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A pump-and-dump is a securities-fraud scheme: promoters use false or misleading claims to spur demand for a stock, then sell their own shares while buyers are attracted by the promotion. When the promotion fades and selling takes over, the price typically falls, putting late buyers at risk of losses. A stock tip or price decline alone does not prove a pump-and-dump.
How does a pump-and-dump work?
The name describes the sequence. “Pump” means promoting a stock to increase buying demand and push its price higher. “Dump” means promoters sell their holdings into the demand generated by that promotion. Once the hype ends, the price typically drops, and investors who bought during the promotion may be left with shares worth less than they paid.
- Misleading promotion: Promoters circulate claims intended to make a stock look unusually promising.
- Induced demand: People buy in response to the pitch, which can contribute to a rising price.
- Promoter sales: Promoters sell shares into the buying demand.
- Promotion ends: When the publicity and buying pressure fade, the price typically falls.
The SEC’s pump-and-dump explanation describes this basic pattern. It is the deceptive promotion and associated selling—not simply a stock rising and later falling—that matters.
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Where do the promotions appear?
Stock pitches can show up on social media, in emails, chat rooms, investment websites, newsletters, online advertisements, message boards, and other media. The channel alone is not proof of fraud: a post, newsletter, or enthusiastic recommendation is not automatically a pump-and-dump.
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Promoters may use urgency or claim to have “inside” information about a positive development to pressure people into buying before they investigate. The SEC’s online stock-scam guidance describes warning signs such as glowing claims, hype in chat rooms or message boards, and newsletters presented as unbiased recommendations. These are reasons to look more closely, not a checklist that establishes fraud by itself.
Are pump-and-dump schemes limited to microcap stocks?
No. Microcap stocks may be especially vulnerable when reliable public information is limited, but pump-and-dump schemes are not confined to microcaps. The SEC’s February 6, 2026 alert on social-media stock-tip scams makes that distinction and warns about deceptive recommendations and impersonation risks.
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What should you do when you receive a stock tip?
- Consider who is making the recommendation. Be cautious with unsolicited pitches and claims of privileged information.
- Research the opportunity. Look for reliable information beyond the promotional message.
- Verify claims independently. Do not treat a confident post, email, or newsletter as confirmation.
- Do not let urgency replace investigation. The SEC advises against making an investment decision solely because of a social-media recommendation or pressure to act quickly.
In a June 12, 2013 press release, Lori Schock, then Director of the SEC’s Office of Investor Education and Advocacy, said: “Investors should always be wary of unsolicited investment offers in the form of an e-mail from a stranger.” The quotation is from that 2013 release, not a new statement.
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No. Enthusiastic commentary, a sharp price move, or a promoter’s financial interest does not, on its own, establish a pump-and-dump. Relevant questions include whether claims were false or misleading, what the promoter stood to gain, whether the promoter sold shares, and whether compensation was disclosed. The SEC has brought cases involving undisclosed compensation for stock promotion, but each situation depends on its facts.
This article explains the investor-education meaning of the term; it does not determine whether a particular post, company, promoter, transaction, or investor’s conduct violates securities law. The SEC’s older pump-scam page says it is investor-service material rather than a legal interpretation or policy statement, and directs readers seeking a legal application to consult an attorney specializing in securities law.
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