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Episode 3 · Charles Ponzi

Ponzi Scheme: How Charles Ponzi Turned His Name Into a Crime

Published 19 October 2026 · 6 min read

Charles Ponzi

Between December 1919 and August 1920, Charles Ponzi, an Italian immigrant who had arrived in Boston in 1903, took in between 15 and 20 million dollars of the time from about 40,000 people. He promised a 50% return in 45 days by trading international postal reply coupons. In reality he spent less than 100 dollars on coupons: he paid early investors with money from those who came after them. On August 12, 1920, his company collapsed and he was arrested on 86 counts of mail fraud. Today his surname is the name of the crime: the Ponzi scheme.

In 30 seconds

  • Ponzi founded the Securities Exchange Company in December 1919 and promised a 50% return in 45 days.
  • By spring 1920 a million dollars a week was coming in; on his best days, a million in a single day.
  • Paying what he promised would have required about 160 million coupons; roughly 27,000 were in circulation.
  • The Boston Post exposed the fraud and won the 1921 Pulitzer Prize for Public Service.

From Lugo to Boston: who Charles Ponzi was

Carlo Ponzi was born in 1882 in Lugo, in northern Italy, into a respectable family that had fallen on hard times. He enrolled at the University of Rome and dropped out. In 1903 he sailed for the United States and, by his own account, stepped off in Boston with two dollars and fifty cents: he had gambled the rest away at cards during the crossing.

For fifteen years he washed dishes, forged a signature and went to prison twice. At 37 he still had nothing. In August 1919 he received a letter from Europe with a small slip inside: an international postal reply coupon, which let the recipient of a letter answer without paying for the stamp. Ponzi saw a business in it.

How the fraud worked, step by step

The starting idea sounded reasonable. Europe was coming out of the First World War with heavily devalued currencies, so a coupon bought in Italy or Spain cost a fraction of what it was worth when exchanged in the United States. Buy cheap there, redeem high here, keep the difference. On paper it was a legal arbitrage.

In December 1919 Ponzi set up a company with a serious, dull name, the Securities Exchange Company, and went looking for money with a precise promise: a 50% return in 45 days. A hundred dollars today, a hundred and fifty in a month and a half.

The first group was small: wary neighbors who put in a little. After 45 days they were paid to the last cent, and they told their relatives, their friends, their landlady. Ponzi also paid commissions to agents for every new client they brought in. By spring 1920 the line outside his offices on School Street wrapped around the block. Police officers, priests, laborers and widows stood in it. Many mortgaged their homes to invest more.

The real mechanism was something else. Ponzi was not buying coupons. Paying what he promised would have required about 160 million coupons circulating worldwide, and there were roughly 27,000. The first investors were paid with the money of the second; the second, with that of the third. The system held only as long as more people came in each month than the month before.

What a Ponzi scheme is. It is an investment fraud in which a central operator collects the money, promises a high and steady return, and pays those supposed profits out of new investors' deposits. The client believes the money is working in a real business and does not need to recruit anyone to get paid.

How it differs from a pyramid scheme. In a pyramid scheme participants earn mainly by bringing in people below them, and they know it: recruitment is the business itself. In a Ponzi scheme recruitment happens by word of mouth from those who have already been paid, while the investor believes there is a profitable activity behind it. Ponzi's case combined both: a fictitious business and commissions for bringing in clients. Both formulas end the same way, because neither creates value.

The question that brought him down

By summer 1920 Ponzi lived in a mansion in Lexington with a heated pool, had a chauffeured limousine, a cane with a gold handle and control of the Hanover Trust bank. Newspapers called him a financial wizard.

The first crack came from Clarence Barron, the country's leading financial expert and owner of The Wall Street Journal. Asked for his opinion, Barron did the math: there were not enough coupons in the world to move that much money. He added an awkward detail. Ponzi kept his own fortune not in coupons but in banks, at low interest. If he believed in his business, why wasn't he investing in it?

The Boston Post published those doubts, and its publisher, Richard Grozier, sent reporters to dig into Ponzi's past. Ponzi answered with a five-million-dollar lawsuit against the paper and went out to greet his public. People kept lining up. If so many neighbors had been paid, it could not be a lie.

