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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.

Wall Street’s stamp of legitimacy fuels suspected pump-and-dump schemes.

From MarketWatch • Jan. 30, 2026

The SEC and Finra are investigating China-based offerings and underwriters, while the FBI reported a 300% increase in pump-and-dump fraud complaints.

From Barron's • Dec. 12, 2025

That's not to say the SEC will stop prosecuting crypto scams like pump-and-dump schemes, but the number of enforcements might lower, in part because of regulatory clarity and rules that give more leeway to issuers.

From Salon • Jan. 1, 2025

Yes, a straight-up pump-and-dump scheme “to make sure the TRX price is at some level Justin wants.”

From Slate • Dec. 3, 2024

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

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