gainer

American  

[gey-ner] / ˈgeɪ nər /

noun

1. a person or thing that gains.

2. full gainer.

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gainer British  

/ ˈɡeɪnə /

noun

1. a person or thing that gains

2. Also called: full gainer.  a type of dive in which the diver leaves the board facing forward and completes a full backward somersault to enter the water feet first with his back to the diving board Compare half gainer

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Other Word Forms

• pregainer noun

Etymology

Origin of gainer

First recorded in 1530–40; gain ¹ + -er ¹

Example Sentences

The S&P 500’s technology sector was the day’s biggest gainer, adding 1.8%, in what was a mixed day across sectors.

From The Wall Street Journal • Feb. 25, 2026

In the past decade, Stryker has outgrown its peers by 2.5 percentage points a year, so it is a share gainer.

From Barron's • Jan. 16, 2026

But Nvidia’s stock has been a strong gainer for the year, up 30%.

From MarketWatch • Dec. 1, 2025

It’s still the S&P 500’s biggest gainer so far this year, rising about 40%.

From Seattle Times • Feb. 20, 2024

He did the same lousy old half gainer all day long.

From "The Catcher in the Rye" by J. D. Salinger