KEY POINTS
  • The Japanese yen traded just north of 140 against the U.S. dollar on Monday, after the currency breached that level at the end of last month for the first time since November.
  • Last year, Japan's Finance Ministry intervened to prop up the yen on three separate days: Sept. 22, Oct. 21 and Oct. 24 — as the currency notched 150 against the greenback, weakening to levels not seen since 1990.
  • Interventions are usually unannounced and consist of the central bank buying large amounts of yen using dollar reserves.
With the Bank of Japan maintaining its ultra dovish stance of negative interest rates, the rate differentials between the U.S. and Japan's central bank will persist, said Goldman Sachs economists.

A fresh bout of weakness in Japan's currency has lead some market watchers to predict more sizeable interventions by the country's central bank as it persists with its ultra-dovish policy in a world of high rates and high inflation.

The Japanese yen has been sliding toward levels that last prompted government officials to take action to support the currency. This as foreign investors enjoy a rally in Tokyo stocks thanks to the cheaper exchange rate.