Charles Ponzi — the coupon arbitrage that never bought a coupon

In Boston, in the summer of 1920, a 38-year-old Italian immigrant named Charles Ponzi ran a fraud so emblematic that it took his name. Through his Securities Exchange Company, founded in January 1920 at 27 School Street, Ponzi promised investors a 50 percent return in 45 days, or 100 percent in 90, by exploiting price differences in international postal reply coupons. He bought almost none. The returns paid to early investors came from the deposits of later ones, the structure now universally called a Ponzi scheme.

The outcome was a total collapse and a conviction. After the Boston Post and a state audit exposed the firm as insolvent, a run drained it, and Ponzi was arrested on August 12, 1920. Federal prosecutors charged him with 86 counts of mail fraud across two indictments; on November 1, 1920, at his wife’s urging, he pleaded guilty to a single count before Judge Clarence Hale and was sentenced to five years in the Plymouth House of Correction, of which he served about three and a half. Massachusetts then tried him on state larceny charges, securing a further sentence of roughly seven to nine years. After release he was deported to Italy on October 7, 1934, having never become a U.S. citizen. He died destitute in Rio de Janeiro on January 18, 1949.

The financial damage was concentrated and severe. Ponzi took in an estimated 15 million dollars over about eight months from roughly 30,000 to 40,000 investors, many of them working-class Bostonians and recent immigrants. When the receivers finished, note holders recovered less than 30 cents on the dollar. The figures are modest beside later frauds, but the proportional loss to the people who could least afford it was devastating, and the affair brought down a chartered bank.

What makes the case foundational is not its size but its purity. Ponzi’s scheme contained every element that would recur for a century: an exotic, hard-to-check premise; returns far above any honest market; payments funded entirely by new deposits; and a wave of trust that spread by word of mouth faster than any auditor could move. The mechanism was self-evidently doomed from the first week, and it still drew a fortune before arithmetic caught up.