On August 11, 1920, the Post published a police record from Montreal: a certain Carlo Ponzi had been jailed for forgery. That morning the line reversed direction. The same crowd that had come to hand over its money now came to take it back. Ponzi served coffee and doughnuts and in three days paid out about two million dollars. It was not enough. The state sent an auditor to go through his books, and the conclusion was simple: no coupons, no investments, and millions owed that he did not have. On August 12 the company collapsed and Ponzi was arrested.

What happened next

The toll was about 40,000 people and between 15 and 20 million dollars of the time. Six banks are commonly cited as having failed in the collapse, dragged down by the fall of the Hanover Trust. Investors recovered a few cents on the dollar, and many had put in their life savings. The Boston Post received the 1921 Pulitzer Prize for Public Service.

Ponzi served time first on the federal charges and then on the state ones. Out on bail, he tried again: in 1925, in the middle of the Florida land boom, he sold lots through the Charpon Land Syndicate, promising to multiply the investment tenfold. Many lots were underwater. He was convicted again, tried to flee disguised as a sailor and was caught in New Orleans.

In 1934 the United States deported him to Italy; none of his projects there took off and he ended up in Brazil. He died on January 18, 1949, in the charity ward of a hospital in Rio de Janeiro, half blind and partly paralyzed. The man who had moved millions left about 75 dollars for his burial.

Law No. 3 of Deception and how to spot it today

Every MATERIUM case leaves a law. Ponzi's is this: pay the first ones, and they'll bring you the next. His strongest argument was never the postal coupon, which hardly anyone understood. It was the neighbor showing off the cash. The greed of a 50% return and the trust in someone who had already been paid worked together, and neither needed to know where the money came from.

A century later the structure is intact. Only the disguise changes:

  • Crypto with a fixed return. A platform promising a guaranteed 10% a month is not describing an investment, it is describing a promise. No real asset returns the same amount every month.
  • "Investment" groups on WhatsApp or Telegram. Screenshots of other members' gains, a mentor who replies fast, the feeling that everyone is getting paid. It is the School Street line in chat form.
  • The acquaintance who already doubled their money. A trusted person's testimony does not prove the business exists; it proves that person was paid, perhaps with someone else's money.
  • Bonuses for bringing people in. If you earn more from recruiting than from the supposed business, recruiting is the business.
  • Few questions allowed. Vague explanations ("arbitrage", "algorithmic trading", "mining"), pressure to get in fast and to reinvest rather than withdraw.

The warning sign comes down to one question nobody in Boston asked until Barron did: where exactly does the money I'm being paid come from? If the answer is that others have already been paid, that is not an answer.

The full episode

He did not even invent the scheme that bears his name: decades earlier, in 1870s Madrid, a woman had half the city lining up for the same thing. The full story of Charles Ponzi, with archive images of Boston and a reconstruction of how he fell, is in episode 3 of MATERIUM on YouTube.

The full episodeWhy Every Ponzi Scheme Bears His Name Premieres on YouTube on 23 October

Frequently asked questions

What is a Ponzi scheme?

It is an investment fraud that promises high returns and pays early investors with money from later ones, not with real profits. It works while new money keeps coming in and collapses when it stops.

What is the difference between a Ponzi scheme and a pyramid scheme?

In a Ponzi scheme the investor believes their money sits in a business run by someone else and doesn't need to recruit anyone. In a pyramid scheme participants earn mainly by bringing in people below them, and that structure is visible.

How much money did Charles Ponzi take?

Between 15 and 20 million dollars of the time, from about 40,000 people, in roughly eight months between 1919 and 1920. Investors got back only a few cents on the dollar.

How did Charles Ponzi die?

He died on January 18, 1949, in the charity ward of a hospital in Rio de Janeiro, half blind and partly paralyzed. He left about 75 dollars for his burial.

Sources

  • Encyclopaedia Britannica, "Charles Ponzi"
  • Smithsonian Magazine (1998), on Charles Ponzi
  • Mitchell Zuckoff, Ponzi's Scheme (2005)
  • Poynter, on the Boston Post's 1921 Pulitzer
  • EBSCO Research Starters, "Charles Ponzi"