What is a pump and dump?

Who’s selling when everyone in a group is shouting “the big rally is coming”?

In a pump and dump, the organizers have usually bought a cryptocurrency or token in advance. They then whip up excitement through social media, messaging groups or paid promotions, often with fake news and promises of profit. The coordinated buying and the people who get swept up push the price higher: this is the artificial inflation phase, the pump.

Once enough new buyers show up, the organizers sell their own coins. That’s the dump, the mass sell-off. The selling pressure, combined with fading interest, can send the price down sharply.

Think of a merchant who has filled his warehouse with a product and spreads the word that it will soon be hard to find. People rush to buy it at higher prices while he empties his warehouse. In crypto, the same logic can play out very quickly.

Why it matters

Coins with low liquidity, i.e. little capacity to trade without a big change in price, are more vulnerable. Relatively few purchases can produce a spectacular rally, without anything meaningful having changed in the project.

Latecomers may see a profit on screen, yet there may not be enough buyers for them to sell at the displayed price. The price on the chart doesn’t guarantee the execution price of a trade.

What to watch out for

Groups that announce a specific time for a “group buy”, promises of guaranteed returns and promotions that demand an immediate decision are serious red flags. Even inside such a group, the admins may have bought before telling the rest of the members.

We find it useful to separate a project’s real progress from the noise around its price. The token distribution, the available liquidity and the source of a news item give more context than a string of enthusiastic posts.

That said, not every sharp rise and fall is a pump and dump. To call it such a scheme, you need evidence of manipulation, not just a dramatic chart.