Sterling Crisis: A Look At Unpalatable Policy Options

 | Sep 26, 2022 12:14PM ET

Unlike equity markets, where a fall of more than 20% from a peak is called a bear market, definitions in FX markets are somewhat looser. Suffice it to say that GBP/USD is the worst-performing G10 currency this year at -20% year-to-date, just pipping the Japanese yen to that position. (Japan intervened last week to support its currency for the first time since 1998).

Typical emerging market currency crises since the early 1990s have seen exchange rates fall anywhere near 50-80%. The large size of these adjustments has typically been a function of the breaking of an exchange rate regime/peg. The UK has learned from its experiences in ERM II in 1992 and has operated a free-floating FX regime ever since – arguing against sterling following some of the outsized EM FX adjustments outlined above.

However, the 3.5% decline in Asia overnight and the now 28% levels for one week traded GBP/USD volatility (close to the highs in March 2020) certainly marks trading out as ‘disorderly’. Disorderly markets normally prompt a response from policymakers.

Below we take a look at the possible policy responses and their likelihood.

h2 GBP/USD Sinks Towards Parity As One-Week Volatility Surges/h2