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The Ponzi scheme

In a Ponzi scheme the first investors get their returns from the money of later ones. That works as long as more money comes in than goes out. After that it collapses.

1 min read Last checked: 2026-09-09

The principle is over a hundred years old and has hardly changed. In 1920 Charles Ponzi promised people in Boston 50 percent profit in 45 days. Someone promises high and steady returns. The first investors really do get money paid out. But it doesn't come from any profit, it's the newcomers' money.

Because the first investors see real money, they tell others. That's what drives the whole thing. A recommendation from someone you trust works better than any advertising.

The collapse is certain. For everyone to be paid, more and more new money has to come in. If the inflow stalls or many want to withdraw at once, there's nothing left.

The most reliable warning signs: steady returns whatever happens in the markets. No clear explanation of where the money comes from. Bonuses for recruiting new participants. And paying in goes smoothly while paying out gets stuck.

Summary

  • A steady return without losing months isn't a sign of quality. It's suspicious.
  • Check which independent entity holds the assets.
  • Bonuses for recruiting new participants are the clearest signal.

Did you get it?

Where do the payouts come from?

From the money of participants who join later, not from profits.

Why is a very steady return suspicious?

Because every real source of income swings.

Which structural check is most effective?

Whether management and custody are separate and who holds the assets independently.

Sources and further reading

  • U.S. SEC investor-education site (Investor.gov) on how Ponzi schemes work. View source ↗

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