Pump, dump, and the Telegram channel: how the 2010 boiler room moved to your messaging app
The pump-and-dump hasn't changed since 2010. The boiler room of cold calls has moved to Telegram, Discord and TikTok. Recognise the structure.
The pump and dump scheme has not changed since the boiler room era. The phones and the rooms are mostly gone. The trade itself is not.
When Ian Lyall described the boiler room operation in 2010, the picture was vivid and concrete. A bank of phones in a windowless office. A script next to each handset. A roomful of confident voices working their way down a list of names bought from somewhere they would rather you did not ask. The shares being pushed were almost always thinly traded micro-caps with a story attached. No professional dealer would touch them. No chartered adviser would ever recommend them.
Fifteen years on, that picture has been replaced. The phones are gone. The room itself is largely gone. What remains, intact and operating at scale, is the trade.
How a pump and dump scheme works
The mechanic of a pump and dump scheme has not changed since the late nineties. Someone takes a position in a small, illiquid stock. They then create the impression of mass interest. Other people buy, the price rises, the original holders sell into the strength. The buyers who paid the top tick are left holding shares that drift back to where they started, often lower, when the noise stops. The whole operation depends on two things. The first: the company at the centre must be too small for the new buying to come from anyone other than the scheme operators. The second is that the buyers cannot see the seller behind the screen.
The choice of target is not random. Illiquid micro-caps are chosen because thin trading volumes mean even modest buying pressure can push the price sharply. A stock trading a few thousand shares a day can move twenty per cent on a single day of coordinated interest. Liquid large-caps cannot be moved this way. The arithmetic simply does not work. This is why pump and dump operators never target FTSE 350 companies. The scheme only works where there is almost nobody on the other side of the trade.
In 2010 the noise was made by cold callers and spam email. The retail names came off purchased lists. The calls were direct. The recipient could hear a voice on the other end of the line trying to close. A good caller would ask you to put in a small starter trade so that, having taken a position, you would defend it psychologically. A great caller would have you sending a second cheque before you had time to research the first.
How the pump and dump moved online
That model has not died. It has migrated. The contact list that used to be bought from a data broker is now a Telegram channel with eighty thousand subscribers. The script from the handset is now a P&L screenshot posted by an anonymous account with a Lamborghini for a profile picture. The closer who used to ask for the bank transfer is now a Discord group with a paid tier. The cold call has become the algorithm. TikTok and X surface the pitch to people who never asked for it, dressed up as financial education or a piece of news. The platform’s recommender does the calling for you.
What that change conceals is how little of the pump and dump trade has actually moved. The targets are still small-caps that cannot absorb buying without the price moving. The mark-up is still extracted by people who bought ahead of the publicity. The hard part of the operation is still the timing of the dump. Everything before that, the buying, the storytelling, the social proof, exists only to create the conditions under which the dump can be done without slippage.
The FCA’s ScamSmart resources have named coordinated investment fraud as a top consumer harm for several years. The FCA’s enforcement work on financial promotions in 2024 and 2025 made finfluencers a key focus, rather than call centres. Action Fraud consistently shows investment fraud losses running into hundreds of millions of pounds a year. The agency is equally consistent that what gets reported is a fraction of what actually happens. Many victims never come forward.
The reason the pump and dump keeps working is that readers cannot see whose interest is served by the post in front of them. A Telegram channel does not have to tell you its owner was sitting on a position before the channel existed. A finfluencer endorsing a stock to a million followers does not have to disclose payments made in shares or cash before the video went live. The FCA’s financial promotions regime now requires disclosure for influencers promoting regulated financial products in the UK. There have already been criminal proceedings under it. The rules are tightening. The volume of activity outside those rules is still very large.
How to recognise a pump and dump scheme
The retail reader’s defence is to recognise the structure before reading the content. The signs are old, even when the channel is new. A small-cap with a story too good to refuse. An information source that reached you without your asking for it. A heavy emphasis on urgency: get in before the market catches on. A community of voices saying the same thing at the same time, with no critical disagreement allowed. A subscription product behind which sits the person who, in any other generation, would have been in that windowless room with the script.
When you spot the structure, the appropriate response is to put the shape on the table and walk away from it. Do not check the chart again. Do not see what the price is doing. Do not buy a small starter position to keep an eye on it. That is how the pump and dump works. The mechanic depends on the small starter position. Our guide to spotting investment scams covers the broader range of schemes and the FCA registration check that protects against unauthorised operators.
Two specific habits help. One is to ask, every time, who benefits if you act on what you have just read. If that answer is not visible from the post itself, do nothing. The other is to refuse to be hurried. Genuine investment opportunities do not arrive with deadlines attached. They sit there, available, sometimes for years. A well-reasoned analyst note shows its working and names its assumptions. A pump and dump pitch never does.
Consider the anatomy of a typical case. A new Telegram channel appears, focused on a specific sector. It builds followers over several weeks with market commentary. Then a specific micro-cap is mentioned as undervalued and about to be discovered. The post includes a price target, a timeline, and social proof from other channel members. The share price moves sharply over the next few days. Then it collapses. The channel goes quiet or pivots to the next pick. Each element of that sequence maps directly onto the pump and dump mechanics described above.
The boiler room of 2010 has been disassembled. Its parts are still in circulation, fitted to different hardware, addressing larger audiences, and operating in jurisdictions the FCA will need years to reach. The pump and dump trade is the same. The script has not changed. Only the hardware has. Recognise the trade, and the channel ceases to matter.
This post is adapted from The Street Smart Trader. Used with permission.
Disclaimer: The value of investments can go down as well as up, and you may get back less than you invest. This article is for informational and educational purposes only and does not constitute financial advice. Always do your own research and consider seeking independent advice before making any investment decision.