The scam where your broker is real: groups that pump up cheap shares

Updated on November 7, 2026 · 3 min read

In short: almost everything we publish is about fake platforms. This scam is different: you use your usual broker and buy a real share. A WhatsApp or Telegram “investment club” tells you what to buy and when. The organisers already held those shares, and they sell once you and the other members have pushed the price up. The FBI calls it ramp-and-dump, and in July 2025 it warned that complaints had risen by at least 300% on the previous year.

How it works

1. The ad. You see an ad or receive a message inviting you to an investors’ club. It often uses the name of a well-known analyst or a real firm.
2. The group. You are taken to a chat. Many members are fake accounts celebrating their profits.
3. The trust. For days or weeks, you get tips on well-known shares. Some work out, and nobody asks you for money.
4. The signal. The day comes: you are told to buy a cheap, thinly traded share at a specific time. Because many people buy at once, the price shoots up.
5. The exit. The organisers bought earlier and sell at the top. The price collapses within minutes or a few days, and you often cannot sell in time.

Why it fools people

The warning signs of other scams do not work here:

• The broker is regulated, because it is yours.
• The share exists and is listed on a market.
• You can withdraw your money, whatever is left of it.
• Nobody asks you to send money to a strange account.

Checking the platform on the regulator’s register warns you of nothing. What is wrong is not the platform, but the advice.

The signs that do work

• A stranger gives you free investment tips in a messaging group.
• The group carries the name of an analyst or bank, but nobody offers you a contract or a way to verify it.
• You are given a specific share and an exact time to buy.
• It is a small company you knew nothing about, with a sudden rise.
• They insist you do not mention it outside the group, or that you buy right now.
• The celebration messages look too much alike.

What to do

• Do not buy on a signal from a group. No authorised advisor acts like this.
• Leave the group and block whoever added you.
• If you have already bought, ask your broker what options you have and keep screenshots of the chat.
• Report it to your country’s regulator: how to report. Market manipulation falls within its remit.
• Distrust anyone who later offers to recover what you lost: that is a second scam.

If you were taken to a platform of their own rather than your broker, that is the classic variant: read about fake WhatsApp and Telegram groups.

What we do not know

The FBI warning refers to investors in the United States. We do not detect this scam in our ads, because here the ad only invites you to a group and mentions no platform. Nor do we have figures for Spain or Latin America. We explain it because its signs are different and because the method works with any broker.