moneygloom.com

Market: Currencies & FX

  • Black Wednesday: The £10B Sterling Short

    In September 1992, George Soros and Stanley Druckenmiller executed the quintessential asymmetric currency trade: shorting the British Pound against the German Deutsche Mark as Britain struggled to maintain ERM parity during a severe economic contraction.

    The Setup

    Britain entered the European Exchange Rate Mechanism (ERM) in 1990 at an overvalued rate of 2.95 DM per pound. When the German Bundesbank raised interest rates to combat inflationary pressures from German reunification, the Bank of England was forced to keep UK rates punitive, strangling British homeowners and small businesses.

    The Short Execution

    The Quantum Fund borrowed billions of pounds and aggressively converted them into Deutsche Marks, betting that central bank FX reserves would be exhausted before the British government would sacrifice the domestic economy.

    The Collapse

    On Black Wednesday (September 16, 1992), despite spending billions in reserves and raising UK base rates from 10% to 15% in a single trading session, Britain capitulated. The pound crashed out of the ERM, devaluing by ~15%, netting the Quantum Fund over $1 billion in profit.

  • Breaking the Bank of England: George Soros and Black Wednesday

    In the late summer of 1992, British Chancellor Norman Lamont maintained that the United Kingdom would defend the Pound Sterling inside the European Exchange Rate Mechanism (ERM) at all costs. In New York, legendary macro investor George Soros and his chief strategist Stanley Druckenmiller saw a catastrophic sovereign miscalculation.

    The ERM Trap and Economic Divergence

    The ERM required member nations to keep their exchange rates tied to the German Deutsche Mark. But while post-reunification Germany was raising interest rates to combat inflation, the UK was deep in recession with surging unemployment. Defending the artificially strong pound required the Bank of England to keep interest rates intolerantly high, suffocating the domestic economy.

    The $10 Billion Short

    Recognizing that the Bank of England’s foreign currency reserves were finite while the capital markets’ supply of pounds was effectively infinite, Soros famously instructed Druckenmiller to ‘go for the jugular,’ ramping their short position to $10 billion.

    Black Wednesday: September 16, 1992

    Despite emergency interest rate hikes by the Bank of England from 10% to 12% and then 15% in a single day, the flood of selling overwhelmed central bank reserves. By 7:30 PM, Lamont conceded defeat and withdrew Britain from the ERM. The Quantum Fund pocketed an estimated $1 billion in clear profit within 24 hours.