Yen Surges After Joint Intervention by Japan and US

The yen surged against the dollar on Monday, reaching an intraday high of 155.20, its strongest since early May.

This sudden jump has put traders on alert for further intervention by Japanese authorities to shore up the currency.

Japanese Finance Minister Satsuki Katayama declined to comment on whether there was intervention on Monday.

Experts weigh in on the matter, with some suggesting that the market is not bothered by these interventions and that a change in fundamentals would be necessary for things to shift.