How to Spot a Crypto Pump and Dump: The Market Signals That Show Up First

A pump and dump is a coordinated effort to push a token's price up so that the organisers can sell to the buyers the rise attracts. It is among the oldest forms of market manipulation, and crypto's thin, lightly supervised small-cap markets suit it well.

The schemes vary in detail but the sequence is consistent, and parts of it are visible in public data.

The four stages

1. Accumulation. The organisers buy quietly while the price is low and nobody is watching, often across many wallets.
2. The pump. Buying is concentrated into a short window and promoted hard: group chats, paid posts, countdowns. The chart turns vertical.
3. Distribution. Outsiders see the move and buy. The organisers sell to them. From the outside this stage still looks like a rally.
4. The dump. Once the organisers are out, buying support is gone and the price falls, usually faster than it rose.

In organised "pump groups" the members are often the target themselves: the organisers buy before announcing the coin and sell into their own members' orders.

Signals in the market data

• A sharp move on outsized volume in a small token. A price that jumps by a large percentage in a day on volume many times the token's norm.
• Volume large relative to market cap. A day's trading that approaches or exceeds the whole market cap means the supply is changing hands at an unusual rate. See market cap vs liquidity vs volume.
• No identifiable cause. No listing, release, partnership or wider market move that would explain it.
• Thin liquidity. The less depth there is, the less money it takes to move the price.

Signals on-chain

• Concentrated supply. A pump is far easier when a few wallets hold most of the tokens, because there is little independent supply to sell into the rise. Our guide to reading top-10 holder figures explains how to measure it.
• A small float. See low float, high FDV.
• Large wallets sending tokens to exchanges during or just after the rise.
• Clusters of wallets funded from one source shortly before the move.

Signals around the token

• Urgency: countdowns, "last chance", guaranteed multiples.
• A sudden wave of near-identical posts from unrelated-looking accounts.
• Promoters who do not disclose that they hold the token or were paid.
• Pressure to buy before you have had time to look anything up.

What the data can and cannot establish

This distinction is central to how FraudCoins works. We can measure that a token moved a certain percentage in 24 hours on volume equal to a certain share of its market cap, and that its ten largest private wallets hold a certain share of supply. We publish those as measurements. We cannot observe who traded, whether they acted together, or why, so we do not say that a named token was pumped and dumped. The same pattern of numbers fits an organised scheme and an ordinary speculative spike.

For you as a buyer the practical conclusion is the same in both cases: a small token that has just gone vertical on heavy volume, with concentrated holders and thin liquidity, is one where late buyers carry most of the risk.

Before you buy something that is moving fast

1. Wait. A real opportunity survives an hour of checking; a scheme depends on you not taking it.
2. Find the cause of the move. If there is none, treat that as information.
3. Compare volume, market cap and liquidity.
4. Check the holders with the token holder checker.
5. Check what the contract lets its owner do: token owner privileges.

A related pattern, where the price is held up instead of pushed up, is covered in the funding-drain scam.