 1962) is a Kenyan accountant, career banker, businessman, and entrepreneur. He is the current group managing director and group chief executive officer of Equity Group Holdings Plc, the banking conglomerate with one of the largest customer bases on the African continent, over 14 million as of December 2019.

Securities & exchanges

James O'Shaughnessy (investor)

James Patrick O'Shaughnessy (born May 24, 1960) is an American investor and venture capitalist, who is the CEO of O'Shaughnessy Ventures. He is the founder of O'Shaughnessy Asset Management, LLC, an asset management firm that Franklin Templeton later acquired.

Securities & exchanges

James R. Keene

James Robert Keene (February 8, 1838 - January 3, 1913) was a Wall Street stockbroker and a major thoroughbred race horse owner and breeder.

Trading basics

James Stansfeld

Sir James Stansfeld, ( STANSS-feeld; 5 March 1820 – 17 February 1898) was a British Radical and Liberal politician and social reformer who served as Under-Secretary of State for India (1866), Financial Secretary to the Treasury (1869–71) and President of the Poor Law Board (1871) before being appointed the first President of the Local Government Board (1871–74 and 1886).

Trading basics

Jamf

Jamf Holding Corp. is a software company best known for developing Jamf Pro (formerly The Casper Suite), a mobile device management system primarily for macOS, iOS and iPadOS devices.

Trading basics

Jan Leschly

Jan Leschly (born 11 September 1940) is a Danish businessman and former professional tennis player. He was a semifinalist in the men's singles at the 1967 U.S. National Championships and a quarterfinalist in doubles at the 1966 Wimbledon Championships. From 1957 to 1973, he won 18 career titles in singles.

Securities & exchanges

Jane Street Capital

Jane Street Capital is an American electronic market making company headquartered in Manhattan, New York City. It is one of the largest market making firms in the United States along with Virtu and Citadel Securities. It employs approximately 3,000 people across its global offices, and trades across more than twenty countries.

Banking

Janet Fockart

Janet Fockart (died 1596) was a Scottish merchant and moneylender.

Securities & exchanges

Japanese asset price bubble

The Japanese asset price bubble (バブル景気, baburu keiki; lit. 'bubble economy') was an economic bubble in Japan from 1986 to 1991 in which real estate and stock market prices were greatly inflated. In early 1992, this price bubble burst and the country's economy stagnated. The bubble was characterized by rapid acceleration of asset prices and overheated economic activity, as well as an unco

Trading basics

Japanese economic miracle

The Japanese economic miracle (Japanese: 高度経済成長, romanized: Kōdo keizai seichō) refers to a period of economic growth in post–World War II Japan. It generally refers to the period from 1955, around which time the per capita gross national income of the country recovered to pre-war levels, and to the onset of the 1973 oil crisis.

Finance

Japanese financial system

The main elements of Japan's financial system are much the same as those of other major industrialized nations: a commercial banking system, which accepts deposits, extends loans to businesses, and deals in foreign exchange; specialized government-owned financial institutions, which fund various sectors of the domestic economy; securities companies, which provide brokerage services, unde

Fiat currencies

Japanese yen

The yen (Japanese: 円; symbol: ¥; code: JPY) is the official currency of Japan. It is the third-most traded currency in the foreign exchange market, after the United States dollar (USD) and the euro. It is also widely used as a third reserve currency after the USD and the euro.

Banking

Jarvis Lorry

Jarvis Lorry is a character in Charles Dickens' 1859 novel, A Tale of Two Cities.

Securities & exchanges

Jay Clayton

Walter Joseph "Jay" Clayton III (born July 11, 1966) is an American attorney who has served as the 9th director of national intelligence since August 2026. Clayton has additionally served as the White House AI czar since October 2026. He served as the United States attorney for the Southern District of New York from 2025 to 2026 and as the chairman of the Securities and Exchange Commissi

Payments & settlement

Jaywan

Jaywan (Arabic: جيون, lit. 'precious pearl') is an Emirati card payment system wholly owned and operated by Al Etihad Payments (AEP), a subsidiary of the Central Bank of the United Arab Emirates.

Trading basics

JCB (credit card company)

JCB Co., Ltd. (株式会社ジェーシービー, Kabushiki gaisha jē shī bī), formerly Japan Credit Bureau, is a credit card company based in Tokyo, Japan.

Securities & exchanges

Jean-Louis Lévesque

Jean-Louis Lévesque, (April 13, 1911 – December 28, 1994) was a Canadian entrepreneur, thoroughbred racehorse owner, and philanthropist.

Banking

Jean-Pierre Danthine

Jean-Pierre Danthine (born May 16, 1950 in Havelange, Belgium) is a Swiss-Belgian economist and deputy chairman of the Swiss National Bank from 2012 to 2015. He has published numerous articles and books.

