pump-and-dump

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pump-and-dump

n
(Stock Exchange) the practice of buying shares, generating favourable publicity about them, especially on the internet, then selling them when the price accordingly rises
References in periodicals archive ?
In reality, it is alleged Knox, through Wintercap, helped facilitate massive pump and dump schemes and other fraudulent activities.
The first pump and dump occurred between approximately May and August of 2013.
If you are in a pump and dump scam, that is right where the pumpers want you, and they are ready to leave you holding the bag.