How a Rogue Trader Sank Barings Bank in 1995 | Nick Leeson vs Risk Controls

Nick Leeson was supposed to be a back-office clerk at Barings Bank. Instead, he became the rogue trader who toppled Britain's oldest merchant bank in 1995. Barings was a 233-year-old institution that financed the Louisiana Purchase and helped fund Napoleonic Wars.

By the early 1990s, it was smaller and chasing trading profits to stay relevant. Leeson arrived in Singapore in 1992 to oversee operations at SIMEX. He convinced London to let him both run the back office and place trades in Nikkei 225 futures.

It was a control structure begging for trouble. At first, his bets on small price gaps between Osaka and Singapore seemed to work. Then the trades turned against him.

At first, his bets on small price gaps between Osaka and Singapore seemed to work.

Rather than report the losses, he hid them in an obscure error account: 88888. The more he concealed, the bigger the positions grew. He doubled down, hoping a quick rebound would erase the hole.

Risks multiplied as leverage and unhedged bets stacked up. Management in London saw the profits but missed the hidden exposures. Sign-offs arrived with little scrutiny.

Then nature intervened. On January 17, 1995, the Kobe earthquake rocked Japan. Markets swung wildly, and Leeson's positions imploded.

Losses ballooned past 800 million pounds - twice Barings' available capital. With cash calls piling in and no collateral left, Barings collapsed within days. The Bank of England could not stitch together a rescue; ING bought the remains for one pound.

Leeson fled, was arrested in Frankfurt, and served prison time in Singapore. Barings' board and auditors faced global embarrassment for missing the basic controls that might have stopped a single trader from wrecking a bank. Today, the Barings collapse is a case study in risk management failure: segregate duties, verify positions independently, question too-good-to-be-true returns, and never let loyalty replace oversight.