quintile

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noun quin·tile \ˈkwin-ˌtī(-ə)l\
Updated on: 26 Jul 2017

Definition of quintile

  1. :  any of the four values that divide the items of a frequency distribution into five classes with each containing one fifth of the total population; also :  any one of the five classes

Recent Examples of quintile from the Web

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Breaking Down the Meaning of quintile

Many people have a deep interest in statistics about themselves, whether the information provided is about income, ice-cream consumption, or trash production. And any such rating can be divided into fifths, or quintiles. The fifth or lowest quintile would include the 20 percent of the population who make the least money or eat the least ice cream or generate the least trash, and the first quintile would include the 20 percent who make, eat, or generate the most.

Origin and Etymology of quintile

Latin quintus + English 2-ile


Financial Definition of QUINTILE

quintile

What It Is

A quintile is one of five equal parts.

How It Works

For example, if we were to look at all of the closing prices for Company XYZ stock for every day in the last year, the top 20% of those prices would represent the upper quintile of the data. The bottom 20% of those prices would represent the lower quintile of the data. There would be three quintiles in between the upper and lower quintiles. The average of all the stock prices typically falls right in the middle, between the second and fourth quintiles.


Why It Matters

Quintiles are crucial for studying economic data, income data, stock data, and virtually any other kind of financial information. By breaking things into quintiles, an analyst can make a variety of inferences about the data and how the observed item behaves.

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