Crypto pump-and-dump schemes: how they work, fake volume and how to avoid them

A small coin nobody had heard of jumps 300% in minutes. A Telegram group is celebrating, an account on X says it’s “going to the moon”, and a news-style article claims a famous investor is about to buy in. By the time you’ve decided to join, the price is already collapsing.

That is a pump and dump, one of the oldest frauds in finance, now run with chat apps, trading bots and crypto tokens that can be created in minutes. This guide explains how the schemes work, how fake trading volume adds to the illusion, what US regulators have charged, and how to avoid being the person left holding the bag.

An old scam with new tools

The CFTC traces pump and dumps back to “boiler room” frauds that pushed penny stocks with false promises of breakthroughs or mergers. As demand grew in thinly traded shares, the price rose; the boiler room then dumped its shares, the price crashed and investors were left with nearly worthless stock.

In February 2018 the CFTC issued its first customer advisory on the crypto version. The same fraud, it said, now uses little-known cryptocurrencies, coins and tokens. Thanks to messaging apps and message boards, organizers don’t need a boiler room: they organize anonymously and hype the coins on social media.

The joint SEC, NASAA and FINRA investor article describes the basic pattern: promoters “pump” up the price by spreading positive but false information online, through ads, fake news coverage or social media promotions; investors buy and drive the price up; the promoters then “dump” their holdings before the hype ends, and the remaining investors lose most of their money.

How a crypto pump works, step by step

The CFTC describes the mechanics of a typical group pump:

1. The group. Some pump-and-dump chat rooms have thousands of members, who follow announcements about when the next pump will happen.
2. The countdown. On the day, the organizer posts countdowns such as “15 mins left before the pump! Get ready to buy”, and urges members to spread the link so outsiders join in.
3. The coin. The next message names the coin and the trading platform.
4. The pump. Members rush to buy, and the price spikes.
5. The dump. It can be over in minutes. In the CFTC’s example, the whole buy-and-sell cycle took less than eight minutes.

The CFTC is clear about who wins: it’s usually the people pulling the strings who get out first and make the most, leaving everyone else scrambling to sell before losing their investment.

Some pumps rely on fake news instead of a countdown. The CFTC mentions false stories about a famous technology leader or investor planning to pour millions into a little-known coin, or about major retailers, banks or card companies partnering with a particular cryptocurrency, with posts urging readers to buy now.

Fake volume: wash trading and “market manipulation as a service”

Hype isn’t the only way to fake demand. A token that appears to trade millions of dollars a day looks popular and liquid, even if almost all of that trading is fake.

In October 2024 the SEC announced fraud charges against several self-described crypto market makers. According to the SEC’s complaints:

• Token promoters hired the firms to provide what the SEC called “market-manipulation-as-a-service”: generating artificial trading volume, or manipulating prices, for tokens sold to retail investors.
• One firm allegedly did this through self-trading, commonly called “wash trading”, on popular trading platforms, using an algorithm, or bot, that at times generated quadrillions of transactions and billions of dollars of artificial trading volume each day.
• The tokens involved included Saitama Inu and SaitaRealty, and NexFundAI, a crypto asset created at the direction of the FBI as part of a parallel investigation into market manipulation in the crypto industry.

These were the SEC’s allegations, and the US Attorney’s Office in Massachusetts announced parallel criminal cases. The lesson for ordinary buyers holds either way: trading volume on a small token can be manufactured, and a busy chart is not evidence that real people want to buy.

Why pumps keep happening

• Anonymity. The CFTC says these schemes continue because they are mostly anonymous.
• Thin markets. The CFTC warns that pumps happen in thinly traded or new “alternative” coins and tokens, where a burst of coordinated buying can move the price.
• Many trading pairs. Pumps typically happen on platforms offering a wide range of coin pairings.
• New traders. The growing number of new crypto traders increases the number of potential victims, and of unwitting participants.
• New tokens are easy to create. Memecoins can be launched quickly and cheaply. See memecoins explained.

Warning signs

• A coin is recommended in a chat group, social media post or direct message, especially with a countdown or a “buy now” deadline.
• Sudden price spikes in a small coin you’d never heard of.
• News-style stories about a celebrity, famous investor or big company backing a little-known token, that you can’t confirm on the company’s own website.
• Promises of guaranteed profits or “no risk”.
• Huge reported volume on a brand-new or tiny token.
• Pressure to recruit others or share links.

How to protect yourself

The CFTC’s advice is short:

• Don’t buy a coin because of a single tip, especially one from social media.
• Don’t believe ads or websites that promise quick wealth from particular coins.
• Don’t take part in pump-and-dump trades. Market manipulation is against the law, and many participants end up losing money.
• There’s no such thing as a guaranteed investment or trading strategy. If someone says there’s no risk of losing money, don’t invest.
• Research coins, tokens and the people behind them, to separate hype from facts.

Practical extras:

• Prefer platforms that are registered where you live. See how to check a crypto exchange is registered.
• Check whether a token can actually be sold: some scam tokens can be bought but not sold.
• Never move money you can’t afford to lose into small, speculative coins.

What the law says

• United States: the CFTC says it has general anti-fraud and anti-manipulation enforcement authority over virtual currency cash markets as a commodity in interstate commerce, even though its regulatory oversight of those markets is limited. The SEC brings cases where tokens are offered and sold as securities.
• United Kingdom: under the FCA’s new cryptoasset regime, the Market Abuse Regime for Cryptoassets will prohibit insider dealing, unlawful disclosure of inside information and market manipulation. The wider regime applies from 25 October 2027.

If you’ve been caught in a pump

• Report it. The CFTC takes complaints at CFTC.gov/Complaint, and it runs a whistleblower program: original information leading to a successful enforcement action with sanctions of $1 million or more can earn an award of 10% to 30%. In the UK, report to Report Fraud and the FCA; in Canada, to the Canadian Anti-Fraud Centre. See crypto scams and where to report them.
• Keep records of what you bought, when and where, and any messages from the group.
• Check the tax side. Selling at a loss may create a capital loss. See crypto tax-loss harvesting.

For related reading, see AI crypto trading bot scams and crypto order types.