In mathematics, specifically group theory, the index of a subgroup H in a group G is the number of left cosets of H in G, or equivalently, the number of...

Banach algebra can be associated with a group called its abstract index group. Let A be a Banach algebra and G the group of invertible elements in A. The set...

In optics, the refractive index (or refraction index) of an optical medium is the ratio of the apparent speed of light in the air or vacuum to the speed...

The Democracy Index published by the Economist Group is an index measuring the quality of democracy across the world. This quantitative and comparative...

currently operates as part of the Nasdaq-listed financial services group StoneX. City Index serves retail clients globally, holding regulatory licenses from...

The FBI Indexes, or Index List, was a system used to track American citizens and other people by the Federal Bureau of Investigation (FBI) before the...

Frank Russell Company in 1984. The index is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group (LSEG). The Russell 2000 is by far...

The glycemic (glycaemic) index (GI; /ɡlaɪˈsiːmɪk/) is a number from 0 to 100 assigned to a food, with pure glucose arbitrarily given the value of 100...

The index, which was launched on January 1, 1984, is maintained by FTSE Russell, a subsidiary of the United Kingdom-based London Stock Exchange Group. The...

(UNDP) compiles the Human Development Index (HDI) of 193 nations in the annual Human Development Report. The index considers the health, education, income...

Index, also called the FTSE 100 Index, FTSE 100, FTSE, or, informally, the "Footsie" /ˈfʊtsi/, is the United Kingdom's best-known stock market index of...

expansions by an international group of scholars: Originally published in German by Finnish folklorist Antti Aarne (1910), the index was translated into English...

exchange. The index was administered by Standard & Poor's from its inception until June 2009, when this responsibility was passed to FTSE Group, which is...

The Corruption Perceptions Index (CPI) is an index that scores and ranks countries by their perceived levels of public sector corruption, as assessed...

A diversity index is a method of measuring how many different types (e.g. species) there are in a dataset (e.g. a community). Diversity indices are statistical...

A price index (plural: "price indices" or "price indexes") is a normalized average (typically a weighted average) of price relatives for a given class...

of a scholarly journal as well as a group of scientists, such as a department or university or country. The index was suggested in 2005 by Jorge E. Hirsch...

as Henley & Partners Visa Restrictions Index and was updated to Henley Passport Index in January 2018. The index annually ranks 199 passports of the world...

Stock Exchange 250 Index, also called the FTSE 250 Index, FTSE 250, or, informally, the "Footsie 250" /ˈfʊtsi/, is a stock market index that consists of...

underlying stocks included in the index, sometimes referred to as the "coverage". The underlying stocks are typically grouped together based on their underlying...

An air quality index (AQI) is an indicator developed by government agencies to communicate to the public how polluted the air currently is or how polluted...

Exchange and is a constituent of the FTSE 250 Index. IG Group, originally founded as IG Index (Investors Gold Index), was founded in 1974 by British financier...

Average (DJIA), Dow Jones, or simply the Dow (/ˈdaʊ/), is a stock market index of 30 prominent companies listed on stock exchanges in the United States...

Composite Index, the 425 Stock Industrial Index, the 50 Stock Utility Index, and the 25 Stock Rail Index. On August 31, 1976, The Vanguard Group offered...

the Madrid Stock Exchange. It is a constituent of the FTSE 100 Index and IBEX 35 Index. British Airways and Iberia signed a preliminary merger agreement...

Equity Index Series "The Vanguard Group, Inc.: Private Company Information". Bloomberg. Retrieved December 22, 2019. "About Vanguard". The Vanguard Group, Inc...

mathematics a cycle index is a polynomial in several variables which is structured in such a way that information about how a group of permutations acts...

In economics, statistics, and finance, an index is a number that measures how a group of related data points—like prices, company performance, productivity...

The Hang Seng Index (HSI) is a market-capitalisation-weighted stock market index in Hong Kong adjusted for free float. It tracks and records daily changes...

The index of dissimilarity is a demographic measure of the evenness with which two groups are distributed across component geographic areas that make...