A Ponzi scheme (, Italian: [pontsi]) is a form of fraud that lures investors and pays profits to earlier investors with funds from more recent investors. Named after Italian businessman Charles Ponzi, the scheme leads victims to believe that profits are coming from legitimate business activity (e.g., product sales or successful investments), and they remain unaware that other investors are the source of funds. A Ponzi scheme can maintain the illusion of a sustainable business as long as new investors contribute new funds, and as long as most of the investors do not demand full repayment and still believe in the non-existent assets they are purported to own.

Some of the first recorded incidents to meet the modern definition of the Ponzi scheme were carried out from 1869 to 1872 by Adele Spitzeder in Germany and by Sarah Howe in the United States in the 1880s through the "Ladies' Deposit". Howe offered a solely female clientele an 8% monthly interest rate and then stole the money that the women had invested. She was eventually discovered and served three years in prison. The Ponzi scheme was also previously described in novels; Charles Dickens' 1844 novel Martin Chuzzlewit and his 1857 novel Little Dorrit both feature such a scheme.In the 1920s, Charles Ponzi carried out this scheme and became well known throughout the United States because of the huge amount of money that he took in. His original scheme was based on the legitimate arbitrage of international reply coupons for postage stamps, but he soon began diverting new investors' money to make payments to earlier investors and to himself. Unlike earlier similar schemes, Ponzi's gained considerable press coverage both within the United States and internationally both while it was being perpetrated and after it collapsed this notoriety eventually led to the type of scheme being named after him.



Bernard Lawrence Madoff ( MAY-dawf; April 29, 1938 – April 14, 2021) was an American fraudster and financier who ran the largest Ponzi scheme in history, worth about $64.8 billion. He was at one time chairman of the NASDAQ stock exchange. He advanced the proliferation of electronic trading platforms and the concept of payment for order flow, which has been described as a "legal kickback".

Madoff founded a penny stock brokerage in 1960, which eventually grew into Bernard L. Madoff Investment Securities. He served as the company's chairman until his arrest on December 11, 2008. That year, the firm was the 6th largest market maker in S&P 500 stocks.At the firm, he employed his brother Peter Madoff as senior managing director and chief compliance officer, Peter's daughter Shana Madoff as the firm's rules and compliance officer and attorney, and his now deceased sons Mark Madoff and Andrew Madoff. Peter was sentenced to 10 years in prison in 2012, and Mark died by suicide by hanging in 2010, exactly two years after his father's arrest. Andrew died of lymphoma on September 3, 2014.On December 10, 2008, Madoff's sons Mark and Andrew told authorities that their father had confessed to them that the asset management unit of his firm was a massive Ponzi scheme, and quoted him as saying that it was "one big lie". The following day, agents from the Federal Bureau of Investigation arrested Madoff and charged him with one count of securities fraud. The U.S. Securities and Exchange Commission (SEC) had previously conducted multiple investigations into his business practices but had not uncovered the massive fraud. On March 12, 2009, Madoff pleaded guilty to 11 federal felonies and admitted to turning his wealth management business into a massive Ponzi scheme. The Madoff investment scandal defrauded thousands of investors of billions of dollars. Madoff said that he began the Ponzi scheme in the early 1990s, but an ex-trader admitted in court to faking records for Madoff since the early 1970s. Those charged with recovering the missing money believe that the investment operation may never have been legitimate. The amount missing from client accounts was almost $65 billion, including fabricated gains. The Securities Investor Protection Corporation (SIPC) trustee estimated actual losses to investors of $18 billion, of which $14.418 billion has been recovered and returned, while the search for additional funds continues. On June 29, 2009, Madoff was sentenced to 150 years in prison, the maximum sentence allowed. On April 14, 2021, he died at the Federal Medical Center, Butner, in North Carolina, after suffering from chronic kidney disease.