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Statistical composite that measures changes in the economy or in financial markets, often expressed in percentage changes from a base year or from the previous month. Indexes measure the ups and downs of stock, bond, and some commodities markets, in terms of market prices and weighting of companies in the index.


A statistical measure of the value of a certain portfolio of securities. The portfolio may be for a certain class of security, a certain industry, or may include the most important securities in a given market, among other options. The value of an index increases when the aggregate value of the underlying securities increases, and decreases when the aggregate value decreases. An index may track stocks, bonds, mutual funds, and any other security or investment vehicle, including other indices. An index's value may be weighted; for example, securities with higher prices or greater market capitalization may affect the index's value more than others. One of the most prominent examples of an index is the Dow Jones Industrial Average, which is weighted for price and tracks 30 stocks important in American markets.


The relative value of a variable in comparison with itself on a different date. Many security price indicators such as the Standard & Poor's series and the New York Stock Exchange series are constructed as indexes. Also called stock index. See also base period.


To adjust a variable by a selected measure of relative value. For example, it has been proposed that an investor's basis on a security be indexed for changes in consumer prices so that only real increases in value will be taxed. Also called tax indexing. See also subindex.


An index reports changes up or down, usually expressed as points and as a percentage, in a specific financial market, in a number of related markets, or in an economy as a whole.

Each index -- and there are a large number of them -- measures the market or economy it tracks from a specific starting point. That point might be as recent as the previous day or many years in the past.

For those reasons, indexes are often used as performance benchmarks against which to measure the return of investments that resemble those tracked by the index.

A market index may be calculated arithmetically or geometrically. That's one reason two indexes tracking similar markets may report different results. Further, some indexes are weighted and others are not.

Weighting means giving more significance to some elements in the index than to others. For example, a market capitalization weighted index is more influenced by price changes in the stock of its largest companies than by price changes in the stock of its smaller companies.


(1) A statistical indicator that measures changes in the economy in general or in particular areas.An example is the cost-of-living index.(2) A reference point against which measurements are taken for purposes of making future adjustments.An adjustable-rate mortgage might begin with an interest rate of 6 percent and provide that it will increase or decrease in a like percentage as the increase or decrease between today's quoted price for 10-year U.S.Treasury bonds and the price on the loan's annual anniversary date.We would say that 10-year T-bonds are the index.

Some leading loan indices include

• Wall Street Journal prime
• Federal discount rate
• Fed funds rate
• 11th District Cost of Funds
• 10-year Treasuries
• One-year LIBOR

References in periodicals archive ?
Level of cognitive function was associated with and predicted 2 percent of the variance in age-adjusted mean DGI scores (p < 0.
Proponents of the original DGI AR-15 system argue that it has more than a half-century of proven battle experience behind it, that it is a simpler design having fewer moving parts and fewer nonlinear stress points on the bolt-carrier, that it is therefore inherently more accurate.
We are excited to partner with the other DGI members to build a completely open data governance foundation that meets enterprise requirements.
Le communique de la DGI precise, par ailleurs, que les vehicules utilitaires [beaucoup moins que] pick-up [beaucoup plus grand que] a moteur gasoil appartenant a des personnes physiques sont passibles de la taxe au tarif des vehicules a essence.
The DGI Group of Companies began construction of the plant in August 2004 and completed the multi-million-dollar project in less than 12 months.
Richards Barry Joyce & Partners represented Brookwood with respect to the leasing, while Potpourri and DGI were represented by Neil Ross and Greg Zais of Jones Lang LaSalle and Sam Oddo of Oddo, Inc.
At the same time, DGI has substantially diluted the Class A Shares through granting stock options, primarily to Don Nikolaus and his friends on the Board and in management.
Une partie de ces dettes represente un cumul que la DGI traEne depuis 20 ans sans pouvoir le recouvrer, selon son premier responsable.
An announcement was made regaerding the creation of a Joint Commission of recovery of debts due to the State, which will be coordinated by Ronald Decembre and composed of representatives of the DGI, of the Fiscal Directorate, of Ministry of Finance and of private sector as an observer to be a witness in the case processing, on a background of controversy, following the measures taken by the Directorate General of Taxes (DGI) against 66 taxpayers, Ronald Decembre, the Secretary of State for tax reform and Jean Baptiste Clark Neptune, the Director General of the DGI, in a spirit of transparency in the processing of case.
The new DGI organization will provide Advisory Services to business and government clients in order to be the preeminent National Security Advisory Organization.
As of November 1, 2013, DGI had 20,681,588 outstanding Class A shares, with 2,068,158 total votes, and 5,576,775 outstanding Class B shares, with 5,576,775 total votes, according to DGI's Quarterly Report on Form 10-Q filed on November 7, 2013.
327 inscrits) sont des societes qui n'ont pas encore procede au depot legal de leurs comptes sociaux au titre des exercices 2008 a 2011, a precise une source de la DGI a l'APS.