quintile

[kwin-til, -tahyl]

noun

1. Statistics.,  a quantile for the special case of five equal proportions.

2. Astrology.,  a quintile aspect.

adjective

1. Astrology.,  of or relating to the aspect of two heavenly bodies that are one fifth of the zodiac, or 72°, apart.

quintile

/ ˈkwɪntaɪl /

noun

1. an aspect of 72° between two heavenly bodies

2. a fifth part of a distribution

Word History and Origins

Origin of quintile¹

1600–10; < Latin quīnt ( us ) fifth + -ile (as in quartile )

Word History and Origins

Origin of quintile¹

C17: from Latin quintus fifth

Example Sentences

“In 2022 the cost of inflation for the lowest income quintile amounted to 12.28% of their current income, compared with 5.69% for the highest quintile,” the economists wrote.

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Its 10-year average annual return of 9.4% places it in the top quintile among similar funds in Morningstar’s database—yet another point of confirmation that index funds beat most active ones.

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High-dividend stocks in the S&P 500’s top quintile, yielding 4.5%, showed 0.8 beta, indicating less volatility during market downturns.

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“Since 1990, the worst performing quintile of Russell 3000 constituents in January through October of the respective year has shown a tendency to outperform during November as incremental selling pressure is alleviated — bouncing 2.7% on average,” says Evercore.

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The analysis also found that Americans in the bottom 60% of households by income would see little to no changes in their taxes paid, while Americans in the fourth quintile of income would see a modest decrease in federal taxes paid.

Read more on Salon