Pump and Dump
A pump and dump is a fraud where promoters buy a cheap, thinly traded asset, hype it with false or misleading claims to push the price up, then sell their holdings to the buyers they attracted. The price usually collapses afterwards.
A stock nobody had heard of suddenly appears in your messages, chats and social feeds, with promises of a big announcement coming soon. The price is already flying. That is the classic setting of a pump and dump — one of the oldest frauds in markets, now spreading through social media and crypto. This entry explains how the scheme works, why it targets small assets and how to recognise it.
- Category
- Market Structure
- Reading time
- 4 min
- Also called
- Pump-and-dump scheme, Pump and dump scam, Ramp and dump
- Updated
Pump and dump in plain words
These schemes have three parts: the setup, where fraudsters pick a target; the pump, where they push the price up; and the dump, where they sell quickly and cash out.1
Fraudsters have long targeted low-priced microcap stocks on over-the-counter markets, and increasingly low-priced stocks on national exchanges too.1
Heavily promoted small companies are often discussed on social media, message boards and chat rooms, where hype can spread fast.2
How a pump and dump works, step by step
Pick a target
A cheap, thinly traded stock or token. See Penny Stocks.
Accumulate quietly
Owning a large share makes the price easier to move.
Promote it hard
Social media, texts, emails and "investment clubs".
Claim big news
A breakthrough or major contract is "imminent".
Dump into the demand
Sell to the late buyers at inflated prices.
Collapse
Without the hype, the price falls back sharply.
Worked examples
Example 1 — The promoter's profit
Paid by late buyersPromoters buy 2 million shares at $0.50, hype the stock to $2.00, and sell everything.
| Cost | 2m × $0.50 = $1m |
| Sale | 2m × $2.00 = $4m |
| Profit | $3m |
Accumulating a large portion of the shares lets fraudsters push the price artificially higher.1
Example 2 — The late buyer
−$7,000You buy 5,000 shares at $1.80 near the top. After the dump the price falls to $0.40.
| Cost | 5,000 × $1.80 = $9,000 |
| Value | 5,000 × $0.40 = $2,000 |
| Loss | −$7,000 (−78%) |
Manias usually end in a contraction, when wide-scale selling drives the price sharply lower.2
Example 3 — Spotting the signs
Walk awayAn unsolicited text invites you to a chat group promoting a tiny company with "huge news coming".
| Unsolicited contact | Red flag |
| Urgent, imminent news | Red flag |
| Low-priced, little-known stock | Red flag |
Fraudsters use unsolicited messages and encrypted group chats to promote and manipulate a target stock.1
Pump and dump vs a genuine rally
| Aspect | Pump and dump | Genuine rally |
|---|---|---|
| Driver | Promotion and hype | News, earnings, fundamentals |
| Typical target | Tiny, thinly traded | Any size |
| Who sells | The promoters, quickly | A mix of investors |
| Aftermath | Sharp collapse | May hold its gains |
Where pump and dumps appear
Microcap stocks
Low-priced shares with little public information.
Crypto tokens
New, illiquid tokens hyped in group chats. See Memecoins.
Social media
Forums, chat rooms and paid influencers. See Fear of Missing Out.
Fake investment clubs
Groups that tell members when to buy.
Advantages and disadvantages
Advantages
- Knowing the pattern helps you avoid losses.
- Red flags are fairly consistent.
- Regulators pursue the organisers.
Disadvantages
- Late buyers usually lose most of their money.
- Schemes move faster through social media.
- Recovering losses is rare.
Going deeper
Read as far as you need. Each level builds on the one before it.
Why small stocks
Beginner
Thinly traded, low-priced assets need relatively little money to move, which is why they are the favourite targets. See Liquidity.
Ramp and dump
Intermediate
Slower versions, sometimes called ramp-and-dump schemes, use more deliberate promotion in forums, chat rooms and social media threads.1
Momentum and noise traders
Advanced
The schemes exploit momentum investors, who expect big rises to continue, and noise traders, who buy without looking at fundamental data.2 See Momentum Trading.
Common mistakes
Trusting unsolicited tips
Strangers rarely share real opportunities.
Buying because it's rising
A fast rise is the bait, not the proof.
Ignoring liquidity
You may not be able to sell when it collapses.
Believing "imminent" news
The news often never arrives.
Check your understanding
Test yourself before moving on. Each answer comes with an explanation.
Key points to remember
- A pump and dump inflates a price with hype, then sells into it.
- Targets are cheap, thinly traded stocks or tokens.
- Promotion now runs through social media and group chats.
- Late buyers take the losses when it collapses.
- Unsolicited tips and "imminent news" are red flags.
Frequently asked questions
Is a pump and dump illegal?
Do pump and dumps happen in crypto?
Can I profit by getting in early?
Further learning
- Penny Stocks
The usual target.
- Spoofing, Layering and Wash Trading
The wider family of abuses.
- Fear of Missing Out
The emotion the scheme exploits.
- Liquidity
Why thin markets are easy to move.
Sources
This article is written in our own words. The sources below support the specific facts, rules and figures marked with a number in the text. Links open the original publisher’s page.
Educational content, not financial advice. Examples use hypothetical prices and simplified costs; actual fees, margin rules and regulations vary by broker, market and country. We are not affiliated with any publisher linked above. Last reviewed . Report an error or request a source credit.