Securities & exchanges

Jeff Yass

Jeffrey Steven Yass (born July 1958) is an American billionaire businessman. According to Forbes, Yass had a net worth of US$77.8 billion as of September 2026, up from $27.6 billion in April 2024. The richest man in Pennsylvania, he is also the 25th richest in the world. He is a registered Libertarian who gives money to conservative super PACs including Club for Growth Action and the Pro

Finance

Jeffrey Frankel

Jeffrey Alexander "Jeff" Frankel (born November 5, 1952, in San Francisco, California) is an international macroeconomist. He works as the James W. Harpel Professor of Capital Formation and Growth at Harvard Kennedy School.

Finance

Jeffrey Sachs

Jeffrey David Sachs ( SAKS; born November 5, 1954) is an American economist and public policy analyst. He is a professor at Columbia University, at which he was formerly director of The Earth Institute and currently director of the Center for Sustainable Development.

Fiat currencies

Jelle Zijlstra

Jelle Zijlstra (also spelled Zylstra; Dutch pronunciation: [ˈjɛlə ˈzɛilstraː]; 27 August 1918 – 23 December 2001) was a Dutch politician and economist who served as Prime Minister of the Netherlands from 22 November 1966 until 5 April 1967. He was a member of the Anti-Revolutionary Party (ARP).

Finance

Jelly roll (options)

A jelly roll, or simply a roll, is an options trading strategy that captures the cost of carry of the underlying asset while remaining otherwise neutral. It is often used to take a position on dividends or interest rates, or to profit from mispriced calendar spreads.

Fiat currencies

Jem Bendell

Jem Bendell is an emeritus professor of sustainability leadership with the University of Cumbria in the UK. He is best known for originating in 2018 the concept of "deep adaptation" for individuals and communities anticipating (or already coping with) the consequences of ongoing climate change. In 2019 he founded the Deep Adaptation Forum to support peer-to-peer communications in develop

Finance

Jensen's alpha

In finance, Jensen's alpha (or Jensen's Performance Index, ex-post alpha) is used to determine the abnormal return of a security or portfolio of securities over the theoretical expected return. It is a version of the standard alpha based on a theoretical performance instead of a market index.

Trading basics

Jeremy Coller

Jeremy Coller (born 17 May 1958) is a British businessman and philanthropist. He is the founder of Coller Capital and, since its acquisition by EQT AB in August 2026, Head and Chief Investment Officer of Coller EQT.

Trading basics

Jeremy Hosking

Jeremy John Hosking (born 20 July 1958) is a British businessman and political donor. Ranked number 351 in the Sunday Times Rich List, with a net worth of £375 million, he is a shareholder in Crystal Palace and a noted railway enthusiast. He has donated heavily to the Reclaim Party, being the sole donor in the 2023 financial year.

Trading basics

Jerome Kohlberg Jr.

Jerome Kohlberg Jr. (July 10, 1925 – July 30, 2015) was an American businessman and investor. He was an early pioneer in the private equity and leveraged buyout industries, founding private equity firm Kohlberg Kravis Roberts & Co. (KKR & Co.) and later Kohlberg & Company.

Securities & exchanges

Jerry Markham

Jerry W. Markham is a professor at the Florida International University College of Law, and a legal scholar on business organizations and securities regulation in the United States. He has been quoted or cited as an expert on the regulation of financial and commodities markets in a wide variety of news sources, and his three-volume collection, A Financial History of the United States, ha

Trading basics

Jersey pound

The pound (French: Livre de Jersey, Jèrriais: Louis d'Jèrri; abbreviation: JEP; sign: £) is the currency of Jersey. Jersey is in currency union with the United Kingdom, and the Jersey pound is not a separate currency but is an issue of banknotes and coins by the States of Jersey denominated in sterling, in a similar way to the banknotes issued in Scotland and Northern Ireland (see Bankno

Securities & exchanges

Jim Cramer

James Joseph Cramer (born February 10, 1955) is an American television personality, author, entertainer and former hedge fund manager. He is the host of Mad Money on CNBC and an anchor on Squawk on the Street. After graduating from Harvard College and Harvard Law School, he worked for Goldman Sachs and then became a hedge fund manager, founder and senior partner of Cramer Berkowitz.

Trading basics

Jim Grenon

James Terrence Omer Grenon is a Canadian-New Zealand private equity investor and billionaire, who is the founder of Canadian investment company Tom Capital Management and director of the media company New Zealand Media and Entertainment. He also formerly owned the alternative media publications Centrist and NZ News Essentials (NZNE).