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pump-and-dump

British

noun

the practice of buying shares, generating favourable publicity about them, especially on the internet, then selling them when the price accordingly rises

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

The White House, in response to those remarks, said Madden should “stick to pontificating about pump-and-dump fraud schemes instead of international trade,” as MarketWatch reported last year.

From MarketWatch • Feb. 25, 2026

Regulators are investigating small-capitalization IPOs on Nasdaq due to concerns over potential pump-and-dump frauds.

From Barron's • Dec. 30, 2025

In fact, a crypto pump-and-dump scheme is exactly what he's been accused of in other countries before making a timely escape, as reported earlier this month by the Verge.

From Salon • Mar. 23, 2023

Some investors harmed by the pump-and-dump schemes appear to be victims of an evolving social media scam called "pig butchering," Finra said.

From Reuters • Nov. 17, 2022

Because you know what tends to get pumped in pump-and-dump schemes?

From Slate • Oct. 3, 2022

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023